High-stability low-intermodulation attenuator

Abstract

The invention discloses a high-stability low-intermodulation attenuator. A flange connection surface is arranged on the left-side end surface of an attenuator shell; an inward-concave tail-end mounting hole is arranged in the flange connection surface; a flange disc on an N-type connector joint is tightly connected onto the flange connection surface; the tail insertion end on the N-type connector joint is arranged in the tail-end mounting hole in an interference fit mode; the inner cavity of the N-type connector joint is a conical port input end; the tail end of the conical port input end is fixed with one end of an inner conductor through an insulator; the inner conductor is inserted to an inner conductor through hole in the attenuator shell, and the other end of the inner conductor is in welding connected onto a built-in load. By adopting the technical scheme of the invention, the part structure is simple to assemble, the built-in load and the N-type connector joint are connected through a through inner conductor, use of a 50 ohm circuit board is replaced, the transmission stability is improved, the signal transmission stability is ensured, and stable output of parameters is ensured.

Description

technical field [0001] The invention relates to the technical field of attenuators, in particular to a high-stability low-intermodulation attenuator. Background technique [0002] With the development of microwave communication technology, people's demand for broadband and low intermodulation passive devices is increasing day by day, and the low intermodulation load is more urgent because of its wide application range. The attenuator is used in the microwave system. It is a two-port lossy microwave network. Its function is to attenuate the microwave power of one channel and then output it. The basic material of the existing radio frequency microwave power attenuator is resistive material, and the attenuator of the corresponding frequency is formed by placing the resistive material into the radio frequency circuit structure of different bands through a certain process. The attenuator of the resistance material of existing structure is generally made up of connector, attenuat...

AI Technical Summary

Problems solved by technology

The attenuator of the resistance material of existing structure is generally made up of connector, attenuator, 50 ohm circuit board, inner core, heat dissipation shell, and both attenuator and inner core are soldered and connected to 50 ohm circuit board, and 50 ohm circuit board is bonded On the heat dissipation shell, but when the attenuator is in use, the internal transmission generates heat, so that the attenuator and the inner core are soldered and connected to the 50-ohm circuit board. Softening, the fixed effect is reduced, these problems will lead to the stability of the transmission, so that the parameters of the attenuator will change, which is not conducive to use

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