TW201507263A - Switching frequency modulation antenna module, and a portable electronic device and a method of modifying the antenna frequency thereof - Google Patents

Abstract

A method of modifying the antenna frequency of a portable electronic device includes: adjusting the adjustable angle of the top casing relative to the bottom casing, and then detecting whether the adjustable angle of the top casing relative to the bottom casing is smaller than a first predetermined angle or larger than a second predetermined angle. When the adjustable angle of the top casing relative to the bottom casing is not smaller than the first predetermined angle or larger than the second predetermined angle, turning off the change-over switch to use the switching frequency modulation antenna module for providing a first predetermined working frequency band by only using the main antenna structure. When the adjustable angle of the top casing relative to the bottom casing is smaller than the first predetermined angle or larger than the second predetermined angle, turning on the change-over switch to use the switching frequency modulation antenna module for providing a second predetermined working frequency band by matching the main antenna structure and the auxiliary antenna structure.

Description

Switching FM antenna module, portable electronic device and antenna frequency modulation method thereof

The present invention relates to a switched FM antenna module, a portable electronic device and an antenna frequency modulation method thereof, and more particularly to a switched FM antenna module capable of providing better antenna performance under different environmental conditions, and Portable electronic device and its antenna frequency modulation method.

Conventional antenna modules are typically placed in the upper or lower housing of a notebook computer. Assuming that the antenna module is disposed in the lower case of the notebook computer, when the lower case is closed on the front surface of the lower case, or the lower case is rotated 360 degrees to cover the back side of the lower case, The antenna module is shielded by the upper casing and affects the antenna performance of the antenna module. Therefore, the conventional antenna module cannot provide better antenna performance under different environmental conditions.

An embodiment of the present invention provides a switched FM antenna module, a portable electronic device, and an antenna frequency modulation method thereof, which can be under different environmental conditions (for example, different adjustable angles of the upper casing relative to the lower casing) Better antenna performance can be provided.

A switched FM antenna module and a portable electronic device with a switched FM antenna module are provided in one embodiment of the present invention. The switched FM antenna module comprises: a main antenna unit, an auxiliary antenna unit and a sensing unit. The primary antenna unit includes a primary antenna structure. The auxiliary antenna unit includes a supplement The antenna structure and a switch electrically connected between the main antenna structure and the auxiliary antenna structure. The sensing unit includes a sensing element electrically connected to the switching switch for turning off or turning on the switching switch.

Another embodiment of the present invention provides a switched FM antenna module and a portable electronic device with a switched FM antenna module. The switched FM antenna module includes: a primary antenna unit, a first auxiliary antenna unit, a second auxiliary antenna unit, and a sensing unit. The primary antenna unit includes a primary antenna structure. The first auxiliary antenna unit includes a first auxiliary antenna structure and a first switch electrically connected between the main antenna structure and the first auxiliary antenna structure. The second auxiliary antenna unit includes a second auxiliary antenna structure and a second switch electrically connected between the main antenna structure and the second auxiliary antenna structure. The sensing unit includes a sensing element electrically connected to the first switching switch and the second switching switch for turning off or turning on the first switching switch and for turning off or turning on the The second switch.

An antenna frequency modulation method for a portable electronic device according to another embodiment of the present invention includes the following steps: first, adjusting the adjustable angle of the upper casing relative to the lower casing; then, Passing the sensing unit to detect whether the adjustable angle of the upper casing relative to the lower casing has been less than a first predetermined angle or greater than a second predetermined angle; then, when When the adjustable angle of the housing relative to the lower housing is not less than the first predetermined angle or greater than the second predetermined angle, the switching switch is turned off, so that the switched FM antenna module is directly Providing a first predetermined operating frequency band by the primary antenna structure; next, when the adjustable angle of the upper casing relative to the lower casing is less than the first predetermined angle or greater than the first When the angle is two, the switch is turned on, so that the switched FM antenna module provides a second predetermined working frequency band by the cooperation of the primary antenna structure and the auxiliary antenna structure.

