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X-band 2000-watt solid-state transmitter and system

A solid-state transmitter and frequency band technology, used in electronic countermeasures, radar simulators, and radar fields, it can solve problems such as less reporting, and achieve the effects of easy integration, low transmission loss, and high Q value.

Active Publication Date: 2020-04-10
NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, in the field of power synthesis, especially the invention and equipment of active transmitters with kilowatt-level output are seldom reported.

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  • X-band 2000-watt solid-state transmitter and system
  • X-band 2000-watt solid-state transmitter and system
  • X-band 2000-watt solid-state transmitter and system

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Embodiment Construction

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiment is only one embodiment of the present invention, not all embodiments. 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.

[0063] At present, there are many synthesis methods for kilowatt-level high-power X-band solid-state power amplifiers, including Wilkinson microstrip synthesis and waveguide synthesis. We have adopted a combination of microstrip and waveguide. Both use SIW technology to design the X-band 2000 watt solid-state power amplifier. SIW is a new type of transmission line between metal waveguide and microstrip line and other planar transmission lines. It not only has the pr...

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Abstract

The invention discloses an X-band 2000-watt solid-state transmitter and system. The solid-state transmitter comprises a pre-stage amplifier assembly, an SIW power divider module, a final-stage amplifier assembly and an SIW power combiner module which are connected in sequence. The SIW power divider module adopts a four-stage structure. An E-plane 3dB branch waveguide directional coupler is used asa first stage and a second stage. A double-antipode fin line type waveguide-SIW converter is used as a third stage, and an SIW-double microstrip converter is used as a fourth stage. The network composition of an SIW power combiner module is the same as that of the SIW power divider module, and the work engineering is the inverse process of the SIW power divider module. According to the invention,the SIW technology is adopted to design the X-band power distributor / synthesizer. SIW is a novel transmission line between planar transmission lines such as a metal waveguide and a microstrip line, has transmission characteristics similar to those of a traditional metal waveguide, has the advantages of small transmission loss, high Q value and the like of the metal waveguide. The invention has the advantages of a planar circuit, and is easy to integrate with other planar circuits.

Description

technical field [0001] The invention relates to an X-band 2000-watt solid-state transmitter and a system thereof, and belongs to the technical fields of radar, radar simulator, and electronic countermeasures. Background technique [0002] At present, the transmitter units in radar, radar simulators, electronic countermeasures and other fields mainly include traveling wave tube transmitters and solid-state amplifier transmitters. Solid-state amplifier transmitters have high reliability, high stability, long life, and The advantages of wide frequency band, fast start-up, simple and safe operation, and fault softening have gradually become the dominant development direction of the transmitting unit in the radar system. [0003] For solid-state amplifier transmitters, in order to obtain a power output of thousands of watts or even tens of kilowatts, we usually use the method of power synthesis to synthesize multiple lower-power amplifier signals into the required high-power radi...

Claims

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Application Information

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IPC IPC(8): G01S7/282
CPCG01S7/282
Inventor 沈金亮李浩杨现志
Owner NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH