Conmutador de fase 180º de banda ancha a 30 GHz

Abstract

The design, assembly and characterization of a phase switch in the Ka-band based on PIN diodes is presented. This phase switch has provided a 20 per cent of bandwidth at 30 GHz and a phase shift around 180º. The phase switch has been made with a broadband hybrid coupler on microstrip technology and commercial PIN diodes HPND-4005 from Agilent. Two different techniques to adjust the phase shift have been applied. Input and output matching better than 13 dB, return losses lower than 3 dB and a phase shift from 160º up to 174º have been obtained from 27 to 33 GHz.