The beneficial effects of the present invention may be that the switched FM antenna module, the portable electronic device and the antenna frequency modulation method thereof are permeable to the present invention. "the sensing element is electrically connected to the switch for turning the switch on or off" or "the sensing element is electrically connected to the first switch and the second switch a design for opening or closing the first changeover switch and for opening or closing the second changeover switch such that (1) when the adjustable angle of the upper casing relative to the lower casing is not less than When the predetermined angle is greater than the second predetermined angle, the switch is turned off, so that the switched FM antenna module directly provides a first predetermined working frequency band through the main antenna structure; (2) when the upper casing is opposite to the lower casing When the adjustable angle is less than the first predetermined angle or greater than the second predetermined angle, the switch is turned on, so that the switched FM antenna module provides a second predetermined working frequency band by mutual cooperation of the main antenna structure and the auxiliary antenna structure.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

Z‧‧‧ portable electronic device

B‧‧‧ Lower case

T‧‧‧Upper casing

H‧‧‧ pivoter

Θ‧‧‧ adjustable angle

M‧‧‧Switching FM Antenna Module

1‧‧‧Main antenna unit

10‧‧‧Main antenna structure

2‧‧‧Auxiliary antenna unit

20‧‧‧Auxiliary antenna structure

21‧‧‧Toggle switch

2A‧‧‧First Auxiliary Antenna Unit

20A‧‧‧First auxiliary antenna structure

21A‧‧‧First switch

2B‧‧‧Second auxiliary antenna unit

20B‧‧‧Second auxiliary antenna structure

21B‧‧‧Second switch

3‧‧‧Sensor unit

30‧‧‧Sensor components

4‧‧‧Matching circuit

5‧‧‧RF system

1 is a functional block diagram of a switching type switching antenna module closing switch according to a first embodiment of the present invention.

2 is a functional block diagram of a switching type switching antenna module opening switch according to a first embodiment of the present invention.

3 is a side view showing the adjustable angle of the upper casing of the portable electronic device with respect to the lower casing at 0 degree according to the first embodiment of the present invention.

4 is a side view showing the adjustable angle of the upper casing of the portable electronic device with respect to the lower casing at 90 degrees according to the first embodiment of the present invention.

FIG. 5 is a side view of the upper housing of the portable electronic device according to the first embodiment of the present invention with an adjustable angle of 180 degrees with respect to the lower housing.

FIG. 6 is a side view showing the adjustable angle of the upper casing of the portable electronic device with respect to the lower casing being 360 degrees according to the first embodiment of the present invention.

FIG. 7 is a graph showing a corresponding optimal standing wave ratio that can be provided by the switched FM antenna module according to the first embodiment of the present invention at different operating frequencies.

FIG. 8 is a graph showing the corresponding optimum antenna efficiency that the switched FM antenna module can provide at different operating frequencies according to the first embodiment of the present invention.

FIG. 9 is a flowchart of an antenna frequency modulation method of a portable electronic device according to a first embodiment of the present invention.

FIG. 10 is a functional block diagram of a switched FM antenna module according to a second embodiment of the present invention.

[First Embodiment]

Referring to FIG. 1 and FIG. 2, a first embodiment of the present invention provides a switched FM antenna module M, including: a primary antenna unit 1, an auxiliary antenna unit 2, and a sensing unit 3. The primary antenna unit 1 includes a primary antenna structure 10 having a first predetermined antenna track pattern. The auxiliary antenna unit 2 includes an auxiliary antenna structure 20 having a second predetermined antenna track pattern and a switch 21 electrically connected between the main antenna structure 10 and the auxiliary antenna structure 20. The sensing unit 3 includes a sensing element 30 electrically connected to the switching switch 21 for turning off the switching switch 21 (such as the open state shown in FIG. 1) or turning on the switching switch 21 (electricity as shown in FIG. 2). Turn-on state). Further, the switched FM antenna module M further includes: a matching circuit 4 electrically connected to the main antenna structure 10 and a radio frequency system 5 electrically connected to the matching circuit 4.

