CN107526011B - High-power micro-discharge power loading system - Google Patents
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Abstract
本发明实施例公开了一种大功率微放电功率加载系统，工作频率范围为0.8－2.5GHz，连续波输出功率大于500W，具备连续波，脉冲，脉冲加连续波三种工作模式，在输出端射频开路还能继续工作，并且不会被全反射频功率损坏。本发明实施例的大功率微放电功率加载系统包括：末级大功率合成放大器模块、大功率射频开关、0.8－1.4GHz大功率谐波滤波器、1.4－2.5GHz大功率谐波滤波器、0.8－1.4GHz大功率环形器、1.4－2.5GHz大功率环形器、0.8－1.4GHz大功率负载和1.4－2.5GHz大功率负载。
The embodiment of the invention discloses a high-power micro-discharge power loading system, the working frequency range is 0.8-2.5GHz, the continuous wave output power is greater than 500W, and it has three working modes: continuous wave, pulse, and pulse plus continuous wave. The RF open circuit can continue to work and will not be damaged by total reflected RF power. The high-power micro-discharge power loading system of the embodiment of the present invention includes: the final high-power synthesis amplifier module, high-power radio frequency switch, 0.8-1.4GHz high-power harmonic filter, 1.4-2.5GHz high-power harmonic filter, 0.8 -1.4GHz high-power circulator, 1.4-2.5GHz high-power circulator, 0.8-1.4GHz high-power load and 1.4-2.5GHz high-power load.
Description
技术领域technical field
本发明涉及微波电子通信领域，尤其涉及一种大功率微放电功率加载系统。The invention relates to the field of microwave electronic communication, in particular to a high-power micro-discharge power loading system.
背景技术Background technique
近年来，随着空间技术的发展，微波部件工作的功率越来越大，使得空间发生微放电的可能性大大增加。工作在大功率状态下的微波器件，当功率、射频和器件内部结构尺寸满足一定关系时发生微放电效应。In recent years, with the development of space technology, the power of microwave components is increasing, which greatly increases the possibility of micro-discharge in space. For microwave devices working under high power conditions, microdischarge effects occur when the power, radio frequency and the internal structure size of the device meet a certain relationship.
微放电一旦产生将会造成严重后果，导致微波传输系统驻波比增大，反射功率增加，噪声电平抬高，致使系统不能正常工作。高电平微放电可以引起击穿，射频功率全反射，部件永久性破坏，通信信道丧失工作能力。基于微放电发生会产生严重影响，而且微放电产生机理复杂，至今还没有完全掌握；同时，实际中制作工艺与工艺缺陷，以及存放过程中可能会污染等方面原因，会导致实际的微放电阈值比设计的低；因此，必须对制造好的器件以及待使用的器件进行微放电测试，尤其是现在微波器件的工作功率越来越大，则更需要一个大功率的微放电功率加载系统来进行测试检验微波器件是否满足设计要求。Once the micro-discharge occurs, it will cause serious consequences, resulting in the increase of the standing wave ratio of the microwave transmission system, the increase of the reflected power, and the increase of the noise level, resulting in the system not working properly. High-level microdischarges can cause breakdown, total reflection of RF power, permanent damage to components, and incapacity of communication channels. Based on the occurrence of micro-discharge will have a serious impact, and the mechanism of micro-discharge is complex, which has not been fully grasped yet; at the same time, the actual manufacturing process and process defects, as well as possible pollution during storage, will lead to the actual micro-discharge threshold. It is lower than the design; therefore, micro-discharge tests must be carried out on the manufactured devices and the devices to be used, especially now that the working power of microwave devices is getting higher and higher, a high-power micro-discharge power loading system is needed to carry out The test verifies whether the microwave device meets the design requirements.
发明内容Contents of the invention
本发明实施例提供了一种大功率微放电功率加载系统，工作频率范围为0.8－2.5GHz，连续波输出功率大于500W，具备连续波，脉冲，脉冲加连续波三种工作模式，在输出端射频开路还能继续工作，并且不会被全反射频功率损坏。The embodiment of the present invention provides a high-power micro-discharge power loading system, the working frequency range is 0.8-2.5GHz, the continuous wave output power is greater than 500W, and it has three working modes: continuous wave, pulse, and pulse plus continuous wave. The RF open circuit can continue to work and will not be damaged by total reflected RF power.
