CN1497779A - Antenna and electronic device using the same - Google Patents
Antenna and electronic device using the same Download PDFInfo
- Publication number
- CN1497779A CN1497779A CNA2003101025347A CN200310102534A CN1497779A CN 1497779 A CN1497779 A CN 1497779A CN A2003101025347 A CNA2003101025347 A CN A2003101025347A CN 200310102534 A CN200310102534 A CN 200310102534A CN 1497779 A CN1497779 A CN 1497779A
- Authority
- CN
- China
- Prior art keywords
- antenna
- axis
- electrode
- main body
- antenna according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
The present invention relates to an antenna and an electronic device using the same. The present invention aims to miniaturize an antenna and an electronic device using the same. To achieve this, an antenna electrode (19) is provided on the surface of a main body (18), a ground electrode (20) is provided on the back surface side, and a signal electrode (21) is provided on the outer peripheral surface, and the antenna electrode (19) is formed so that the lengths of the X axis and the Y axis are different. Since a wide-band antenna can be manufactured by using 1 antenna, the antenna can be miniaturized.
Description
Technical field
The present invention relates to antenna and use its electronic equipment.
Background technology
At existing electronic equipment, for example in the personal computer, often accomplished to use this personal computer can carry out various communication services by inserting communication module at its slotted section.Communication module can be carried out such communication in order to accomplish, within it portion be provided with antenna technology for example in Japanese kokai publication hei 9-98015 communique, introduced.
What become problem in existing electronic equipment is exactly that antenna maximizes.That is, in communication mode in recent years, the frequency of utilization broad in band for the communication mode with such is corresponding at large, must make the antenna broad in band.If want to realize such all channel antenna, must strengthen antenna volume.
Summary of the invention
Purpose of the present invention makes antenna miniaturization exactly.
For reaching above-mentioned purpose, the present invention should possess the main body with planar section; Be set at the antenna electrode of the planar section of this main body; The signal electrode that on circuit, combines with this antenna electrode; And be oppositely arranged the grounding electrode that is set up like that with the antenna electrode of described main body, and described antenna electrode makes X-axis and with its quadrature or roughly the length of the Y-axis of quadrature is inequality.Except that antenna electrode only being made the length difference of its X-axis, Y-axis, can also have 2 resonance characteristics by 1 antenna utilization, and make the synthetic formation of these resonance characteristics all channel antenna.Therefore, all channel antenna can be made, the miniaturization of antenna can be helped with 1 antenna.
In addition, antenna of the present invention possesses the mainboard of being made up of conductor plate, and the radiant panel of being made up of the conductor plate that is oppositely arranged with this mainboard, the X-axis of this radiant panel and with its quadrature or roughly the length of the Y-axis of quadrature is inequality.And, on electrical length, roughly be to use the half-wavelength of frequency.And, antenna of the present invention is the conductor with power supply usefulness, the conductor of this power supply usefulness is the intersection point that is set at the X-axis of radiant panel and Y-axis, in the end that diaxon is had the radiant panel on the straight line of miter angle degree roughly, described radiant panel is had the crooked and antenna that constitutes of an angle of 90 degrees degree roughly like that downwards.
Therefore, by perforation processing or etching and processing the conductor plate of flat shape is processed into suitable shape, by the conductor part bending that makes power supply usefulness with punch process etc. antenna can be realized, owing to can make the manufacture method summary of antenna, so can realize cheapness, high-quality antenna.
In addition, antenna of the present invention can be realized the miniaturization of high radiation gain and antenna by making the equipping position optimization to the conductor of the equipping position of the radiant panel of mainboard and power supply usefulness.
In addition, electronic equipment of the present invention possesses circuit substrate and is installed in the lip-deep antenna of this circuit substrate, described antenna possesses the main body with planar section, be arranged on the antenna electrode of the planar section of this main body, and the grounding electrode that is arranged on the main part that is oppositely arranged with this antenna electrode, with described antenna electrode be set at make X-axis with this X-axis quadrature or the different structure of length of the Y direction of quadrature roughly, and, described circuit substrate has signal electrode, and makes the non-electrode part of the grounding electrode on this signal electrode and the grounding electrode that is arranged on described antenna divide relative setting.
Because the position of the non-electrode part of the grounding electrode that is oppositely arranged of signal electrode by the change circuit substrate, the impedance of control antenna freely, therefore the simple and easy method of the installation site by changing antenna can be at the broad frequency range designing antenna.
Description of drawings
Fig. 1 has been to use the stereogram of the electronic equipment of the antenna that relates to example of the present invention.
Fig. 2 is the sectional drawing of this electronic equipment part.
Fig. 3 is contained in the circuit block diagram in the electronic equipment in being.
Fig. 4 A relates to the stereogram of antenna surface one side of example of the present invention, the stereogram of the back side one side of this antenna of Fig. 4 B.
Fig. 5 A relates to the plane graph of antenna of the present invention, and Fig. 5 B～Fig. 5 E is respectively the side view of this antenna, and Fig. 5 F is the back view of this antenna.
Fig. 6 is the VSWR performance plot.
Fig. 7 A relates to the stereogram of antenna surface one side of other example of the present invention, and Fig. 7 B is the stereogram of the back side one side of this antenna.
Fig. 8 A relates to the plane graph of the antenna of other example of the present invention, and Fig. 8 B is the end view of this antenna, and Fig. 8 C is the back view of this antenna.
Fig. 9 A relates to the plane graph of the antenna of other example of the present invention, and Fig. 9 B is the end view of this antenna, and Fig. 9 C is the back view of this antenna.
Figure 10 is the plane graph of circuit substrate that expression relates to the electronic equipment of one embodiment of the present of invention.
Figure 11 A relates to be installed in the plane graph of the antenna of the present invention on the circuit substrate of electronic equipment of Figure 10, Figure 11 B is mounted in the end view of this antenna on the circuit substrate of electronic equipment of Figure 10, and Figure 11 C is mounted in the back view of this antenna on the circuit substrate of electronic equipment of Figure 10.
Figure 12 A～Figure 12 C is respectively the impedance operator figure of the antenna of Figure 11 of using in electronic equipment of the present invention.
Figure 13 A relates to the stereogram of the antenna of other example of the present invention, and Figure 13 B is the end view of this antenna.
Figure 14 A relates to the stereogram of the antenna of other example of the present invention, and Figure 14 B is the end view of this antenna.
Figure 15 A relates to the stereogram of the antenna of other example of the present invention, and Figure 15 B is the end view of this antenna.
Figure 16 A relates to the stereogram of the antenna of other example of the present invention, and Figure 16 B is the vertical view of this antenna.
Figure 17 A relates to the vertical view of the antenna of other example of the present invention, and Figure 17 B is the vertical view of this antenna.
Figure 18 A relates to the stereogram of the antenna of other example of the present invention, and Figure 18 B is the end view of this antenna.
Figure 19 A relates to the stereogram of the antenna of other example of the present invention, and Figure 19 B is the vertical view of this antenna.
Figure 20 A relates to the 1st layer of exploded perspective view of the antenna of other example of the present invention, and Figure 20 B is the 2nd a layer of exploded perspective view of this antenna, and Figure 20 C is the 3rd a layer of exploded perspective view of this antenna, and Figure 20 D is the 4th a layer of exploded perspective view of this antenna.
Figure 21 A relates to the stereogram of the antenna of other example of the present invention, and Figure 21 B is the sectional drawing of this antenna, and Figure 21 C is the vertical view of this antenna, Figure 21 D is the 1st end view of this antenna, Figure 21 E is the 2nd end view of this antenna, and Figure 21 F is the 3rd end view of this antenna
Figure 21 G is the 4th end view of this antenna, and Figure 21 H is the upward view of this antenna.
