A radio frequency switch device

Abstract

The present invention provides a radio frequency switch device, comprising a housing, a first port and a second port arranged on a first side of the housing, a first paddle and a second paddle arranged in the housing, A first coupling member and a second coupling member disposed in the casing; the first coupling member is close to the third side of the casing, and the first end of the first coupling member extends from the third side of the casing The two sides are extended for connecting with the filter through the first line, the second end of the first coupling member is connected with the first port, the first coupling member has a first coupling position, and the first coupling position is Two first coupling points are formed on both sides. The invention switches smoothly, can realize high intermodulation and high power tolerance of the filter cavity, and greatly meets the communication index requirements of high intermodulation and high power in practical engineering.

Description

【Technical field】 [0001] The invention relates to the field of radio frequency communication, in particular to a radio frequency switch device. 【Background technique】 [0002] At present, there are usually two types of RF switches used to control the opening or closing of the filter: one is an RF switch based on semiconductor electronic devices such as PIN diodes, transistors, or field effect transistors. The advantage of this type of RF switch is that the switching speed is fast , can achieve nanosecond level. However, this kind of radio frequency switch has high loss and low power, and the intermodulation of the filter cavity is not good. The second is the mechanical radio frequency switch based on relay control. The switching speed is fast, usually reaching the level of microseconds to milliseconds, but there is an unsteady state with a large rise and fall time, and the switching function may be realized by whether the contacts are in contact. The contacts are severely ...

AI Technical Summary

Problems solved by technology

However, this kind of RF switch has high loss and low power, and the intermodulation of the filter cavity is not good.

The second is the mechanical radio frequency switch based on relay control. The switching speed is fast, usually reaching the level of microseconds to milliseconds, but there is an unsteady state with a large rise and fall time, and the switching function may be realized by whether the contacts are in contact. Serious wear and tear on the contacts, easy to produce burrs, will cause poor intermodulation of the filter cavity

The above two commonly used RF switches are limited in high-intermodulation and high-power communication systems due to their limitations in intermodulation and power, and are often difficult to meet the requirements of actual engineering indicators.

Images