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Design method for pre-stage solid-state microwave source of low-hybrid wave system

A design method and microwave source technology, applied in the field of low clutter systems, can solve the problems of low power, inability to phase lock, and frequency drift, etc., and achieve the effects of high power, high gain, and high integration.

Inactive Publication Date: 2016-10-26
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] ①The power generated by the VCO is small, only 3dBm.
[0005] ②Unable to lock the phase, the resulting 2.45GHz frequency is unstable, and is susceptible to frequency drift due to interference from external factors such as temperature
[0007] ④No reference phase output
[0008] The power cannot be adjusted internally, and the PIN switch cannot be disconnected by itself in case of accident.

Method used

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  • Design method for pre-stage solid-state microwave source of low-hybrid wave system
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  • Design method for pre-stage solid-state microwave source of low-hybrid wave system

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Embodiment Construction

[0024] Such as figure 2 As shown, the design method of the front-stage solid-state microwave source of the low clutter system includes a phase-locked source 1, a first-stage power amplifier 2, a programmable voltage attenuator 3, a second-stage power amplifier 5, a PIN quick control switch 4, a power divider 6, Coupler 7, wave detection module 8, control module 9 and power supply regulated power supply 10, the output end of phase-locked source 1 is successively connected with primary power amplifier 2, program-controlled voltage attenuator 3, PIN fast control switch 4, secondary power amplifier 5 and power amplifier The two output terminals of the power divider 6 are power output terminals, the coupler 7 adopts the form of microstrip coupling, the coupled output terminal of the coupler 7 is used as a reference phase, and the direct output terminal of the coupler 7 is connected with the detection Module 8 is connected, the output end of detection module 8 is connected with con...

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Abstract

The invention discloses a design method for a pre-stage solid-state microwave source of a low-hybrid wave system, wherein an output end of a lock phase source is successively connected to a first-level power amplifier, a program-control voltage attenuator, a PIN rapid-control switch, a second-level power amplifier and a power divider; two output ends of the power divider are power output ends; a coupler adopts a micro-strip coupling form; a coupling output end of the coupler is used as a reference phase; a direct-through output end of the coupler is connected to a wave detection module; an output end of the wave detection module is connected to a control module; and an output end of the control module is connected to the program-control voltage attenuator and the PIN rapid-control switch respectively. The method disclosed by the invention is characterized in that an original three-level power amplifier structure is replaced by a two-level power amplifier structure; and output can reach 5W which is higher than the output of the three-level power amplifier structure because of increase of output power of the lock phase source and development of solid-state microwave chip technologies. The integration level, gains and power become higher.

Description

technical field [0001] The invention relates to the technical field of low clutter systems, in particular to a design method for a front-stage solid-state microwave source of a low clutter system. Background technique [0002] The existing technology consists of a voltage-controlled oscillation source (VCO), a first-stage power amplifier, a PIN fast control switch, a second-stage power amplifier, a third-stage power amplifier, a power divider and a stabilized power supply module. Such as figure 1 As shown, first the VCO generates the initial frequency and power, and after three stages of amplification, a 2.45GHz 4W power source is generated, which is output by the power splitter. [0003] Prior art has following shortcoming: [0004] ①The power generated by the VCO is small, only 3dBm. [0005] ②Unable to lock the phase, the resulting 2.45GHz frequency is unstable, and is susceptible to frequency drift due to interference from external factors such as temperature. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/36
Inventor 朱梁单家芳刘甫坤唐宇刚王中丽贾华马文东杨永冯建强吴则革程敏彭承尧
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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