CN212588306U

CN212588306U - Feed amplifier

Info

Publication number: CN212588306U
Application number: CN202020441986.7U
Authority: CN
Inventors: 周德宏
Original assignee: Suzhou Bangyao Electronic Technology Co ltd
Current assignee: Suzhou Bangyao Electronic Technology Co ltd
Priority date: 2019-07-18
Filing date: 2020-03-31
Publication date: 2021-02-23
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to a feed amplifier, including power module, power separation module, power feed-in module, receiving and dispatching duplexer I, receiving and dispatching duplexer II, PA power amplifier and LNA low noise amplifier, power separation module connects power module, power module connects PA power amplifier and LNA low noise amplifier and power feed-in module, PA power amplifier and LNA low noise amplifier parallel connection just all connect receiving and dispatching duplexer I and receiving and dispatching duplexer II, receiving and dispatching duplexer I connects power separation module, receiving and dispatching duplexer II connects power feed-in module. The feed amplifier of the utility model can supply power without on-site power supply when the upper-level circuit supplies power, thereby providing the stability of the system; the power supply can be carried out on the output line, so that the problem of power supply of various devices fused by the line is effectively solved; due to the fact that the output end is fed with power through the line, whether the working state of each equipment device is normal or not can be detected in time through the line power detection system.

Description

Feed amplifier

Technical Field

The utility model relates to an amplifier field, concretely relates to feed amplifier.

Background

The amplifier used in the existing wireless communication system and the next-stage line equipment of the amplifier adopt site power taking, and the site power taking has the following problems: the installation site needs to be separately provided with a power supply device, so that the system cost is high; because the field condition is limited and the UPS can not be in the same path with the UPS of the machine room, a local no-signal fault can be caused by the interruption of the field power supply; the existing amplifier does not have the function of supplying power to an output line, so that the framework of line equipment and the integration of Internet of things equipment are limited to a great extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a feed amplifier for solve the amplifier among the prior art and its next stage line equipment adopt the scene to get the electricity and lead to the problem that the system is with high costs, the scene power supply interrupt causes local no signal easily.

The utility model provides a feed amplifier, including power module, power separation module, power feed-in module, receiving and dispatching duplexer one, receiving and dispatching duplexer two, PA power amplifier and LNA low noise amplifier, power module's input is connected to power separation module's output, PA power amplifier, LNA low noise amplifier and power feed-in module are connected to power module's output for PA power amplifier, LNA low noise amplifier and power feed-in module power supply, PA power amplifier and LNA low noise amplifier parallel connection just all connect receiving and dispatching duplexer one and receiving and dispatching duplexer two, power separation module is connected to receiving and dispatching duplexer one's input, power feed-in module is connected to receiving and dispatching duplexer two's output.

Furthermore, the power module comprises capacitors C11, C12, C13, diodes D1, D2, D3, D4, an inductor L1 and a voltage stabilizing circuit, wherein a circuit formed by connecting the inductor L1 and the capacitor C12 in series is connected in parallel with the capacitor C11 to form a power clutter suppression circuit, two ends of the power clutter suppression circuit are connected with an input end of a bridge rectifier circuit formed by the diodes D1, D2, D3 and D4, one output end of the bridge rectifier circuit is grounded, the other output end of the bridge rectifier circuit is connected with the capacitor C13 and the voltage stabilizing circuit and is powered out through the voltage stabilizing circuit, the capacitor C13 is a rectification filter capacitor, and the other end of the capacitor C13 is grounded.

Further, the power separation module includes capacitors C21, C22, C23, inductors L21, L22, the output end of inductor L21 is connected with capacitors C21, C23 and inductor L22, the output end of capacitor C23 outputs RF signals, the output end of inductor L22 is divided into two paths, one path is connected with capacitor C22, the other path is connected to the input end of the power module and used for outputting power, capacitors C21 and C22 are grounded, inductor L21 and capacitor C21 constitute a power wave suppression circuit, inductor L22 and capacitor C22 constitute power output filtering, and capacitor C23 is a power isolation capacitor and isolates power supplied from a line.

