阅读说明：本技术 一种新型平面集成无线中继器 (Novel planar integrated wireless repeater ) 是由 张云峰 任欢 赵晨龙 于 2019-11-19 设计创作，主要内容包括：本发明公开了一种新型平面集成无线中继器包括一个低噪声功率放大器和两个微带贴片天线；所述微带贴片天线和低噪声功率放大器平面集成于同一PCB板上；两个微带贴片天线对称分布于低噪声功率放大器两侧并与低噪声功率放大器连接；微带贴片天线和低噪声功率放大器之间设满过孔。本发明实现了微带贴片天线与低噪声功率放大器的一体化，使得该设计可以完成WLAN信号的放大，增强信号的功率；本发明的微带贴片天线增益2dB、带宽100M、中心频率2.4到2.5GHz、线极化的极化方式；本发明的低噪声功率放大器噪声系数小于2dB、带内增益大于15dB、驻波比小于1.5、反向电压增益小于?10dB大于?30dB，相对稳定。(The invention discloses a novel planar integrated wireless repeater, which comprises a low-noise power amplifier and two microstrip patch antennas, wherein the two microstrip patch antennas are connected with the low-noise power amplifier; the microstrip patch antenna and the low-noise power amplifier are integrated on the same PCB plane; the two microstrip patch antennas are symmetrically distributed on two sides of the low-noise power amplifier and connected with the low-noise power amplifier; and a full through hole is arranged between the microstrip patch antenna and the low-noise power amplifier. The invention realizes the integration of the microstrip patch antenna and the low-noise power amplifier, so that the design can finish the amplification of WLAN signals and enhance the power of the signals; the microstrip patch antenna has the advantages of 2dB gain, 100M bandwidth, 2.4 to 2.5GHz center frequency and linear polarization mode; the low-noise power amplifier has the advantages that the noise coefficient is less than 2dB, the in-band gain is greater than 15dB, the standing-wave ratio is less than 1.5, the reverse voltage gain is less than-10 dB and greater than-30 dB, and the low-noise power amplifier is relatively stable.)

1. A novel planar integrated wireless repeater is characterized in that:

the low-noise power amplifier comprises a low-noise power amplifier and two microstrip patch antennas;

the microstrip patch antenna and the low-noise power amplifier are integrated on the same PCB plane;

the two microstrip patch antennas are symmetrically distributed on two sides of the low-noise power amplifier and connected with the low-noise power amplifier;

and a full through hole is arranged between the microstrip patch antenna and the low-noise power amplifier.

2. A novel planar integrated wireless repeater according to claim 1, wherein:

the microstrip patch antenna has the advantages of 2dB gain, 100M bandwidth, 2.4 to 2.5GHz center frequency and linear polarization mode;

the noise coefficient of the low-noise power amplifier is less than 2dB, the in-band gain is greater than 15dB, the standing-wave ratio is less than 1.5, and the reverse voltage gain is less than-10 dB and greater than-30 dB.

3. A novel planar integrated wireless repeater according to claim 1, wherein:

the microstrip patch antenna comprises a rectangular antenna main body, a feeder line and a bonding pad;

the rectangular antenna main body is connected with the welding disc through a feeder line;

the bonding pad is connected with a low noise power amplifier.

4. A novel planar integrated wireless repeater according to claim 3, wherein:

the rectangular antenna main body is a fr4 dielectric plate with the dielectric constant of 4.4, the thickness of 1.6mm and the copper thickness of 25 um;

the size of the rectangular antenna main body is that the length L is 30.83mm, and the width W is 37.3 mm;

the feeder line length is 3.06 mm.

5. A novel planar integrated wireless repeater according to claim 1, wherein:

the low noise power amplifier comprises an input matching circuit, an output matching circuit, a sp _ hp _ AT-41511_2_19950125BJT and a direct current bias circuit;

the input matching circuit and the output matching circuit are symmetrically distributed on two sides of the direct current bias circuit;

the input matching circuit ground hole end, the output matching circuit ground hole end and the resistance end of the direct current bias circuit are all connected with the sp _ hp _ AT-41511_2_19950125 BJT;

and the input matching circuit pad end and the output matching circuit pad end are respectively connected with a microstrip patch antenna.

6. The novel planar integrated wireless repeater according to claim 5, wherein:

the input matching circuit and the output matching circuit respectively comprise a bonding pad, a series capacitor and a reserved grounding hole;

the bonding pad is connected with the reserved grounding hole through a series capacitor;

the bonding pad is connected with the microstrip patch antenna.

7. The novel planar integrated wireless repeater according to claim 5, wherein:

the sp _ hp _ AT-41511_2_19950125BJT comprises a resistance module, a patch inductor and a reserved direct-current power supply connection module;

the resistance module is connected with one end of a reserved direct-current power supply connection module through a patch inductor;

and the other end of the reserved direct-current power supply connection module is connected with a reserved grounding hole.

8. A novel planar integrated wireless repeater according to claim 7, wherein:

the resistance module comprises a resistor R₁Resistance R₂Resistance R₃Resistance R₄Resistance R₅Resistance R₆Resistance R₇And a resistance R₈Resistance R₁One end of the resistor R is connected with a reserved grounding hole of the input matching circuit₁Another end of the resistor R is connected with a resistor R₂And a resistance R₃One terminal of (1), resistance R₂And a resistance R₃Another end of the resistor R is connected with a resistor R₄And a resistance R₅One terminal of (1), resistance R₄And a resistance R₅Another end of the resistor R is connected with a resistor R₆One terminal of (1), resistance R₆Another end of the resistor R is connected with a resistor R₇One end of (1), a chip inductor and a resistor R₇Another end of the resistor R is connected with a resistor R₈One terminal of (1), resistance R₈The other end of the output matching circuit is connected with a reserved grounding hole of the output matching circuit.

Technical Field

The invention belongs to the technical field of microstrip patch antennas, and particularly relates to a novel planar integrated wireless repeater.

Background

The microstrip patch antenna has attracted extensive attention and research since the successful development in the early 70 s of the 20 th century, and various forms of microstrip patch antennas have been widely applied in the fields of satellite communication, Doppler radar, other missile telemetry technologies, bioengineering and the like. Microstrip patch antennas have irreplaceable positions, particularly in terms of wireless communications and remote control.

With the development of wireless communication technology, especially the popularization of mobile network devices in recent years, people have higher and higher requirements on broadband antennas. The method mainly shows small volume, wide receiving range, high efficiency, high data processing speed and the like. The microstrip patch antenna has the characteristics of small volume, light weight and low profile, and is easy to integrate with active devices and microwave circuits into a unified assembly, so that the microstrip patch antenna is suitable for mass production.

However, since the power of the microstrip patch antenna is small, the signal radiation range is small. Further, since the signal is accompanied by energy loss during propagation, it is difficult to receive the signal outside a certain range. Even if the distance from the antenna is close enough, it may be affected by the obstruction and a weak signal may be received. It is important to amplify the power of the microstrip patch antenna.

Low noise amplifiers are commonly used as high or intermediate frequency preamplifiers for various types of radio receivers, as well as amplification circuits for high sensitivity electronic detection devices. In the case of amplifying a weak signal, the noise of the amplifier itself may interfere with the signal seriously, and it is desirable to reduce the noise to improve the signal-to-noise ratio of the output.

With the development of miniaturization and integration of electronic devices, higher and higher demands are made on miniaturization of communication equipment. But miniaturization, integration and equipment performance are restricted, so that the design of the amplification microstrip patch antenna which has the characteristics of good performance and miniaturization integration has great research prospect and practical significance.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a novel planar integrated wireless repeater integrating receiving, amplifying and transmitting the wlan signal into a whole, aiming at the defects of the prior art.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a novel plane integrated wireless repeater comprises a low-noise power amplifier and two microstrip patch antennas;

the microstrip patch antenna and the low-noise power amplifier are integrated on the same PCB plane;

the two microstrip patch antennas are symmetrically distributed on two sides of the low-noise power amplifier and connected with the low-noise power amplifier;

and a through hole is fully arranged between the microstrip patch antenna and the low-noise power amplifier, so that the interference between the microstrip patch antenna and the low-noise power amplifier is reduced.

In order to optimize the technical scheme, the specific measures adopted further comprise:

the microstrip patch antenna has the advantages of 2dB gain, 100M bandwidth, 2.4 to 2.5GHz center frequency and linear polarization mode;

the noise coefficient of the low-noise power amplifier is less than 2dB, the in-band gain is greater than 15dB, the standing-wave ratio is less than 1.5, and the reverse voltage gain is less than-10 dB and greater than-30 dB.

The microstrip patch antenna comprises a rectangular antenna main body, a feeder line and a bonding pad;

the rectangular antenna main body is connected with the welding disc through a feeder line;

the bonding pad is connected with a low noise power amplifier.

The rectangular antenna main body is a fr4 dielectric plate with the dielectric constant of 4.4, the thickness of 1.6mm and the copper thickness of 25 um;

the size of the rectangular antenna main body is that the length L is 30.83mm, and the width W is 37.3 mm;

the feeder line length is 3.06 mm.

The low noise power amplifier comprises an input matching circuit, an output matching circuit, an sp _ hp _ AT-41511_2_19950125BJT and a direct current bias circuit;

the input matching circuit and the output matching circuit are symmetrically distributed on two sides of the direct current bias circuit;

the input matching circuit ground hole end, the output matching circuit ground hole end and the resistance end of the direct current bias circuit are all connected with the sp _ hp _ AT-41511_2_19950125 BJT;

and the input matching circuit pad end and the output matching circuit pad end are respectively connected with a microstrip patch antenna.

The input matching circuit and the output matching circuit respectively comprise a bonding pad, a series capacitor and a reserved grounding hole;

the bonding pad is connected with the reserved grounding hole through a series capacitor;

the bonding pad is connected with the microstrip patch antenna.

The sp _ hp _ AT-41511_2_19950125BJT comprises a resistance module, a patch inductor and a reserved direct-current power supply connection module;

the resistance module is connected with one end of a reserved direct-current power supply connection module through a patch inductor;

and the other end of the reserved direct-current power supply connection module is connected with a reserved grounding hole.

The resistance module comprises a resistor R₁Resistance R₂Resistance R₃Resistance R₄Resistance R₅Resistance R₆Resistance R₇And a resistance R₈Resistance R₁One end of the resistor R is connected with a reserved grounding hole of the input matching circuit₁Another end of the resistor R is connected with a resistor R₂And a resistance R₃One terminal of (1), resistance R₂And a resistance R₃Another end of the resistor R is connected with a resistor R₄And a resistance R₅One terminal of (1), resistance R₄And a resistance R₅Another end of the resistor R is connected with a resistor R₆One terminal of (1), resistance R₆Another end of the resistor R is connected with a resistor R₇One end of (1), a chip inductor and a resistor R₇Another end of the resistor R is connected with a resistor R₈One terminal of (1), resistance R₈The other end of the output matching circuit is connected with a reserved grounding hole of the output matching circuit.

The invention has the following beneficial effects:

1. the invention realizes the integration of the microstrip patch antenna and the low-noise power amplifier, so that the design can finish the amplification of WLAN signals and enhance the power of the signals;

2. the microstrip patch antenna has the advantages of 2dB gain, 100M bandwidth, 2.4 to 2.5GHz central frequency and circular polarization mode;

3. the low-noise power amplifier has the advantages that the noise coefficient is less than 2dB, the in-band gain is greater than 15dB, the standing-wave ratio is less than 1.5, the reverse voltage gain is less than-10 dB and greater than-30 dB, and the low-noise power amplifier is relatively stable.

Drawings

Fig. 1 is a schematic structural diagram of a microstrip patch antenna of the present invention;

FIG. 2 is a schematic diagram of the low noise power amplifier of the present invention;

fig. 3 is a schematic structural diagram of a novel planar integrated wireless repeater of the present invention;

fig. 4 is a schematic diagram of the combined punching of the microstrip patch antenna and the low noise power amplifier of the present invention.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in fig. 3 and 4, the novel planar integrated wireless repeater of the present invention includes a low noise power amplifier and two microstrip patch antennas;

the microstrip patch antenna and the low-noise power amplifier are integrated on the same PCB plane;

the two microstrip patch antennas are symmetrically distributed on two sides of the low-noise power amplifier and connected with the low-noise power amplifier;

and a full through hole is arranged between the microstrip patch antenna and the low-noise power amplifier.

As shown in fig. 1, in an embodiment, the microstrip patch antenna includes a rectangular antenna body, a feed line, and a pad;

the rectangular antenna main body is connected with the welding disc through a feeder line;

the bonding pad is connected with a low noise power amplifier.

The microstrip patch antenna has the advantages of 2dB gain, 100M bandwidth, 2.4 to 2.5GHz center frequency and linear polarization mode;

the noise coefficient of the low-noise power amplifier is less than 2dB, the in-band gain is greater than 15dB, the standing-wave ratio is less than 1.5, and the reverse voltage gain is less than-10 dB and greater than-30 dB.

The rectangular antenna main body is a fr4 dielectric plate with the dielectric constant of 4.4, the thickness of 1.6mm and the copper thickness of 25 um;

the size of the rectangular antenna main body is that the length L is 30.83mm, and the width W is 37.3 mm;

the feeder line length is 3.06 mm.

As shown in fig. 2, the low noise power amplifier includes an input matching circuit, an output matching circuit, a sp _ hp _ AT-41511_2_19950125BJT, and a dc bias circuit;

the input matching circuit and the output matching circuit are symmetrically distributed on two sides of the direct current bias circuit;

the input matching circuit ground hole end, the output matching circuit ground hole end and the resistance end of the direct current bias circuit are all connected with the sp _ hp _ AT-41511_2_19950125 BJT;

and the input matching circuit pad end and the output matching circuit pad end are respectively connected with a microstrip patch antenna.