CN201327871Y - Inverse-F-shaped antenna - Google Patents
Inverse-F-shaped antenna Download PDFInfo
- Publication number
- CN201327871Y CN201327871Y CNU2008201338513U CN200820133851U CN201327871Y CN 201327871 Y CN201327871 Y CN 201327871Y CN U2008201338513 U CNU2008201338513 U CN U2008201338513U CN 200820133851 U CN200820133851 U CN 200820133851U CN 201327871 Y CN201327871 Y CN 201327871Y
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- Prior art keywords
- feed
- coaxial line
- radiant section
- inverted
- antenna
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- Expired - Fee Related
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- 230000005855 radiation Effects 0.000 claims description 24
- 239000004020 conductor Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims description 7
- 230000010287 polarization Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
The utility model discloses an inverse-F-shaped antenna which comprises a radiant part, a feed-in part and a connecting part, wherein, the radiant part is used for receiving and sending radio frequency signals; the feed-in part extends from the radiant part and is used for transmitting the radio frequency signals; the connecting part extends from the radiant part and is connected with a grounded part; and the length of the feed-in part is about one eighth to one sixteenth of the signal wavelength of the radiant part, so as to lead the polarization direction of the antenna to approach the feed-in direction of the feed-in part. The inverse-F-shaped antenna can be widely applied to various situations needing the inverse-F-shaped antenna.
Description
Technical field
The utility model relates to a kind of inverted F shaped antenna, particularly relates to a kind of inverted F shaped antenna approximate with circumscribed dipole antenna polarization characteristic of reaching.
Background technology
Wireless signal transmits to have developed and multiple kinds and technology, the purpose of its development innovation, be nothing but to make the circuit hop of client access network be transformed into the form of wireless transmission, and make more popularization of Mobile Communications and can immanent transmission and reception information, therefore, but various now electronic product generally is provided with radio access network information and ability to communicate that the antenna of transmitting/receiving wireless signal promotes electronic product, for example: general WLAN taker (WLAN AccessPoint/Router), it uses external antenna (dipole antenna) to come the transceiver network signal, but electronic product is for can meet miniaturization and light-weighted structural design, external antenna has not been inconsistent demand, if use in the miniature antenna (for example: inverted F shaped antenna is called PIFA (Planar Inverted-FAntenna) antenna again) and be built in WLAN taker inside, to replace external antenna, but the polarization characteristic of in-building type antenna and external antenna are not simultaneously, to cause electronic apparatus system usefulness variation and produce problems such as signal transmission benefit is not good, so can reach the polarization characteristic approximate with the circumscribed dipole antenna at the in-building type antenna, real is the problem that the utmost point need overcome solution in the Antenna Design
In view of this, the creator this in manufacturing development and the design experiences of being engaged in Related product for many years, at above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicality.
The utility model content
The technical problems to be solved in the utility model provides a kind of inverted F shaped antenna, to solve existing antenna and the different problem of circumscribed dipole antenna polarization characteristic., and then solved the problem that prior art produces.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of inverted F shaped antenna comprises: radiant section, feed-in part and coupling part is characterized in that: 1/8th to ten sixths of the about radiant section signal of the length wavelength of feed-in part.
Feed-in partly can be electrical conductor and has first and second end, and wherein first end can be connected in the appropriate location of radiant section, and the second end can approach grounded part, but so that the second end electrically connect to the signal transmission terminal of electronic equipment.
Described feed-in partly can be coaxial line, and the inner wire of described coaxial line is connected in the appropriate location of radiant section, and the wire sheathing of described coaxial line is connected in grounded part.
Described feed-in partly can be electrical conductor connection coaxial line to be formed, and the inner wire of described coaxial line is connected in the second end of electrical conductor, and the wire sheathing of described coaxial line is connected in grounded part.
A kind of multifrequency antenna comprises: radiant section, have first and second radiation assembly at least, and feed-in part and coupling part is characterized in that: 1/8th to ten sixths of the about radiant section signal of the length wavelength of described feed-in part.
Description of drawings
Fig. 1 is the stereogram of the inverted F shaped antenna that provided of the utility model one preferred embodiment.
Fig. 2 is the floor map of the inverted F shaped antenna that provided of the utility model one preferred embodiment.
Fig. 3 is the floor map that the feeding portion of the inverted F shaped antenna that provided of the utility model one preferred embodiment is divided into coaxial line.
Fig. 4 is that the feeding portion of the inverted F shaped antenna that provided of the utility model one preferred embodiment is divided into the floor map that electrical conductor connects coaxial line.
Fig. 5 is the floor map of the inverted F shaped antenna that provided of another preferred embodiment of the utility model.
Fig. 6 is the schematic perspective view that the utility model inverted F shaped antenna is implemented on multifrequency antenna.
Fig. 7 is that the utility model inverted F shaped antenna is implemented on multifrequency antenna and indicates feed-in floor map partly.