Further, the first transceiver duplexer, the second transceiver duplexer constitute by TX band-pass filter and RX band-pass filter, the ANT port is constituteed to TX band-pass filter and RX band-pass filter's one end links to each other, the ANT port of the first duplexer of two transmitters connects the output of power separation module electric capacity C23, and TX band-pass filter connects PA power amplifier's input, and RX band-pass filter connects LNA low noise amplifier's output, the TX band-pass filter of the second transceiver duplexer is connected to PA power amplifier's output, the RX band-pass filter of the second transceiver duplexer is connected to LNA low noise amplifier's input, the ANT port of the second transceiver duplexer connects the signal input part of power feed-in module.

Further, the power feeding module includes capacitors C31, C32, C33, C34, inductors L31, and L32, an input end of the capacitor C31 is connected to an ANT port of the second transceiver duplexer and is used for inputting an RF signal, an 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 to isolate a fed power, an input end of the inductor L32 is connected to an input power of a power supply output end of the power module, an input end of the inductor L32 is further connected to the capacitor C34, an output end of the inductor L32 is connected to the capacitor C33, an output end of the inductor L32 is connected to an output end of the capacitor C32 to form an output port for outputting an RF signal and a power, and the inductors L31 and the capacitors C33 and C34 are grounded.

Furthermore, the power module is further connected with a power supply, and the power supply is an alternating current power supply, a direct current 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.

Adopt above-mentioned the utility model discloses technical scheme's beneficial effect is:

the feed amplifier of the utility model can supply power without on-site power supply when the upper-level circuit supplies power, thereby providing the stability of the system; the power supply can be carried out on the output line, so that the problem of power supply of various devices fused by the line is effectively solved; due to the fact that the output end is fed with power through the line, whether the working state of each equipment device is normal or not can be detected in time through the line power detection system.

Drawings

Fig. 1 is a schematic diagram of the structure of the feed amplifier of the present invention;

FIG. 2 is a schematic diagram of a power module;

FIG. 3 is a schematic diagram of a power separation module;

FIG. 4 is a schematic structural diagram of a power feeding module;

fig. 5 is a schematic diagram of the connection relationship of the feed amplifier of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

the power supply comprises a power supply module 1, a power supply separation module 2, a power supply feed-in module 3, a duplexer I4, a duplexer I5, a duplexer II 6, a PA power amplifier 6, a LNA 7 and a power supply 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1-5, the present invention provides a feed amplifier, which comprises a power supply module 1, a power separation module 2, a power feed module 3, a first duplexer 4, a second duplexer 5, a PA power amplifier 6, and a LNA low noise amplifier 7, the output end of the power supply separation module 2 is connected with the input end of the power supply module 1, the output end of the power supply module 1 is connected with the PA power amplifier 6, the LNA low noise amplifier 7 and the power supply feed-in module 3, for powering the PA power amplifier 6, the LNA low noise amplifier 7 and the power supply feed module 3, the PA power amplifier 6 and the LNA low noise amplifier 7 are connected in parallel and are both connected to the first transceiver duplexer 4 and the second transceiver duplexer 5, the input end of the first transceiver duplexer 4 is connected with the power separation module 2, and the output end of the second transceiver duplexer 5 is connected with the power feed-in module 3.

The power module 1 comprises capacitors C11, C12 and C13, diodes D1, D2, D3 and D4, an inductor L1 and a voltage stabilizing circuit, wherein a circuit formed by serially connecting the inductor L1 and the capacitor C12 is connected with the capacitor C11 in parallel to form a power clutter suppression circuit, two ends of the power clutter suppression circuit are connected with the input end of a bridge rectifier circuit formed by the diodes D1, D2, D3 and D4, one output end of the bridge rectifier circuit is grounded, the other output end of the bridge rectifier circuit is connected with the capacitor C13 and the voltage stabilizing circuit and is powered outwards through the voltage stabilizing circuit, the capacitor C13 is a rectifier filter capacitor, and the other end of the capacitor C13 is grounded.

