Broadband microwave PIN diode attenuators

Abstract

The aim of the paper is to analyse and design variable attenuators equipped with ROV 211 chip PIN diodes. Nonlinear effects in such shunt PIN diode attenuators' are analysed, too. The attenuators are manufactured as hybrid microwave integrated circuits on soft microwave substrate. Insertion losses less than 2 dB and a dynamic range of 27 dB for two octave bandwidth were obtained.