Title :
Decade bandwidth 4 bits MMIC phase shifter for T/R modules
Author :
Ferrari, Mauro ; Piattella, Luca
Author_Institution :
Elettron. S.p.A., Rome, Italy
Abstract :
This paper presents the design approach and test results of a full passive, decade bandwidth GaAs MMIC, composed by a phase shifter (PS) with a cascaded absorptive SPDT switch, suitable for T/R modules in Active Electronically Scanned Array (AESA). The proposed PS - fabricated using a GaAs 0.25 PHEMT process - combines all-pass filters (APF) with high-pass filters (HPF), in order to provide less than 13dB insertion loss, less than ±20° phase error and less than ±2.5 dB amplitude error in the 0.8-8GHz bandwidth.
Keywords :
III-V semiconductors; MMIC phase shifters; all-pass filters; gallium arsenide; high electron mobility transistors; high-pass filters; integrated circuit design; wide band gap semiconductors; PHEMT process; active electronically scanned array; all-pass filters; bandwidth 0.8 GHz to 8 GHz; cascaded absorptive SPDT switch; decade bandwidth 4 bits MMIC phase shifter; high-pass filters; Bandwidth; MMICs; Microwave circuits; Microwave filters; Phase shifters; Topology; Broadband; MMIC; Monolithic Phase Shifters; T/R module;
Conference_Titel :
European Microwave Integrated Circuit Conference (EuMIC), 2014 9th
Conference_Location :
Rome
DOI :
10.1109/EuMIC.2014.6997838
