阅读说明：本技术 有源功放集成天线及通信设备 (Active power amplifier integrated antenna and communication equipment ) 是由 黄民拥 钟海辉 余富营 林广远 于 2021-08-06 设计创作，主要内容包括：本申请公开了一种有源功放集成天线,包括：介质基板,包括第一层、第二层；功放单元,包括功放输入匹配电路、输出端；天线单元,包括电容、接地点、馈电点；所述功放单元的输出端与所述天线单元的馈电点连接；所述功放单元、天线单元设置于所述介质基板第一层,所述天线单元的接地点与所述介质基板的第二层连接；其中,所述功放单元用于,通过所述功放输入匹配电路接收信号,放大所述信号并输出到所述天线单元；所述天线单元的电容用于,调节所述天线单元的阻抗；所述天线单元用于,根据所述电容调节后的阻抗匹配所述功放单元的输出阻抗,同时辐射从所述功放单元接收的信号。本申请通过简化电路,提升了有源功放集成天线的工作效率。(The application discloses integrated antenna of active power amplifier includes: a dielectric substrate comprising a first layer and a second layer; the power amplifier unit comprises a power amplifier input matching circuit and an output end; the antenna unit comprises a capacitor, a grounding point and a feeding point; the output end of the power amplification unit is connected with the feed point of the antenna unit; the power amplifier unit and the antenna unit are arranged on the first layer of the dielectric substrate, and the grounding point of the antenna unit is connected with the second layer of the dielectric substrate; the power amplifier unit is used for receiving signals through the power amplifier input matching circuit, amplifying the signals and outputting the signals to the antenna unit; the capacitor of the antenna unit is used for adjusting the impedance of the antenna unit; the antenna unit is used for matching the output impedance of the power amplification unit according to the impedance adjusted by the capacitor and radiating signals received from the power amplification unit. This application has promoted active power amplifier integrated antenna's work efficiency through simplifying the circuit.)

1. An integrated antenna of an active power amplifier is characterized by comprising:

a dielectric substrate comprising a first layer and a second layer;

the power amplifier unit comprises a power amplifier input matching circuit and an output end;

the antenna unit comprises a capacitor, a grounding point and a feeding point;

the output end of the power amplification unit is connected with the feed point of the antenna unit;

the power amplifier unit and the antenna unit are arranged on the first layer of the dielectric substrate, and the grounding point of the antenna unit is connected with the second layer of the dielectric substrate;

the power amplifier unit is used for receiving signals through the power amplifier input matching circuit, amplifying the signals and outputting the signals to the antenna unit;

the capacitor of the antenna unit is used for adjusting the impedance of the antenna unit;

the antenna unit is used for matching the output impedance of the power amplification unit according to the impedance adjusted by the capacitor and radiating signals received from the power amplification unit.

2. The active power amplifier integrated antenna of claim 1, wherein the antenna unit radiates a received signal through a Planar Inverted F Antenna (PIFA);

the PIFA comprises a radiation branch, a feed branch and a grounding branch;

the radiating branch comprises a radiating end;

the ground branch comprises a ground terminal;

the feed branch comprises a feed point;

the capacitor of the antenna unit comprises a first capacitor and a second capacitor;

the grounding points of the antenna unit comprise a first grounding point and a second grounding point;

the radiation end of the radiation branch is connected with one end of the first capacitor;

the feeding branch is connected with one end of the second capacitor;

the grounding end of the grounding branch is provided with the first grounding point;

the other end of the first capacitor is connected with a ribbon wire;

the other end of the second capacitor is provided with the second grounding point;

the feeding point of the antenna unit is arranged at the feeding point of the feeding branch;

the grounding branch and the feeding branch are respectively and vertically connected to the same side of the radiation branch;

the other end of the grounding branch opposite to the grounding end is connected with the other end of the radiation branch opposite to the radiation end.

3. The integrated antenna of claim 2, wherein the other side of the feeding branch opposite to the grounding branch is connected to one end of the second capacitor.

4. The integrated antenna of claim 2, wherein at least one of the first capacitor and the second capacitor is a variable capacitor.