本发明实施例提供的一种大功率微放电功率加载系统，包括：输入端单向定向耦合器、ALC控制模块、步进衰减器模块、带通开关滤波器模块、前级驱动放大器模块、末级大功率合成放大器模块、大功率双向定向耦合器、大功率射频开关、0.8－1.4GHz大功率谐波滤波器、1.4－2.5GHz大功率谐波滤波器、0.8－1.4GHz大功率环形器、1.4－2.5GHz大功率环形器、0.8－1.4GHz大功率负载、1.4－2.5GHz大功率负载、380VAC-DC开关电源、DC-DC电源稳压模块、MCU主监控模块、功放供电偏置模块、显示屏模块、前面板控制模块、风扇供电控制模块、功率检波器和温度传感器；A high-power micro-discharge power loading system provided by an embodiment of the present invention includes: a unidirectional directional coupler at the input end, an ALC control module, a step attenuator module, a band-pass switch filter module, a pre-stage drive amplifier module, a final Class high-power synthetic amplifier module, high-power two-way directional coupler, high-power RF switch, 0.8-1.4GHz high-power harmonic filter, 1.4-2.5GHz high-power harmonic filter, 0.8-1.4GHz high-power circulator, 1.4-2.5GHz high-power circulator, 0.8-1.4GHz high-power load, 1.4-2.5GHz high-power load, 380VAC-DC switching power supply, DC-DC power supply voltage regulator module, MCU main monitoring module, power amplifier power supply bias module, Display module, front panel control module, fan power supply control module, power detector and temperature sensor;
所述输入端单向定向耦合器连接所述ALC控制模块；The input unidirectional directional coupler is connected to the ALC control module;
所述ALC控制模块连接所述步进衰减器模块；The ALC control module is connected to the step attenuator module;
所述步进衰减器模块连接所述带通开关滤波器模块；The step attenuator module is connected to the bandpass switch filter module;
所述带通开关滤波器模块连接所述前级驱动放大器模块；The bandpass switch filter module is connected to the pre-stage drive amplifier module;
所述前级驱动放大器模块连接所述末级大功率合成放大器模块；The front-stage drive amplifier module is connected to the final-stage high-power synthesis amplifier module;
所述末级大功率合成放大器模块连接所述大功率双向定向耦合器；The final high-power synthetic amplifier module is connected to the high-power bidirectional directional coupler;
所述大功率双向定向耦合器连接所述大功率射频开关；The high-power two-way directional coupler is connected to the high-power radio frequency switch;
所述大功率射频开关连接所述0.8－1.4GHz大功率谐波滤波器和所述1.4－2.5GHz大功率谐波滤波器；The high-power radio frequency switch is connected to the 0.8-1.4GHz high-power harmonic filter and the 1.4-2.5GHz high-power harmonic filter;
所述0.8－1.4GHz大功率谐波滤波器连接所述0.8－1.4GHz大功率环形器；所述0.8－1.4GHz大功率环形器连接所述0.8－1.4GHz大功率负载；The 0.8-1.4GHz high-power harmonic filter is connected to the 0.8-1.4GHz high-power circulator; the 0.8-1.4GHz high-power circulator is connected to the 0.8-1.4GHz high-power load;
所述1.4－2.5GHz大功率谐波滤波器连接所述1.4－2.5GHz大功率环形器；所述1.4－2.5GHz大功率环形器连接所述1.4－2.5GHz大功率负载；The 1.4-2.5GHz high-power harmonic filter is connected to the 1.4-2.5GHz high-power circulator; the 1.4-2.5GHz high-power circulator is connected to the 1.4-2.5GHz high-power load;
所述ALC控制模块、所述大功率双向定向耦合器和所述功率检波器构成闭环；The ALC control module, the high-power bidirectional directional coupler and the power detector form a closed loop;
所述输入端单向定向耦合器串联所述功率检波器同时向所述MCU主监控模块输送功率检测电压值；The unidirectional directional coupler at the input end connects the power detector in series and simultaneously transmits the power detection voltage value to the MCU main monitoring module;
所述MCU主监控模块连接所述功放供电偏置模块和大功率射频开关；The MCU main monitoring module is connected to the power amplifier power supply bias module and a high-power radio frequency switch;
所述功放供电偏置模块连接所述380VAC-DC开关电源；The power amplifier power supply bias module is connected to the 380VAC-DC switching power supply;
所述DC-DC电源稳压模块连接所述380VAC-DC开关电源；The DC-DC power supply voltage stabilization module is connected to the 380VAC-DC switching power supply;
所述前面板控制模块通过Can线与所述显示屏模块、所述风扇供电控制模块、所述主监控模块、所述功放供电偏置模块、所述功率检波器和所述温度传感器并联。The front panel control module is connected in parallel with the display screen module, the fan power supply control module, the main monitoring module, the power amplifier power supply bias module, the power detector and the temperature sensor through a Can line.
优选地，所述末级大功率合成放大器模块包括：16路80W末级放大器、3DB电桥、4路功率合成器和2路功率合成器；Preferably, the final high-power synthesis amplifier module includes: 16-way 80W final-stage amplifier, 3DB bridge, 4-way power combiner and 2-way power combiner;
所述16路80W末级放大器连接所述3DB电桥；The 16-way 80W final stage amplifier is connected to the 3DB electric bridge;
所述3DB电桥连接所述4路功率合成器；The 3DB bridge is connected to the 4-way power combiner;
所述4路功率合成器连接所述2路功率合成器。The 4-way power combiner is connected to the 2-way power combiner.
优选地，所述末级大功率合成放大器模块还包括：2路功分器和4路功分器；Preferably, the final high-power synthetic amplifier module further includes: 2-way power splitter and 4-way power splitter;
所述2路功分器连接所述4路功分器；The 2-way power splitter is connected to the 4-way power splitter;
所述4路功分器连接所述3DB电桥。The 4-way power splitter is connected to the 3DB electric bridge.
优选地，所述输入端单向定向耦合器连接射频信号输入接口。Preferably, the unidirectional directional coupler at the input end is connected to the radio frequency signal input interface.
优选地，所述0.8－1.4GHz大功率环形器和所述1.4－2.5GHz大功率环形器都连接射频信号输出接口。Preferably, both the 0.8-1.4GHz high-power circulator and the 1.4-2.5GHz high-power circulator are connected to the radio frequency signal output interface.
优选地，所述输入端单向定向耦合器和所述功率检波器，用于实现过输入功率电压检测。Preferably, the unidirectional directional coupler at the input end and the power detector are used to detect over-input power voltage.
优选地，所述MCU主监控模块，用于通过判断输入功率的大小控制所述功放供电偏置模块的开启和关断。Preferably, the MCU main monitoring module is configured to control the power amplifier power supply bias module to be turned on and off by judging the magnitude of the input power.
优选地，所述MCU主监控模块，还用于对所述功率检波器进行功率检测换算并且对所述大功率射频开关进行频段切换。Preferably, the MCU main monitoring module is also used to perform power detection conversion on the power detector and frequency band switching on the high-power radio frequency switch.