Figure 22 A relates to the stereogram of the antenna of other example of the present invention, Figure 22 B is the sectional drawing of this antenna, Figure 22 C is the vertical view of this antenna, Figure 22 D is the 1st end view of this antenna, Figure 22 E is the 2nd end view of this antenna, Figure 22 F is the 3rd end view of this antenna, and Figure 22 G is the 4th end view of this antenna, and Figure 22 H is the upward view of this antenna.
Figure 23 A relates to the stereogram of the antenna of other example of the present invention, Figure 23 B is the sectional drawing of this antenna, Figure 23 C is the vertical view of this antenna, Figure 23 D is the 1st end view of this antenna, Figure 23 E is the 2nd end view of this antenna, Figure 23 F is the 3rd end view of this antenna, and Figure 23 G is the 4th end view of this antenna, and Figure 23 H is the upward view of this antenna.
Figure 24 A relates to the stereogram of the antenna of other example of the present invention, Figure 24 B is the sectional drawing of this antenna, Figure 24 C is the vertical view of this antenna, Figure 24 D is the 1st end view of this antenna, Figure 24 E is the 2nd end view of this antenna, Figure 24 F is the 3rd end view of this antenna, and Figure 24 G is the 4th end view of this antenna, and Figure 24 H is the upward view of this antenna.
Figure 25 A relates to the stereogram of the antenna of other example of the present invention, Figure 25 B is the sectional drawing of this antenna, Figure 25 C relates to the vertical view of the antenna of other example of the present invention, Figure 25 D relates to the 1st end view of the antenna of other example of the present invention, Figure 25 E relates to the 2nd end view of the antenna of other example of the present invention, Figure 25 F relates to the 3rd end view of the antenna of other example of the present invention, Figure 25 G relates to the 4th end view of the antenna of other example of the present invention, and Figure 25 H relates to the upward view of the antenna of other example of the present invention.
Figure 26 A relates to the stereogram of the antenna of other example of the present invention, Figure 26 B is the sectional drawing of this antenna, Figure 26 C is the vertical view of this antenna, Figure 26 D is the 1st end view of this antenna, Figure 26 E is the 2nd end view of this antenna, Figure 26 F is the 3rd end view of this antenna, and Figure 26 G is the 4th end view of this antenna, and Figure 26 H is the upward view of this antenna.
Figure 27 A relates to the stereogram of the antenna of other example of the present invention, Figure 27 B is the sectional drawing of this antenna, Figure 27 C is the vertical view of this antenna, Figure 27 D is the 1st end view of this antenna, Figure 27 E is the 2nd end view of this antenna, Figure 27 F is the 3rd end view of this antenna, and Figure 27 G is the 4th end view of this antenna, and Figure 27 H is the upward view of this antenna.
Figure 28 A relates to the stereogram of the antenna of other example of the present invention, and Figure 28 B is the sectional drawing of this antenna, and Figure 28 C is the vertical view of this antenna, Figure 28 D is the 1st end view of this antenna, Figure 28 E is the 2nd end view of this antenna, and Figure 28 F is the 3rd end view of this antenna
Figure 28 G is the 4th end view of this antenna, and Figure 28 H is the upward view of this antenna.
Figure 29 relates to the stereogram of the antenna of other example of the present invention.
Figure 30 A to Figure 30 C is impedance operator and radiation pattern.
Figure 31 A to Figure 31 C is impedance operator and radiation pattern.
Figure 32 A relates to the top stereogram of the antenna of other example of the present invention, and Figure 32 B is the following stereogram of this antenna.
Figure 33 A to Figure 33 C is impedance operator and radiation pattern.
Figure 34 A relates to the stereogram of the antenna of other example of the present invention, and Figure 34 B is the vertical view of this antenna.
Figure 35 A to Figure 35 B relates to the radiation characteristic and the axial ratio performance plot of antenna of the present invention.
Figure 36 A relates to the stereogram of the antenna of other example of the present invention, and Figure 36 B is the stereogram of this antenna.
Figure 37 is the skeleton diagram that expression relates to method for manufacturing antenna of the present invention.
Figure 38 A is expression does not fixedly load inductor the radiation characteristic curve of occasion between the conductor end portion of usefulness and the mainboard figure, Figure 38 B be illustrated between the conductor end portion of fixing usefulness and the mainboard inductor loaded the figure of radiation characteristic curve of occasion.
Figure 39 relates to the stereogram of the antenna of other examples of the present invention.
Figure 40 A～Figure 40 D is the axial ratio characteristic of occasion of the equipping position on the mainboard of change radiant panel and the figure of radiation characteristic.
Figure 41 A～Figure 41 B relates to the stereogram of the antenna of other example of the present invention.
Figure 42 relates to the stereogram of the antenna of other example of the present invention.
Figure 43 A, Figure 43 B and Figure 43 D are the radiation patterns that has changed the occasion of notch portion that relates to other example of the present invention and the conductor position of powering usefulness, and Figure 43 C, Figure 43 E and Figure 43 F relate to the stereogram and the radiation pattern of the antenna of other example of the present invention.
Figure 44 A～Figure 44 C is the stereogram of antenna of occasion of equipping position of the expression conductor that changed power supply usefulness and the figure of radiation characteristic curve.
Figure 45 relates to the stereogram of the antenna of other example of the present invention.
Figure 46 A relates to the front view of the electronic equipment of other example of the present invention, and Figure 46 B is the stereogram of this electronic equipment.
Embodiment
Below, according to a description of drawings example of the present invention.
In Fig. 1, Fig. 2, notebook-sized personal computer 1 possesses importation 2 and display part 3.In addition, 2 side is provided with slot 4 in the importation, inserts communication module 5 in slot 4.
In communication module 5, as shown in Figure 2, in tabular shell 6, be provided with circuit substrate 7, various electronic components 8 have been installed on this circuit substrate 7.In addition, in the occasion of having faced Fig. 2, be provided with at the right side of circuit substrate 7 branch and be used to the connector 9 that is inserted into slot 4 and obtains electric coupling.Similarly, front view 2 has been installed antenna 10 in the left part of circuit substrate 7.
That is, when the shell among Fig. 26 was inserted into the slot 4 of Fig. 1, antenna 10 became the state that is projected into the outside from slot 4, and the transmission that therefore utilizes antenna 10 might carry out signal receives.
In representing, Fig. 3 is contained in an example of the circuit block diagram that relates in the electronic equipment of the present invention.In Fig. 3, antenna 10 is connected to switch 11, connects amplifier 13 at the contact 11a of switch 11 to transtation mission circuit 12, filter 14, and, connect filter 16, amplifier 17 at contact 11b to receiving circuit 15.Therefore, can communicate with other electronic equipment via antenna 10.
Fig. 4 A～Fig. 4 B represents an example of antenna 10.Tabular main body 18 represented in Fig. 4 A for example constitutes with aluminium oxide, in its surperficial side, roughly sintering forms the antenna electrode of being made up of silver, palladium 10 on one side, in addition, in the back side of main body 18 side, like that, sintering forms the grounding electrode of being made up of silver, palladium electrode 20 on its roughly whole shown in Fig. 4 B.
In addition, in the outer peripheral face part of main body 18, with antenna electrode 19, grounding electrode 20 contactless states under be provided with signal electrode 21.Like this, if adopt the non-contact power mode, so just can be adjusted at the coupling capacitance that is caused between antenna electrode 19 and the signal electrode 21 easily.That is, for example, adjust its size, shape,, will be associated with the adjustment coupling capacitance because the coupling area of the essence between them can change if mechanically or chemically grind the noncontact part.The discrete discrepancy of the antenna performance in the time of therefore, can reducing antenna significantly and produce in a large number.
