TWM564878U - Wireless communication device - Google Patents

Abstract

A wireless communication device is disclosed in the present disclosure that includes a printed circuit board, a key module and a sensor module. The key module is electrical connected to at least one key via the printed circuit board. The sensor module is electrical connected to the printed circuit board, where the printed circuit board is used to be an induction conductor of the sensor module.

Description

Wireless communication device

The present disclosure relates to a wireless communication device, and more particularly to the manner in which buttons, sensors, and antennas are disposed in a wireless communication device.

With the popularity of wireless communication devices, there are more demands on the appearance of wireless communication devices, such as narrowing the bezel and increasing the frequency ratio.

However, narrowing the frame of the wireless communication device has many negative effects, such as a reduction in communication quality caused by compression of the antenna design space. In addition, based on the requirements of current regulations, it is necessary to reduce the electromagnetic wave damage of the wireless communication device to the human body. Therefore, an additional electromagnetic wave sensor is disposed in the wireless communication device to instantly sense the electromagnetic wave and adjust the electromagnetic wave energy of the electromagnetic wave. However, the provision of additional sensors at the bezel will further reduce the antenna space.

Therefore, how to design a wireless communication device that can coexist with buttons, sensors and antennas in a limited space and achieve better communication quality is a major issue today.

The present invention provides a wireless communication device including a circuit board, a button module, and a sensing module. The button module is electrically connected to the at least one button via the circuit board. The sensing module is electrically connected to the circuit board, wherein the circuit board serves as an inductive conductor of the sensing module.

In summary, the present disclosure integrates the functions of the button module, the sensing module, and the antenna module on the same component to achieve the three-in-one function of the component and further improve the performance of the antenna.

100, 200, 800‧‧‧ wireless communication devices

110‧‧‧Circuit board

112‧‧‧Wiring

114‧‧‧Metal conductor

121, 321‧‧‧ button module

120, 320‧‧‧ button matching circuit

125‧‧‧Key circuit

131, 331‧‧‧ sensor module

130, 330‧‧‧Induction matching circuit

135‧‧‧Induction circuit

151, 152, 153‧‧ ‧ buttons

160, 221, 222, 223, 224, 260, 860‧‧‧ circuits

410, 610, 710‧‧ antenna elements

C1, C2, C3, C4‧‧‧ capacitors

L1, L2, L3, L4‧‧‧ inductance

220‧‧‧First antenna matching circuit

230‧‧‧Second antenna matching circuit

251, 252‧‧‧ antenna matching circuit

240‧‧‧Signal source

270‧‧‧Antenna Module

The above and other objects, features, advantages and embodiments of the present disclosure will become more apparent and understood. The description of the drawings is as follows: FIG. 1 is a diagram of a wireless communication according to some embodiments of the present disclosure. 2 is a schematic diagram of the edge of the wireless communication device of FIG. 1 according to some embodiments of the present disclosure; FIG. 3 is a diagram of a wireless device according to some embodiments of the present disclosure. FIG. 4 is a schematic diagram showing the edge of the wireless communication device of FIG. 3 according to some embodiments of the present disclosure; FIGS. 5A, 5B, 5C, and 5D are based on A schematic diagram of an antenna matching circuit in FIG. 4 is shown in some embodiments of the present disclosure; FIG. 6 is a schematic diagram showing an edge of the wireless communication device in FIG. 3 according to some embodiments of the present disclosure; FIG. 7 is a schematic diagram of an edge of a wireless communication device according to FIG. 3 according to some embodiments of the present disclosure; FIG. 8 is a schematic diagram of a wireless communication device according to some embodiments of the present disclosure. FIG. 9 is a schematic diagram showing the edge of the wireless communication device of FIG. 8 according to some embodiments of the present disclosure; and FIG. 10 is a diagram showing the wireless of FIG. 8 according to some embodiments of the present disclosure. Schematic diagram at the edge of the communication device.

In order to make the description of the present disclosure more detailed and complete, reference is made to the accompanying drawings and the various embodiments described below. On the other hand, well-known elements are not described in the embodiments to avoid unnecessarily limiting the disclosure.

"Coupling" or "connecting" as used in the following various embodiments may mean that two or more elements are "directly" in physical or electrical contact with each other, or are "indirectly" in physical or electrical contact with each other. It can also mean that two or more components interact with each other.