优选地，所述MCU主监控模块，还用于过功率保护和过驻波比保护。Preferably, the MCU main monitoring module is also used for over-power protection and over-standing wave ratio protection.
优选地，所述功放供电偏置模块，用于为各级功率放大器模块提供电源，并监控每路功放芯片的电流、栅压、漏压和温度，对功放芯片进行过流、过压和过温保护。Preferably, the power amplifier power supply bias module is used to provide power for power amplifier modules at all levels, and monitor the current, gate voltage, leakage voltage and temperature of each power amplifier chip, and perform overcurrent, overvoltage and overvoltage conditions on the power amplifier chip. temperature protection.
从以上技术方案可以看出，本发明实施例具有以下优点：It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:
本发明实施例中提供的一种大功率微放电功率加载系统包括：输入端单向定向耦合器、ALC控制模块、步进衰减器模块、带通开关滤波器模块、前级驱动放大器模块、末级大功率合成放大器模块、大功率双向定向耦合器、大功率射频开关、0.8－1.4GHz大功率谐波滤波器、1.4－2.5GHz大功率谐波滤波器、0.8－1.4GHz大功率环形器、1.4－2.5GHz大功率环形器、0.8－1.4GHz大功率负载、1.4－2.5GHz大功率负载、380VAC-DC开关电源、DC-DC电源稳压模块、MCU主监控模块、功放供电偏置模块、显示屏模块、前面板控制模块、风扇供电控制模块、功率检波器和温度传感器；所述输入端单向定向耦合器连接所述ALC控制模块；所述ALC控制模块连接所述步进衰减器模块；所述步进衰减器模块连接所述带通开关滤波器模块；所述带通开关滤波器模块连接所述前级驱动放大器模块；所述前级驱动放大器模块连接所述末级大功率合成放大器模块；所述末级大功率合成放大器模块连接所述大功率双向定向耦合器；所述大功率双向定向耦合器连接所述大功率射频开关；所述大功率射频开关连接所述0.8－1.4GHz大功率谐波滤波器和所述1.4－2.5GHz大功率谐波滤波器；所述0.8－1.4GHz大功率谐波滤波器连接所述0.8－1.4GHz大功率环形器；所述0.8－1.4GHz大功率环形器连接所述0.8－1.4GHz大功率负载；所述1.4－2.5GHz大功率谐波滤波器连接所述1.4－2.5GHz大功率环形器；所述1.4－2.5GHz大功率环形器连接所述1.4－2.5GHz大功率负载；所述ALC控制模块、所述大功率双向定向耦合器和所述功率检波器构成闭环；所述输入端单向定向耦合器串联所述功率检波器同时向所述MCU主监控模块输送功率检测电压值；所述MCU主监控模块连接所述功放供电偏置模块和大功率射频开关；所述功放供电偏置模块连接所述380VAC-DC开关电源；所述DC-DC电源稳压模块连接所述380VAC-DC开关电源；所述前面板控制模块通过Can线与所述显示屏模块、所述风扇供电控制模块、所述主监控模块、所述功放供电偏置模块、所述功率检波器和所述温度传感器并联。本实施例中，通过大功率射频开关、0.8－1.4GHz大功率谐波滤波器、1.4－2.5GHz大功率谐波滤波器、0.8－1.4GHz大功率环形器、1.4－2.5GHz大功率环形器12、0.8－1.4GHz大功率负载、1.4－2.5GHz大功率负载和末级大功率合成放大器模块形成了对0.8－2.5G工作频率分两段输出实现了连续波输出功率大于500W，具备连续波，脉冲，脉冲加连续波三种工作模式，在输出端射频开路还能继续工作，并且不会被全反射频功率损坏，解决了现有的功率加载系统只能对工作频率分成多段，环形器的带宽窄，功率很小，并且在进行微波器件大功率微放电测试验证的过程中，因为器件产生微放电，形成功率全反射，从而损坏功率放大器的芯片的技术问题。A high-power micro-discharge power loading system provided in an embodiment of the present invention includes: a unidirectional directional coupler at the input end, an ALC control module, a step attenuator module, a band-pass switch filter module, a pre-stage drive amplifier module, an Class high-power synthetic amplifier module, high-power two-way directional coupler, high-power RF switch, 0.8-1.4GHz high-power harmonic filter, 1.4-2.5GHz high-power harmonic filter, 0.8-1.4GHz high-power circulator, 1.4-2.5GHz high-power circulator, 0.8-1.4GHz high-power load, 1.4-2.5GHz high-power load, 380VAC-DC switching power supply, DC-DC power supply voltage regulator module, MCU main monitoring module, power amplifier power supply bias module, A display module, a front panel control module, a fan power supply control module, a power detector and a temperature sensor; the input unidirectional directional coupler is connected to the ALC control module; the ALC control module is connected to the step attenuator module ; The step attenuator module is connected to the band-pass switch filter module; the band-pass switch filter module is connected to the pre-stage drive amplifier module; the pre-stage drive amplifier module is connected to the final high-power synthesis Amplifier module; the final high-power synthetic amplifier module is connected to the high-power bidirectional directional coupler; the high-power bidirectional directional coupler is connected to the high-power radio frequency switch; the high-power radio frequency switch is connected to the 0.8-1.4 GHz high-power harmonic filter and the 1.4-2.5GHz high-power harmonic filter; the 0.8-1.4GHz high-power harmonic filter is connected to the 0.8-1.4GHz high-power circulator; the 0.8-1.4 The GHz high-power circulator is connected to the 0.8-1.4GHz high-power load; the 1.4-2.5GHz high-power harmonic filter is connected to the 1.4-2.5GHz high-power circulator; the 1.4-2.5GHz high-power circulator Connect the 1.4-2.5GHz high-power load; the ALC control module, the high-power bidirectional directional coupler and the power detector form a closed loop; the input unidirectional directional coupler is connected in series with the power detector at the same time Send the power detection voltage value to the MCU main monitoring module; the MCU main monitoring module is connected to the power amplifier power supply bias module and a high-power radio frequency switch; the power amplifier power supply bias module is connected to the 380VAC-DC switching power supply; The DC-DC power supply voltage stabilization module is connected to the 380VAC-DC switching power supply; the front panel control module supplies power to the display screen module, the fan power supply control module, the main monitoring module, and the power amplifier through a Can line The bias module, the power detector and the temperature sensor are connected in parallel. In this embodiment, through high-power radio frequency switch, 0.8-1.4GHz high-power harmonic filter, 1.4-2.5GHz high-power harmonic filter, 0.8-1.4GHz high-power circulator, 1.4-2.5GHz high-power circulator 12. The 0.8-1.4GHz high-power load, 1.4-2.5GHz high-power load and the final high-power synthesis amplifier module form a two-stage output for the 0.8-2.5G working frequency, and realize the continuous wave output power greater than 500W, with continuous wave , pulse, pulse plus continuous wave three working modes, the RF open circuit at the output end can continue to work, and will not be damaged by total reflection frequency power, which solves the problem that the existing power loading system can only divide the working frequency into multiple segments, and the circulator The bandwidth is narrow, the power is small, and in the process of high-power micro-discharge test and verification of microwave devices, because the device generates micro-discharge, the power total reflection is formed, thereby damaging the technical problem of the chip of the power amplifier.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.
