| 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。 |
| 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 |
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| A W-band T/R front-end for airport foreign body detection radars |
| PEI Nai-chang |
| () |
| Abstract: |
| 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 provides an effective solution to RF front-end for W-band FMCW radars. |
| Key words: airport foreign body detection radar W-band FMCW T/R module power combining quartz thin-film filter |
