Feed Amplifier

Abstract

The present invention relates to a feeding amplifier, comprising a power supply module, a power supply separation module, a power supply feed-in module, a transceiver duplexer 1, a transceiver duplexer 2, a PA power amplifier and an LNA low noise amplifier, wherein the power supply separation module is connected to the power supply module, the power supply module is connected to the PA power amplifier and the LNA low noise amplifier and the power supply feed-in module, the PA power amplifier and the LNA low noise amplifier are connected in parallel and are both connected to the transceiver duplexer 1 and the transceiver duplexer 2, the transceiver duplexer 1 is connected to the power supply separation module, and the transceiver duplexer 2 is connected to the power supply feed-in module. The feeding amplifier of the present invention does not need to take power on site when the power supply is provided by the upper level line, thereby providing system stability; the output line can be powered, thereby effectively solving the power supply problem of various devices integrated by the line; since the output end line is powered, the line power supply detection system can be used to timely detect whether the working state of each device is normal.

Description

Technical Field

[0001] The invention relates to the field of amplifiers, and in particular to a feeding amplifier. Background Art

[0002] At present, the amplifiers and the next-level line equipment used in wireless communication systems are all powered by on-site power supply. There are the following problems with on-site power supply: a separate power supply device is required at the installation site, which makes the system costly; due to restrictions on on-site conditions, it cannot be connected to the UPS power supply in the computer room, which will cause local signal failure due to power outages at the site; existing amplifiers do not have the function of providing power supply to the output line, which greatly limits the architecture of the line equipment and the integration of IoT devices. Summary of the invention

[0003] The object of the present invention is to provide a feeding amplifier to solve the problem that the amplifier and its next-level line equipment in the prior art use on-site power supply, resulting in high system cost and local signal loss caused by on-site power interruption.

[0004] The present invention provides a feeding amplifier, comprising a power supply module, a power supply separation module, a power supply feeding module, a first transceiver duplexer, a second transceiver duplexer, a PA power amplifier and an LNA low noise amplifier, wherein the output end of the power supply separation module is connected to the input end of the power supply module, the output end of the power supply module is connected to the PA power amplifier, the LNA low noise amplifier and the power supply feeding module, and is used to supply power to the PA power amplifier, the LNA low noise amplifier and the power supply feeding module, the PA power amplifier and the LNA low noise amplifier are connected in parallel and are both connected to the first transceiver duplexer and the second transceiver duplexer, the input end of the first transceiver duplexer is connected to the power supply separation module, and the output end of the second transceiver duplexer is connected to the power supply feeding module.

[0005] Furthermore, the power supply module includes capacitors C11, C12, C13, diodes D1, D2, D3, D4, inductor L1 and a voltage stabilizing circuit. The circuit formed by the inductor L1 and capacitor C12 connected in series is connected in parallel with the capacitor C11 to form a power supply noise suppression circuit. The two ends of the power supply noise suppression circuit are connected to the input ends of the bridge rectifier circuit composed of diodes D1, D2, D3, and D4. One output end of the bridge rectifier circuit is grounded, and the other output end is connected to the capacitor C13 and the voltage stabilizing circuit, and power is supplied to the outside through the voltage stabilizing circuit. The capacitor C13 is a rectifier filter capacitor, and the other end is grounded.

[0006] Furthermore, the power separation module includes capacitors C21, C22, and C23, and inductors L21 and L22. The output end of the inductor L21 is connected to capacitors C21, C23, and inductor L22. The output end of the capacitor C23 outputs an RF signal. The output end of the inductor L22 is divided into two paths, one path is connected to capacitor C22, and the other path is connected to the input end of the power module for outputting power. The capacitors C21 and C22 are grounded. The inductor L21 and capacitor C21 form a power wave suppression circuit. The inductor L22 and capacitor C22 form a power output filter. The capacitor C23 is a power isolation capacitor that isolates the power fed from the isolation line.

[0007] Furthermore, the transceiver duplexer 1 and the transceiver duplexer 2 are both composed of a TX bandpass filter and an RX bandpass filter, one end of the TX bandpass filter and the RX bandpass filter are connected to form an ANT port, the ANT port of the transceiver duplexer 1 is connected to the output end of the power separation module capacitor C23, the TX bandpass filter is connected to the input end of the PA power amplifier, the RX bandpass filter is connected to the output end of the LNA low noise amplifier, the output end of the PA power amplifier is connected to the TX bandpass filter of the transceiver duplexer 2, the input end of the LNA low noise amplifier is connected to the RX bandpass filter of the transceiver duplexer 2, and the ANT port of the transceiver duplexer 2 is connected to the signal input end of the power feed module.

[0008] Furthermore, the power feeding module includes capacitors C31, C32, C33, and C34, and inductors L31 and L32. The input end of the capacitor C31 is connected to the ANT port of the second transceiver duplexer for inputting RF signals. The output end of the capacitor C31 is connected to the inductor L31 and the capacitor C32. The capacitors C31, C32, and the inductor L31 form a power decoupling circuit for isolating the fed power supply. The input end of the inductor L32 is connected to the power output end of the power module to input the power supply. The input end of the inductor L32 is also connected to the capacitor C34. The output end of the inductor L32 is connected to the capacitor C33. The output end of the inductor L32 is connected to the output end of the capacitor C32 to form an output port for outputting RF signals and power. The inductor L31 and the capacitors C33 and C34 are grounded.

[0009] Furthermore, the power module is also connected to a power supply, and the power supply is an AC power supply, a DC power supply, a pulse power supply, a photoelectric power supply, a wind power supply, a wireless charging power supply or a radio frequency power supply.

[0010] The beneficial effects of adopting the above technical solution of the present invention are:

[0011] The feeding amplifier of the present invention does not need to take power on site when the power is provided by the upper level line, thereby improving the stability of the system; the output line can be powered, effectively solving the power supply problem of various devices integrated into the line; due to the output end line feeding, the line power supply detection system can be used to timely detect whether the working status of each device is normal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the feeding amplifier of the present invention;

[0013] Figure 2 It is a schematic diagram of the power module structure;

[0014] Figure 3 It is a schematic diagram of the power separation module structure;

[0015] Figure 4 This is a schematic diagram of the power supply feed module structure;

[0016] Figure 5 A schematic diagram of the specific connection relationship of the feed amplifier of the present invention;

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1-power module, 2-power separation module, 3-power feeding module, 4-transceiver duplexer 1, 5-transceiver duplexer 2, 6-PA power amplifier, 7-LNA low noise amplifier, 8-power supply. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0020] like Figure 1-5 As shown, the present invention provides a feeding amplifier, including a power supply module 1, a power supply separation module 2, a power supply feeding module 3, a transceiver duplexer 1 4, a transceiver duplexer 2 5, a PA power amplifier 6 and an LNA low noise amplifier 7, wherein the output end of the power supply separation module 2 is connected to the input end of the power supply module 1, and the output end of the power supply module 1 is connected to the PA power amplifier 6, the LNA low noise amplifier 7 and the power supply feeding module 3, so as to supply power to the PA power amplifier 6, the LNA low noise amplifier 7 and the power supply feeding module 3, the PA power amplifier 6 and the LNA low noise amplifier 7 are connected in parallel and are both connected to the transceiver duplexer 1 4 and the transceiver duplexer 2 5, the input end of the transceiver duplexer 1 4 is connected to the power supply separation module 2, and the output end of the transceiver duplexer 2 5 is connected to the power supply feeding module 3.

[0021] The power module 1 includes capacitors C11, C12, C13, diodes D1, D2, D3, D4, an inductor L1 and a voltage stabilizing circuit. The circuit composed of the inductor L1 and the capacitor C12 connected in series is connected in parallel with the capacitor C11 to form a power noise suppression circuit. Both ends of the power noise suppression circuit are connected to the input ends of the bridge rectifier circuit composed of diodes D1, D2, D3, and D4. One output end of the bridge rectifier circuit is grounded, and the other output end is connected to the capacitor C13 and the voltage stabilizing circuit, and power is supplied to the outside through the voltage stabilizing circuit. The capacitor C13 is a rectifier filter capacitor, and the other end is grounded.

[0022] The power separation module includes capacitors C21, C22, and C23, and inductors L21 and L22. The output end of the inductor L21 is connected to the capacitors C21, C23, and the inductor L22. The output end of the capacitor C23 outputs an RF signal. The output end of the inductor L22 is divided into two paths, one path is connected to the capacitor C22, and the other path is connected to the input end of the power module for outputting power. The capacitors C21 and C22 are grounded. The inductor L21 and the capacitor C21 form a power wave suppression circuit. The inductor L22 and the capacitor C22 form a power output filter. The capacitor C23 is a power isolation capacitor that isolates the power fed from the isolation line.

