High-reliability coaxial load

Abstract

The invention discloses a high-reliability coaxial load, which comprises a joint, a pin conductor, an insulator, a microstrip resistor, a baffle, a cover plate, a shell, a clamp spring and a washer, wherein the shell is a hollow step shaft; a small-diameter end of the shell is connected with a microwave transmission device through the joint; the outer side of the small-diameter end of the shell issleeved with the washer for damping and buffering; a counter bore for mounting the clamp spring is arranged in the outer side of the shell; the outer side and the inner side of a large-diameter end of the shell are fixedly connected with the cover plate and the baffle separately; and the pin conductor is coaxially arranged in the shell in a penetrating manner and is connected with the insulator and the microstrip resistor separately. Through the cooperation of the joint, the pin conductor, the insulator, the microstrip resistor, the baffle, the cover plate, the shell, the clamp spring and thewasher, the reliability of a product is improved, the microwave property is optimized and the defects that traditional coaxial transmission line and microstrip resistor are easy to break and the transmission path is not continuous are compensated.

Description

technical field [0001] The invention relates to a highly reliable coaxial load and belongs to the technical field of coaxial loads. Background technique [0002] The coaxial load is a key device to realize the absorption of microwave energy in the radio frequency signal transmission path, and it is used in many systems such as spacecraft communication systems. In a microwave circuit, a matched microwave load can effectively isolate the reflected wave signal and absorb harmful power in time to achieve the purpose of protecting the stable operation of the circuit system. Coaxial loads are used more and more in military fields, such as radar, electronic countermeasures, satellite communications, rocket telemetry and remote control, and high-frequency testing. In terms of civilian use, such as mobile communications, cable TV, satellite navigation, etc., it has also been widely used. [0003] The basic structure of the coaxial load is a short-circuited transmission line, includ...

AI Technical Summary

Problems solved by technology

[0003] The basic structure of the coaxial load is a short-circuited transmission line, including three parts: the coaxial connector, the coaxial transmission line and the absorbing circuit; the absorbing circuit usually chooses a microstrip resistor in consideration of the accuracy of the forming process and heat dissipation, which will bring The problem of easy breakage at the connection between the coaxial transmission line and the microstrip resistance, and the discontinuity of the microwave transmission path lead to a decrease in reliability and deterioration of microwave performance

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