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55.1 Invited Paper : Liquid Crystals for Smart Antennas and Other Microwave Applications
Author(s) -
Wittek Michael,
Fritzsch Carsten,
Canisius Johannes
Publication year - 2015
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.10344
Subject(s) - microwave , liquid crystal , planar , materials science , voltage , antenna (radio) , optoelectronics , ranging , polarity (international relations) , phase (matter) , range (aeronautics) , dielectric , electrical engineering , optics , engineering , physics , telecommunications , computer science , chemistry , quantum mechanics , cell , composite material , biochemistry , computer graphics (images)
Liquid Crystal mixtures to be used in microwave components operated at frequency ranges from 10 up to 100 GHz have been developed. In this frequency range they exhibit high tuning ranges and relatively low dielectric losses. They exhibit a very broad nematic phase, ranging from as low as ‐40 up to 120°C and more and relatively high polarity to ensure acceptable driving voltages to be used in planar LC‐based smart antenna devices.