Title :
Novel broadband nonreciprocal 180° phase-shifter
Author :
Palombini, Diego ; Palomba, Mirko ; Colangeli, Sergio ; Limiti, Ernesto
Author_Institution :
Dipt. di Ing. Elettron., Univ. degli Studi di Roma "Tor Vergata", Rome, Italy
Abstract :
In this contribution, a novel broadband 180° phase shifter, realized in 0.5 μm GaN HEMT technology developed by SELEX Sistemi Integrati, is presented. This new topology is based on the combination of two directive three-port elements with a four-port phase-shifting network: the proposed MMIC is featured by an average zero insertion loss, 180°±2° differential phase-shift and good port matching over the 3-7GHz operating bandwidth. The MMIC size is 3.5×3.4 mm2.
Keywords :
III-V semiconductors; MMIC; gallium compounds; high electron mobility transistors; microwave phase shifters; microwave transistors; wide band gap semiconductors; GaN; HEMT technology; MMIC; SELEX Sistemi Integrati; bandwidth 3 GHz to 7 GHz; broadband nonreciprocal phase-shifter; differential phase-shift; directive three-port elements; four-port phase-shifting network; Bandwidth; Broadband amplifiers; Distributed amplifiers; Microwave amplifiers; Microwave transistors; Phase shifters; Broadband; Circulator; Distributed Amplifier; GaN MMIC; NRPS; Non-Reciprocal; Phase Shifter; Quasi-Circulator;
Conference_Titel :
Microwave Radar and Wireless Communications (MIKON), 2012 19th International Conference on
Conference_Location :
Warsaw
Print_ISBN :
978-1-4577-1435-1
DOI :
10.1109/MIKON.2012.6233536
