Tunable passive phase shifter for microwave applications using highly anisotropic liquid crystals

IEEE MTT-S International Microwave Symposium Digest

Volumn 2, Issue , 2004, Pages 1153-1156

  Müller, Stefan ^a   Scheele, Patrick ^a   Weil, Carsten ^c   Wittek, Michael ^b   Hock, Christian ^b   Jakoby, Rolf ^a  

^a DARMSTADT UNIVERSITY OF TECHNOLOGY   (Germany)

^b MERCK KGAA   (Germany)

^c Advanced Ferrite Technology GmbH   (Germany)

Author keywords

Liquid crystal devices; Liquid crystals; Passive circuits; Phase shifters; Reconfigurable architectures; Tunable circuits and devices

Indexed keywords

LIQUID CRYSTAL DEVICES; RECONFIGURABLE ARCHITECHTURES; RESONATOR METHODS; TUNABLE CIRCUITS AND DEVICES;

ANISOTROPY; BROADBAND NETWORKS; CHOLESTERIC LIQUID CRYSTALS; DIELECTRIC MATERIALS; GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS; LIQUID CRYSTAL DISPLAYS; MAXWELL EQUATIONS; MICROWAVE DEVICES; NEMATIC LIQUID CRYSTALS; PASSIVE NETWORKS; PHASE SHIFT; PHASE SHIFTERS; TUNERS;

SMECTIC LIQUID CRYSTALS;

EID: 4344703097     PISSN: 0149645X     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (6)

1. C. Weil, G. Lüssem, and R. Jakoby: Tunable inverted-microstrip phase shifter device using nematic liquid crystals, IEEE MTT-S International, Volume: 1 pp. 367-370, June
2. C. Weil, S. Müller, P.Scheele, et. al.: Ferroelectric- and Liquid Crystal- Tunable Microwave Phase Shifters, IEEE EuMW, Munich, October 2003, pp. 1431-1434.
3. C. Weil: Passiv steuerbare Mikrowellenphasenschieber auf der Basis nichtlinearer Dielektrika, Ph. D. Thesis TU Darmstadt, Shaker Verlag, Aachen, 2003,.
4. C. Weil, S. Müller, P.Scheele: Highly-anisotropic liquid-crystal mixtures for tuneable microwave devices, electronics letters, November 2003, vol. 39, num. 24, pp. 1732-1734
5. N. Martin, P. Laurent: Improvement of a phase shifter device using liquid crystal, IEEE EuMW, Munich, October 2003,pp.
6. V. G. Chigrinov: Liquid Crystal Devices, Physics and Applications, Artech House, Boston, 1999.