图1本发明实施例中提供的一种大功率微放电功率加载系统的一个实施例的结构示意图；Fig. 1 is a schematic structural view of an embodiment of a high-power micro-discharge power loading system provided in an embodiment of the present invention;
图2本发明实施例中提供的一种末级大功率合成放大器模块的一个实施例的结构示意图。FIG. 2 is a schematic structural diagram of an embodiment of a final-stage high-power synthesis amplifier module provided in an embodiment of the present invention.
具体实施方式Detailed ways
本发明实施例提供了一种大功率微放电功率加载系统，工作频率范围为0.8－2.5GHz，连续波输出功率大于500W，具备连续波，脉冲，脉冲加连续波三种工作模式，在输出端射频开路还能继续工作，并且不会被全反射频功率损坏。The embodiment of the present invention provides a high-power micro-discharge power loading system, the working frequency range is 0.8-2.5GHz, the continuous wave output power is greater than 500W, and it has three working modes: continuous wave, pulse, and pulse plus continuous wave. The RF open circuit can continue to work and will not be damaged by total reflected RF power.
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，下面所描述的实施例仅仅是本发明一部分实施例，而非全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
请参阅图1，本发明实施例中提供的一种大功率微放电功率加载系统的一个实施例包括：Please refer to Fig. 1, an embodiment of a kind of high-power micro-discharge power loading system provided in the embodiment of the present invention includes:
输入端单向定向耦合器1、ALC控制模块2、步进衰减器模块3、带通开关滤波器模块4、前级驱动放大器模块5、末级大功率合成放大器模块6、大功率双向定向耦合器7、大功率射频开关8、0.8－1.4GHz大功率谐波滤波器9、1.4－2.5GHz大功率谐波滤波器10、0.8－1.4GHz大功率环形器11、1.4－2.5GHz大功率环形器12、0.8－1.4GHz大功率负载13、1.4－2.5GHz大功率负载14、380VAC-DC开关电源15、DC-DC电源稳压模块16、MCU主监控模块17、功放供电偏置模块18、显示屏模块19、前面板控制模块20、风扇供电控制模块21、功率检波器22和温度传感器23；Input unidirectional directional coupler 1, ALC control module 2, step attenuator module 3, band-pass switch filter module 4, pre-stage drive amplifier module 5, final high-power synthesis amplifier module 6, high-power bidirectional directional coupling 7. High-power RF switch 8. 0.8-1.4GHz high-power harmonic filter 9. 1.4-2.5GHz high-power harmonic filter 10. 0.8-1.4GHz high-power circulator 11. 1.4-2.5GHz high-power ring 12, 0.8-1.4GHz high-power load 13, 1.4-2.5GHz high-power load 14, 380VAC-DC switching power supply 15, DC-DC power supply voltage stabilization module 16, MCU main monitoring module 17, power amplifier power supply bias module 18, Display module 19, front panel control module 20, fan power supply control module 21, power detector 22 and temperature sensor 23;
射频信号功率放大部分依次串联包括了输入端单向定向耦合器1、ALC控制模块2、步进衰减器模块3、带通开关滤波器模块4、前级驱动放大器模块5、末级大功率合成放大器模块6、大功率双向定向耦合器7、大功率射频开关8、0.8－1.4GHz大功率谐波滤波器9、1.4－2.5GHz大功率谐波滤波器10、0.8－1.4GHz大功率环形器11、1.4－2.5GHz大功率环形器12、0.8－1.4GHz大功率负载13、1.4－2.5GHz大功率负载14。供电、监控、显示、保护部份包括了380V AC-DC开关电源15、DC-DC稳压电源模块16、MCU主监控模块17、功放供电偏置模块18、显示屏模块19、前面板控制模块20、风扇供电控制模块21、功率检波器22和温度传感器23。The radio frequency signal power amplification part is serially connected in series, including input unidirectional directional coupler 1, ALC control module 2, step attenuator module 3, band-pass switch filter module 4, pre-stage drive amplifier module 5, final high-power synthesis Amplifier module 6, high-power two-way directional coupler 7, high-power RF switch 8, 0.8-1.4GHz high-power harmonic filter 9, 1.4-2.5GHz high-power harmonic filter 10, 0.8-1.4GHz high-power circulator 11. 1.4-2.5GHz high-power circulator 12. 0.8-1.4GHz high-power load 13. 1.4-2.5GHz high-power load 14. The power supply, monitoring, display, and protection parts include 380V AC-DC switching power supply 15, DC-DC regulated power supply module 16, MCU main monitoring module 17, power amplifier power supply bias module 18, display module 19, and front panel control module 20. A fan power supply control module 21 , a power detector 22 and a temperature sensor 23 .
