DocumentCode
2164137
Title
Design and Investigation of Ferroelectric Digital Phase Shifter
Author
Sherman, Vladimir ; Astafiev, Konstantin ; Tagantsev, Alexander ; Setter, Nava ; Vendik, Irina ; Vendik, Orest
Author_Institution
Ceramics Laboratory, EPFL, Swiss Federal Institute of Technology, Lausanne, 1015, Switzerland, Phone: +41(21)6935805, Fax: +41(21)6935810, EMail: vladimir.cherman@epfl.ch
fYear
2001
fDate
24-26 Sept. 2001
Firstpage
1
Lastpage
4
Abstract
A reflection type phase shifter based on a tunable ferroelectric capacitor is under consideration. A design and characteristics of the one-bit ferroelectric phase shifter is proposed and discussed. The minimal insertion loss of the phase shifter is limited by the commutation quality factor of the capacitor and can be achieved in the case when the losses of the phase shifter in both states have the same value. The layout of the phase shifter based on a coplanar waveguide structure is shown. Measured characteristics of the phase shifter are compared with the predicted ones.
Keywords
Antenna arrays; Capacitors; Equations; Ferroelectric materials; Insertion loss; Optical reflection; Phase change materials; Phase shifters; Phased arrays; Q factor;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2001. 31st European
Conference_Location
London, England
Type
conf
DOI
10.1109/EUMA.2001.339061
Filename
4140129
Link To Document