For example, first, as shown in FIG. 1, when the changeover switch 21 assumes a closed state by the control of the sensing element 30, the primary antenna structure 10 and the auxiliary antenna structure 20 are electrically insulated from each other. Therefore, when the changeover switch 21 is turned off by the control of the sensing element 30 (open state), the switched FM antenna module M can directly provide a first predetermined operating frequency band through the primary antenna structure 10. In addition, as shown in FIG. 2, when the changeover switch 21 is in an open state (electrical conduction state) by the control of the sensing component 30, the main antenna structure 10 is electrically connected to the auxiliary antenna structure 20 through the switch 21, The main antenna structure 10 and the auxiliary antenna structure 20 are electrically coupled to each other. Therefore, when the changeover switch 21 is turned on by the control of the sensing element 30, the switched FM antenna module M can pass through the main antenna structure 10 and the auxiliary antenna junction. The cooperation of the structures 20 provides a second predetermined operating frequency band.

As shown in FIG. 3 to FIG. 6 , the first embodiment of the present invention provides a portable electronic device Z. The portable electronic device Z includes a lower housing B and a pivotal connection through a pivot connector H. The upper casing T of the casing B and a switching FM antenna module M built in the lower casing B, and the upper casing T has an adjustable angle θ with respect to the lower casing B. For example, the portable electronic device Z can be a notebook computer, wherein the lower case B of the notebook computer has a keyboard, and the upper case T of the notebook computer has a display. However, the invention is not limited thereto.

Further, FIG. 3 shows a state in which "the upper casing T is covered on the lower casing B", and at this time, the adjustable angle θ of the upper casing T with respect to the lower casing B is about 0 degrees. 4 shows a state in which the upper casing T is split to be substantially perpendicular to the lower casing B, and the adjustable angle θ of the upper casing T with respect to the lower casing B is about 90 degrees. Fig. 5 shows a state in which "the upper casing T is split to be substantially parallel to the lower casing B", and at this time, the adjustable angle θ of the upper casing T with respect to the lower casing B is about 180 degrees. Fig. 5 shows a state in which "the upper casing T is turned over onto the back surface of the lower casing B", at which time the adjustable angle θ of the upper casing T with respect to the lower casing B is about 360 degrees.

For example, as shown in FIG. 1, when the changeover switch 21 is turned off (OFF), the adjustable angle θ of the upper casing T relative to the lower casing B is 0 degrees, 90 degrees, 180 degrees, and 360 degrees, respectively. In this case, the antenna efficiency corresponding to the different operating frequencies can be obtained, as shown in the following table:

For example, as shown in FIG. 2, when the changeover switch 21 is turned on (ON), the adjustable angle θ of the upper casing T relative to the lower casing B is 0, 90, 180, and 360 degrees, respectively. In this case, the antenna efficiency values corresponding to different operating frequencies can be obtained, as shown in the following table:

Therefore, when the user flips the upper casing T such that the adjustable angle θ of the upper casing T relative to the lower casing B is 0 degrees and 360 degrees, respectively (as shown in FIGS. 3 and 6), the switching frequency modulation is performed. The antenna module M can detect that the adjustable angle θ of the upper casing T relative to the lower casing B is 0 degrees and 360 degrees respectively by detecting the sensing component 30, and the switched FM antenna module M passes through Control of the sensing element 30 to turn on the changeover switch 21 (shown in FIG. 2) so that even if the adjustable angle θ of the upper casing T relative to the lower casing B is 0 degrees and 360 degrees, respectively, switching The FM antenna module M can still provide the best antenna efficiency (as shown in the following table), the best standing wave ratio (SWR) (as shown in Figure 7), and the best at the corresponding operating frequency. Antenna efficiency (as shown in Figure 8).

Furthermore, according to the same principle as described above, when the user flips the upper casing T such that the adjustable angle θ of the upper casing T relative to the lower casing B is 90 degrees and 180 degrees, respectively (see FIGS. 4 and 5). As shown in the figure, the switching FM antenna module M can detect that the adjustable angle θ of the upper casing T relative to the lower casing B is 90 degrees and 180 degrees respectively by the detection of the sensing component 30. The FM antenna module M turns off the switch 21 (shown in FIG. 1) by the control of the sensing element 30, so that the adjustable angle θ of the upper casing T relative to the lower casing B is 90 degrees and 180 degrees, respectively. In the case of the switching FM antenna module M, it can still provide the optimal antenna gain value (as shown in the following table) and the optimal standing wave ratio (SWR) at the corresponding operating frequency (as shown in Fig. 7). Show), and the best antenna efficiency (as shown in Figure 8). Therefore, this creative switch The FM antenna module M can still provide better antenna performance under different environmental conditions.

Referring to FIG. 9 , the first embodiment of the present invention further provides an antenna frequency modulation method for the portable electronic device Z, which includes the following steps: First, adjusting the upper casing T relative to FIG. 3 to FIG. Adjustable angle θ of the lower casing B (S100), and through the sensing unit 3, to detect whether the adjustable angle θ of the upper casing T relative to the lower casing B has been less than a first predetermined angle or greater than one a second predetermined angle (S102); then, as shown in FIG. 1, FIG. 4 and FIG. 5, when the adjustable angle θ of the upper casing T relative to the lower casing B is not less than a first predetermined angle or greater than a second predetermined angle When the switching switch 21 is turned off, the switched FM antenna module M directly provides a first predetermined working frequency band through the main antenna structure 10 (S104); then, as shown in FIG. 2, FIG. 3 and FIG. When the adjustable angle θ of the housing T relative to the lower housing B is less than the first predetermined angle or greater than the second predetermined angle, the switch 21 is turned on, so that the switched FM antenna module M passes through the main antenna structure 10 and the auxiliary antenna. The cooperation of the structures 20 provides a second predetermined work Band (S106).

For example, when the adjustable angle θ of the upper casing T relative to the lower casing B is less than 10 degrees or greater than 350 degrees, since the upper casing T having a metal material is very close to the switching inside the lower casing B The FM antenna module M, so the antenna performance of the main antenna structure 10 is affected by the shielding of the upper casing T. At this point, this creation can The switch 21 is turned on so that the switched FM antenna module M can provide a better second predetermined operating frequency band by the cooperation of the primary antenna structure 10 and the auxiliary antenna structure 20. However, when the adjustable angle θ of the upper casing T relative to the lower casing B is between 10 degrees and 350 degrees, since the upper casing T having a metal material is relatively far away from the switching FM located inside the lower casing B The antenna module M, so the antenna performance of the main antenna structure 30 is not affected by the shielding of the upper casing T. At this time, the creation switch can be turned off so that the switched FM antenna module M can directly provide a first predetermined operating frequency band through the main antenna structure 10.

[Second embodiment]

Referring to FIG. 10, a second embodiment of the present invention provides a switched FM antenna module M, including: a primary antenna unit 1, a first auxiliary antenna unit 2A, a second auxiliary antenna unit 2B, and a sense The measuring unit 3, wherein the first auxiliary antenna unit 2A and the second auxiliary antenna unit 2B belong to a parallel design, so the number of auxiliary antenna units connected in parallel is not limited thereto. It can be seen from the comparison between FIG. 10 and FIG. 1 that the second embodiment of the present invention has the greatest difference from the first embodiment in that the first auxiliary antenna unit 2A includes a first auxiliary antenna structure 20A and an electrical connection to the main antenna structure 10. And a first switch 21A between the first auxiliary antenna structure 20A. The second auxiliary antenna unit 2B includes a second auxiliary antenna structure 20B and a second switching switch 21B electrically connected between the main antenna structure 10 and the second auxiliary antenna structure 20B. The sensing unit 3 includes a sensing component 30 electrically connected to the first switching switch 21A and the second switching switch 21B for turning the first switching switch 21A on or off and for turning the second switching switch 21B on or off. .

Therefore, (1) when the first changeover switch 21A is brought into an open state by the control of the sensing element 30, the main antenna structure 10 is electrically connected to the first auxiliary antenna structure 20A through the first changeover switch 21A, so that the main The antenna structure 10 and the first auxiliary antenna structure 20A are electrically coupled to each other, whereby the switched FM antenna module M can provide a desired operating frequency band by the mutual cooperation of the primary antenna structure 10 and the first auxiliary antenna structure 20A. (2) When the second changeover switch 21B passes the control of the sensing element 30 The main antenna structure 10 is electrically connected to the second auxiliary antenna structure 20B through the second switch 21B, so that the main antenna structure 10 and the second auxiliary antenna structure 20B are electrically coupled to each other, thereby switching. The FM antenna module M can provide the required operating frequency band by the mutual cooperation of the primary antenna structure 10 and the second auxiliary antenna structure 20B. (3) When the first changeover switch 21A is in a closed state by the control of the sensing component 30, the primary antenna structure 10 and the first auxiliary antenna structure 20A are electrically insulated from each other, whereby the switched FM antenna module M can be directly The desired operating frequency band is provided by the primary antenna structure 10 alone. When the second changeover switch 21B is in a closed state by the control of the sensing component 30, the primary antenna structure 10 and the second auxiliary antenna structure 20B are electrically insulated from each other, whereby the switched FM antenna module M can directly pass through the main Antenna structure 10 provides the desired operating frequency band.

[Possible effects of the examples]

In summary, the benefit of the present invention may be that the switching FM antenna module M, the portable electronic device Z, and the antenna frequency modulation method thereof are provided by the sensing component 30. Connected to the switch to open or close the switch 20" or "the sensing element 30 is electrically connected to the first switch 21A and the second switch 21B for turning the first switch 21A on or off. And a design for opening or closing the second changeover switch 21B" such that (1) when the adjustable angle θ of the upper casing T relative to the lower casing B has not been less than a first predetermined angle or greater than a second predetermined angle, Turning off the switch 21 so that the switched FM antenna module M directly provides a first predetermined operating frequency band through the primary antenna structure 10; (2) when the adjustable angle θ of the upper casing T relative to the lower casing B is less than When the first predetermined angle is greater than the second predetermined angle, the switch 21 is turned on, so that the switched FM antenna module M provides a second predetermined operating frequency band through the mutual cooperation of the primary antenna structure 10 and the auxiliary antenna structure 20.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent technical changes made by the present invention and the contents of the drawings are included in the scope of the present invention.

The designated representative diagram is a flow chart, so no symbol is simply stated.

Claims (15)

A switched FM antenna module, comprising: a main antenna unit, the main antenna unit comprising a main antenna structure; an auxiliary antenna unit, the auxiliary antenna unit comprising an auxiliary antenna structure and an electrical connection a switching switch between the main antenna structure and the auxiliary antenna structure; and a sensing unit, the sensing unit includes a sensing element electrically connected to the switching switch for turning off or switching the switching switch. The switched FM antenna module of claim 1, wherein the primary antenna structure is electrically connected to the auxiliary through the switch when the switch is in an open state by control of the sensing element The antenna structure is such that the primary antenna structure and the auxiliary antenna structure are electrically coupled to each other. The switched FM antenna module of claim 1, wherein the primary antenna structure and the auxiliary antenna structure are electrically insulated from each other when the switch is rendered in a closed state by control of the sensing element. The switching FM antenna module of claim 1, further comprising: a matching circuit electrically connected to the main antenna structure and a radio frequency system electrically connected to the matching circuit. A switched FM antenna module includes: a primary antenna unit, the primary antenna unit includes a primary antenna structure; a first auxiliary antenna unit, the first auxiliary antenna unit includes a first auxiliary antenna structure and a a first switch that is electrically connected between the primary antenna structure and the first auxiliary antenna structure; a second auxiliary antenna unit that includes a second auxiliary antenna structure and an electrical a second switch connected between the main antenna structure and the second auxiliary antenna structure; and a sensing unit, wherein the sensing unit includes a first electrical connection to the first cut And a sensing element of the second switching switch for switching off or turning on the first switching switch and for turning off or turning on the second switching switch. The switched FM antenna module of claim 5, wherein the primary antenna structure is electrically connected through the first switch when the first switch is in an open state by control of the sensing element The first auxiliary antenna structure is configured such that the primary antenna structure and the first auxiliary antenna structure are electrically coupled to each other. The switched FM antenna module of claim 5, wherein the primary antenna structure is electrically connected through the second switch when the second switch is in an open state by control of the sensing element The second auxiliary antenna structure is configured such that the primary antenna structure and the second auxiliary antenna structure are electrically coupled to each other. The switching FM antenna module of claim 5, wherein the primary antenna structure and the first auxiliary antenna structure are electrically connected to each other when the first switching switch is in a closed state by control of the sensing element insulation. The switching FM antenna module of claim 5, wherein the primary antenna structure and the second auxiliary antenna structure are electrically connected to each other when the second switching switch is in a closed state by control of the sensing element insulation. The switching FM antenna module of claim 5, further comprising: a matching circuit electrically connected to the main antenna structure and a radio frequency system electrically connected to the matching circuit. A portable electronic device has a built-in FM antenna module, wherein the switched FM antenna module comprises: a main antenna unit, the main antenna unit includes a main antenna structure; and an auxiliary antenna unit. The auxiliary antenna unit includes an auxiliary antenna structure and a switch electrically connected between the main antenna structure and the auxiliary antenna structure; and a sensing unit, wherein the sensing unit includes an electrical connection The switch Sensing element for turning the switch on or off. The portable electronic device of claim 11, further comprising: a lower housing and an upper housing pivotally connected to the lower housing, wherein the upper housing has a relative to the lower housing The angle can be adjusted, and the switched FM antenna module is built in the lower casing. An antenna frequency modulation method for a portable electronic device according to claim 12, comprising the steps of: adjusting said adjustable angle of said upper casing relative to said lower casing; and detecting by said sensing unit Determining whether the adjustable angle of the upper casing relative to the lower casing has been less than a first predetermined angle or greater than a second predetermined angle; when the upper casing is opposite to the lower casing Turning off the switch when the adjustable angle is not less than the first predetermined angle or greater than the second predetermined angle, so that the switched FM antenna module directly provides a first through the primary antenna structure a predetermined operating frequency band; and when the adjustable angle of the upper housing relative to the lower housing has been less than the first predetermined angle or greater than the second predetermined angle, turning on the switch The switched FM antenna module provides a second predetermined operating frequency band by mutual cooperation of the primary antenna structure and the auxiliary antenna structure. A portable electronic device has a built-in FM antenna module, wherein the switched FM antenna module comprises: a main antenna unit, the main antenna unit includes a main antenna structure; and a first auxiliary antenna The first auxiliary antenna unit includes a first auxiliary antenna structure and a first switch electrically connected between the main antenna structure and the first auxiliary antenna structure; a second auxiliary antenna unit, The second auxiliary antenna unit includes a second auxiliary antenna structure and is electrically connected to the main antenna structure and the second auxiliary a second switching switch between the antenna structures; and a sensing unit, the sensing unit includes a sensing element electrically connected to the first switching switch and the second switching switch for Turning off or turning on the first switch and turning off or turning on the second switch. The portable electronic device of claim 14, further comprising: a lower housing and an upper housing pivotally connected to the lower housing, wherein the upper housing has a relative to the lower housing The angle can be adjusted, and the switched FM antenna module is built in the lower casing.