输入端单向定向耦合器1连接ALC控制模块2；The unidirectional directional coupler 1 at the input end is connected to the ALC control module 2;
ALC控制模块2连接步进衰减器模块3；The ALC control module 2 is connected to the step attenuator module 3;
步进衰减器模块3连接带通开关滤波器模块4；The step attenuator module 3 is connected to the bandpass switch filter module 4;
带通开关滤波器模块4连接前级驱动放大器模块5；The bandpass switch filter module 4 is connected to the pre-stage drive amplifier module 5;
前级驱动放大器模块5连接末级大功率合成放大器模块6；The pre-stage drive amplifier module 5 is connected to the final stage high-power synthesis amplifier module 6;
前级驱动放大器模块5为末级大功率合成放大器模块6提供高增益与信号放大推动源。The pre-stage drive amplifier module 5 provides high gain and signal amplification driving source for the final high-power synthesis amplifier module 6 .
末级大功率合成放大器模块6连接大功率双向定向耦合器7；The final high-power synthesis amplifier module 6 is connected to the high-power two-way directional coupler 7;
大功率双向定向耦合器7连接大功率射频开关8；The high-power two-way directional coupler 7 is connected to the high-power radio frequency switch 8;
大功率射频开关8连接0.8－1.4GHz大功率谐波滤波器9和1.4－2.5GHz大功率谐波滤波器10；The high-power radio frequency switch 8 is connected to the 0.8-1.4GHz high-power harmonic filter 9 and the 1.4-2.5GHz high-power harmonic filter 10;
0.8－1.4GHz大功率谐波滤波器9连接0.8－1.4GHz大功率环形器11；0.8－1.4GHz大功率环形器11连接0.8－1.4GHz大功率负载13；0.8-1.4GHz high-power harmonic filter 9 is connected to 0.8-1.4GHz high-power circulator 11; 0.8-1.4GHz high-power circulator 11 is connected to 0.8-1.4GHz high-power load 13;
1.4－2.5GHz大功率谐波滤波器10连接1.4－2.5GHz大功率环形器12；1.4－2.5GHz大功率环形器12连接1.4－2.5GHz大功率负载14；1.4-2.5GHz high-power harmonic filter 10 is connected to 1.4-2.5GHz high-power circulator 12; 1.4-2.5GHz high-power circulator 12 is connected to 1.4-2.5GHz high-power load 14;
ALC控制模块2、大功率双向定向耦合器7和功率检波器22构成闭环；ALC control module 2, high-power bidirectional directional coupler 7 and power detector 22 form a closed loop;
ALC控制模块2与大功率双向定向耦合器7，功率检波器22形成闭环，通过对输出功率的正反向电压检测，从而实现输出功率值的限制设置，过功率，过驻波比等保护。The ALC control module 2 forms a closed loop with the high-power two-way directional coupler 7 and the power detector 22. By detecting the positive and negative voltages of the output power, the limit setting of the output power value, over-power, over-standing wave ratio and other protections are realized.
输入端单向定向耦合器1串联功率检波器22同时向MCU主监控模块17输送功率检测电压值；输入端单向定向耦合器1与功率检波器22实现过输入功率电压检测，输入端单向定向耦合器1和功率检波器22再向MCU主监控模块17输送电压值，输入端单向定向耦合器1和功率检波器22在前，MCU主监控模块17在后，输入端单向定向耦合器1和功率检波器22同时向MCU主监控模块17输送功率检测电压值。The unidirectional directional coupler 1 at the input end is connected in series with the power detector 22 to simultaneously transmit the power detection voltage value to the MCU main monitoring module 17; the unidirectional directional coupler 1 at the input end and the power detector 22 realize over-input power voltage detection, and the The directional coupler 1 and the power detector 22 then transmit the voltage value to the MCU main monitoring module 17, the input end unidirectional directional coupler 1 and the power detector 22 are in front, the MCU main monitoring module 17 is behind, and the input end is unidirectionally coupled The detector 1 and the power detector 22 transmit the power detection voltage value to the MCU main monitoring module 17 at the same time.
MCU主监控模块17连接功放供电偏置模块18和大功率射频开关8；The MCU main monitoring module 17 is connected to the power amplifier power supply bias module 18 and the high-power radio frequency switch 8;
MCU主监控模块17，用于通过判断输入功率的大小控制功放供电偏置模块18的开启和关断。The MCU main monitoring module 17 is used to control the on and off of the power amplifier power supply bias module 18 by judging the magnitude of the input power.
MCU主监控模块17，还用于对功率检波器22进行功率检测换算并且对大功率射频开关8进行频段切换。The MCU main monitoring module 17 is also used to perform power detection conversion on the power detector 22 and frequency band switching on the high-power radio frequency switch 8 .
MCU主监控模块17，还用于过功率保护和过驻波比保护。The MCU main monitoring module 17 is also used for over-power protection and over-standing wave ratio protection.
MCU主监控模块17判断输入功率的大小从而控制功放供电偏置模块18的开启与关断，从而实现过输入功率的警告与功放保护。The MCU main monitoring module 17 judges the magnitude of the input power to control the power amplifier power supply bias module 18 to be turned on and off, so as to realize the warning of over input power and the protection of the power amplifier.
