【摘要】 为了提高射频连接器的传输特性，提出了一种带空气腔的超小型推入式（subminiature micro push-on, SSMP）射频同轴连接器。首先，利用Ansys HFSS仿真软件对连接器进行建模，通过共面补偿和锥体补偿的方式对其结构进行优化；其次，通过时域反射（time-domain reflectometry, TDR）技术对连接器的传输特性参数进行仿真计算；然后，对连接器阳头部分进行优化设计，在连接器阳头部分增设空气腔；最后，采用高抗补偿法对射频连接器与微带线级联结构进行仿真优化。结果表明：未带有空气腔的连接器在DC～40 GHz频段范围内回波损耗S₁₁<-28 dB、插入损耗S₂₁>-0.03 dB;空气腔长度为0.345 mm的连接器在DC～40 GHz频段范围内S₁₁<-31 dB、S₂₁>-0.036 dB;连接器与微带线级联结构在DC～40 GHz频段范围内S₁₁<-21.5 dB、S₂₁>-0.62 dB。提出的带有空气腔的连接器结构提高了连接器的射频传输特性，可为连接器的设计提供理论参考。更多还原

【Abstract】 To improve the transmission characteristics of RF connectors, a subminiature micro push-on（SSMP） RF coaxial connector with an air cavity was proposed. First, the connector was modeled using Ansys HFSS simulation software. The structure was optimized through coplanar and conical compensation methods; Next, the transmission characteristic parameters of the connector were simulated and calculated using time-domain reflectometer（TDR） technology; Then, the design of the male part of the connector was optimized by adding an air cavity to it; Finally, the cascade of the RF connector and microstrip line were optimized using a high impedance compensation method. The results show that the connector without an air cavity achieves a return loss S₁₁ <-28 dB and an insertion loss S₂₁ >-0.03 dB within the DC to 40 GHz frequency range. The connector with an air cavity length of 0.345 mm achieves an S₁₁ <-31 dB and an S₂₁ >-0.036 dB within the same frequency range. The cascaded structure of the connector and microstrip line achieves an S₁₁ <-21.5 dB and an S₂₁ >-0.62 dB in the DC to 40 GHz frequency range. The proposed connector structure with an air cavity improves the RF transmission characteristics of the connector and can provide theoretical reference for the design of connectors.更多还原