板对板射频同轴连接器界面的设计

发布时间：2018-06-23 13:48

  本文选题：板对板射频同轴连接器 + 转接器　； 参考：《南京航空航天大学》2014年硕士论文

【摘要】：随着无线通讯技术的不断发展,板对板射频同轴连接器在无线系统模块互联中的应用越来越广泛,鉴于目前无线设备市场发展的趋势对连接器的要求是更小、更轻、更廉价,板对板同轴连接器也向着大容差、高功率、小型化的方向发展。目前,我国板对板射频同轴连接器的产品还比较少,所以研发具有自主知识产权的板对板同轴连接器的界面研究与设计具有重要的工程应用价值。本文的主要研究内容如下:1.研究了射频同轴连接器几种常用的阻抗不连续性补偿方法,通过算例验证了补偿方法的正确性,并利用HFSS的时域功能,针对一款板对板连接器的焊盘结构进行了优化设计。2.在分析对比了现有板对板同轴连接器界面的优缺点的基础上,提出了一种新的板对板连接器界面,并根据该新界面设计了一款加长型SMP连接器,该连接器具有轴向容差大的优点,其轴向容差可达1.2mm,是传统SMP板对板连接器的两倍。通过实物的加工和测试,结果表明该连接器在DC~6GHz具有良好的电气性能,满足设计指标。3.根据加长型SMP界面,设计了一款加长型SMP-SMA3.5转接器,文中给出了详细的设计过程,由于内导体尺寸变换造成的台阶面和绝缘支撑引入的台阶面分别运用了错位补偿和共面补偿方法,HFSS的仿真结果表明,经过补偿后的连接器的驻波比(VSWR)得到明显改善。经过实物测试,结果表明在DC~10GHz频率范围内该转接器的驻波比(VSWR)均在1.2以内,满足指标要求。
[Abstract]:With the development of wireless communication technology, board to board RF coaxial connectors are more and more widely used in wireless system module interconnection. In view of the current trend of wireless equipment development, the requirements for connectors are smaller, lighter and cheaper. Plate-to-board coaxial connectors are also developing towards large tolerance, high power and miniaturization. At present, there are few products of radio-frequency coaxial connectors in China, so the research and design of the interface of coaxial connectors with independent intellectual property has important engineering application value. The main contents of this paper are as follows: 1. Several commonly used impedance discontinuity compensation methods for RF coaxial connectors are studied. The correctness of the compensation method is verified by an example. Using the time domain function of HFSS, the paper optimizes the design of the pad structure of a plate-to-plate connector. On the basis of analyzing and comparing the advantages and disadvantages of the existing plate to plate coaxial connector interface, a new board to board connector interface is proposed, and an extended SMP connector is designed according to the new interface. The connector has the advantage of large axial tolerance, and its axial tolerance can reach 1.2 mm, which is twice as much as that of the traditional SMP board connector. Through processing and testing, the results show that the connector has good electrical performance at DCG 6GHz and meets the design index of .3. According to the extended SMP interface, an extended SMP-SMA 3.5 adapter is designed, and the detailed design process is given in this paper. The results of HFSS simulation show that the standing wave ratio (VSWR) of the connectors after compensation has been improved obviously by using the offset compensation and coplanar compensation method respectively for the step surface caused by the inner conductor dimension change and the step surface introduced by the insulation support. The results show that the standing wave ratio (VSWR) of the converter is within 1.2 in the frequency range of 10 GHz, which meets the requirements of the target.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM503.5
，

本文编号：2057319