That represented this point in more detail is Fig. 5 A～Fig. 5 F.In Fig. 5 A, the length of the X-direction of antenna electrode 19 becomes λ 2, and the length of Y direction becomes λ 1, makes their length difference.In addition, signal electrode 21 is arranged on corresponding to being Fig. 4 A of the directions of 45 degree, the outer peripheral portion shown in Fig. 4 B at the intersection point of X-axis, Y-axis each.
Be set at the occasion of such formation, a line that can enough Fig. 6 is represented the length lambda 2 getable resonance characteristics by the X-direction shown in Fig. 5 A, represents length lambda 1 getable resonance characteristic by Y direction with the b line.Signal electrode 21 as described above, owing to be arranged on corresponding to being the outer peripheral portion of the directions of 45 degree to X-axis and Y-axis, therefore can access such broadband character of representing with the c line of Fig. 6 of synthetic these both sides' characteristic.
In other words, as what also understand, obtain broadband character the c line that tabular antenna can resemble Fig. 6 by forming from Fig. 4, Fig. 5 A～Fig. 5 F.Like this, if obtain broadband character, so just use the wide frequency band also can be with 1 antenna correspondence to communication module.In addition, because therefore miniaturization, the low level that also can seek to carry can make a communication module and a basket compact in size of overlapping (set) equipment.
In addition, be provided with from the connection electrode 20a of grounding electrode 20 in other place of the outer peripheral portion of main body 18 to other substrate.In addition, shown in Fig. 5 F, be provided with signal electrode 21a like that to other holding wire of signal electrode 21.
Fig. 7 A to Fig. 7 B, Fig. 8 A to Fig. 8 C represent to relate to the antenna of other example of the present invention.Fig. 7 A, Fig. 7 B should be set at diamond shape with main body 18.Even such diamond shape also should make the X-axis of main body 18, the length difference of Y-axis, and from each intersection point 45 the degree directions on signalization electrode 21.
Fig. 8 A to Fig. 8 C should make main body 18 become ellipse, makes its X-axis, the length difference of Y-axis, and from each intersection point 45 the degree direction signalization electrodes 21.
Fig. 9 represents other example of the bound fraction of antenna electrode 19 and signal electrode 21.The bound fraction of antenna electrode 19 and signal electrode 21 should be become concaveconvex shape and be oppositely arranged.That is, have the shape of 3 protuberances and 2 recesses, set the shape that antenna electrode 19 has 2 protuberances in above-mentioned 2 recesses that protrude into signal electrode 1, can between them, obtain the relative area of broad by setting signal electrode 21.Therefore, can guarantee coupling capacitance between antenna electrode 19 and the signal electrode 21 in advance significantly.The setting of coupling capacitance can realize by for example machinery or the concaveconvex shape adjustment relative area between the two that chemically grinds them.That is and since possess the signal electrode of the present invention 21 of concaveconvex shape can widen antenna electrode 19 and signal electrode 21 between the adjusting range of coupling capacitance, therefore can improve the degree of freedom of the impedance adjusting range of antenna.
Figure 10, Figure 11 A～Figure 11 B and Figure 12 A～Figure 12 C represent other example of the present invention.In these examples, have circuit substrate 7a, replace circuit substrate 7 shown in Figure 2.This circuit substrate 7a heart part therein is arranged to rectilinear form with signal line 7b.And, in the part of the signal line 7b of this circuit substrate 7a antenna 19f shown in Figure 11 is installed.
In addition,, grounding electrode 20a is set as Figure 11 C, the non-electrode part 20b of grounding electrode 20a is set respectively in directions X, Y direction from the corner portions located of grounding electrode 20a in the back side of the 1st main body 18a one side.
In other words, should accomplish that the non-electrode part 20b of this grounding electrode 20a becomes the installation configuration section of the signal line 7b among Figure 10,19f as shown in Figure 10 fixes up an aerial wire.In other words, in this Figure 10, Figure 11 A～Figure 11 C, do not have the signalization electrode at antenna 19f, signal electrode is arranged on circuit substrate 7a one side as shown in Figure 10.And, use this signal line 7b that antenna 19f shown in Figure 10 is powered.
In this occasion, by any part be oppositely arranged with signal line 7b at the non-electrode part 20b of grounding electrode 20a, carry out the adjustment of the input impedance of the antenna shown in Figure 12 A～Figure 12 C.
That is, move to Y direction, resemble and the input impedance of antenna 19f can be adjusted to solid line J from dotted line H, I Figure 12 A by making antenna 19f shown in Figure 10.In addition, move to X-direction by the antenna 19f that makes Figure 10, resemble and the input impedance of antenna 19f can be adjusted to solid line R from dotted line K, L Figure 12 A, and, X-axis, the length lambda 2 of Y-axis, the λ 1 of antenna 19f by adjusting Figure 11 resemble and the input impedance of antenna 19f can be adjusted to solid line Q from dotted line M, N, P Figure 12 C.By using such design tactics, on the round a of Figure 12 of expression desirable voltage standing wave ratio VSWR (Voltage Standing Wave Ratio) value, can make the impedance of antenna 19f roughly overlapping, and can become broadband desirable VSWR value.In addition, be certain, by this Antenna Design skill, can carry out the broad in band design of Fig. 4, Fig. 5, Fig. 7, Fig. 8 and antenna shown in Figure 9.In other words, the capacitance by between change antenna electrode 19 and the signal electrode 21 as Figure 12 A, can change the input impedance of antenna, by the position of change supply line 21, as Figure 12 B, can change the input impedance of antenna again.
Figure 13 A, Figure 13 B represent other example of the present invention.In Figure 13 A, the 1st main body 18a is configured in the periphery of the 2nd main body 18b, the top position of the 2nd main body 18b gets high with respect to the top set positions of the 1st main body 18a, on the 1st main body 18a and the surface portion of the 2nd main body 18b, antenna electrode 19 is set at position part of top more on than the 1st main body 18a, and grounding electrode 20 is set at the lower part of the 1st main body 18a and the 2nd main body 18b.
In addition, different with electrical length on the Y-axis as the X-axis of the antenna shown in Figure 13 A, the top peripheral shape of the 1st main body 18a becomes elliptical shape.But, aspect elliptical shape, there be not big meaning, even with the different such formations of electrical length, for example make above the 1st main body 18a step discrepancy in elevation above the 2nd main body 18b different formation and the peripheral shape of the 2nd main body 18a is set at rectangle and ellipse is also no problem on X-axis and Y-axis.
By taking such antenna to constitute, just can be with the shape set of antenna electrode 19 for to be provided with the shape of protuberance at middle body, and can be bigger than part in addition between the grounding electrode 20 of the middle body of antenna electrode 19 and the antenna electrode 19.Can increase the characteristic impedance of the middle body of antenna electrode 19, and make antenna electrode 19 miniaturizations become possibility according to the principle of the resonator of SIR structure.
In addition, if select the basis material of the 1st main body 18a and the 2nd main body 18b so that make the relative permeability of basis material of the 1st main body 18a littler divided by the value of relative dielectric constant than the permeability mutually of the basis material of the 2nd main body 18b divided by the value of relative dielectric constant, the characteristic impedance that so just can make the 1st main body 18a reduces than the characteristic impedance of the 2nd main body 18b.More can make antenna electrode 19 miniaturizations.
Especially, such shown in Figure 13 B, because by X-axis on the 1st main body 18a and the electrical length on the Y-axis are set at λ/8, X-axis on the 2nd main body 18b and the electrical length on the Y-axis are set at λ/4, λ/2 resonators that constitute as the most small-sized SIR are specifically changed, and it is the most small-sized therefore antenna electrode 19 to be constituted.
The antenna of Figure 14 A～Figure 14 B be exactly the 1st main body 18a of the antenna that will in Figure 13 A～Figure 13 B, illustrate and the outer peripheral portion shape set of the 2nd main body 18b be diamond shape.Therefore, with the identical effect that can access miniaturization of antenna of Figure 13 A～Figure 13 B.
The antenna of Figure 15 A～Figure 15 B is exactly that middle body at the antenna electrode 19 shown in Figure 13 A～Figure 13 B is not provided with protuberance and at the middle body of grounding electrode 20 protuberance is set.The identical effect that can access miniaturization of antenna with Figure 13 A～Figure 13 B.In addition, the erection space to the high-frequency circuit substrate is reduced, and can seek the miniaturization of communication equipment.
Figure 16 A～Figure 16 B represents other example of the present invention.The antenna of Figure 16 A～Figure 16 B is exactly below the main body 18 of cylindrical shape grounding electrode 20 to be set, with face that it is oppositely arranged on be provided with and have the antenna electrode 19 that X-axis is become 4 slits 22 that are formed on the position of line symmetry with Y-axis, at the intersection point of X-axis and Y-axis, on the straight lines that respectively X-axis and Y-axis had 45 degree, be provided with signal electrode 21.The upper shape of main body 18 is circular, and its circular diameter is λ/2 on electrical length.On X-axis and Y-axis, at 1/8 point from each wavelength of the end of antenna electrode 19,4 line segment 24a of connection and X-axis and Y-axis quadrature and 2 limits of outer peripheral portion in slit 22 simultaneously, become for gap length 23a and make gap length 23b such seam shape that narrows down.
Has such slit 22 by antenna electrode 19, the variation (the especially variation from the peripheral part of antenna electrode 19 to the line width of the point of λ/8) of line width of the X-axis periphery of antenna electrode 19 is diminished than the variation of the line width of Y-axis periphery, this result, relatively the variation quantitative change of the characteristic impedance on the Y-axis is big with the variable quantity of characteristic impedance on the X-axis, according to the principle of SIR resonator (stepped impedance resonator), can make the electrical length on the Y-axis set greatly with the short compression ratio comparison of electrical length on the X-axis.
Like this,, can adjust the resonance frequency of the resonance current on X-axis and the Y-axis, in addition, narrow down, can seek the miniaturization of antenna by making slit 23a and 23b by the change seam shape.
The antenna of Figure 17 A～Figure 17 B is that the shape set when the antenna electrode 19 of the antenna that will illustrate in Figure 16 A～Figure 16 B is the antenna of foursquare occasion.In addition, be to cooperate the formation position of having changed slit 22 at the antenna shown in Figure 17 A～Figure 17 B with the equipping position of signal electrode 21, obtain the identical effect of antenna with Figure 16 A～Figure 16 B.
Antenna shown in Figure 18 A～Figure 18 B is in the antenna electrode 19 of the antenna shown in Figure 13 A～Figure 13 B, is formed on the antenna in the slit 22 that illustrates among Figure 16 A～Figure 16 B.The protuberance size of the middle body of selected, the antenna electrode 19 by the basis material that uses in the 1st main body 18a and the 2nd main body 18b and many design parameters such as shape in slit 22 can change, adjust the impedance of antenna, in addition, aspect the miniaturization of seeking antenna, can expect big effect.
The antenna of Figure 19 A～Figure 19 B is provided with grounding electrode 20 below the main body 18 of elliptical shape, antenna electrode 19 is set on be oppositely arranged with it, and when the minor axis of antenna electrode 19 and major axis are set at X-axis and Y-axis respectively, at the intersection point of X-axis and Y-axis, on the straight line of the angles that X-axis and Y-axis had 45 degree, hackling (comb-shaped) shape signal electrode 26 is set.Suppose the formation that central signal electrode 25 is set at the intersection point of X-axis and Y-axis again.An end of central signal electrode 25 was connected to antenna electrode 19 on circuit when, the substantial middle that its other end passes main body 18 partly arrived the face that grounding electrode 20 is set up.Therefore, the non-electrode part 27 of grounding electrode partly is set, and constitutes and make central signal electrode 25 and grounding electrode 20 not have direct conducting in the substantial middle of grounding electrode 20.
If adopt such formation, take to isolate 2 independently signal electrodes so just can be set in 1 antenna.Originally, owing to the antenna of 2 necessity can be become 1, therefore can seek cost degradation, the miniaturization of communication equipment.In addition, because antenna self can have division function, therefore there is no need to use under antenna is necessary resonator, can realize miniaturization, lightweight, the cost degradation of communication equipment.
In addition, when making the different occasion of in signal electrode 21 and central signal electrode 25, using of frequency, especially be provided in signal electrode 21 under filter or the frequency band beyond the passband of match circuit in have the service band of central signal electrode 25, when be provided in signal electrode 21 under filter or the frequency band beyond the passband of match circuit in have the occasion of the service band of central signal electrode 25, can make the separation number between signal electrode 21 and the central signal electrode 25 become big, occasion when the function that has resonator in antenna becomes effective measures.
Figure 20 A～Figure 20 D represents to relate to an example of the specific equipment of antenna of the present invention.With stacked 4 of the ceramic wafer before firing, by firing antenna is specialized after the punching press.
At the antenna electrode 19 of the 1st layer of formation diamond shape above the ceramic 27a, central signal electrode 25 is made of via hole near its 2 intersection of diagonal.In addition, at 2 intersection of diagonal places of antenna electrode 19, have with these 2 diagonal angles be that signal electrode 21a is set at the end face part of the 1st layer of ceramic 27a on the straight line of angles of 45 degree.
Pottery by stacked each layer of difference, on circuit, the end portion of signal electrode 21a be connected with the upper part of the signal electrode 21b of the end face part that is set at the 2nd layer of ceramic 27b, the end portion of signal electrode 21b is connected with the upper part of the signal electrode 21c of the end face part that is set at the 3rd layer of ceramic 27c, and the end portion of signal electrode 21c is connected with the upper part of the signal electrode 21d of the end face part that is set at the 4th layer of ceramic 27d.
The end portion of central signal electrode 25 is connected with capacitor overlying electrode 28a above the substantial middle part that is set at the 2nd layer of ceramic 27b on circuit, is provided with capacitor lower electrodes 28b in the 3rd layer of position above the ceramic 27c that is oppositely arranged with capacitor overlying electrode 28a.On the substantial middle part of the 4th layer of ceramic 27d, form inductor 29, be connected on circuit by via hole at an end and the capacitor lower electrodes 28b of inductor 29 by the conductivity circuit.
In addition, the other end of inductor 29 on circuit, be connected to and be set at by via hole the 4th layer below the ceramic 27d grounding electrode 20 insulation and the end of the central signal electrode 25a that forms, and be connected to the central signal electrode 25b that on one side end face of the 4th layer of ceramic 27d, is formed on the circuit.
If adopt such formation, just can make that the match circuit as necessity forms in the inside of antenna under central signal electrode 25.Make the erection space of the match circuit that reduces the on-chip antenna of high-frequency circuit become possibility.
Figure 21 A～Figure 21 H represents other example of the present invention.Main body 18 is made of dielectric, and antenna electrode 19 is set in the above.Select the shape of antenna electrode 19 so as to make X-axis and Y-axis on the electrical length of antenna electrode 19 inequality.Signal electrode 21 via with 19 arbitrary intervals of antenna electrode, on the straight line of the angles that X-axis and Y-axis had 45 degree, be configured in the end face part of main body 18.And, the end portion of signal electrode 21 is connected with signal electrode 21a below the main body 18 on circuit, simultaneously, signal electrode 21a is set at and is set at the non-electrode part 31a that grounding electrode 20 in the following part of main body 18 becomes the grounding electrode of state of insulation.In addition, middle body is provided with recess below main body 18, and the non-electrode part 31b of grounding electrode is set at the inside part of recess again.
When the occasion that such antenna is installed in high-frequency circuit substrate 30, the top high-frequency circuit part 32 that is installed in high-frequency circuit substrate 30 can be installed so that be housed in the following recess of main body 18, and can overcome the problem of the big erection space that needs tabular contrary F shape antenna.In addition, by being set at the following recess of main body 18, constitute the dummy section part between interarea 30b below being set at high-frequency circuit substrate 30 and the antenna electrode 19.About the characteristic impedance between antenna electrode 19 and the interarea 30b, owing to can make the middle body of antenna electrode 19 become big, peripheral part is diminished, therefore also can realize the miniaturization of antenna.In addition, symbol 30a is a grounding electrode.
In addition, the following recess of wishing main body 18 on X-axis and Y-axis from from the long lower position formation that is oppositely arranged for the position of λ/8 of the peripheral part electricity of antenna electrode 19.By forming, be because can make antenna constitute the most small-sized reason from such position.
Figure 22 A～Figure 22 H represents other example of the present invention.Main body 18 is made of dielectric, and rectangular antenna electrode 19 is set in the above.1 angle part signalization electrode 21 at the periphery of antenna electrode 19.In addition, on the intersection point of the X-axis Y-axis of antenna electrode 19, central signal electrode 25 is set.Middle body is provided with recess below main body 18, and the end portion of central signal electrode 25 passes to the inboard of this recess.In addition,, simultaneously, form central signal electrode 25, connect at the central signal electrode 25a that on the face that the recess below main body 18 is not set up, is formed on the circuit at the installed inside high-frequency circuit part 32b of this recess.In addition, this central signal electrode 25a is set at the inboard of the non-electrode part 20b of grounding electrode, so that formed grounding electrode 20 insulation on roughly whole of the face that is not set up with recess below main body 18.And, central signal electrode 25a on circuit be connected high-frequency circuit substrate 30 in the transmission line of formed high-frequency circuit be connected, simultaneously, the high-frequency circuit part 32a such as match circuit of high-frequency circuit substrate 30 mounted antennas of the covering of the recess below using main body 18.
Like this, if constitute antenna, so in the erection space that reduces to have the antenna of taking 2 signal electrodes of isolating, the dummy section that forms by the following recess by main body 18 partly also can be sought the miniaturization of antenna.
The antenna of Figure 23 A～Figure 23 H is expression has realized the occasion of central signal electrode 25 of the antenna that illustrated among Figure 22 A～Figure 22 H in front by conductivity lead-in wire 33 when, expression makes signal electrode 21 move to inside from the peripheral end face of main body 18, and the occasion that realizes with via hole.With such formation antenna of the present invention is specialized, also can be obtained and the roughly the same effect of antenna shown in Figure 21 A～Figure 21 H and Figure 22 A～Figure 22 H.
Antenna shown in Figure 24 A～Figure 24 H is represented the occasion that the signal electrode 21 of the antenna shown in front Figure 21 A～Figure 21 H specialized by the formed signal electrode 21E in the inside of the recess of middle body below being set at main body 18.In such formation, constitute antenna, the roughly the same effect of antenna that also can obtain Yu in Figure 21 A～Figure 21 H, illustrate.
Antenna shown in Figure 25 A～Figure 25 H is represented other example of the present invention.This antenna possesses the rectangular antenna electrode 19 that is formed by electric conducting material on the main body 18 that is made of dielectric substance smooth.Middle body in the bottom surface of main body 18 forms the 1st recess 34.In addition, wish on X-axis and Y-axis peripheral part from antenna electrode 19, from electrical length be that the lower position of the main body 18 that is oppositely arranged of the position of λ/8 forms.In addition, different with the 1st recess 34,4 the 2nd recesses 35 peripheral part below main body 18 is set at the position that X-axis and Y-axis is become the line symmetry.
In addition, below main body 18, beyond the inside of the 1st recess 34 and the 2nd recess 35, grounding electrode 20 is set, at the inside of the 2nd recess 35 signalization electrode 21, and by with the capacitive coupling of antenna electrode 19, and antenna electrode 19 between carry out high-frequency signal transmission receive.In this occasion because high-frequency signal mainly flows through on X-axis and Y direction, therefore be set at X-axis and Y-axis on the miniaturization of 35 pairs of antennas of the 2nd recess of different position do not bring bad influence.By setting such formation, more can reduce the erection space on the necessary high-frequency circuit substrate 30 in antenna, and can seek the miniaturization of electronic equipment.
Antenna shown in Figure 26 A～Figure 26 H is represented other example of the present invention.This antenna possesses the rectangular antenna electrode 19 that is formed by electric conducting material on the main body 18 that is made of dielectric substance smooth.Middle body forms protuberance below main body 18.In addition, wish on X-axis and Y, from the peripheral part of antenna electrode 19, from electrical length be that the lower position of the main body 18 that is oppositely arranged of the position of λ/8 forms.Set grounding electrode 20 on roughly whole below main body 18.In addition, in the part of grounding electrode 20, be provided with the non-electrode part 36 of grounding electrode, there, with grounding electrode 20 contactless states under, signalization electrode 21, the upper part of signal electrode 21 is connected to antenna electrode 19 on circuit.
By setting such formation, the interval of antenna electrode 19 and grounding electrode 20 can be adopted the middle body of antenna electrode 19 significantly.Can make near the characteristic impedance of middle body of antenna electrode 19 become big, and seek the miniaturization of antenna according to the principle of SIR resonator.And just the following protuberance of main body 18 is installed in the high-frequency circuit substrate 30, in zone in addition, because high-frequency circuit part 32 can be installed, therefore can seek the miniaturization of electronic equipment.
The central authorities of the protuberance below the main body 18 of the antenna that the antenna shown in Figure 27 A～Figure 27 H should illustrate in being formed on Figure 26 A～Figure 26 H of front form recess.In addition, in the inboard of recess grounding electrode 20 is not set.By appending such recess, can between interarea 30b in being set at high-frequency circuit substrate 30 and antenna electrode 19, constitute dummy section.Owing to can make near the impedance operator of middle body of antenna electrode 19 become big more, therefore can further advance the miniaturization of antenna, simultaneously, owing to also high-frequency circuit part 32 can be installed at the upper zone of the high-frequency circuit substrate 30 that is covered by this recess, therefore can seek the miniaturization of communication equipment.
Antenna shown in Figure 28 A～Figure 28 H is represented other example of the present invention.This antenna sets rectangular antenna electrode 19 on constitute main body 18 smooth with the magnetic material, the middle body below main body 18 is provided with protuberance.At this protuberance, in high-frequency circuit substrate 30, when installing, on roughly whole on be connected to high-frequency circuit substrate 30 grounding electrode 20 is set, the zone of the grounding electrode 20 below main body 18 is not set sets signal electrode 21, simultaneously, the side via main body 18 is connected to antenna electrode 19 on circuit.