In this document, "one" and "the" can be used to mean one or more, unless the article specifically defines the article. It will be further understood that the terms "comprising", "comprising", "having", and <RTIgt; One or more of its other features, regions, integers, steps, operations, elements, components, and/or Group in.

FIG. 1 is a schematic diagram of a wireless communication device 100 according to some embodiments of the present disclosure. In some embodiments, the wireless communication device 100 can be implemented by a mobile phone, but is not limited thereto. Any electronic device that needs to narrow the frame and want to improve the sensing sensitivity is within the scope of the disclosure.

As shown in FIG. 1 , in some embodiments, the wireless communication device 100 includes a button 151 , a button 152 , a button 153 , a circuit board 110 , and a circuit 160 . The circuit board 110 is electrically connected to the buttons 151 , 152 , 153 and the circuit . 160.

In some embodiments, the button 151, the button 152, and the button 153 are disposed on the side surface of the wireless communication device 100, but are not limited thereto, and the button 151, the button 152, and the button 153 may be disposed at any position of the wireless communication device 100. In some embodiments, buttons 151, 152, and 153 can be buttons or power buttons that adjust volume. When the button 151, the button 152 or the button 153 is pressed, it is electrically connected to the circuit board 110 to transmit the signal to the circuit 160.

In some embodiments, the circuit board 110 is a flexible printed circuit (FPC), and the circuit board 110 has a first side surface and a second side surface opposite to the first side surface, wherein the first side surface includes A wire is routed, and the second side surface of the circuit board 110 is coated with copper, but is not limited thereto, and the second side surface may be made of any metal material. In some embodiments, the first side surface is coupled to the second side surface. In some other embodiments, an insulating layer is included between the first side surface and the second side surface such that the trace of the first side surface does not affect the voltage of the second side surface.

In some embodiments, circuit 160 includes circuitry associated with button 151, button 152, and button 153, and circuitry associated with the sensor module. Detailed circuit configurations are illustrated in FIG. 2 and will not be described herein.

FIG. 2 is a schematic diagram showing the edge of the wireless communication device 100 of FIG. 1 according to some embodiments of the present disclosure. In some embodiments, the circuit 160 includes a button module 121 and a sensor module 131. One end of the button module 121 is electrically connected to the trace 112 on the circuit board 110 via a connector (not shown). The other end of the sensing module 131 is electrically connected to the metal conductor 114 on the circuit board 110, and the other end of the sensing module 131 is grounded. In some embodiments, the traces 112 and the metal conductors 114 are disposed on the first side surface and the second side surface of the circuit board 110, respectively, and an isolation layer is disposed therebetween to enhance isolation between the traces 112 and the metal conductors 114. degree. In other embodiments, the traces 112 and the metal conductors 114 are disposed on the same side surface of the circuit board 110, respectively, and an isolation layer is disposed therebetween.

In detail, the circuit board 110 is disposed as a signal transmission channel of the button module 121 and is also used as an inductive conductor of the sensing module 131.

In some embodiments, when the button 151, the button 152 or the button 153 is pressed, the corresponding control signal is triggered to control the wireless communication device 100 to generate a corresponding function. For example, when the button 151 is pressed, a current is transmitted to the button module 121 via the circuit board 110, and the button module 121 generates a control signal to control the volume of the wireless communication device 100 to become larger; when the button 152 is pressed Transmitting a current to the button module via the circuit board 110 121. The button module 121 generates a control signal to control the volume of the wireless communication device 100 to be small. For example, when the button 153 is pressed, a current is transmitted to the button module 121 via the circuit board 110, and the button module 121 generates a corresponding control signal to control whether the power of the wireless communication device 100 is turned on or off.

As shown in FIG. 2, in some embodiments, the button module 121 includes a button matching circuit 120 and a button circuit 125, wherein one end of the button matching circuit 120 is electrically connected to the trace 112 on the circuit board 110, and the button matching circuit The other end of the switch 120 is electrically connected to one end of the button circuit 125, and the other end of the button circuit 125 is grounded.

