V频段小型化集成接收前端技术

Miniaturized integrated receiving front-end in V-band

V频段小型化集成接收前端主要实现对V频段毫米波信号的低驻波、低噪声接收和产品小型化。采用多功能芯片与混合集成技术,实现了毫米波接收信道的小型化集成。引进了微带正交耦合器,构成平衡式分布放大优化射频接收端口输入驻波系数的设计思路,替换了体积笨重的波导宽带隔离器,减小了毫米波接收前端体积和重量。通过对V频段波导微带过渡探针的容错性设计,降低了V频段毫米波接收前端的组装难度,提高了接收前端的一次组装合格率。最终实现批量化V频段小型化集成接收前端射频的输入驻波系数优于1.6,噪声系数优于4.2 dB,外形尺寸(含插座)33.4 mm×30 mm×12 mm。

A V-band miniaturized integrated receiving front-end mainly realizes the low Voltage Standing Wave Ratio(VSWR),low noise and miniaturization of V-band millimeter wave signal.In this paper,the miniaturized integration of millimeter wave receiver channel is realized by using multi-function chip and hybrid integration technology.A microstrip quadrature coupler is introduced to form a balanced distribution amplifier to optimize the input coefficient of the radio frequency receiving port,replacing the bulky waveguide broadband isolator,which reduces the volume and weight of the millimeter wave receiver front-end.Through the fault tolerance design of the transition probe of V-band waveguide,the assembly difficulty in the receiving front of the V-band is reduced,and the one-time assembly qualification rate of the front-end is improved.The input standing wave coefficient of the quantization V-band miniaturized integrated receiving front-end Radio Frequency(RF)is better than 1.6,the noise coefficient is better than 4.2 dB,and the external dimension(including the socket)is 33.4 mm×30 mm×12 mm.The V-band miniaturized integrated receiving front-end provides an effective solution for the integrated design and quantitative assembly production of V-band millimeter-wave miniaturization.