W频段机场异物探测雷达收发前端  

A W-band T/R Front-end for Airport Foreign Body Detection Radars

作　　者：裴乃昌[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2013年第10期1357-1361,共5页Telecommunication Engineering

摘　　要：主要介绍了一种用于机场异物探测雷达的W频段调频连续波(FMCW)收发前端的研究工作。基于波导T形接头的等效计算公式,对W频段波导合成电路进行了集中参数的电路建模,通过优化设计波导合成电路的参数,提高了波导合成电路的容差特性,解决了W频段波导功率合成电路加工精度要求高的问题,实现了W频段4路功率合成;采用低损耗的石英基材设计开发了微带薄膜滤波器技术,实现了W频段FMCW雷达接收前端的一体化集成设计;通过对低噪声放大器芯片键和金丝的匹配设计,实现了W频段收发前端的低噪声接收。最终实现的W频段FMCW收发前端的发射功率优于360 mW,接收机噪声系数优于5 dB。研制的收发前端为W频段FMCW雷达提供了一种有效的射频前端的解决方案。The research work on a W-band frequency modulation continuous wave（FMCW） transceiver front-end for airport foreign body detection radars is introduced. By modeling the lumped-parameter equivalent circuit model of waveguide power combining circuit, the strict demand of machining accuracy of W-band waveguide circuits is satisfied and 4-channel power combination in W-band is achieved. Through the use of quartz thin-film filter technology,the integration of W-band receiver front-end FMCW radar is realized. By matching design of low noise amplifier chip bonding and wire, the low noise receiving of W- band transceiver front-end is realized. Finally the transmitting power of W-band FMCW transceiver front- end is better than 360 mW, and receiver noise coefficient is better than 5 dB. The designed transceiver pro- vides an effective solution to RF front-end for W-baud FMCW radars.

关 键 词：机场异物探测雷达 W频段 调频连续波 收发前端 功率合成 石英薄膜滤波器 

分 类 号：TN80[电子电信—信息与通信工程]