Broadband attenuator with electronic control

Abstract

Broadband attenuator with electronic control

Andrianov A.V., Zikiy A.N., Zinoviev S.S., Salnyi I.A.

Incoming article date: 16.06.2017

In article a modelling and experimental survey of the controlled attenuator in a frequency range 2 - 4 GHz is performed. It is received the minimum attenuation no more than 3.5 dB, the maximum attenuation not less than 56 dB at a current 3.8 mA. The amplitude-frequency characteristic unevenness at a current 3.8 mA does not exceed 3 dB. The attenuator design is made in the form of the hybrid module. The attenuator is intended for adjustment of transfer constant of the microwave receiver.

Keywords: attenuator, pin-diode, amplitude-frequency characteristic, control current