5. The active power amplifier integrated antenna according to claim 2, wherein the dielectric substrate is provided with a first metal through hole and a second metal through hole;

the first grounding point and the second grounding point are connected with the second layer of the dielectric substrate sequentially through the first metal through hole and the second metal through hole;

and the second layer of the dielectric substrate is a metal covering layer.

6. The active power amplifier integrated antenna of claim 2, wherein the power amplifier unit amplifies the signal through a transistor and outputs the amplified signal to the antenna unit;

the drain electrode of the transistor is connected with the feed point of the antenna unit;

and the grid electrode of the transistor is connected with the power amplifier input matching circuit.

7. The active power amplifier integrated antenna of claim 6, wherein the power amplifier unit further comprises a bias circuit;

the power amplifier input matching circuit comprises a matching unit and a strip conductor;

the ribbon wire includes a first end, a second end;

the first end of the strip lead is connected with the grid electrode of the transistor;

the second end of the strip conductor is connected with the bias circuit and the matching unit.

8. The integrated antenna of claim 7, wherein the bias circuit comprises a strip line, a capacitor;

the ribbon wire includes a first end, a second end;

the first end of the ribbon wire of the bias circuit is connected with the second end of the ribbon wire in the power amplifier input matching circuit;

a second end of the bias circuit ribbon wire is connected to one end of the capacitor;

the other end of the capacitor is connected with the ground;

the second end of the bias circuit ribbon wire is used for bias circuit voltage input.

9. The active power amplifier integrated antenna of claim 7, wherein the matching unit comprises a first strip conductor, a capacitor, a second strip conductor, and an RC parallel circuit;

the first strip conductor and the RC parallel circuit respectively comprise a first end and a second end;

the first strip conductor, the capacitor, the second strip conductor and the RC parallel circuit are sequentially connected in series;

the first end of the first strip conductor is used for receiving signals;

the second end of the first strip-shaped lead is connected with the capacitor;

and the first end and the second end of the RC parallel circuit are sequentially connected with the second ribbon-shaped conducting wire and the second end of the ribbon-shaped conducting wire in the power amplifier input matching circuit.

10. A communication device, comprising:

a signal supply circuit for generating a signal to be transmitted;

the integrated antenna of active power amplifier of any one of claims 1 to 9, configured to process and radiate the signal to be transmitted;

and the communication equipment component carrier is used for carrying the signal supply circuit and the active power amplifier integrated antenna.

Technical Field

The application relates to the technical field of integrated antennas, in particular to an active power amplifier integrated antenna and communication equipment.

Background

Recently, wireless communication network technology has rapidly developed, increasing the demand for low power loss components. Meanwhile, the development of high-speed voice, multimedia and high-speed data puts higher demands on the radio frequency front-end technology. Currently, high power loss of the rf front end becomes a significant cause of short battery life. The power amplifier and the antenna are the largest part of power consumed by the radio frequency front end, and reducing the power consumption of the power amplifier, the antenna and the matching circuit is one of the most attractive research fields. The power amplifier and the antenna are integrated on a module to form the high-efficiency active power amplifier integrated antenna, which is the key for realizing the miniaturization of the radio frequency front-end system.

In the process of realizing the prior art, the inventor finds that the following technical problems exist:

the traditional power amplifier antenna design method only focuses on the power amplifier and the antenna, so that an extra 50-ohm impedance matching connecting line needs to be added between the power amplifier and the antenna, the occupied area of the whole circuit is increased sharply, and the design process is complicated. Additional matching circuits between the power amplifier and the antenna can cause additional losses that affect output power and efficiency.

Therefore, it is necessary to provide a technical solution for a high-efficiency active power amplifier integrated antenna with simplified circuit.

Disclosure of Invention

The embodiment of the application provides a technical scheme of a high-efficiency active power amplifier integrated antenna with a simplified circuit.

The application provides an integrated antenna of active power amplifier, include:

a dielectric substrate comprising a first layer and a second layer;

the power amplifier unit comprises a power amplifier input matching circuit and an output end;

the antenna unit comprises a capacitor, a grounding point and a feeding point;

the output end of the power amplification unit is connected with the feed point of the antenna unit;

the power amplifier unit and the antenna unit are arranged on the first layer of the dielectric substrate, and the grounding point of the antenna unit is connected with the second layer of the dielectric substrate;

the power amplifier unit is used for receiving signals through the power amplifier input matching circuit, amplifying the signals and outputting the signals to the antenna unit;

the capacitor of the antenna unit is used for adjusting the impedance of the antenna unit;

the antenna unit is used for matching the output impedance of the power amplification unit according to the impedance adjusted by the capacitor and radiating signals received from the power amplification unit.

Further, in a preferred embodiment provided by the present application, the antenna unit radiates a received signal through the planar inverted F antenna PIFA;

the PIFA comprises a radiation branch, a feed branch and a grounding branch;

the radiating branch comprises a radiating end;

the ground branch comprises a ground terminal;

the feed branch comprises a feed point;

the capacitor of the antenna unit comprises a first capacitor and a second capacitor;

the grounding points of the antenna unit comprise a first grounding point and a second grounding point;

the radiation end of the radiation branch is connected with one end of the first capacitor;

the feeding branch is connected with one end of the second capacitor;

the grounding end of the grounding branch is provided with the first grounding point;

the other end of the first capacitor is connected with a ribbon wire;

the other end of the second capacitor is provided with the second grounding point;

the feeding point of the antenna unit is arranged at the feeding point of the feeding branch;

the grounding branch and the feeding branch are respectively and vertically connected to the same side of the radiation branch;

the other end of the grounding branch opposite to the grounding end is connected with the other end of the radiation branch opposite to the radiation end.

Further, in a preferred embodiment provided by the present application, the other side of the feeding branch opposite to the grounding branch is connected to one end of the second capacitor.

Further, in a preferred embodiment provided by the present application, at least one of the first capacitor and the second capacitor is a variable capacitor.

Further, in a preferred embodiment provided by the present application, the dielectric substrate is provided with a first metal through hole and a second metal through hole;

the first grounding point and the second grounding point are connected with the second layer of the dielectric substrate sequentially through the first metal through hole and the second metal through hole;

and the second layer of the dielectric substrate is a metal covering layer.

Further, in a preferred embodiment provided by the present application, the power amplifier unit amplifies the signal through a transistor and outputs the amplified signal to the antenna unit;

the drain electrode of the transistor is connected with the feed point of the antenna unit;

and the grid electrode of the transistor is connected with the power amplifier input matching circuit.

Further, in a preferred embodiment provided in the present application, the power amplifier unit further includes a bias circuit;

the power amplifier input matching circuit comprises a matching unit and a strip conductor;

the ribbon wire includes a first end, a second end;

the first end of the strip lead is connected with the grid electrode of the transistor;

the second end of the strip conductor is connected with the bias circuit and the matching unit.

Further, in a preferred embodiment provided herein, the bias circuit includes a strip conductor, a capacitor;

the ribbon wire includes a first end, a second end;

the first end of the ribbon wire of the bias circuit is connected with the second end of the ribbon wire in the power amplifier input matching circuit;

a second end of the bias circuit ribbon wire is connected to one end of the capacitor;

the other end of the capacitor is connected with the ground;

the second end of the bias circuit ribbon wire is used for bias circuit voltage input.

Further, in a preferred embodiment provided by the present application, the matching unit includes a first strip conductor, a capacitor, a second strip conductor, and an RC parallel circuit;

the first strip conductor and the RC parallel circuit respectively comprise a first end and a second end;

the first strip conductor, the capacitor, the second strip conductor and the RC parallel circuit are sequentially connected in series;

the first end of the first strip conductor is used for receiving signals;

the second end of the first strip-shaped lead is connected with the capacitor;

and the first end and the second end of the RC parallel circuit are sequentially connected with the second ribbon-shaped conducting wire and the second end of the ribbon-shaped conducting wire in the power amplifier input matching circuit.

The present application further provides a communication device, comprising:

a signal supply circuit for generating a signal to be transmitted;

the integrated antenna of active power amplifier of any one of claims 1 to 9, configured to process and radiate the signal to be transmitted;

and the communication equipment component carrier is used for carrying the signal supply circuit and the active power amplifier integrated antenna.

The embodiment provided by the application has at least the following technical effects:

by removing the output matching network in the power amplifier unit, the function of the matching circuit is realized by the antenna unit, and the working efficiency of the active power amplifier integrated antenna is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of an active power amplifier integrated antenna provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an antenna unit according to an embodiment of the present application.

100 active power amplifier integrated antenna

11 dielectric substrate

12 power amplifier unit

13 antenna unit

131 first capacitor

132 second capacitance

133 plane inverted-F antenna PIFA

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, an integrated antenna 100 for an active power amplifier provided in an embodiment of the present application includes:

a dielectric substrate 11 including a first layer and a second layer;

the power amplifier unit 12 comprises a power amplifier input matching circuit and an output end;

an antenna unit 13 including a capacitor, a ground point, and a feed point;

the output end of the power amplifier unit 12 is connected with the feed point of the antenna unit 13;

the power amplifier unit 12 and the antenna unit 13 are arranged on the first layer of the dielectric substrate 11, and the ground point of the antenna unit 13 is connected with the second layer of the dielectric substrate 11;

the power amplifier unit 12 is configured to receive a signal through the power amplifier input matching circuit, amplify the signal, and output the amplified signal to the antenna unit 13;

the capacitance of the antenna unit 13 is used for adjusting the impedance of the antenna unit 13;

the antenna unit 13 is configured to match the output impedance of the power amplifier unit 12 according to the impedance adjusted by the capacitor, and to radiate a signal received from the power amplifier unit 12.

It is understood that the dielectric substrate 11 is mainly used as a carrier for the power amplifier unit 12 and the antenna unit 13. An intermediate layer medium with a certain thickness is arranged between the first layer and the second layer of the medium substrate 11. In a specific implementation, the intermediate layer dielectric material of the dielectric substrate 11 here can be Rogers4350b, with dielectric constants and loss tangents of 3.66 and 0.004, respectively. The interlayer dielectric thickness may be 0.762 mm. The length is 30.6mm and the width is 29.7 mm. The first layer of the dielectric substrate 11 is used for carrying the power amplifier unit 12 and the antenna unit 13. The second layer of the dielectric substrate 11 may be used as a ground layer for ground connection between the power amplifier unit 12 and the antenna unit 13. It should be noted that the power amplifier unit 12 has no output matching circuit. The impedance of the antenna unit 13 is adjusted through the capacitor in the antenna unit 13, so that the input impedance of the antenna unit 13 is always matched with the output impedance of the power amplifier within 2GHz-4 GHz. It is obvious that the antenna element 13 here functions not only as a radiation signal but also as a matching circuit. The working efficiency of the active power amplifier integrated antenna can be effectively improved through the simplified design of the circuit.

Further, referring to fig. 2, in a preferred embodiment provided in the present application, the antenna unit 13 radiates the received signal through the planar inverted F antenna PIFA 133;

the PIFA133 includes a radiating branch, a feed branch, and a ground branch;

the radiating branch comprises a radiating end;

the ground branch comprises a ground terminal;

the feed branch comprises a feed point;

the capacitance of the antenna unit 13 includes a first capacitance 131 and a second capacitance 132;

the grounding points of the antenna unit 13 comprise a first grounding point and a second grounding point;

the radiation end of the radiation branch is connected with one end of the first capacitor 131;

the feeding branch is connected with one end of the second capacitor 132;

the grounding end of the grounding branch is provided with the first grounding point;

the other end of the first capacitor 131 is connected with a ribbon wire;

the other end of the second capacitor 132 is set to the second ground point;

the feeding point of the antenna element 13 is arranged at the feeding point of the feeding branch;

the grounding branch and the feeding branch are respectively and vertically connected to the same side of the radiation branch;

the other end of the grounding branch opposite to the grounding end is connected with the other end of the radiation branch opposite to the radiation end.

It can be understood that the planar inverted-F antenna PIFA133 is evolved from a microstrip antenna, has the advantages of miniaturization, easy integration, good directivity, and the like, and is suitable for various miniaturized and ultra-thin mobile communication terminals. In a specific implementation, the planar inverted-F antenna PIFA133 includes a radiating branch for radiating signals, a feed branch for a feed connection, and a ground branch for a ground connection. Preferably, the radiating branch, the feeding branch and the grounding branch may be constructed in the form of microstrip lines, or may be metal layers with specific shapes processed by metal covering layers on a common printed circuit board. Preferably, the radiating branch, the feeding branch and the grounding branch can be all configured to be rectangular. It is obvious that the rectangular radiating branch, the feeding branch and the grounding branch have a first opposite side and a second opposite side which are opposite to each other in pairs. In a specific implementation, the first and second sides of the first pair of sides of the radiation branch may have a side length of 2.3mm, and the first and second sides of the second pair of sides may have a side length of 12.8 mm. We can set the side lengths of the first edge and the second edge of the first opposite side of the feeding branch to be 3.3mm, and the side lengths of the first edge and the second edge of the second opposite side to be 18.9 mm. We can set the side lengths of the first edge and the second edge of the first opposite edge of the grounding branch to be 1.7mm, and the side lengths of the first edge and the second edge of the second opposite edge to be 13.8 mm. Here, the first edge of the first pair of sides of the feeding branch and the first edge of the first pair of sides of the grounding branch are respectively vertically spliced to the second edge of the second pair of sides of the radiating branch. The distance between the two sides of the feeding branch closest to the grounding branch is 1.5 mm. The extension line of the first edge of the first opposite side of the radiation branch coincides with the first edge of the second opposite side of the ground branch. Preferably, the second side of the first pair of sides of the radiating branch is connected to one end of the first capacitor 131, and the other end of the first capacitor 131 is connected to the strip line. The strip conductor here can be rectangular. The rectangle may be set to 2.4mm in width and 4.2mm in height. The height of the rectangle is on one side connected to a first capacitor 131. The first grounding point is arranged inside the second side of the first opposite side of the grounding branch, and the second side of the first opposite side of the feeding branch is used for being directly connected with the output end of the power amplification unit 12. It is obvious that the planar inverted-F antenna PIFA133 is used in combination, and the radiation loss of the active power amplifier integrated antenna 100 can be effectively reduced by adjusting the specific shape and structure of each branch of the planar inverted-F antenna PIFA 133.

Further, in a preferred embodiment provided by the present application, the other side of the feeding branch opposite to the grounding branch is connected to one end of the second capacitor 132.

It can be understood that certain electromagnetic wave noise can be generated during the operation of the electronic components. In some electronic devices, electromagnetic wave noise often has a great influence on the normal operation of the electronic devices, resulting in low operation quality of the electronic devices. In the process of designing the antenna, the position arrangement of each part of the antenna is directly related to the working efficiency of the antenna. In a specific implementation, it is preferable that the ground branch and the second capacitor 132 of the planar inverted-F antenna are distributed on both sides of the feed branch. For better operation of the second capacitor 132, the second capacitor 132 may be located two thirds of the way from the feed branch of the radiating branch. In a specific embodiment, we can set the height of the feeding branch to 18.9mm, and the second capacitor 132 is set at the feeding branch 13.7mm away from the radiating branch. The second capacitor 132 is far from the ground branch and the radiation branch, so that the electromagnetic interference of the second capacitor 132 on the antenna unit 13 can be reduced.

Further, in a preferred embodiment provided herein, at least one of the first capacitor 131 and the second capacitor 132 is a variable capacitor.

It is understood that in a specific implementation, the first capacitor 131 can be a variable capacitor, and the second capacitor 132 can be a fixed value capacitor. It is also possible to use the first capacitor 131 as a fixed value capacitor and the second capacitor 132 as a variable capacitor. We can also arrange that here the first and second capacitors 131, 132 are both variable capacitors. Preferably, when the first capacitor 131 and the second capacitor 132 are both variable capacitors, the capacitance of the first capacitor 131 may be adjusted to be in a range of 0pf to 1pf, and the capacitance of the second capacitor 132 may be adjusted to be in a range of 0pf to 2 pf. It is obvious that the introduction of the variable capacitance allows us to more flexibly adjust the impedance of the planar inverted-F antenna PIFA 133.

Further, in a preferred embodiment provided by the present application, the dielectric substrate 11 is provided with a first metal through hole and a second metal through hole;

the first grounding point and the second grounding point are connected with the second layer of the dielectric substrate 11 sequentially through the first metal through hole and the second metal through hole;

wherein, the second layer of the dielectric substrate 11 is a metal covering layer.

It is understood that, in a specific implementation process, the second layer of the dielectric substrate 11 may serve as a ground layer for the power amplifier unit 12 and the antenna unit 13, and the metal in the metal covering layer may be copper. The metal cover layer of the second layer of the dielectric substrate 11 may be rectangular. The metal material in the first metal via and the second metal via here may also be copper. The first metal through hole and the second metal through hole can be provided with metal covers in the metal through holes in an electroplating mode. It is evident that the copper material has good ductility, electrical and thermal conductivity. The metal through holes arranged in the electroplating manner can reduce electromagnetic interference on the active power amplifier integrated antenna 100.

Further, in a preferred embodiment provided in the present application, the power amplifier unit 12 amplifies the signal through a transistor and outputs the amplified signal to the antenna unit 13;

the drain of the transistor is connected to the feed point of the antenna element 13;

and the grid electrode of the transistor is connected with the power amplifier input matching circuit.

It will be appreciated that transistors may be used for signal amplification. In a specific implementation, the transistor here may be a CREE CGH40010F transistor, with a dc bias of VDS-28V and VGS-3.2V. We set the class AB power amplifier to perform direct impedance matching with the planar inverted F antenna PIFA 133. The drain of our transistor is directly connected to the feeding point of the planar inverted-F antenna PIFA133 in the antenna element 13, and the gate of our transistor is directly connected to the signal output of the power amplifier input matching circuit. It is obvious that the transistor here receives a signal received by the power amplifier input matching circuit through the gate, and then converts and outputs the received signal to the antenna unit 13 through the drain of the transistor. The transistor is introduced for signal transmission, so that the working energy consumption of the active power amplifier integrated antenna 100 can be further reduced.

Further, in a preferred embodiment provided in the present application, the power amplifier unit 12 further includes a bias circuit;

the power amplifier input matching circuit comprises a matching unit and a strip conductor;

the ribbon wire includes a first end, a second end;

the first end of the strip lead is connected with the grid electrode of the transistor;

the second end of the strip conductor is connected with the bias circuit and the matching unit.

It is understood that the bias circuit may cause the amplifier formed of the transistor to amplify the signal voltage without distortion. The strip conductor may be a microstrip line commonly used in a circuit, or may be a metal layer of a specific shape processed by a metal covering layer on a common printed circuit board. Preferably, the shape of the ribbon wire here can be rectangular. The first and second ends of the strip conductor are disposed on two opposite sides of the rectangular strip conductor, respectively. In a preferred embodiment, the length of the side of the rectangular strip conductor where the first end and the second end are located can be set to be 4.6 mm. Obviously, the strip conductor is introduced into the power amplifier unit 12, so that the circuit space occupied by the connection of the matching unit, the bias circuit and the transistor can be effectively reduced.

Further, in a preferred embodiment provided herein, the bias circuit includes a strip conductor, a capacitor;

the ribbon wire includes a first end, a second end;

the first end of the ribbon wire of the bias circuit is connected with the second end of the ribbon wire in the power amplifier input matching circuit;

a second end of the bias circuit ribbon wire is connected to one end of the capacitor;

the other end of the capacitor is connected with the ground;

the second end of the bias circuit ribbon wire is used for bias circuit voltage input.

It will be appreciated that there are many implementations of the bias circuit herein. In a specific implementation, the bias circuit here is formed by a combination of a strip conductor and a capacitor. The strip conductor may be a microstrip line commonly used in a circuit, or may be a metal layer of a specific shape processed by a metal covering layer on a common printed circuit board. Preferably, the shape of the ribbon wire here can be rectangular. The first and second ends of the strip conductor are disposed on two opposite sides of the rectangular strip conductor, respectively. In a preferred embodiment, the length of the side of the rectangular strip conductor where the first end and the second end are located can be set to 0.5 mm. In a specific implementation process, the capacitor here may be a fixed value capacitor according to the working requirement of an actual bias circuit, may also be an adjustable capacitor, or may be a capacitor group formed by combining a plurality of capacitors. It is obvious that the bias circuit can effectively reduce the volume and weight occupied by the bias circuit by introducing the strip conductor.

Further, in a preferred embodiment provided by the present application, the matching unit includes a first strip conductor, a capacitor, a second strip conductor, and an RC parallel circuit;

the first strip conductor and the RC parallel circuit respectively comprise a first end and a second end;

the first strip conductor, the capacitor, the second strip conductor and the RC parallel circuit are sequentially connected in series;

the first end of the first strip conductor is used for receiving signals;

the second end of the first strip-shaped lead is connected with the capacitor;

and the first end and the second end of the RC parallel circuit are sequentially connected with the second ribbon-shaped conducting wire and the second end of the ribbon-shaped conducting wire in the power amplifier input matching circuit.

It is understood that the strip line in the matching unit may be a microstrip line commonly used in circuits, or may be a metal layer with a specific shape processed by a metal covering layer on a common printed circuit board. In a specific implementation, the first strip conductor may have a rectangular shape. The first end and the second end of the first strip-shaped conducting wire are respectively arranged on two opposite edges of the first strip-shaped conducting wire. Preferably, the length of the side where the first end and the second end of the first strip conductor are located is 1.7mm, and the length of the other two sides is 3.6 mm. In a specific implementation process, the capacitor here may be a fixed value capacitor, or an adjustable capacitor with an adjustable capacitance value. Preferably, when a fixed value capacitor is used, a capacitor with a capacitance of 8.1pF can be used. In a specific implementation, the RC parallel circuit here is formed by connecting a resistor and a capacitor in parallel. It is understood that the resistor and the capacitor may be adjustable, fixed, or a combination of adjustable and fixed. It should be noted that the resistor may be a resistor group formed by combining a plurality of resistors, and the capacitor may also be a capacitor group formed by combining a plurality of capacitors. Preferably, the resistor in the RC parallel circuit can be a resistor with a resistance value of 70 Ω, and the capacitor can be a capacitor with a capacitance value of 13 pF. It should be noted that the second strip line herein may be a single strip line, or may be a strip line group formed by combining a plurality of strip lines. In a specific implementation, the second conductor track here can be obtained by connecting a plurality of conductor tracks in series. Preferably, the second strip line here includes a first strip line, a second strip line, a third strip line, and a fourth strip line. The first sub strip-shaped conductive line, the second sub strip-shaped conductive line, the third sub strip-shaped conductive line and the fourth sub strip-shaped conductive line may be all arranged in a rectangle and all include a first opposite side and a second opposite side. The first sub-strip-shaped conducting wire, the second sub-strip-shaped conducting wire, the third sub-strip-shaped conducting wire and the fourth sub-strip-shaped conducting wire are sequentially connected in series through respective first opposite sides. One end of the first opposite side of the first sub-strip-shaped conducting wire is connected with the capacitor in the matching circuit, and one end of the first opposite side of the fourth sub-strip-shaped conducting wire is connected with the first end of the RC parallel circuit. In a specific implementation process, the side lengths of the first opposite sides of the first sub-strip-shaped conducting wire, the second sub-strip-shaped conducting wire, the third sub-strip-shaped conducting wire and the fourth sub-strip-shaped conducting wire may be 3.3mm, 4mm and 8.3mm in sequence, and the side lengths of the second opposite sides may be 1 mm. It is obvious that the volume and weight occupied by the matching circuit can be effectively reduced by introducing a large number of strip conductors.

Based on the same idea, the active power amplifier integrated antenna 100 provided in the embodiment of the present application further provides a communication device including the active power amplifier integrated antenna 100.

A communication device, comprising:

a signal supply circuit for generating a signal to be transmitted;

the active power amplifier integrated antenna 100 of any of claims 1 to 9, configured to process and radiate the signal to be transmitted;

and the communication equipment component carrier is used for carrying the signal supply circuit and the active power amplifier integrated antenna 100.

It is understood that the communication device herein includes a mobile communication terminal that we use at ordinary times. In a specific implementation process, the signal supply circuit may be a circuit module used in the communication device to generate an original signal to be transmitted, or may be a circuit module used in the communication device to receive and forward other signals to be transmitted in the space. The carrier of the communication device component can be a shell of a general mobile communication terminal, and can also be a support for supporting a functional component in some communication devices. Obviously, the communication device herein effectively saves the space of the communication device by combining with the active power amplifier integrated antenna 100, and at the same time, improves the working efficiency of the communication device.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.