中国空间科学技术

• • 上一篇    下一篇

C 波段全场效应晶体管化宽带微波接收机

孙大铭;   

  1. 西安空间无线电技术研究所,
  • 发布日期:1990-10-25

ALL-FET LOW-NOISE WIDE-BAND MICROWAVE RECEIVER OF C-BAND

Sun Daming (Xi'an Institute of Space Radio Engineering)   

  • Published:1990-10-25

摘要： 介绍一个全场效应晶体管化 C 波段卫星转发器用微波接收机的方案,并给出微波通道部分的实验结果,其中采用元器件均以国内1986年生产,现空间仍在用的高可靠性器件为设计依据和实验样管。实验结果与法国汤姆逊公司1986年为我国研制生产的 C 波段接收机(以下简称法国接收机)相比,电气指标均能达到该公司产品水平,同时具有结构简单、体积小、低功耗等优点。该方案同样适于 Ku波段应用。

关键词: 场效应晶体管, 微波接收机, 应用

Abstract: This paper describes a scheme of an all-FET C-band low-noisewide-band microwave receiver for use in communication satellite.The recei-ver covers the full spectrum assigned to the satellite communication with about 68.5 dB power gain and noise figure of less than 2.5 dB.To prove the reali-zability of this receiver scheme,several microwave components,such as low-noise amplifiers,band-pass and band-stop filters,FET balanced mixer,gain-compensation circuits etc have been developed.All of the elements and FETdevices used in the experiments are native products.The test results are presentedin this paper too.By means of the advantages which the FETs offered invarious microwave applications,we can realize a microwave receiver with smallsize,light wight,low power consumption and good retransmission performance.

Key words: Subject Term Field effect transistor, Microwave receiver, Application.