By setting such formation, about the zone between high-frequency circuit substrate 30 and the antenna electrode 19, the magnetic of the middle body of the middle body of antenna electrode 19 a fill antenna electrode 19, but owing to constitute by air and magnetic by the peripheral part of antenna electrode 19, the characteristic impedance of the peripheral part of the characteristic impedance ratio antenna electrode 19 of the middle body of antenna electrode 19 can design greatly, therefore can make antenna miniaturization.In addition, aspect in high-frequency circuit substrate 30, installing, because the part that is connected with high-frequency circuit substrate 30 is the following protuberance of main body 18, therefore can reduce erection space to high-frequency circuit substrate 30, simultaneously, in the part of high-frequency circuit substrate 30, high-frequency circuit part 32 can be installed, and can advance the miniaturization of communication equipment.
Expression other example of the present invention in Figure 29.The antenna of Figure 29 should promptly, constitute radiant panel 101 by conductor plate by constituting with the lower part; The top mainboard 102 of the high frequency substrate 104 that is oppositely arranged with it; And, on the straight line of angles, be set at the conductor 103 of power supply usefulness of the end of radiant panel 101 with 45 degree at the intersection point place of the X-axis and the Y-axis of radiant panel 101.Produce resonance current on the X-axis of radiant panel 101 and Y-axis, the resonance frequency of each resonance current can be controlled by X-axis and the electrical length on the Y-axis at radiant panel 101, and electrical length separately is designed to the roughly half-wavelength of resonance frequency separately.Occasion at this example, by the angle part on the X-axis that eliminates radiant panel 101, intermediate frequency place at resonance frequency α on the X-axis and the resonance frequency β on the Y-axis, make phase shifting 90 degree of the phase place of the resonance current on the X-axis and the resonance current on the Y-axis, and allow action as the circularly polarised wave of 1 power supply type.In addition, self-evident, the antenna shown in this example only can use as the antenna with 2 frequency actions.
1 power supply type circular polarized wave antenna is before this taked Antenna Impedance Matching usually by the installation site of the conductor 103 of adjustment power supply usefulness, and therefore, usually, the installation site of the conductor 103 of power supply usefulness is not the end of reflecting plate 101, but becomes the inboard.In contrast, the antenna of this example is characterized in that, the conductor 103 of power supply usefulness is arranged on the end of radiant panel 101.Therefore,, form the part of the conductor 103 of power supply usefulness, just can make antenna, and can make the few antenna of cheapness and characteristic discrete discrepancy specific with punch process only with smooth conductor plate perforation processing.
As described above, the antenna shown in this example owing to do not take Antenna Impedance Matching by the link position of conductor of power supply usefulness, therefore shown in Figure 30 A like that, antenna feed impedance is big from 50 Ω skew.Therefore, match circuit 105 be connected to and the junction block 106 of the power supply usefulness of connected grounding electrode 102 insulation of end portion of the conductor 103 of the usefulness of powering on, therefore the input impedance of antenna can be adjusted to 50 Ω like that shown in Figure 31 A, and can take with via antenna and supply line's 107 connected high-frequency circuits couplings.
Radiation characteristic curve and axial ratio characteristic before the expression match circuit connects among Figure 30 B～Figure 30 C, radiation characteristic curve and axial ratio characteristic after the expression match circuit connects among Figure 31 B～Figure 31 C.These characteristics and match circuit have or not that it doesn't matter, hint radiation characteristic curve and axial ratio characteristic be change not.
Figure 32 A～Figure 32 B represents other example of the present invention.Antenna shown in Figure 32 A～Figure 32 B is such antenna, promptly, with respect to antenna shown in Figure 29, the end limit middle body that is oppositely arranged on the end limit of radiant panel 101 with the conductor 103 that is provided with power supply usefulness is provided with the fixedly conductor 108 of usefulness, with the state of mainboard 102 insulation under fixedly the lower end of the conductor 108 of usefulness be fixed on the junction block 109 that is set at the fixedly usefulness above the high frequency substrate 104, in addition, the match circuit 105 of end portion that is connected to the conductor 103 of power supply usefulness is set at the back side of high frequency substrate 104 via via hole 37.
Why be provided with the fixing conductor 108 of usefulness and be because make stable distance between radiant panel 101 and the mainboard 102, keep certain value, under stable status, keep the reason of antenna performance.In addition, resonance current on the reflecting plate 101 is considered exactly owing to mainly produce on X-axis and Y-axis, therefore be set at the position different by the fixing link position of the conductor 108 of usefulness with X-axis and Y-axis, big electric current is flow through, so that radiation characteristic curve and axial ratio characteristic are not worsened in the conductor 108 of fixing usefulness.
In addition, why match circuit 105 is configured in the back side of high frequency substrate 104, be because in the occasion on the surface that match circuit 105 is configured in the high frequency substrate 104 that radiant panel 101 set, if the signal frequency of being powered by antenna uprises, also form radiation of power from match circuit and the on-chip supply line of high frequency so, make the reason of axial ratio characteristic degradation thus.
The radiation characteristic curve of the antenna of presentation graphs 32A～Figure 32 B in Figure 33 A, in addition, expression axial ratio characteristic in Figure 33 B.If with the radiation characteristic curve shown in Figure 31 B～Figure 31 C and axial ratio characteristic relatively, never find big characteristic variations this point, the influence that can grasp being provided with the fixing radiation characteristic of the conductor 108 of usefulness is few.But, the gap that is set up if be used to make the junction block 109 of fixing usefulness and mainboard 102 to insulate is narrow significantly, between the junction block 109 of fixing usefulness and mainboard 102, will produce drift electric capacity so, when high frequency, become the conductor 108 that is equivalent to fixing usefulness and be connected with mainboard 102 via drift electric capacity.Therefore, have big resonance current to flow through in the conductor 108 of fixing usefulness, the radiation characteristic curve changes, and radiation gain will worsen widely.
This situation of expression in Figure 38 A.From this figure as can be known, the gain of zenith (zenith) direction worsens widely, and it is big that the radiation gain of horizontal direction becomes.This is to be considered to that the radiation of power of the resonance current of the conductor 108 of usefulness becomes main flow from flowing through fixedly, to becoming big with the meet at right angles radiation gain of direction (horizontal direction among the figure) of the fixing axle of the conductor 108 of usefulness.For preventing it, by between the junction block 109 of fixing usefulness and mainboard 102, inserting inductor (for frequency of utilization, be chosen in and the inductor value of the resonance between the electric capacity of drifting about), the generation of electric capacity of drifting about can be prevented for frequency of utilization, and the deterioration of radiation gain can be suppressed.The inductor that inserts can be a chip inductor, also can make by the substrate model.This situation of expression in Figure 38 B.The radiation gain that can understand zenith direction from this figure has become main flow.
Expression other example of the present invention in Figure 34 A～Figure 34 B.The antenna of Figure 34 A～Figure 34 B is exactly to possess 2 fixedly conductors 108 of usefulness in Figure 32 A～Figure 32 B again.By taking such formation, more can make the distance between radiant panel 101 and the mainboard 102 keep certain, adding under the environment of vibration, can seek the stabilisation of antenna performance.
