A model for ferroelectric phase shifters

Novel microwave phase shifters consisting of coupled microstriplines on thin ferroelectric films have been demonstrated recently. A theoretical model useful for predicting the propagation characteristics (insertion phase shift, dielectric loss, impedance, and bandwidth) is presented here. The model...

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Veröffentlicht in:	IEEE transactions on magnetics 2000-09, Vol.36 (5), p.3491-3494
Hauptverfasser:	Romanofsky, R.R., Qureshi, A.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic wave devices, piezoelectric and piezoresistive devices Applied sciences Couplings Dielectric loss Dielectric losses Dielectric, ferroelectric, and piezoelectric devices Electronics Exact sciences and technology Ferroelectric films Ferroelectric materials Ferroelectricity Impedance Insertion Magnetism Mathematical models Microstrip Microwave propagation Microwaves Phase shifters Predictive models Propagation losses Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Thin films
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Beschreibung
Zusammenfassung:	Novel microwave phase shifters consisting of coupled microstriplines on thin ferroelectric films have been demonstrated recently. A theoretical model useful for predicting the propagation characteristics (insertion phase shift, dielectric loss, impedance, and bandwidth) is presented here. The model is based on a variational solution for line capacitance and coupled strip transmission line theory.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/20.908870