Design Of Antenna Feedline In Mobile Remote Sensing Receive System

With fast development of space electronics technology,the geostationary satellites system are used broadly,at the same time,the sun synchronous orbit (polar orbit)satellite system are developed greatly in home and foreign.The technology of remote sensing satellite is used in science experimentation,earth resource exploration,environment survey,cropper cultivate,ocean and weather information capture,disaster exploration,etc.and huge military value in military application.The antenna of ground station in remote sensing receive system isa high precision and fast move system,it has the capability to find,auto aim and track satellites.Mobile remote sensing receive system can fastly transfer to interest area,it can used for military affairs and civil,one hand,it can receive remote sensing satellite data in home,on the other hand,it can receive some remote sensing satellite data in foreign,so it can be used in many whys.A S/X-band vehicular folding antenna feedline system of fast and mobile for remote sensing receive is designed.We calculate s parameter with mode matching method,calculate the amplitude and phase characteristic of corrugated horn with expansion of spherical wave function,calculate radicalization characteristic of antenna with PO method,and calculate it use HFSS and FEKO software.Antenna have high gain,low noise temperature characteristic under test in experimentation,and it can precision tracking at S-band,high efficiency receive at S/X-band.The measurement shows good agreement between the theoretical analysis and experiment results. Main-reflector and vice-reflector of antenna can auto-deploying and auto stowing,it has well flexibility performance.The systemi receiveing performance compared with same aperture of antenna in the lead in home.The system G/T is identical to similar system in foreign.