A waveguide attenuator based on electric control and its control method

Abstract

This disclosure proposes a waveguide attenuator based on electric control and its control method, including a cavity, an attenuation sheet assembly, a lever assembly, and an electromagnetic relay; the cavity is provided with a transmission channel and an accommodation space for accommodating the attenuation sheet assembly; A spring is arranged between one end of the attenuation sheet assembly and the accommodating space, and a push rod is arranged at the other end, and the push rod extends out of the cavity; the lever assembly and the electromagnetic relay are arranged outside the cavity One end of the lever assembly is connected to the power part of the electromagnetic relay, and the other end is in contact with the top of the push rod; the present disclosure has the characteristics of miniaturization, and the attenuator is based on the electromagnetic relay as the power source, and transmits power through the lever to realize The movement of the attenuator has the advantages of simple action, high efficiency, and suitable for high and low frequency signals. At the same time, there is no gap in the cavity connection, and the sealing is good, which ensures the attenuation electrical index to the greatest extent.

Description

technical field [0001] The present disclosure belongs to the technical field of attenuators, and in particular, relates to a waveguide attenuator based on electric control and a control method thereof. Background technique [0002] Attenuator is an electronic component commonly used in testing, which has the function of attenuating high-power signals. Generally, the input signal is attenuated after passing through the attenuator. The signal has different attenuation effects through different shapes and sizes of attenuators. Generally, there are manual attenuators, precision polarization attenuators and program-controlled step attenuators; at present, manual adjustment of attenuators is achieved by manually adjusting the knob and screw drive to realize the movement of the attenuator. The motor adjusts the angle of the attenuator to realize the adjustment and change of the attenuator, and the program-controlled step attenuator is mostly used for the coaxial attenuator; the att...

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Problems solved by technology

[0004] 1. Manual adjustment of the attenuator has the problems of low efficiency and slow adjustment attenuation; the adjustment and change of the attenuator is realized by adjusting the angle of the attenuator by a stepping motor, and there are problems of expensive stepping motor and complicated maintenance; program-controlled step attenuation The attenuator is mostly used in the coaxial attenuator, and the attenuated signal belongs to the low frequency signal;

[0005] 2. In the current cavity switching control method, manual switching is required to push the switching cavity connecting rod. In addition to the low efficiency of manual switching, there is a gap between the switching cavity and the stator, and there are hidden dangers of leakage and Affecting electrical performance indicators and other issues

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