Low-intermodulation constant-value passive attenuator

Abstract

The invention discloses a low-intermodulation constant-value passive attenuator. The attenuator comprises a low-intermodulation constant-value coupler and a low-intermodulation load. The low-intermodulation constant-value passive attenuator is characterized in that the ANT port of the low-intermodulation constant-value coupler is used as an attenuator input port; the COUPLER port of the low-intermodulation constant-value coupler is used as an attenuator output port; and the inner conductor of the cable of the low-intermodulation load is directly connected with the connecting rod of the low-intermodulation constant-value coupler. According to the low-intermodulation constant-value passive attenuator of the invention, the inner conductor of the cable of the low-intermodulation load is directly connected with the connecting rod of the low-intermodulation constant-value coupler; the tail end of the cable is connected with a high-shielding sheet type load; with the high-shielding sheet typeload adopted, 25 meters of a low-intermodulation cable originally required by the low-intermodulation load can be replaced by 12 meters of a low-intermodulation cable, and at the same time, it can beensured that the performance indexes of the low-intermodulation load can achieve standards; the size of the attenuator is reduced structurally; the cost performance of a product is greatly improved;production efficiency and product consistency can be improved; materials and labor costs required by production can be saved; and national energy conservation and emission reduction policies can be supported.

Description

technical field [0001] The invention relates to a passive attenuator with low intermodulation fixed value, which belongs to the technical field of electronic equipment. Background technique [0002] An attenuator is an electronic component that provides attenuation. It is widely used in electronic equipment. Its main purpose is to adjust the signal size in the circuit. In the comparison method measurement circuit, it can be used to directly read the attenuation value of the network under test. Improve impedance matching. An attenuator is a circuit used to introduce a predetermined attenuation within a specified frequency range. It is generally indicated by the decibel number of the attenuation introduced and the ohm number of the characteristic impedance. Existing attenuators are divided into active attenuators and passive attenuators, and can be divided into displacement optical attenuators, film optical attenuators, attenuator optical attenuators and other types of atten...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this solution is that the size of the attenuator is too large and the cost is high; because the traditional low intermodulation attenuator is connected by separate accessories, there will be some indicators such as return loss or intermodulation due to improper connection. The target is not met, so there is an inconsistency in the installation in this way

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