摘要
模拟转发器作为卫星通信地球站设备联试、调机、测试、检修的专用设备,具有变频及信号转发功能,主要用于模拟射频信号的空间损耗,配合其他设备在不经过卫星转发的情况下模拟信号的传输过程。介绍了一种Ku波段模拟转发器的设计方法,针对技术难点对其主要模块进行了分析,包括本振源、腔体滤波器、监控单元及电调衰减器,最后给出测试结果,证明了设计的可行性。
As a special device for test,examination and repair of SATCOM earth station,simulated transponder has the functions of frequency conversion and signal transmission.It can simulate the space loss of radio frequency signals as well as the transmission process without satellite relay with the coorperation of other devices.A design of Ku-band simulated transponder is presented,and its key parts such as local oscillator,cavity filter,monitor and electrically controlled attenuator are analyzed in detail.Finally,test results are presented to illustrate the feasibility of the scheme.
出处
《无线电通信技术》
2010年第4期46-47,64,共3页
Radio Communications Technology
关键词
KU波段
模拟转发器
本振源
腔体滤波器
Ku-band
simulated transponder
local oscillator
cavity filter