功放供电偏置模块18连接380VAC-DC开关电源15；Power amplifier power supply bias module 18 is connected to 380VAC-DC switching power supply 15;
DC-DC电源稳压模块16连接380VAC-DC开关电源15；DC-DC电源稳压模块16，用于为控制电路提供对应的电压。The DC-DC power supply voltage stabilization module 16 is connected to the 380VAC-DC switching power supply 15; the DC-DC power supply voltage stabilization module 16 is used to provide corresponding voltage for the control circuit.
前面板控制模块20通过Can线与显示屏模块19、风扇供电控制模块21、主监控模块、功放供电偏置模块18、功率检波器22和温度传感器23并联。The front panel control module 20 is connected in parallel with the display module 19 , the fan power supply control module 21 , the main monitoring module, the power amplifier power supply bias module 18 , the power detector 22 and the temperature sensor 23 through the Can line.
步进衰减器模块3与前面板控制模块20实现系统的增益衰减调节与增益平坦度的调节，带通开关滤波器模块4分两段0.8－1.4G与1.4－2.5G，可以对输入信号的谐波，杂波进行抑制，同时也能很好地进行错段保，防止因为输入信号频段错误，而导致损坏后面的大功率环形器和大功率谐波滤波器。Step attenuator module 3 and front panel control module 20 realize the adjustment of gain attenuation and gain flatness of the system. Harmonics and clutter are suppressed, and at the same time, it can also perform wrong segment protection to prevent damage to the high-power circulator and high-power harmonic filter behind due to the wrong frequency band of the input signal.
进一步地，末级大功率合成放大器模块6包括：16路80W末级放大器204、3DB电桥203、4路功率合成器205和2路功率合成器206；Further, the final high-power synthesis amplifier module 6 includes: 16-way 80W final-stage amplifier 204, 3DB bridge 203, 4-way power combiner 205 and 2-way power combiner 206;
16路80W末级放大器204连接3DB电桥203；16-way 80W final stage amplifier 204 is connected to 3DB electric bridge 203;
3DB电桥203连接4路功率合成器205；The 3DB bridge 203 is connected to the 4-way power combiner 205;
4路功率合成器205连接2路功率合成器206。The 4-way power combiner 205 is connected to the 2-way power combiner 206 .
进一步地，末级大功率合成放大器模块6还包括：2路功分器201和4路功分器202；Further, the final high-power synthesis amplifier module 6 also includes: 2-way power splitter 201 and 4-way power splitter 202;
2路功分器201连接4路功分器202；The 2-way power divider 201 is connected to the 4-way power divider 202;
4路功分器202连接3DB电桥203。The 4-way power divider 202 is connected to the 3DB bridge 203 .
进一步地，输入端单向定向耦合器1连接射频信号输入接口。Further, the unidirectional directional coupler 1 at the input end is connected to the radio frequency signal input interface.
进一步地，0.8－1.4GHz大功率环形器11和1.4－2.5GHz大功率环形器12都连接射频信号输出接口。Further, both the 0.8-1.4GHz high-power circulator 11 and the 1.4-2.5GHz high-power circulator 12 are connected to the radio frequency signal output interface.
进一步地，输入端单向定向耦合器1和功率检波器22，用于实现过输入功率电压检测。Further, the unidirectional directional coupler 1 and the power detector 22 at the input end are used to realize over-input power voltage detection.
进一步地，功放供电偏置模块18，用于为各级功率放大器模块提供电源，并监控每路功放芯片的电流、栅压、漏压和温度，对功放芯片进行过流、过压和过温保护。Further, the power amplifier power supply bias module 18 is used to provide power for the power amplifier modules at all levels, and monitor the current, gate voltage, leakage voltage and temperature of each power amplifier chip, and perform overcurrent, overvoltage and overtemperature checks on the power amplifier chip. Protect.
380V AC-DC开关电源15、DC-DC稳压电源模块16、MCU主监控模块17、功放供电偏置模块18、显示屏模块19、前面板控制模块20、风扇供电控制模块21、功率检波器22、温度传感器23跟其它部件通过电源线和数据线连接。380V AC-DC switching power supply 15, DC-DC regulated power supply module 16, MCU main monitoring module 17, power amplifier power supply bias module 18, display module 19, front panel control module 20, fan power supply control module 21, power detector 22. The temperature sensor 23 is connected to other components through power lines and data lines.
本发明实施例提供的一款输出功率大于500W大功率S频段微放电功率加载系统，具备连续波，脉冲，脉冲加连续波三种工作模式，可实时调节输出功率，频率，增益，远程遥控开关，具有过压、过流、过驻波、过激励、过温、风扇断开保护功能。本功率加载系统具有优良的功率放大效果，能长时间稳定工作，非线性失真小等优点，抗过激励能力设备能持续24小时承受输入电平最高至2dBm，对系统性能和寿命无任何影响，抗负载失配能力能承受功率全反射，对系统性能和寿命无任何影响。本功率加载系统能很好地解决防止微波器件大功率微放电测试验证时，因为微波器件的功率容量，结构尺寸设计不足，发生微放电效应，造成射频功率全反射，损坏微放电功率加载系统的技术问题。A high-power S-band micro-discharge power loading system with an output power greater than 500W provided by the embodiment of the present invention has three working modes: continuous wave, pulse, and pulse plus continuous wave, and can adjust output power, frequency, gain, and remote control switch in real time. , with over-voltage, over-current, over-standing wave, over-excitation, over-temperature, fan disconnection protection functions. This power loading system has excellent power amplification effect, can work stably for a long time, and has the advantages of small nonlinear distortion. The anti-over-excitation capability equipment can withstand the input level up to 2dBm for 24 hours without any impact on system performance and life. The ability to resist load mismatch can withstand total reflection of power without any impact on system performance and life. This power loading system can well solve the problem of preventing high-power micro-discharge testing and verification of microwave devices. Due to the insufficient power capacity and structural size design of microwave devices, micro-discharge effects occur, resulting in total reflection of radio frequency power and damage to the micro-discharge power loading system. technical problem.
本发明实施例提供的一种宽带大功率微放电功率加载系统，其工作频率范围0.8－2.5GHz，连续波输出功率大于500W，功率加载系统在输出端射频开路还能继续工作，而系统不会被全反射频功率损坏。A broadband high-power micro-discharge power loading system provided by the embodiment of the present invention has a working frequency range of 0.8-2.5GHz and a continuous wave output power greater than 500W. The power loading system can continue to work when the output terminal is open in the radio frequency, and the system will not Damaged by Totally Reflected RF Power.
本发明实施例提供的微放电功率加载系统具有宽频带、高增益和高功率，能承受功率的全反射，还能继续工作，不损坏。功率加载系统工作频率为0.8－2.5GHz，射频输入输出端口阻抗为50Ω，连续波输出功率≥500W，功率增益≥57dB，增益平坦度≤±1.5dB，输出功率稳定度≤±0.25dB，长期增益稳定度≤1dBpp，功率增益调节范围25dB(数字调节，步进0.5dB)，谐波抑制≤-60dBc,杂散抑制≤-65dBc，输入驻波比≤1.3:1,输出驻波比≤1.4:1。The micro-discharge power loading system provided by the embodiment of the present invention has wide frequency band, high gain and high power, can withstand total reflection of power, and can continue to work without damage. The working frequency of the power loading system is 0.8-2.5GHz, the impedance of the RF input and output ports is 50Ω, the continuous wave output power is ≥500W, the power gain is ≥57dB, the gain flatness is ≤±1.5dB, the output power stability is ≤±0.25dB, and the long-term gain Stability ≤1dBpp, power gain adjustment range 25dB (digital adjustment, step 0.5dB), harmonic suppression ≤-60dBc, spurious suppression ≤-65dBc, input VSWR ≤1.3:1, output VSWR ≤1.4: 1.
本实施例中，通过大功率射频开关、0.8－1.4GHz大功率谐波滤波器、1.4－2.5GHz大功率谐波滤波器、0.8－1.4GHz大功率环形器、1.4－2.5GHz大功率环形器12、0.8－1.4GHz大功率负载、1.4－2.5GHz大功率负载和末级大功率合成放大器模块形成了对0.8－2.5G工作频率分两段输出实现了连续波输出功率大于500W，具备连续波，脉冲，脉冲加连续波三种工作模式，在输出端射频开路还能继续工作，并且不会被全反射频功率损坏，解决了现有的功率加载系统只能对工作频率分成多段，环形器的带宽窄，功率很小，并且在进行微波器件大功率微放电测试验证的过程中，因为器件产生微放电，形成功率全反射，从而损坏功率放大器的芯片的技术问题。In this embodiment, through high-power radio frequency switch, 0.8-1.4GHz high-power harmonic filter, 1.4-2.5GHz high-power harmonic filter, 0.8-1.4GHz high-power circulator, 1.4-2.5GHz high-power circulator 12. The 0.8-1.4GHz high-power load, 1.4-2.5GHz high-power load and the final high-power synthesis amplifier module form a two-stage output for the 0.8-2.5G working frequency, and realize the continuous wave output power greater than 500W, with continuous wave , pulse, pulse plus continuous wave three working modes, the RF open circuit at the output end can continue to work, and will not be damaged by total reflection frequency power, which solves the problem that the existing power loading system can only divide the working frequency into multiple segments, and the circulator The bandwidth is narrow, the power is small, and in the process of high-power micro-discharge test and verification of microwave devices, because the device generates micro-discharge, the power total reflection is formed, thereby damaging the technical problem of the chip of the power amplifier.
上面是对一种大功率微放电功率加载系统进行详细的描述，下面将对一种大功率微放电功率加载系统的末级大功率合成放大器模块进行详细的描述，请参阅图2，本发明实施例中提供的一种末级大功率合成放大器模块的一个实施例包括：The above is a detailed description of a high-power micro-discharge power loading system, and a detailed description of the final high-power synthetic amplifier module of a high-power micro-discharge power loading system will be described below. Please refer to Fig. 2, the present invention implements An embodiment of a kind of final stage high-power synthetic amplifier module provided in the example comprises:
2路功分器201、4路功分器202、3DB电桥203、80W末级放大器204、4路功率合成器205和2路功率合成器206。2-way power divider 201 , 4-way power divider 202 , 3DB bridge 203 , 80W final stage amplifier 204 , 4-way power combiner 205 and 2-way power combiner 206 .
末级大功率合成放大器模块6为本发明实施例中提供的一种大功率微放电功率加载系统的核心模块之一，16路的80W末级放大器204，首先经过3DB电桥203两两组合功率合成为8路，再经过4路功率合成器205合成为2路，再经过2路功率合成器206合成为1路的大功率输出，这是一个超大规模，超宽带的功率合成方式，合成功率达到800W以上。The final high-power synthesizing amplifier module 6 is one of the core modules of a high-power micro-discharge power loading system provided in the embodiment of the present invention. The 80W final amplifier 204 of 16 channels first passes through the 3DB bridge 203 to combine the power in pairs. Synthesized into 8 channels, then combined into 2 channels through 4-way power combiner 205, and then combined into 1-way high-power output through 2-way power combiner 206, this is a super-large-scale, ultra-wideband power combining method, the combined power Reach more than 800W.