In some embodiments, the button matching circuit 120 is configured to match the output current from the button 151, the button 152, and the button 153 with the input current of the button circuit 125. For example, the button matching circuit 120 can filter out unstable portions of the current from the button 151, the button 152, and the button 153, and input the button circuit 125. In practical applications, the button matching circuit 120 can be implemented by a resistor-capacitor (RC) filter circuit or an inductive filter circuit, but is not limited thereto, and any matched filter that can be used to adjust the impedance of the button circuit 125 is disclosed in the present disclosure. Within the scope of protection.

In some embodiments, the button circuit 125 is configured to process the current from the button matching circuit 120 and thereby control the wireless communication device 100 to generate a corresponding function.

In some embodiments, the sensing module 131 is configured to calculate a capacitance value between a sensing object (not shown) and the wireless communication device 100, and change the radiation power of the wireless communication device 100 according to the calculated capacitance value. Actually In the application, the sensing module 131 can be a contact capacitive sensor or a non-contact capacitive sensor. In detail, if the sensing module 131 is a contact capacitive sensor, the sensing module 131 changes the capacitance value between the circuit board 110 and the ground via contact between the sensing object (not shown) and the circuit board 110, and determines this. The sensing device (not shown) is in contact with the wireless communication device 100; if the sensing module 131 is a non-contact capacitive sensor, the sensing effect (not shown) may cause a coupling effect when approaching the circuit board 110, and the sensing When the device (not shown) approaches the sensing module 131, the coupling capacitance between the circuit board 110 and the ground terminal is changed, and the oscillation frequency of the oscillator (not shown) is changed accordingly. For example, when the conductor approaches the wireless communication device 100, the oscillation amplitude of the oscillator (not shown) gradually increases, and triggers a power control signal to reduce the electromagnetic wave power generated by the wireless communication device 100; when the conductor is away from the wireless communication device At 100 o'clock, the oscillation amplitude of the oscillator (not shown) gradually decreases, and the power control signal is triggered to increase the electromagnetic wave power generated by the wireless communication device 100.

The sensing module 131 further determines the distance between the sensing object (not shown) and the wireless communication device 100. In some embodiments, the sensing module 131 calculates the distance between the sensing object (not shown) and the wireless communication device 100 via the circuit board 110 as a conductor, and reduces the radiation power of the wireless communication device 100 according to the distance. In some other embodiments, the sensing module 131 determines whether the sensing object (not shown) is a human body through the calculated frequency of the changed distance, and if the sensing object (not shown) is non-human body, re-improving the wireless communication. Radiation power of device 100. In detail, if the frequency of the change is fast (that is, the frequency of the capacitance between the circuit board 110 and the ground is fluctuating), it is judged that the human body is, and the radiation power of the wireless communication device 100 is lowered.

As shown in FIG. 2 , in some embodiments, the sensing module 131 includes an inductive matching circuit 130 and an inductive circuit 135 , wherein one end of the inductive matching circuit 130 is electrically connected to the metal conductor on the circuit board 110 , and the inductive matching circuit 130 The second end is electrically connected to one end of the sensing circuit 135, and the other end of the sensing circuit 135 is grounded.

In some embodiments, the inductive matching circuit 130 is configured to perform noise filtering on the capacitance between the circuit board 110 and the ground to improve the sensitivity of the sensing module 131.

In some embodiments, the sensing circuit 135 is configured to calculate the distance between the sensing object (not shown) and the wireless communication device 100 according to the processed capacitance value of the sensing matching circuit 130, and change the radiation power of the wireless communication device 100 accordingly. .

FIG. 3 is a schematic diagram of a wireless communication device 200 according to some embodiments of the present disclosure. As shown in FIG. 3, the wireless communication device 200 includes a button 151, a button 152, a button 153, a circuit board 110, a circuit 260, and an antenna module 270, wherein the button 151, the button 152, and the button 153 are wireless as shown in FIG. The components of the communication device 100 having the same reference numerals have the same functions, and are not described herein again. The circuit 260 and the antenna module 270 are configured as shown in FIG. 4, FIG. 6, and FIG. 7, and will be shown in FIG. 4 and FIG. Figure and Figure 7 are examples for detailed explanation.