The power separation module comprises capacitors C21, C22, C23, inductors L21 and L22, output ends of the inductors L21 are connected with capacitors C21, C23 and inductors L22, output ends of the capacitors C23 output RF signals, output ends of the inductors L22 are divided into two paths, one path is connected with the capacitors C22, the other path is connected to the input end of the power module and used for outputting power, the capacitors C21 and C22 are grounded, a power wave suppression circuit is formed by the inductors L21 and the capacitors C21, power output filtering is formed by the inductors L22 and the capacitors C22, and the capacitors C23 are power isolation capacitors and isolate power fed by a circuit.

The first receiving-transmitting duplexer, the second receiving-transmitting duplexer are composed of a TX band-pass filter and an RX band-pass filter, the one ends of the TX band-pass filter and the RX band-pass filter are connected to form an ANT port, the ANT port of the first receiving-transmitting duplexer is connected with the output end of a power separation module capacitor C23, the TX band-pass filter is connected with the input end of a PA power amplifier, the RX band-pass filter is connected with the output end of a LNA low-noise amplifier, the TX band-pass filter of the second receiving-transmitting duplexer is connected with the output end of the PA power amplifier, and the ANT port of the second receiving-transmitting duplexer is connected with the signal input end of a power feed-in module.

The power feed-in module comprises capacitors C31, C32, C33, C34 and inductors L31 and L32, wherein the input end of the capacitor C31 is connected with an ANT port of the second transceiver duplexer and used for inputting an RF signal, the output end of the capacitor C31 is connected with an inductor L31 and a capacitor C32, the capacitors C31, C32 and an inductor L31 form a power decoupling circuit and are used for isolating a fed-in power supply, the input end of the inductor L32 is connected with the power supply output end of the power supply module for inputting a power supply, the input end of the inductor L32 is further connected with a capacitor C34, the output end of the inductor L32 is connected with the capacitor C33, the output end of the inductor L32 is connected with the output end of the capacitor C32 to form an output port for outputting an RF signal and a power supply, and the inductors L31, the capacitors C.

In this embodiment, the input end of the power splitting module 2 is connected to a first-stage line, the RF signal and the power are transmitted to the input end of the inductor L21 while the RF signal is transmitted through the first-stage line, the RF signal is output from the output end of the capacitor C23 through the power splitting module, and the power is output from 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 clutter suppression circuit and the bridge rectifier circuit, and finally, after stabilizing the rectified and filtered direct-current voltage at the working voltage value required by the amplifier through the voltage stabilizing circuit, the power supply is output to supply power to the internal devices of the amplifier, and meanwhile, the power supply is output to the input end of the inductor L32 of the power supply feed-in module 3; the RF signal enters an ANT port of the first duplexer, the TX signal and the RX signal are respectively amplified through a PA power amplifier and an LNA low-noise amplifier, after the ANT port receives the RX signal, an RX band-pass filter connected with the RX port does not block the RX signal, but a TX band-pass filter connected with the TX port almost completely prevents the RX signal from passing through, so that the RX signal does not generate interference on a TX circuit; on the contrary, the TX signal output by the PA power amplifier is transmitted from the TX port of the transmitting-receiving duplexer II, the TX band-pass filter connected with the TX port is unobstructed to the power signal output by the TX, but the RX band-pass filter connected with the RX port is almost completely prevented from outputting the signal to the TX, so that the power signal output by the TX does not damage an RX circuit and does not generate suppression interference on a weak signal of the RX; the RF signal finally enters the input terminal of the capacitor C31 of the power feeding module 3, the RF signal and the power are merged at the power feeding module, and the power feeding module 3 synthesizes the power + RF signal mode again to provide the required RF signal and power supply for the next stage of circuit equipment.

Preferably, the power module 1 is further connected with a power supply 8, when a previous-stage line cannot provide power, the power supply 8 is supplied by a field power supply, the power supply 8 is an alternating current power supply, a direct current 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, and as the diodes D1, D2, D3 and D4 form a bridge rectifier circuit, the power input interface has no difference between the positive and negative poles of the power supply, so that the power input can be direct current or negative pulse and alternating wireless radio frequency power supply.

In conclusion, the feed amplifier of the utility model can supply power without on-site power supply when the upper-level circuit supplies power, thereby providing the stability of the system; the power supply can be carried out on the output line, so that the problem of power supply of various devices fused by the line is effectively solved; due to the fact that the output end is fed with power through the line, whether the working state of each equipment device is normal or not can be detected in time through the line power detection system.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a feed amplifier, its characterized in that, includes power module, power separation module, power feed-in module, receiving and dispatching duplexer one, receiving and dispatching duplexer two, PA power amplifier and LNA low noise amplifier, power separation module's output is connected power module's input, PA power amplifier, LNA low noise amplifier and power feed-in module are connected to power module's output for PA power amplifier, LNA low noise amplifier and power feed-in module power supply, PA power amplifier and LNA low noise amplifier parallel connection just all connect receiving and dispatching duplexer one and receiving and dispatching duplexer two, power separation module is connected to receiving and dispatching duplexer one's input, power feed-in module is connected to receiving and dispatching duplexer two's output.

2. The feed amplifier of claim 1, wherein the power module comprises capacitors C11, C12, C13, diodes D1, D2, D3, D4, an inductor L1 and a voltage stabilizing circuit, a circuit formed by connecting the inductor L1 and the capacitor C12 in series is connected in parallel with the capacitor C11 to form a power noise suppression circuit, two ends of the power noise suppression circuit are connected to input ends of a bridge rectifier circuit formed by the diodes D1, D2, D3, and D4, one output end of the bridge rectifier circuit is grounded, the other output end of the bridge rectifier circuit is connected to the capacitor C13 and the voltage stabilizing circuit and is powered out through the voltage stabilizing circuit, the capacitor C13 is a rectifying filter capacitor, and the other end of the capacitor is grounded.

3. The feed amplifier of claim 2, wherein the power splitting module includes capacitors C21, C22, C23 and inductors L21 and L22, an output terminal of the inductor L21 is connected to capacitors C21, C23 and inductor L22, an output terminal of the capacitor C23 outputs an RF signal, an output terminal of the inductor L22 is divided into two circuits, one circuit is connected to the capacitor C22, the other circuit is connected to an input terminal of the power module for outputting a power source, 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, and isolates the power source fed by the circuit.

4. The feed amplifier of claim 3, wherein the first transceiver duplexer and the second transceiver duplexer are both composed of a TX band pass filter and an RX band pass filter, one end of the TX band pass filter and one end of the RX band pass filter are connected to form an ANT port, the ANT port of the first transceiver duplexer is connected to the output end of a power separation module capacitor C23, the TX band pass filter is connected to the input end of a PA power amplifier, the RX band pass filter is connected to the output end of an LNA low noise amplifier, the output end of the PA power amplifier is connected to the TX band pass filter of the second transceiver duplexer, the input end of the LNA low noise amplifier is connected to the RX band pass filter of the second transceiver duplexer, and the ANT port of the second transceiver duplexer is connected to the signal input end of a power feeding.

5. The feed amplifier of claim 4, wherein the power feed-in module comprises capacitors C31, C32, C33, C34, inductors L31, and L32, wherein an input terminal of the capacitor C31 is connected to an ANT port of the duplexer two for inputting RF signals, an output terminal of the capacitor C31 is connected to the inductor L31 and the capacitor C32, the capacitors C31, C32 and the inductor L31 constitute a power decoupling circuit for isolating the fed power, an input terminal of the inductor L32 is connected to the power supply output terminal of the power module for inputting power, an input terminal of the inductor L32 is further connected to the capacitor C34, an output terminal of the inductor L32 is connected to the capacitor C33, an output terminal of the inductor L32 is connected to an output port of the capacitor C32 for outputting RF signals and power, and the inductors L31 and the capacitors C33 and C34 are grounded.

6. The feed amplifier of claim 1, wherein the power module is further connected to a power supply, and the power supply is an ac power supply, a dc power supply, a pulse power supply, a photovoltaic power supply, a wind power supply, a wireless charging power supply, or a radio frequency power supply.