Each fixedly the conductor 108 of usefulness be configured in respectively with X-axis that produces resonance current and Y-axis on different positions, and consider in the conductor 108 of separately fixedly usefulness and make resonance current be difficult to flow through.In Figure 35 A, the radiation characteristic curve that table should not antenna, expression axial ratio characteristic in Figure 35 B.From the radiation characteristic curve shown in Figure 35 A as can be known, the radiation characteristic curve for Figure 31 B does not have big difference.In addition, people know, can be implemented in the right-handed circular polarization wave antenna that zenith direction has maximum gain 8dBi.But the low-limit frequency of Figure 35 B hint axial ratio is passed to the low direction of 750MHz left and right sides frequency.This is because due to the influence of a part of resonance current in the conductor 108 of the fixing usefulness of flowing through.Therefore, can realize the antenna that frequency of utilization is low with the size of identical radiant panel 101, the result can make the size of radiant panel 101 become small-sized.
Figure 36 A～Figure 36 B represents other example of the present invention.The antenna of Figure 36 A is exactly by processing slit 122 on radiant panel 101, and the shape of dependence radiant panel 101 is taked the impedance matching of antenna, as if offhand match circuit, also can realize the antenna of high-gain.
In addition, the antenna of Figure 36 B is exactly the antenna for Figure 29, and at the intersection point of X-axis and Y-axis, the arbitrary region that comprises the radiant panel 101 1 end ends on the straight line with miter angle degree to bending, is set at the part of the conductor 103 of power supply usefulness to vertical lower.Can access and make to the link position of the radiant panel 101 of the conductor 103 of power supply usefulness, and obtain the coupling of antenna feed impedance easily in fact to the identical effect of the medial movement of radiant panel 101.
In addition, for the interval that makes radiant panel 101 and mainboard 102 keeps certain easily, be set at the end portion of the conductor 103 of power supply usefulness trapezoidal.
Therefore, adding under the environment of vibration, also can realize stable antenna performance.In addition,, also can make through perforation processing and punch process, and can realize the antenna of the low and stability of characteristics of cost from 1 conductor plate about the antenna of this example.
Figure 37 illustrates the manufacture method that relates to antenna of the present invention extremely briefly.By smooth conductor plate perforation processing is become desirable shape, make the conductor of power supply usefulness and fixedly the coupling part of the conductor of usefulness and radiant panel is vertically crooked with punch process, antenna is specialized.
Expression other example of the present invention in Figure 39.The antenna of Figure 39 be exactly on be set at high frequency substrate 104 mainboard 102 above the configuration radiant panel 101, its end is at the junction block 106 that is connected to the formed power supply usefulness in end on mainboard 102 on the circuit, and its other end has disposed the conductor 103 of the power supply usefulness of the end that is connected to radiant panel 101 on circuit.Corner portions located on the X-axis of radiant panel 101 is formed for making the different notch portion 110 of electrical length of X-axis and Y-axis, simultaneously, resembles and sets radiant panel 101 side of slit configuration part 110 above the corner portions located of mainboard 102.
The size that is illustrated in radiant panel 101 in Figure 40 C is set at 24mm * 24mm, the interval of mainboard 102 and radiant panel 101 is set at 4mm, the axial ratio characteristic and the radiation characteristic of occasion when having adjusted the size of notch portion 110, that this antenna moves as circular polarized wave antenna.In addition, in Figure 40 A～Figure 40 B and Figure 40 D respectively expression make the axial ratio characteristic and the radiation characteristic of the occasion that the equipping position of the radiant panel 101 on the mainboard 102 changes.
Become minimum frequency ratio occasion in axial ratio with each aerial position, as 40B～Figure 40 C, the occasion that is configured in the top of mainboard 102 with notch portion 110 compares, the occasion frequency gets higher that is configured as can be known, therefore, be configured in the top of mainboard 102 by notch portion 110, the antenna that can will move as circularly polarised wave in desirable frequency is designed to small-sized.In addition, the occasion that is not configured in the top of mainboard 102 with notch portion 110 compares, and in the occasion that is configured, can make the radiation characteristic curve of XY face and YZ face consistent, and the distortion of coverage diagram is little, is implemented in the antenna that zenith direction has maximum gain.
In addition, between radiant panel 101 and mainboard 102, can be air, also can filling dielectric and magnetic.In addition, in Figure 39, do not illustrate, but by at passive component such as the match circuit of the face mounted antennas of high frequency substrate 104 and filter and active element etc., make antenna and high-frequency circuit integrally, also can seek to be reduced in the power loss in the supply line's part between antenna and the high-frequency circuit.
Expression other example of the present invention in 41A～Figure 41 B.The antenna of Figure 41 A is exactly to have disposed radiant panel 101a and 101b on mainboard 102.By the size of adjusting notch portion 110 radiant panel 101a is being set at the right-handed circular polarization ripple, the occasion that radiant panel 101b is set at the left-hand circular polarization ripple and makes it to move again, the enough dextrorotation of energy separates with left-handed circularly polarised wave and receives the signal that arrives from the top of mainboard 102, and can reduce the generation of multipath decay.
Relative therewith, the antenna of Figure 41 B is represented by adjusting the size of notch portion 110, the occasion that radiant panel 101c and radiant panel 101d are made it to move as the left-hand circular polarization ripple, can constitute the space diversity formula antenna of left-hand circular polarization wave antenna, the deterioration that under multipath decay environment, can seek to alleviate communication quality.In addition, the side's of radiant panel 101a-101d notch portion 110 is configured near the top of corner portions located of mainboard 102, therefore, can make 2 radiant panel 101 miniaturizations.
Be illustrated in the antenna formation that the number of radiant panel is become the occasion of 4 (101a-101d) in Figure 42, the formation of such antenna can be with the diversity antenna and the small-sized realization of array antenna of 4 branches.
Expression other example of the present invention in Figure 43 C, Figure 43 E and Figure 43 F.The antenna of Figure 43 A～Figure 43 F is exactly that expression has been changed notch portion 110 and the variation of the radiation characteristic of the occasion of the position of the conductor 103 of the usefulness of powering when the above and below at mainboard 102 has disposed radiant panel 101a, 101b respectively.As everybody knows, in Figure 43 A～Figure 43 F, especially Figure 43 C, Figure 43 E～Figure 43 F and other forms compare, and the gain height is 6dBi, in addition, about the radiation characteristic curve, can realize the radiation characteristic curve of symmetry for the Z axle.
Therefore,, the angle diversity formula antenna of high-gain can be realized having with the below up, under multipath decay environment, also high communication quality can be kept for mainboard 102 by the formation of antenna of the present invention.In addition, Figure 43 has put down in writing about with radiant panel 101a, the 101b occasion as circular polarized wave antenna design, but we can say it also is identical in the occasion as the Antenna Design of line polarization wave or elliptically polarised wave.
In Figure 44 A～Figure 43 C expression be set at mainboard 102 the above and below power supply usefulness conductor 103 equipping position up, below the radiation characteristic of different occasion, but can not realize maximum gain 6dBi with the below up, in addition, maximum gain direction tilts from Z-direction, has the tendency of radiation characteristic curvilinear distortion.Therefore, for the mainboard as the antenna of one embodiment of the present of invention of putting down in writing in Figure 43 C, Figure 43 E-Figure 43 F, the conductor that is configured in the power supply usefulness of above and below is configured in roughly same position with the below up.
Antenna shown in Figure 45 is exactly in the antenna of Figure 43 E the number of radiant panel to be increased to 4 (101a-101d), therefore, the angle diversity formula antenna that can make the signal that the above and below from antenna is arrived can be divided into right-handed circular polarization ripple and the reception of left-hand circular polarization ripple is respectively specialized, and can guarantee the excellent communications quality under multipath decay environment.