As shown in FIG. 3, the antenna module 270 is disposed inside the button 151, the button 152, and the button 153. In some embodiments, the antenna module 270 operates with the circuit board 110 and receives or transmits a wireless signal at an operating frequency. For example, the operating frequency can include 700MHz, 900MHz, 1800 MHz, but is not limited thereto, any frequency band for wireless communication is within the scope of the disclosure.

FIG. 4 is a schematic diagram showing the edge of the wireless communication device 200 of FIG. 3 according to some embodiments of the present disclosure. As shown in FIG. 4, in some embodiments, the wireless communication device 200 includes a button 151, a button 152, a button 153, a circuit board 110, a circuit 260, and an antenna module 270. The circuit 260 includes a button module 321 and an induction module. Group 331 and second antenna matching circuit 230. In some embodiments, one end of the button module 321 is electrically connected to the trace 112 on the circuit board 110, and the other end of the button module 321 is grounded; one end of the sensing module 131 is electrically connected to the metal on the circuit board 110. The conductor 114, the other end of the sensing module 131 is grounded; one end of the second antenna matching circuit 230 is electrically connected to the metal conductor 114 on the circuit board 110, and the other end of the second antenna matching circuit 230 is grounded, wherein the metal conductor 114 An equivalent antenna coupled to the antenna module 270 is formed in cooperation with the second antenna matching circuit 230.

In detail, in some embodiments, the trace 112 on the circuit board 110 is used as the signal transmission channel of the button module 321 , and the metal conductor 114 on the circuit board 110 is used as the sensing conductor of the sensing module 331 .

In some embodiments, the second antenna matching circuit 230 is used to select a suitable filter to adjust the resonant frequency of the circuit board 110 to optimize the performance of the circuit board 110.

In some embodiments, the button module 321 includes a button matching circuit 320 in addition to the button circuit 125 in the button module 121 of FIG. 2, and the sensing module 331 includes the sensing module in FIG. 131 In addition to the middle sensing circuit 135, an inductive matching circuit 330 is further included. As shown in FIG. 4, one end of the button matching circuit 320 is electrically connected to the trace 112 on the circuit board 110, and the other end of the button matching circuit 320 is electrically connected to the button circuit 125; one end of the inductive matching circuit 330 is electrically connected. To the metal conductor 114 on the circuit board 110, the other end of the inductive matching circuit 330 is electrically connected to the sensing circuit 135.

In some embodiments, the button matching circuit 320 is used to shift or filter out the resonant modes generated by the circuit board 110 when the buttons 151, 152 or 153 are operated. In some embodiments, the π-type filter circuit can be implemented, but is not limited thereto, and any circuit that can reduce the influence of the button 151, 152 or 153 on the antenna performance of the antenna module 270 is protected by the disclosure. Within the scope.

In some embodiments, the sensing circuit 135 is further configured to generate a control signal to the antenna module 270 to adjust the power of the antenna module 270 to reduce the amount of the conductive object or the partially conductive object. The function of the specific absorption rate (SAR) of the human body.

In some embodiments, the inductive matching circuit 330 is used to reduce the influence of the sensing circuit 135 on the antenna module 270.

In some embodiments, the antenna module 270 includes an antenna unit 410, a first antenna matching circuit 220, and a signal source 240. One end of the first antenna matching circuit 220 is electrically connected to the antenna unit 410, and the first antenna is matched. The other end of the circuit 220 is electrically connected to the signal source 240, and the antenna module 270 is coupled to the circuit board 110. In the embodiment of FIG. 4, the antenna module 270 includes The first antenna matching circuit 220 and the circuit 260 include the second antenna matching circuit 230. However, the wireless communication device 200 may include only the second metal conductor 114 electrically connected to the circuit board 110. The antenna matching circuit 230 may also include only the first antenna matching circuit 220 electrically connected to the antenna unit 410, or both.

In some embodiments, the signal source 240 is configured to generate an electrical signal and transmit it to the first antenna matching circuit 220.

In some embodiments, the first antenna matching circuit 220 is configured to select a suitable filter to correct an operating frequency corresponding to the electrical signal from the signal source 240, thereby optimizing the performance of the antenna module 270.

