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

Ladda ner artikel

Ingår i: GigaHertz 2003. Proceedings from the Seventh Symposium

Linköping Electronic Conference Proceedings 8:72, s.

Visa mer +

Publicerad: 2003-11-06


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


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.


Inga nyckelord är tillgängliga


[1] Shiban K. Koul; Bharathi Bhat; “Microwave and Millimeter Wave Phase Shifters”; Artech House; London; 1991.

[2] www.paratek.com

[3] F. W. Van Keuls; R.R. Romanofsky; M. D. Winters and F. A. Miranda ”(YBa2Cu3O7-d;Au)/SrTiO3/LaAlO3 Thin Film Conductor/Ferroelectric Coupled Microstripline Phase Shifters for Phased Array Applications”; Appl. Phys. Lett.71 (21); 24 November 1997; pp.3075-3077.

[4] A. Kozyrev; A. Ivanov; V. Keis; V. Osadchy; T. Samoilova; O. Soldatenkov; A. Pavlov; G. Koepf; C. Mueller; D. Galt; T. Rivkin “Ferroelectric Films: Nonlinear Properties and Applications in Microwave Devices”; IEEE MTT-S Digest; pp. 985-988;1998.

[5] Franko De Flaviis; N. G. Alexopoulos and Oscar M. Stafsudd; “Planar Microwave Integrated Phase-Shifter Design with High Purity Ferroelectric Material”; IEEE Trans. Microwave Theory Techn.; Vol. MTT-45; pp. 963-969; June 1991.

[6] E. Carlsson; P. Petrov; R. Chakalov; P. Larsson; Z. Ivanov and S. Gevorgian; “Experimental Study of Thin Film HTS/Ferroelectric CPW Phase Shifter for Microwave Applications”; Inst. Phys. Conf. Ser. No. 158; pp.339-342; 1997.

[7] Baki Acikel; Troy R. Taylor; Peter J. Hansen; James S. Speck; and Robert A. York; “ A New High Performance Phase Shifter using BaxSr1-xTiO3 Thin Films”; IEEE Microwave and Wireless components Letters; vol.12; pp.237-239;2002.

[8] Amit S. Nagra; Jian Xu; Erich Erker and Robert A. York; “ Monolithic GaAs Phase Shifter Circuit with Low insertion loss and continuous 0-360° Phase Shift at 20 GHz”; IEEE Microwave and Guided Wave Lett.; vol.9; pp.31-33; 1999.

[9] S. Abadei; S. Gevorgian; C.-R.Cho; and A. Grishin; “Low frequency and Microwave Performances of Laser Ablated Epitaxial Na0.5K0.5NbO3 Films on High Resistivity SiO2 /Si Substrates”; Journal of Applied Physics; vol.91;pp.2267-2277; 2002.

[10] A. Deleniv; M. Gashinova and A. Eriksson; “On the Application of Duality Principle for Analysis of Slot- Like Structures”; Proceedings of EuMC 2002 (Milan; Italy); pp.9-12.

Citeringar i Crossref