Be exactly to represent other example of the present invention in Figure 46 A-Figure 46 B, and the image receiving device 113 that relates to antenna of the present invention has been loaded in expression.In having disposed, the top of loudspeaker enclosure 112 adorns the antenna element 111 of antenna of the present invention, and have a such mechanism of direction that can change antenna element 111, so that to the electric wave environment that position etc. changes being set can realizing best communication characteristic by image receiving device 113.Therefore, the maximum gain direction that antenna of the present invention is had is consistent with arrival bearing, and can improve incoming level.The direction adjustment of antenna element 111, for example, can show with the signal incoming level that manually carries out on image receiving device, being shown with reference to ground, also detecting circuit can be set under antenna, monitor the received power of antenna, and according to its result with the direction of software controlled antenna element 111.
Antenna of the present invention possesses with antenna and is oppositely arranged the grounding electrode that is set up like that, antenna electrode should make X-axis, and with its quadrature or roughly the length of the Y-axis of quadrature is inequality, except that the length difference of the X-axis that in antenna electrode, makes it, Y-axis, also utilize by 1 antenna to have 2 resonance characteristics, and can constitute wide band antenna with these resonance characteristics are synthetic.
In addition, antenna of the present invention is the antenna that constitutes like this, it possesses the mainboard of being made up of conductor plate, and the radiant panel of forming by the conductor plate that is oppositely arranged with this mainboard, this radiant panel make X-axis and and with its quadrature or roughly the length of the Y-axis of quadrature is inequality, and, on electrical length, roughly be to use the half-wavelength of frequency.Antenna of the present invention also has the conductor of power supply usefulness, the conductor of this power supply usefulness possesses the X-axis that is provided with radiant panel and the grounding electrode of Y-axis, described antenna electrode will X-axis and with its quadrature or the intersection point place of the Y-axis of quadrature roughly, resemble described radiant panel roughly had at the conductor that has the power supply usefulness that the end of the radiant panel on the straight line of the angles of 45 degree roughly is set up with diaxon and be bent downwardly the angles of 90 degree.
Therefore, by perforation processing or etching and processing the conductor plate of flat shape is processed into suitable shape, make the conductor part bending energy of power supply usefulness realize antenna with punch process etc.,, therefore can realize cheapness, high-quality antenna owing to can make the manufacture method summary of antenna.
In addition, the equipping position of antenna of the present invention by mainboard being made radiant panel and the equipping position optimization of the conductor of power supply usefulness can realize the high radiation gain and the miniaturization of antenna.
In addition, electronic equipment of the present invention should possess circuit substrate, with the lip-deep antenna that is installed in this circuit substrate, shown in antenna possess main body with planar section, be arranged on the antenna electrode of the planar section of this main body, and be arranged on grounding electrode in the main part that is oppositely arranged with this antenna electrode, described antenna electrode be set at make X-axis with this X-axis quadrature or the different structure of length of the Y-axis of quadrature roughly, described circuit substrate also has signal electrode, this signal electrode with the grounding electrode that is arranged on described antenna on the non-electrode part of grounding electrode divide under the state of relative setting, at the surperficial mounted antennas of circuit substrate.
Because the position of the non-electrode part of the grounding electrode that is oppositely arranged of signal electrode by the change circuit substrate, the impedance of control antenna freely is therefore with easy method designing antenna in broadband of the installation site of change antenna.
The electronic equipment that relates to antenna of the present invention and use it utilizes to have 2 resonance characteristics by 1 antenna, and has the synthetic effect of making wide band antenna of these resonance characteristics, as antenna and to use its electronic equipment be useful.
Claims (52)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101025347A CN1497779A (en) | 2002-10-22 | 2003-10-22 | Antenna and electronic device using the same |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002306928 | 2002-10-22 | ||
| JP200321816 | 2003-01-30 | ||
| JP2003147245 | 2003-05-26 | ||
| JP2003308542 | 2003-09-01 | ||
| CNA2003101025347A CN1497779A (en) | 2002-10-22 | 2003-10-22 | Antenna and electronic device using the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710101159.2A Division CN101047281A (en) | 2002-10-22 | 2003-10-22 | Antenna and electronic equipment using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1497779A true CN1497779A (en) | 2004-05-19 |
Family
ID=34256731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101025347A Pending CN1497779A (en) | 2002-10-22 | 2003-10-22 | Antenna and electronic device using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1497779A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101878561A (en) * | 2007-11-30 | 2010-11-03 | 三菱电线工业株式会社 | Antenna device |
| CN101656350B (en) * | 2008-08-20 | 2013-01-09 | 华硕电脑股份有限公司 | Flat panel antenna and wireless communication device |
| CN103050766A (en) * | 2011-10-14 | 2013-04-17 | 深圳富泰宏精密工业有限公司 | Antenna module and wireless communication device provided with same |
| CN104716422A (en) * | 2013-12-12 | 2015-06-17 | 深圳光启创新技术有限公司 | Circularly polarized antenna, antenna system and communication device |
| CN113764864A (en) * | 2020-06-01 | 2021-12-07 | 千寻位置网络有限公司 | Electronic device comprising an antenna arrangement |
-
2003
- 2003-10-22 CN CNA2003101025347A patent/CN1497779A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101878561A (en) * | 2007-11-30 | 2010-11-03 | 三菱电线工业株式会社 | Antenna device |
| CN101656350B (en) * | 2008-08-20 | 2013-01-09 | 华硕电脑股份有限公司 | Flat panel antenna and wireless communication device |
| CN103050766A (en) * | 2011-10-14 | 2013-04-17 | 深圳富泰宏精密工业有限公司 | Antenna module and wireless communication device provided with same |
| CN103050766B (en) * | 2011-10-14 | 2017-08-22 | 深圳富泰宏精密工业有限公司 | Antenna modules and the radio communication device with the antenna modules |
| CN104716422A (en) * | 2013-12-12 | 2015-06-17 | 深圳光启创新技术有限公司 | Circularly polarized antenna, antenna system and communication device |
| CN113764864A (en) * | 2020-06-01 | 2021-12-07 | 千寻位置网络有限公司 | Electronic device comprising an antenna arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220255238A1 (en) | Antenna module and electronic device | |
| CN1200584C (en) | Reverse F-type antenna device and portable wireless communicating device | |
| CN102598410B (en) | Omni-directional multi-band antenna | |
| CN1579036A (en) | Antenna device | |
| CN1213514C (en) | Antenna | |
| CN1778014A (en) | Frequency-variable antenna and communication device having the same | |
| CN1655398A (en) | Loop antenna and radio communication device having the same | |
| CN1519981A (en) | ELectronic appts. and printed circuit board for mounting antenna | |
| CN1163495A (en) | Antennas for Mobile Wireless Communications | |
| CN1266292A (en) | Antenna device | |
| CN1524319A (en) | Broadband Antennas for Mobile Communications | |
| TWI761872B (en) | Antenna for multi-broadband and multi-polarization communication | |
| CN112821050B (en) | Antenna components and electronics | |
| CN101341630B (en) | Directivity-variable antenna | |
| JP2012039599A (en) | Loop antenna | |
| US7138950B2 (en) | Antenna and electronic equipment using the same | |
| CN114024137A (en) | Multi-loop resonance structure and MIMO antenna communication system | |
| TWI779577B (en) | Antenna modules and electronic equipment | |
| CN103460505A (en) | Ground radiator using capacitor and ground antenna | |
| CN1497779A (en) | Antenna and electronic device using the same | |
| CN1706072A (en) | Antenna mounting printed-circuit board | |
| JP7534053B2 (en) | Dual polarized antenna, related antenna module and electronic device | |
| CN1586024A (en) | Antenna device | |
| CN101047281A (en) | Antenna and electronic equipment using the same | |
| CN1701467A (en) | Antenna and electronic device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |