阅读说明：本技术 一种Ku波段星载功率放大器、系统和方法 (Ku-waveband satellite-borne power amplifier, system and method ) 是由 陈鹏飞 刘红祥 于 2021-06-28 设计创作，主要内容包括：本发明的一个实施例公开了一种Ku波段星载功率放大器,包括：驱动级功率放大模块、微带功率分配器、末级功率放大模块和波导功率合成模块,其中,所述驱动级功率放大模块用于将低功率的输入信号进行功率放大,所述微带功率分配器用于将放大后的输入信号分为n路信号,分别发送给末级功率放大模块进行二次功率放大,所述波导功率合成模块用于将多路二次功率放大后的信号合成,输出高功率微波信号。(One embodiment of the invention discloses a Ku waveband satellite-borne power amplifier, which comprises: the microwave power amplifier comprises a driving stage power amplification module, a micro-strip power divider, a final stage power amplification module and a waveguide power synthesis module, wherein the driving stage power amplification module is used for carrying out power amplification on a low-power input signal, the micro-strip power divider is used for dividing the amplified input signal into n paths of signals and respectively sending the signals to the final stage power amplification module for secondary power amplification, and the waveguide power synthesis module is used for synthesizing multiple paths of signals subjected to secondary power amplification and outputting a high-power microwave signal.)

1. A Ku-band space-borne power amplifier, comprising:

a driving stage power amplification module, a microstrip power divider, a final stage power amplification module and a waveguide power synthesis module, wherein,

the driving stage power amplification module is used for performing power amplification on a low-power input signal,

the microstrip power divider is used for dividing the amplified input signal into n paths of signals, respectively sending the signals to the final power amplification module for secondary power amplification,

the waveguide power synthesis module is used for synthesizing the signals after the multi-path secondary power amplification and outputting high-power microwave signals.

2. The amplifier of claim 1, further comprising a waveguide coaxial conversion module for receiving an input signal and sending it to the driver stage power amplification module.

3. The amplifier of claim 1, wherein the number of the final power amplification blocks is n, and the ith final power amplification block receives the ith signal, i ═ 1, 2, and 3 … n.

4. The amplifier of claim 1, wherein the microstrip power divider comprises: the microstrip patch comprises a microstrip sheet, an absorption resistor and a bottom plate, wherein the bottom plate is provided with the microstrip sheet, and the absorption resistor is arranged on a surface circuit of the microstrip sheet.

5. An amplifier according to claim 1 or 3, wherein n is 8.

6. A Ku-band spaceborne power amplification system, comprising:

the power amplifier of any one of claims 1-5,

a housing.

7. A Ku waveband satellite-borne power amplification method is characterized in that a driving-stage power amplification module is used for carrying out power amplification on a low-power input signal,

the micro-strip power divider divides the amplified input signal into n paths of signals, and respectively sends the signals to the final power amplification module for secondary power amplification,

the waveguide power synthesis module synthesizes the signals after the multi-path secondary power amplification and outputs high-power microwave signals.

8. The amplification method of claim 7, further comprising the waveguide coaxial conversion module receiving the input signal and sending it to the driver stage power amplification module.

9. The amplifier of claim 7, wherein the number of the final power amplifying blocks is n, and the ith final power amplifying block receives the ith signal, i ═ 1, 2, and 3 … n.

10. The amplifier of claim 9, wherein n is 8.

Technical Field

The present invention relates to power amplifiers. And more particularly to a Ku band on-board power amplifier, system and method.

Background

The solid-state transmitter is one of the key components in the radar system, and the output power of the solid-state transmitter directly determines the action radius and the anti-interference capability of the radar and the communication quality and performance of the system. However, a single solid-state power amplifier is limited by the physical characteristics of its semiconductor and the influence of the processing technology, and the output power is limited, so how to meet the output power requirement of the radar on the transmitter becomes a problem to be solved.

Disclosure of Invention

In view of this, a first embodiment of the present invention provides a Ku-band space-borne power amplifier, including:

a driving stage power amplification module, a microstrip power divider, a final stage power amplification module and a waveguide power synthesis module, wherein,

the driving stage power amplification module is used for performing power amplification on a low-power input signal,

the microstrip power divider is used for dividing the amplified input signal into n paths of signals, respectively sending the signals to the final power amplification module for secondary power amplification,

the waveguide power synthesis module is used for synthesizing the signals after the multi-path secondary power amplification and outputting high-power microwave signals.

In one embodiment, the amplifier further comprises a waveguide coaxial conversion module for receiving the input signal and sending the input signal to the driver stage power amplification module.

In a specific embodiment, the number of the final power amplification blocks is n, and the ith final power amplification block receives the ith signal, where i is 1, 2, and 3 … n.

In a specific embodiment, the microstrip power divider comprises: the microstrip patch comprises a microstrip sheet, an absorption resistor and a bottom plate, wherein the bottom plate is provided with the microstrip sheet, and the absorption resistor is arranged on a surface circuit of the microstrip sheet.

In a particular embodiment, n is 8.

A second embodiment of the present invention provides a Ku band satellite-borne power amplification system, including:

the power amplifier according to any one of the first embodiments,

a housing.

The third embodiment of the invention provides a Ku-band satellite-borne power amplification method, wherein a driving-stage power amplification module is used for performing power amplification on a low-power input signal,

the micro-strip power divider divides the amplified input signal into n paths of signals, and respectively sends the signals to the final power amplification module for secondary power amplification,

the waveguide power synthesis module synthesizes the signals after the multi-path secondary power amplification and outputs high-power microwave signals.

In a specific embodiment, the method further comprises the waveguide coaxial conversion module receiving the input signal and sending the input signal to the drive stage power amplification module.

In a specific embodiment, the number of the final power amplification blocks is n, and the ith final power amplification block receives the ith signal, where i is 1, 2, and 3 … n.

In a particular embodiment, n is 8.

The invention has the following beneficial effects:

the invention provides a Ku-band spaceborne power amplifier, a system and a method, realizes the Ku-band microwave power output exceeding 600W, has the advantages of compact structure, high output power and the like, and plays an important role in realizing a Ku-band spaceborne high-power transmitter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a Ku band space borne power amplifier architecture diagram according to one embodiment of the invention.

Fig. 2 shows a flow chart of a Ku band satellite-borne power amplification method according to an embodiment of the invention.

Detailed Description

In order to make the technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, a Ku-band satellite-borne power amplifier includes:

a driving stage power amplification module, a microstrip power divider, a final stage power amplification module and a waveguide power synthesis module, wherein,

the driving stage power amplification module is used for performing power amplification on a low-power input signal,

the microstrip power divider is used for dividing the amplified input signal into n paths of signals, respectively sending the signals to the final power amplification module for secondary power amplification,

the waveguide power synthesis module is used for synthesizing the signals after the multi-path secondary power amplification and outputting high-power microwave signals.

In one embodiment, the amplifier further comprises a waveguide coaxial conversion module for receiving the input signal and sending the input signal to the driver stage power amplification module.

The number of the final power amplification modules is n, that is, the number of the final power amplifiers corresponds to the number of paths of the microstrip power divider dividing the amplified input signal into multiple paths of signals, the ith final power amplification module receives the ith signal, i is 1, 2, and 3 … n, for example, the first final power amplification module receives the first path of signal.

More preferably, n is 8.

In a specific embodiment, the microstrip power divider comprises: the microstrip patch comprises a microstrip sheet, an absorption resistor and a bottom plate, wherein the bottom plate is provided with the microstrip sheet, and the absorption resistor is arranged on a surface circuit of the microstrip sheet. The waveguide power combiner comprises a metal cavity and a cover plate, and the microstrip power divider is arranged on the cover plate of the waveguide power combiner.

The Ku-band spaceborne power amplifier provided by the invention realizes the Ku-band microwave power output exceeding 600W, has the advantages of compact structure, high output power and the like, and plays an important role in realizing a Ku-band spaceborne high-power transmitter.

Another embodiment of the present invention provides a Ku-band satellite-borne power amplification system, which includes the above amplifier and a housing, and the foregoing embodiments are also applicable to the temperature measurement system provided in this embodiment, and will not be described in detail in this embodiment.

The invention provides a Ku-band spaceborne power amplifier, a system and a method, realizes the Ku-band microwave power output exceeding 600W, has the advantages of compact structure, high output power and the like, and plays an important role in realizing a Ku-band spaceborne high-power transmitter.

The Ku-band spaceborne power amplification system provided by the invention realizes the Ku-band microwave power output exceeding 600W, has the advantages of compact structure, high output power and the like, and plays an important role in realizing a Ku-band spaceborne high-power transmitter.

As shown in fig. 2, in a Ku-band satellite-borne power amplification method, a driver-stage power amplification module performs power amplification on a low-power input signal,

the micro-strip power divider divides the amplified input signal into n paths of signals, and respectively sends the signals to the final power amplification module for secondary power amplification,

the waveguide power synthesis module synthesizes the signals after the multi-path secondary power amplification and outputs high-power microwave signals.

The method further comprises the step that the waveguide coaxial conversion module receives the input signal and sends the input signal to the driving-stage power amplification module.

The number of the final power amplification modules is n, that is, the number of the final power amplifiers corresponds to the number of paths of the microstrip power divider dividing the amplified input signal into multiple paths of signals, the ith final power amplification module receives the ith signal, i is 1, 2, and 3 … n, for example, the first final power amplification module receives the first path of signal.

More preferably, n is 8.

The Ku waveband satellite-borne power amplification method provided by the invention realizes the Ku waveband microwave power output exceeding 600W, has the advantages of compact structure, high output power and the like, and plays an important role in realizing a Ku waveband satellite-borne high-power transmitter.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.