Fig. 8 is that the utility model inverted F shaped antenna is implemented on multifrequency antenna and indicates the floor map of second radiation assembly.
Fig. 9 is that the utility model inverted F shaped antenna is implemented on multifrequency antenna and indicates the floor map of auxiliary radiation portion, matching part.
Figure 10 is that feeding portion that the utility model inverted F shaped antenna is implemented on multifrequency antenna is divided into electrical conductor and connects the floor map that coaxial line is formed.
The element numbers explanation:
Antenna 1 radiant section 11 feed-in parts 12
Embodiment
Below in conjunction with drawings and embodiments the utility model is described in further detail.
Consulting Fig. 1, Fig. 2, be the structural representation of the utility model inverted F shaped antenna, is the preferred embodiment of the utility model inverted F shaped antenna, and such embodiment only for the usefulness of explanation, is not subjected to the restriction of this structure in patent application; Described antenna 1 comprises: radiant section 11 is used for receiving and dispatching radio-frequency (RF) signal.Feed-in part 12 connects from this radiant section 11, is used for transmitting radio-frequency (RF) signal.And coupling part 13, extension is from this radiant section 11 and be connected in grounded part 14./ 8th to ten sixths of the about radiant section 11 signal wavelength of the length of this feed-in part 12 wherein.
Consult Fig. 2, be a kind of inverted F shaped antenna of the present utility model, wherein feed-in part 12 can be electrical conductor 120 and has first and second end 121,122, wherein first end 121 can be connected in the appropriate location of radiant section 11, the second end 122 can approach grounded part 14, but so that the second end 122 electrically connects to the signal transmission terminal (not shown) of electronic equipment.
Consult Fig. 3, be a kind of inverted F shaped antenna of the present utility model, wherein feed-in part 12 can be coaxial line 10, and the inner wire 101 of this coaxial line 10 is connected in the appropriate location of radiant section 11, and the wire sheathing 102 of this coaxial line 10 is connected in grounded part 14.
See also Fig. 4, be a kind of inverted F shaped antenna of the present utility model, wherein this feed-in part 12 can be electrical conductor 120 and connects coaxial lines 10 and form, the inner wire 101 of this coaxial line 10 is connected in the second end 122 of electrical conductor 120, and the wire sheathing 102 of this coaxial line 10 is connected in grounded part 14.
A kind of inverted F shaped antenna of the present utility model, wherein this feed-in part 12 can be at different plane spaces with radiant section 11.
See also Fig. 5, be a kind of inverted F shaped antenna of the present utility model, wherein this feed-in part 12 can be at same plane space and one-body molded with radiant section 11.
A kind of inverted F shaped antenna of the present utility model, wherein this radiant section 11 can work in 2.4～2.5GHz frequency range.
A kind of inverted F shaped antenna of the present utility model, wherein the length of this feed-in part 12 is about 1/12nd of radiant section 11 signal wavelength and is embodied as the best.
See also Fig. 6 to Fig. 8, for the utility model inverted F shaped antenna is implemented on the structural representation of multifrequency antenna, this antenna 2 comprises: radiant section 11, have first and second radiation assembly 111,112 at least, and be used for receiving and dispatching radio-frequency (RF) signal.Feed-in part 12 is extended from this radiant section 11, is used for transmitting radio-frequency (RF) signal.And coupling part 13, extension is from this radiant section 11 and be connected in grounded part 14.The first end 121 of this feed-in part 12 can be connected in the appropriate location of first radiation assembly 111, first radiation assembly 111 works in 2.4～2.5GHz frequency range, the second end 122 of this feed-in part 12 can approach grounded part 14 again, so that 1/8th to ten sixths of the about radiant section 11 signal wavelength of the length of feed-in part 12, this feed-in part 12 1 sides and in first, two ends 121, extend second radiation assembly 112 between 122, so that first, two radiation assemblies 111,112 generally are parallel, and second radiation assembly 112 works in 4.9～5.825GHz frequency range.
See also Fig. 6, Fig. 9, be a kind of multifrequency antenna of the present utility model, wherein have auxiliary radiation portion 113 between these feed-in part 12 1 sides and second radiation assembly, 112 root edges, to expand the frequency range of second radiation assembly 112.
See also Fig. 6, Fig. 9, be a kind of multifrequency antenna of the present utility model, wherein have matching part 114 between these feed-in part 12 another sides and the coupling part 13, to mate second radiation assembly 112 and feed-in path area is increased.
See also Fig. 6, be a kind of multifrequency antenna of the present utility model, wherein this feed-in part 12, auxiliary radiation portion 113, matching part 114 can be on same planes and one-body molded.
See also shown in Figure 6ly, be a kind of multifrequency antenna of the present utility model, but wherein the second end 122 electrically connects of this feed-in part 12 to the signal transmission terminal (not shown) of electronic equipment.
See also Figure 10, be a kind of multifrequency antenna of the present utility model, wherein this feed-in part 12 also can connect coaxial line 10 and forms, and the inner wire 101 of this coaxial line 10 is connected in the second end 122 of feed-in part 12, and the wire sheathing 102 of this coaxial line 10 is connected in grounded part 14.
A kind of multifrequency antenna of the present utility model,, wherein the length of this feed-in part 12 is about 1/8th to ten sixths of first radiation assembly, 111 signal wavelength.
A kind of multifrequency antenna of the present utility model, wherein the length of this feed-in part 12 is about 1/8th to ten sixths of second radiation assembly, 112 signal wavelength.
A kind of multifrequency antenna of the present utility model, wherein the length of this feed-in part 12 is about 1/12nd of first radiation assembly, 111 signal wavelength and is embodied as the best.
When the utility model antenna 1, when the length of 2 feed-in parts 12 is 1/8th to ten sixths of radiant section 11 signal wavelength (being embodied as the best) with 1/12nd wavelength, antenna 1,2 can in (for example: the WLAN taker) be built in electronic equipment internal, and can reach the polarization characteristic approximate with the circumscribed dipole antenna, system designer need not worried antenna 1,2 polarization characteristic is opposite with the circumscribed dipole antenna, and then the problem that causes system effectiveness to make a variation, so, the utility model can utilize antenna 1,2 are the horizontal or vertical electronic equipment internal that is arranged at, can improve the benefit of omni-directional transmitting/receiving wireless signal, further solve the shortcoming that the electronic equipment external antenna takes up room, integral body reaches wireless signal transmission benefit lifting and effectively reduces electronic equipment and use the practical effect that antenna took up space.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (11)
1, a kind of inverted F shaped antenna comprises: radiant section, feed-in part and coupling part is characterized in that: 1/8th to ten sixths of the about radiant section signal of the length wavelength of feed-in part.
2, inverted F shaped antenna according to claim 1, it is characterized in that, described feed-in partly can be electrical conductor and has first and second end, wherein first end can be connected in the appropriate location of radiant section, the second end can approach grounded part, but so that the second end electrically connect to the signal transmission terminal of electronic equipment.
3, inverted F shaped antenna according to claim 1 is characterized in that, described feed-in partly can be coaxial line, and the inner wire of described coaxial line is connected in the appropriate location of radiant section, and the wire sheathing of described coaxial line is connected in grounded part.
4, inverted F shaped antenna according to claim 1, it is characterized in that, described feed-in partly can be electrical conductor connection coaxial line to be formed, and the inner wire of described coaxial line is connected in the second end of electrical conductor, and the wire sheathing of described coaxial line is connected in grounded part.
According to the arbitrary described inverted F shaped antenna of claim 1 to 4, it is characterized in that 5, the length of described feed-in part is about 1/12nd of radiant section signal wavelength.
6, a kind of multifrequency antenna comprises: radiant section, have first and second radiation assembly at least, and feed-in part and coupling part is characterized in that: 1/8th to ten sixths of the about radiant section signal of the length wavelength of described feed-in part.
7, multifrequency antenna according to claim 6, it is characterized in that, described feed-in partly has first and second end, wherein first end can be connected in the appropriate location of radiant section, the second end can approach grounded part, so that but the second end electrically connect is to the signal transmission terminal of electronic equipment, first radiation assembly can work in 2.4～2.5GHz frequency range.
8, multifrequency antenna according to claim 7 is characterized in that, described feed-in partly can be the connection coaxial line to be formed, and the inner wire of described coaxial line is connected in the second end of feed-in part, and the wire sheathing of described coaxial line is connected in grounded part.
9, multifrequency antenna according to claim 6 is characterized in that, described feed-in part one side extends second radiation assembly, and second radiation assembly can work in 4.9～5.825GHz frequency range.
10, multifrequency antenna according to claim 6 is characterized in that, has auxiliary radiation portion between described feed-in part one side and the second radiation assembly root edge, has the matching part between described feed-in part opposite side limit and the coupling part.
According to claim 6 or 8 described multifrequency antennas, it is characterized in that 11, the length of described feed-in part is about 1/12nd of the first radiation assembly signal wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201338513U CN201327871Y (en) | 2008-09-28 | 2008-09-28 | Inverse-F-shaped antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201338513U CN201327871Y (en) | 2008-09-28 | 2008-09-28 | Inverse-F-shaped antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327871Y true CN201327871Y (en) | 2009-10-14 |
Family
ID=41179834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201338513U Expired - Fee Related CN201327871Y (en) | 2008-09-28 | 2008-09-28 | Inverse-F-shaped antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327871Y (en) |
-
2008
- 2008-09-28 CN CNU2008201338513U patent/CN201327871Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |