Single-pole double-throw coplanar waveguide type radio frequency mechanical switch structure

Abstract

The invention provides a single-pole double-throw coplanar waveguide type radio frequency mechanical switch structure. The switch structure comprises a radio frequency substrate, a transmission reed, two radio frequency reeds and three microstrip sheets, wherein the two radio frequency reeds are respectively a first radio frequency reed and a second radio frequency reed, the three microstrip pieces are respectively fixed on the radio frequency substrate, and the three microstrip pieces are mutually independent; the transmission reed is fixedly connected to the radio frequency substrate, the transmission reed extends towards the microstrip pieces to form two front extending arms, ends of the two front extending arms are located on the upper sides of the three microstrip pieces respectively, stress points matched with an electromagnetic system are arranged on the two front extending arms respectively, and the first radio frequency reed and the second radio frequency reed are arranged on the lower sides of the two front extending arms respectively. According to the switch structure, a circular coaxial transmission line and a rectangular transmission line of a traditional radio frequency mechanical switch are replaced by microstrip surfaces of a coplanar waveguide structure, more reliable welding type installation is adopted, the size of the radio frequency mechanical switch is greatly reduced, and meanwhile it is guaranteed that the radio frequency mechanical switch structure has the advantages of being high in linearity, low in insertion loss and high in power resistant index.

Description

technical field [0001] The invention relates to a single pole double throw coplanar waveguide type radio frequency mechanical switch structure. Background technique [0002] The radio frequency mechanical switch is mainly composed of three parts: signal control system, electromagnetic conversion system and microwave transmission system. The microwave transmission system is the actuator to realize microwave signal transmission / switching, and is the core of the radio frequency mechanical switch. An excellent microwave transmission system is the key to realize the high performance of the relay. The microwave transmission system of the traditional switch is composed of a rectangular transmission line microwave cavity and a circular coaxial transmission line connector assembly. The external dimensions of this type of radio frequency mechanical switch greatly restrict the development of products. [0003] The miniaturization design of the RF mechanical switch structure has been ...

AI Technical Summary

Problems solved by technology

Simplify and compress the structure of each component, but limited by the size of the connector interface, the anti-vibration performance design of the moving parts, and the requirements for high power indicators, the miniaturization and integration indicators cannot form a qualitative breakthrough

[0005] The existing RF mechanical switch replaces the traditional standard connector size interface with solder pins, which effectively reduces the overall size of the switch, but the size of the switch body cannot be miniaturized and improved

Under the development trend of miniaturization of the whole machine system, it still cannot meet the requirements

Images