In some embodiments, the antenna unit 410 is configured to couple with the metal conductor 114 of the circuit board 110 to receive or transmit a corrected operating frequency via the first antenna matching circuit 220 or the second antenna matching circuit 230. The wireless signal is generated accordingly and the corresponding radiation pattern is generated. However, the relative position between the antenna unit 410 and the button 151, the button 152, and the button 153 is only a reference, and the actual setting position of the antenna unit 410 can be adjusted according to the frequency band, performance, and isolation of the operation.

In some embodiments, the first antenna matching circuit 220 and the second antenna matching circuit 230 can be implemented by various LC circuits (such as FIG. 5A, FIG. 5B, FIG. 5C, and FIG. 5D). Circuit 221, circuit 222, circuit 223, and circuit 224) are shown and are appropriately designed to adjust the frequency band of the operating frequency of antenna unit 410.

Please participate in FIG. 5A, FIG. 5B, FIG. 5C and FIG. 5D, wherein circuit 221 is a low-pass filter, which includes electricity. Sense L1 and capacitor C1, wherein the first end of the inductor L1 is electrically connected to the signal source 240, the first end of the capacitor C1 is electrically connected to the second end of the inductor L1 and the antenna unit 410, and the second end of the capacitor C1 is grounded; The circuit 222 is a high-pass filter, which includes an inductor L2 and a capacitor C2. The first end of the inductor L2 is electrically connected to the first end of the antenna unit 410 and the capacitor C2, and the second end of the capacitor C2. Electrically connected to the signal source 240; the circuit 223 is a band-pass filter, which includes an inductor L3 and a capacitor C3, wherein the antenna unit 410 is electrically connected to the first end of the inductor L3, and the capacitor C3 is first. The terminal and the signal source 240, the second end of the capacitor C3 and the second end of the inductor L3 are respectively grounded; the circuit 224 is a band-stop filter, which comprises an inductor L4 and a capacitor C4, wherein the antenna unit 410 is electrically The first end of the inductor L4 and the second end of the capacitor C4 are electrically connected to the signal source 240.

As shown in FIG. 6, in some embodiments, the button 151, the button 152, the button 153, the circuit board 110, the circuit 160, and the antenna module 270 are included, wherein the button 151, the button 152, the button 153, and the circuit board 110 are included. The circuit 160 has the same functions as those of the components having the same reference numerals in FIG. 4, and details are not described herein again.

In some embodiments, the antenna module 270 includes an antenna unit 610, a first antenna matching circuit 220, and a signal source 240. As shown in FIG. 6, the antenna module 270 is electrically connected to the circuit board 110 for jointly forming an antenna, for example, a Planar Inverted F Antenna (PIFA), wherein the antenna unit 610 and the circuit board 110 The metal conductors 114 together serve as a radiating portion of the planar inverted-F antenna and pass through the second antenna matching circuit 230 grounded. However, the relative position between the antenna unit 610 and the button 151, the button 152, and the button 153 is only a reference, and the actual setting position of the antenna unit 610 can be adjusted according to the frequency band, performance, and isolation of the operation.

As shown in FIG. 7, in some embodiments, the button 151, the button 152, the button 153, the circuit board 110, the circuit 160, and the antenna module 270 are included, wherein the button 151, the button 152, the button 153, and the circuit board 110 are included. The circuit 160 has the same functions as those of the components having the same reference numerals in FIG. 4, and details are not described herein again.

In some embodiments, the antenna module 270 includes an antenna unit 710, a first antenna matching circuit 220, and a signal source 240. As shown in FIG. 7, the antenna module 270 is electrically connected to the circuit board 110 for jointly forming an antenna, for example, a loop antenna, wherein the antenna unit 710 and the metal conductor 114 of the circuit board 110 are loops. The radiating portion of the antenna is grounded through the second antenna matching circuit 230. However, the relative position between the antenna unit 710 and the button 151, the button 152, and the button 153 is only a reference, and the actual setting position of the antenna unit 710 can be adjusted according to the frequency band, performance, and isolation of the operation.

In some embodiments, the antenna unit 410 in FIG. 4, the antenna unit 610 in FIG. 6, and the antenna unit 710 in FIG. 7 can operate on networks of various frequency bands, for example, Long Term Evolution (Long) Term Evolution, LTE), Worldwide Interoperability for Microwave Access (WiMax), Wireless Local Area Network (Wi-Fi), Global System for Mobile Communications (GSM), but not limited to Ren The frequency bands suitable for wireless communication are within the scope of the disclosure.

