Konferensartikel

Tunable Ferroelectric Filter-Phase Shifter

A. Deleniv
Department of Microtechnology and Nanoscience MC-2, Chalmers University of Technology, Sweden

S. Abadei
Department of Microtechnology and Nanoscience MC-2, Chalmers University of Technology, Sweden

S. Gevorgian
Department of Microtechnology and Nanoscience MC-2, Chalmers University of Technology, Sweden \ Microwave and High Speed Research Center, Ericsson AB

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Ingår i: GigaHertz 2003. Proceedings from the Seventh Symposium

Linköping Electronic Conference Proceedings 8:72, s.

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Publicerad: 2003-11-06

ISBN:

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

Design of a tuneable filter-phase shifter is presented. Thin ferroelectric film varactors are used to provide voltage tuneable phase shift in a silicon Coplanar Waveguide (CPW). Varactors with zero bias capacitance 0.17pf; loss tangent tand=0.04 and 20% tuneability provide continuous voltage tuneable phase shift up to 90°±5° at 19 GHz with 10% bandwidth. The figure of merit is about 30°/dB. The sizes of the phase shifter silicon chip are less than 2x5.5mm. The phase shifter is designed for possible integration in silicon MMIC`s.

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Referenser

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