[0023] The transceiver duplexer 1 and the transceiver duplexer 2 are both composed of a TX bandpass filter and an RX bandpass filter. One end of the TX bandpass filter and the RX bandpass filter are connected to form an ANT port. The ANT port of the transceiver duplexer 1 is connected to the output end of the power separation module capacitor C23, the TX bandpass filter is connected to the input end of the PA power amplifier, the RX bandpass filter is connected to the output end of the LNA low noise amplifier, the output end of the PA power amplifier is connected to the TX bandpass filter of the transceiver duplexer 2, the input end of the LNA low noise amplifier is connected to the RX bandpass filter of the transceiver duplexer 2, and the ANT port of the transceiver duplexer 2 is connected to the signal input end of the power feed module.

[0024] The power feeding module includes capacitors C31, C32, C33, and C34, and inductors L31 and L32. The input end of the capacitor C31 is connected to the ANT port of the second transceiver duplexer for inputting RF signals. The output end of the capacitor C31 is connected to the inductor L31 and the capacitor C32. The capacitors C31, C32, and the inductor L31 form a power decoupling circuit for isolating the fed power supply. The input end of the inductor L32 is connected to the power output end of the power module to input the power supply. The input end of the inductor L32 is also connected to the capacitor C34. The output end of the inductor L32 is connected to the capacitor C33. The output end of the inductor L32 is connected to the output end of the capacitor C32 to form an output port for outputting RF signals and power. The inductor L31 and the capacitors C33 and C34 are grounded.

[0025] In this embodiment, the input end of the power separation module 2 is connected to the upper level circuit, and the upper level circuit transmits the RF signal while transmitting the power supply. The RF signal and the power supply are input to the input end of the inductor L21, and the RF signal is output at the output end of the capacitor C23 after passing through the power separation module, and the power supply is output at the output end of the inductor L22; the power supply is input to the input end of the power supply module, passes through the power supply noise suppression circuit and the bridge rectifier circuit, and finally the rectified and filtered DC voltage is stabilized at the working voltage value required by the amplifier through the voltage stabilizing circuit, and then the power supply is output to power the internal devices of the amplifier, and at the same time, the power supply is output to the input end of the inductor L32 of the power feed module 3; the RF signal enters the ANT port of the dual-transmit duplexer 1, and for the TX signal and the RX signal, the two are amplified by the PA power amplifier and the LNA low noise amplifier respectively. After the ANT port receives the RX signal, the RX end The RX bandpass filter connected to the TX port has no obstruction for the RX signal, but the TX bandpass filter connected to the TX port almost completely blocks the RX signal from passing through, so that the RX signal will not interfere with the TX circuit; on the contrary, the TX signal output by the PA power amplifier is from the TX port of the transceiver duplexer 2, and the TX bandpass filter connected to the TX port has no obstruction for the TX output power signal, but the RX bandpass filter connected to the RX port also almost completely blocks the TX output signal, so that the TX output power signal will not damage the RX circuit, nor will it suppress the weak RX signal; the RF signal finally enters the input end of the capacitor C31 of the power feeding module 3, the RF signal and the power are combined in the power feeding module, and the power feeding module 3 synthesizes the power supply + RF signal mode again to provide the required RF signal and power supply for the next level line equipment.

[0026] Preferably, the power module 1 is also connected to a power supply 8. When the upper-level circuit cannot provide power, the power supply is supplied by the on-site power supply. The power supply 8 is an AC power supply, a DC power supply, a pulse power supply, a photoelectric power supply, a wind power supply, a wireless charging power supply or a radio frequency power supply. Since the diodes D1, D2, D3, and D4 form a bridge rectifier circuit, there is no distinction between the positive and negative poles of the power input interface. Therefore, whether the input is DC or negative pulse and alternating wireless radio frequency power can be used as power input.

[0027] In summary, the feeding amplifier of the present invention does not need to take power on site when the power is provided by the upper-level circuit, thereby improving the stability of the system; it can power the output line, effectively solving the power supply problem of various devices integrated in the line; due to the output end line feeding, the line power supply detection system can be used to timely detect whether the working status of each device is normal.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A feeding amplifier, characterized in that: It includes a power module, a power separation module, a power feeding module, a first transceiver duplexer, a second transceiver duplexer, a power amplifier and a low noise amplifier, wherein: The power supply module comprises a first input end and at least one output end; the first input end is connected to the first output end of the power separation module; the at least one output end is respectively connected to the power amplifier, the low noise amplifier and the power feed module to supply power to the power amplifier, the low noise amplifier and the power feed module; The power separation module comprises an input end, a first output end, and a second output end; the input end is connected to the upper level circuit to receive the radio frequency signal and the power supply; the first output end is connected to the first input end of the power module to output the power supply to the power module; the second output end is connected to the input end of the first transceiver duplexer to output the radio frequency signal to the first transceiver duplexer; The power feeding module comprises a first input end and a second input end; the first input end is connected to an output end of the power module to receive power; the second input end is connected to the second transceiver duplexer to receive a radio frequency signal from the second transceiver duplexer; The first transceiver duplexer includes an input end connected to the second output end of the power separation module to receive a radio frequency signal; The second transceiver duplexer comprises an output end connected to the second input end of the power feed module and outputting a radio frequency signal to the power feed module; The power amplifier and the low noise amplifier are connected in parallel, and are both connected to the first transceiver duplexer and the second transceiver duplexer.

2. The feed amplifier according to claim 1, characterized in that: The power module further comprises: A power supply noise suppression circuit, comprising a first inductor (L1), a first capacitor (C11) and a second capacitor (C12), wherein the first inductor (L1) and the second capacitor (C12) are connected in series and then connected in parallel with the first capacitor (C11); two ends of the power supply noise suppression circuit are connected to an input end of a bridge rectifier circuit; A bridge rectifier circuit is composed of diodes (D1, D2, D3, D4); one end of the output end of the bridge rectifier circuit is grounded, and the other end is connected to a rectifier filter capacitor (C13) and a voltage stabilizing circuit; A voltage stabilizing circuit, which stabilizes the voltage of a power source and then supplies power to an external source; and A rectifier filter capacitor (C13) has one end connected to the bridge rectifier circuit and the other end grounded.

3. The feeding amplifier according to claim 1 or 2, characterized in that: The power separation module further comprises: A power wave suppression circuit comprises a second inductor (L21) and a third capacitor (C21); one end of the second inductor (L21) is connected to an input end of a power separation module to receive a radio frequency signal and a power supply, and the other end is respectively connected to the third capacitor (C21), an isolation capacitor (C23) and the second inductor (L21); one end of the third capacitor (C21) is grounded; A power output filter circuit, comprising a third inductor (L22) and a fourth capacitor (C22); one end of the third inductor (L22) is connected to the second inductor (L21), the third capacitor (C21) and the isolation capacitor (C23), and the other end is connected to the fourth capacitor (C22) and the first output end of the power separation module, outputting power to the first input end of the power module; one end of the fourth capacitor (C22) is grounded; and, The power isolation capacitor (C23) has one end connected to the second inductor (L21), the third capacitor (C21) and the third inductor (L22), and the other end connected to the second output end of the power separation module to output a radio frequency signal to the first transceiver duplexer.

4. The feeding amplifier according to claim 1 or 2, characterized in that: The power feed module further comprises: A power decoupling circuit, comprising a fifth capacitor (C31), a sixth capacitor (C32) and a fourth inductor (L31); wherein one end of the fifth capacitor (C31) is connected to the first input end of the power feed module, and the other end is connected to the fourth inductor (L31) and the sixth capacitor (C32); one end of the sixth capacitor (C32) is connected to the fifth capacitor (C31) and the fourth inductor (L31), and the other end is connected to the fifth inductor (L32), the seventh capacitor (C33) and the output port of the power feed module; one end of the fourth inductor (L31) is connected to the fifth capacitor (C31) and the sixth capacitor (C32), and the other end is grounded; the power decoupling circuit is used to isolate the fed power supply; The output end is connected to the first input end of the power feed module via the fifth inductor (L32); one end of the fifth inductor (L32) is connected to the first input end of the power feed module and the eighth capacitor (C34), and the other end is connected to the output end of the power feed module and the seventh capacitor (C33); one end of the seventh capacitor (C33) and the eighth capacitor (C34) are grounded.

5. The feeding amplifier according to claim 1 or 2, characterized in that: The first transceiver duplexer further includes a first TX bandpass filter and a first RX bandpass filter; an input end of the first transceiver duplexer is connected to one end of the first TX bandpass filter and one end of the first RX bandpass filter; the other end of the first TX bandpass filter is connected to the input end of the power amplifier; the other end of the first RX bandpass filter is connected to the output end of the low noise amplifier; The second transceiver duplexer also includes a second TX bandpass filter and a second RX bandpass filter; one end of the output end of the second transceiver duplexer is respectively connected to one end of the second TX bandpass filter and one end of the second RX bandpass filter; the other end of the second TX bandpass filter is connected to the output end of the power amplifier; the other end of the second RX bandpass filter is connected to the input end of the low noise amplifier.

6. The feeding amplifier according to claim 1 or 2, characterized in that: The power module further includes: The second input terminal is connected to a power supply, and the power supply is an AC power supply, a DC power supply, a pulse power supply, a photoelectric power supply, a wind power supply, a wireless charging power supply or a radio frequency power supply.

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