In some embodiments, the antenna module 270 included in FIG. 4, FIG. 6 and FIG. 7 further includes an switch (not shown) electrically connected to the first antenna matching circuit 220 and the antenna unit. Between 410/610/710, when the wireless communication device 200 is located in a narrow bandwidth environment, the center frequency is switched, and then the appropriate circuit 221/222/223/224 is selected to improve the transmission efficiency of the antenna module 270. . In some embodiments, the switch (not shown) may be implemented by a switch or a tuner, but is not limited thereto, and any circuit that can switch frequencies is within the scope of the disclosure. Inside.

FIG. 8 is a schematic diagram of a wireless communication device 800 in accordance with some embodiments of the present disclosure. As shown in FIG. 8, the wireless communication device 800 includes a button 151, a button 152, a button 153, a circuit board 110, and a circuit 860, wherein the button 151, the button 152, and the button 153 have the same function as the wireless communication device 100 shown in FIG. The elements of the reference numerals have the same functions, and will not be described again here, and the circuit 860 is configured as shown in FIGS. 9 and 10, and will be described in detail with reference to FIG. 9 and FIG.

FIG. 9 is a schematic diagram showing the edge of the wireless communication device 800 of FIG. 8 according to some embodiments of the present disclosure. As shown in FIG. 9 , in some embodiments, the circuit 860 includes a button module 321 , a sensing module 331 , an antenna matching circuit 251 , and a signal source 240 . The button module 321 is electrically connected to the circuit board 110 . The sensor module 331 is electrically connected to the metal conductor 114 on the circuit board 110. The signal source 240 is electrically connected to the metal conductor 114 on the circuit board 110 via the antenna matching circuit 251.

In detail, in some embodiments, on the circuit board 110 The antenna 112 is used as the signal transmission channel of the button module 321 . The metal conductor 114 on the circuit board 110 serves as the sensing conductor of the sensing module 331 and the radiating portion of the antenna, and grounds the antenna through the antenna matching circuit 251. The antenna is an antenna equivalently operated by the circuit board 110, the antenna matching circuit 251, the signal source 240, and the ground.

In one embodiment, one end of the antenna matching circuit 251 is electrically connected to the metal conductor 114 on the circuit board 110, and the other end of the antenna matching circuit 251 is electrically connected to the signal source 240 and the ground. In this embodiment, the antenna can be operated by the circuit board 110, the antenna matching circuit 251, the signal source 240, and the ground to generate a wireless signal corresponding to the electrical signal from the signal source 240. In detail, the circuit board 110 generates a wireless signal corresponding to the resonant frequency according to the resonant frequency corresponding to the electrical signal from the signal source 240 corrected by the antenna matching circuit 251, and performs the wireless signal with the wireless base station. Wireless communication.

In some embodiments, the antenna matching circuit 251 can be implemented by two matching circuits to simultaneously match the frequency of the signal source 240 and the frequency of the ground, and optimize the performance of the antenna accordingly.

In some embodiments, the button module 321 includes a button matching circuit 320 and a button circuit 125. One end of the button matching circuit 320 is electrically connected to the trace 112 on the circuit board 110, and the other end of the button matching circuit 320 is electrically connected. To one end of the button circuit 125, the other end of the button circuit 125 is grounded. The sensing module 331 includes an inductive matching circuit 330 and an inductive circuit 135. One end of the inductive matching circuit 330 is electrically connected to the metal conductor 114 on the circuit board 110, and the other end of the inductive matching circuit 330 is electrically connected to One end of the sensing circuit 135 and the other end of the sensing circuit 135 are grounded.

In some embodiments, the button matching circuit 320, the button circuit 125, the inductive matching circuit 330, and the sensing circuit 135 shown in FIG. 9 have the same functions as those of the elements having the same reference numerals in FIG.

FIG. 10 is a schematic diagram showing the edge of the wireless communication device 800 of FIG. 8 according to some embodiments of the present disclosure. As shown in FIG. 10, in some embodiments, the circuit 860 includes a button module 321, a sensing module 331, an antenna matching circuit 252, and a signal source 240. The button module 321 and the sensing module 331 are electrically connected to The signal 112 is routed on the circuit board 110, and the signal source 240 is electrically connected to the trace 112 on the circuit board 110 via the antenna matching circuit 252.

In detail, in some embodiments, since the material of the traces 112 on the circuit board 110 is metal, the traces 112 on the circuit board 110 can simultaneously serve as the signal transmission channel of the button module 321 and the sensing module 331. Inductive conductor and radiating portion of the antenna.

In some embodiments, one end of the antenna matching circuit 252 is electrically connected to the trace 112 on the circuit board 110, and the other end of the antenna matching circuit 252 is electrically connected to the signal source 240. In this embodiment, the antenna is an equivalent antenna that is operated by the circuit board 110, the antenna matching circuit 252, and the signal source 240 to generate a wireless signal corresponding to the electrical signal from the signal source 240. In detail, the circuit board 110 generates a wireless signal corresponding to the resonant frequency according to the resonant frequency corresponding to the electrical signal from the signal source 240 corrected by the antenna matching circuit 252, and performs the wireless signal with the wireless base station. Wireless communication.

In some embodiments, the button module 321 includes a button matching circuit 320 and a button circuit 125. One end of the button matching circuit 320 is electrically connected to the trace 112 on the circuit board 110, and the other end of the button matching circuit 320 is electrically connected. To one end of the button circuit 125, the other end of the button circuit 125 is grounded. The sensing module 331 includes an inductive matching circuit 330 and a sensing circuit 135. One end of the inductive matching circuit 330 is electrically connected to the trace 112 on the circuit board 110. The other end of the inductive matching circuit 330 is electrically connected to one end of the sensing circuit 135. The other end of the sensing circuit 135 is grounded.

In some embodiments, the button circuit 125, the inductive matching circuit 330, the sensing circuit 135, the first antenna matching circuit 220, and the second antenna matching circuit 230 are identical in function to the elements having the same reference numerals in FIG. In some embodiments, the button matching circuit 320 is used to reduce the resonance mode of the circuit board 110 when the button 151, 152 or 153 is operated, and to reduce the button module 321 and the sensing module. 331 and interference between the signals transmitted by the antennas respectively.

In summary, the present disclosure functions on the same component (ie, the circuit board 110) through the functions of the integrated button module 321, the sensing module 331, and the antenna, so as to achieve the three-in-one function of the component, and further Improve the performance of the antenna.

The present disclosure has been disclosed in the above embodiments, but it is not intended to limit the disclosure, and any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection of the disclosure is subject to the definition of the scope of the patent application.

Claims (9)

A wireless communication device includes: a circuit board; a button module electrically connected to the at least one button; and a sensor module electrically connected to the circuit board, wherein the circuit board serves as the sensing Inductive conductor of the module. The wireless communication device of claim 1, wherein the button module is electrically connected to one of the traces on the circuit board, and the sensor module is electrically connected to the metal conductor on the circuit board different from the trace . The wireless communication device of claim 1, wherein the sensing module changes the electromagnetic wave power generated by the wireless communication device according to a coupling relationship between the circuit board and a sensing object. The wireless communication device of claim 3, wherein the sensing module comprises: an inductive matching circuit electrically connected to the circuit board for correcting a change in a capacitance value between the circuit board and the sensing object; An inductive circuit is electrically connected to the inductive matching circuit for changing the radiated power of the wireless communication device according to the changed capacitance value. The wireless communication device of claim 1, further comprising: an antenna module coupled to the circuit board or electrically connected to the circuit board. The wireless communication device of claim 5, wherein the button module is electrically connected to one of the traces on the circuit board, and the sensor module and the antenna module are electrically connected to the circuit board different from the walk One of the metal conductors of the wire. The wireless communication device of claim 5, wherein the antenna module comprises: a first antenna matching circuit for correcting an operating frequency of the antenna module; and an antenna unit electrically connected to the first Antenna matching circuit. The wireless communication device of claim 7, wherein the circuit board comprises a metal conductor electrically connected to a second antenna matching circuit. The wireless communication device of claim 1, further comprising: an antenna matching circuit, one end of the antenna matching circuit is electrically connected to the circuit board, and the other end of the antenna matching circuit is electrically connected to a signal source.