In this contribution, a novel method to design broadband nonreciprocal phase shifters (NRPS) is illustrated: this new topology is based on the combination of two directive-distributed amplifiers with a four-port phase-shifting network. The presented approach includes explicit design formulae allowing for arbitrary differential-phase implementation. Extensive design description of a 180° NRPS, acting as broadband differential-phase inverter, is also provided. The 3.5×3.4mm2 demonstrator, realized in 0.5μm GaN HEMT technology, has an average zero insertion loss up to 25 dBm of input power, 180° ± 2° differential-phase shift, and good port matching over the 3–7-GHz operating bandwidth.

Palomba, M., Palombini, D., Colangeli, S., Ciccognani, W., Limiti, E. (2018). Broadband Nonreciprocal Phase Shifter Design Technique. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 66(4), 1964-1972 [10.1109/TMTT.2017.2785816].

Broadband Nonreciprocal Phase Shifter Design Technique

Colangeli, Sergio;Ciccognani, Walter;Limiti, Ernesto
2018-04-01

Abstract

In this contribution, a novel method to design broadband nonreciprocal phase shifters (NRPS) is illustrated: this new topology is based on the combination of two directive-distributed amplifiers with a four-port phase-shifting network. The presented approach includes explicit design formulae allowing for arbitrary differential-phase implementation. Extensive design description of a 180° NRPS, acting as broadband differential-phase inverter, is also provided. The 3.5×3.4mm2 demonstrator, realized in 0.5μm GaN HEMT technology, has an average zero insertion loss up to 25 dBm of input power, 180° ± 2° differential-phase shift, and good port matching over the 3–7-GHz operating bandwidth.
apr-2018
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/01 - ELETTRONICA
English
Con Impact Factor ISI
Broadband, circulator, distributed amplifier, GaN, microwave monolithic integrated circuit (MMIC), phase shifter
Palomba, M., Palombini, D., Colangeli, S., Ciccognani, W., Limiti, E. (2018). Broadband Nonreciprocal Phase Shifter Design Technique. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 66(4), 1964-1972 [10.1109/TMTT.2017.2785816].
Palomba, M; Palombini, D; Colangeli, S; Ciccognani, W; Limiti, E
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/196945
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