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

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.
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: http://hdl.handle.net/2108/196945
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