380V AC-DC开关电源15主要是为了把高压380交流电转化为直流电压27V提供给系统使用，DC-DC电源稳压模块16主要是为控制电路提供相应的工作电压。MCU主监控模块17主要是对功率检波器22进行功率检测换算，还有对大功率开关进行频段切换。功放供电偏置板18从AC-DC开关电源得到27V工作电压为各级功率放大器模块提供电源，其中各级功率放大器模块指前级和末级功放模块，并监控每路功放芯片的电流，栅压，漏压，温度，对功放芯片进行过流，过压，过温保护，功放芯片指前级和末级功放模块里面的放大器芯片。前面板控制模块20通过Can线与显示屏模块19，风扇供电控制模块21，主监控模块17，功放偏置模块18，功率检波器22，温度传感器23并联起来，把正向功率信息，反向功率信息，故障保护信息显示到显示屏上，还有与面板的旋钮相连，可以对功率加载系统的增益、输出功率和频率进行设置。The 380V AC-DC switching power supply 15 is mainly to convert the high-voltage 380V AC power into a DC voltage of 27V for the system, and the DC-DC power supply voltage stabilization module 16 is mainly to provide the corresponding working voltage for the control circuit. The MCU main monitoring module 17 mainly performs power detection and conversion on the power detector 22, and also performs frequency band switching on the high-power switch. The power amplifier power supply bias board 18 obtains 27V working voltage from the AC-DC switching power supply to provide power for the power amplifier modules at all levels, wherein the power amplifier modules at all levels refer to the front-stage and final-stage power amplifier modules, and monitor the current of each power amplifier chip. Voltage, leakage voltage, temperature, over-current, over-voltage, over-temperature protection for the power amplifier chip, the power amplifier chip refers to the amplifier chip in the pre-stage and final-stage power amplifier modules. The front panel control module 20 is connected in parallel with the display module 19, the fan power supply control module 21, the main monitoring module 17, the power amplifier bias module 18, the power detector 22, and the temperature sensor 23 through the Can line, and the forward power information and the reverse The power information and fault protection information are displayed on the display screen, and the knobs connected to the panel can be used to set the gain, output power and frequency of the power loading system.
大功率射频开关8与0.8－1.4GHz大功率谐波滤波器9、1.4－2.5GHz大功率谐波滤波器10、0.8－1.4GHz大功率环形器11、1.4－2.5GHz大功率环形器12、0.8－1.4GHz大功率负载13、1.4－2.5GHz大功率负载14形了对0.8－2.5GHz的分两段输出，由于0.8－1.25GHz频段的谐波落在0.8－2.5GHz工作频段内，要想实现更高的谐波抑制，必须分成两段才可以实现，所在采用了分成0.8－1.4GHz大功率谐波滤波器9、1.4－2.5GHz大功率谐波滤波器10频段设换的方法。0.8－1.4GHz大功率环形器11、1.4－2.5GHz大功率环形器12与0.8－1.4GHz大功率负载13、1.4－2.5GHz大功率负载14的组合更是打破了现有环形器的带宽窄，功率小等缺陷。要把0.8－2.5GHz工作频段加大功率的，高隔离的环形器做成单段，已知的技术只能分成多段，功率也很小，本微放电功率加载系统把0.8－2.5GHz工作频段分成两段就实现了环形器的功率容量更是高达1000W，隔离度大于15dB，损耗小于0.6dB。0.8－1.4GHz大功率环形器11、1.4－2.5GHz大功率环形器12与0.8－1.4GHz大功率负载13、1.4－2.5GHz大功率负载14，解决了微放电功率加载系统在进行微波器件大功率微放电测试验证的过程中，不会因为器件产生微放电，形成功率全反射，从而损坏功率放大器的芯片的技术问题。High-power RF switch 8 and 0.8-1.4GHz high-power harmonic filter 9, 1.4-2.5GHz high-power harmonic filter 10, 0.8-1.4GHz high-power circulator 11, 1.4-2.5GHz high-power circulator 12, The 0.8-1.4GHz high-power load 13 and the 1.4-2.5GHz high-power load 14 form two-stage output for 0.8-2.5GHz. Since the harmonics of the 0.8-1.25GHz frequency band fall within the 0.8-2.5GHz working frequency band, it is necessary to If you want to achieve higher harmonic suppression, you must divide it into two sections. The place adopts the method of dividing into 0.8-1.4GHz high-power harmonic filter 9 and 1.4-2.5GHz high-power harmonic filter 10 frequency bands. The combination of 0.8-1.4GHz high-power circulator 11, 1.4-2.5GHz high-power circulator 12 and 0.8-1.4GHz high-power load 13, 1.4-2.5GHz high-power load 14 breaks the narrow bandwidth of existing circulators , low power and other defects. It is necessary to increase the power of the 0.8-2.5GHz working frequency band and make a high-isolation circulator into a single segment. The known technology can only be divided into multiple segments, and the power is also very small. This micro-discharge power loading system uses the 0.8-2.5GHz working frequency band Divided into two sections, the power capacity of the circulator is as high as 1000W, the isolation is greater than 15dB, and the loss is less than 0.6dB. 0.8-1.4GHz high-power circulator 11, 1.4-2.5GHz high-power circulator 12 and 0.8-1.4GHz high-power load 13, 1.4-2.5GHz high-power load 14, which solves the problem of micro-discharge power loading system in the microwave device In the process of power micro-discharge test and verification, there will be no technical problem that the chip of the power amplifier will be damaged due to the micro-discharge of the device and the formation of total reflection of power.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
以上，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Above, the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
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