Pressure Narrow Rectangular Waveguide Antenna Design

All kinds of radio-communication and broadcast and radar and navigation systemwork by radio wave. Transmitting and receiving radio depends on antenna. Antenna isexit and entrance of radio wave.The high frequence electric current of transmitter tip istransmitted to transmit antenna by feed-in.Transmit antenna changes high frequenceelectric current into electromagnetric wave,it sends out to Scheduled exposure.Whereas, receiving antenna changes radio wave into electric current from a certaintydirection,send it to import loop of the receiving engine.The dissertation describes the background of the subject and the applicationvalue,study trend inside and outside of nation,brief introduces the theory of rectanglehatch guide radiate unit.Account for the engineering design of rectangle hatch guidearray antenna, the technique of impedance matching and wave scanning on therectangle compact hatch guide unit,the design theory of parallel feed power assign net-work, the technique research of array antenna calibration.The text has finished materialtest result and engineering appliance.During the project developing, the design of the rectangle compact hatch guideunit,we adopted the design idea of the less volumn and more high security,meet therequest wide-band and wide-angle.The array antenna makes use of rectangle compacthatch guide unit,the configuration of vertical plane has been used a parlicular jointmethod,it join the radiant unit and power assign network to a body, power assignnetwork is double deck air stripline,due to these techniques have been used,the frameis very collect,and it is very reliable.The antenna array is put into an airproof cabin,theradiancy face of antenna is covered by a radome,the antenna meets the request ofairproof,we adapt the antenna fulfilling the request of dampproof and rejecting mildewand rejecting salt reek.We have adopted the calibration method which composes ofinside field and outside field,this method will create amplitude value and phase valuewhen the radar is running.In this subject, I took the responsibility of reasoning the project, analyzing thesystem performance, testing the system, mainly carrying out the design of the rectanglecompact hatch guide array antenna,the research of impedance matching and wavescanning,array antenna the all and the one designing and researching.We had finished the debugging and research by three years, the project has passed expertise appraisal,achieved the demand and gained good performance expected before.