Investigation of high performance transmission line phase shifters based on liquid crystal

In this paper a novel transmission line topology partially filled with liquid crystal is investigated in terms of its usability as a high performance continuously tunable phase shifter. At first the special properties of liquid crystals are described briefly. Then theoretical results based on a deve...

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Bibliographic Details
Published in2009 European Microwave Conference (EuMC) pp. 594 - 597
Main Authors Gaebler, A., Goelden, F., Manabe, A., Goebel, M., Mueller, S., Jakoby, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2009
Subjects
Liquid crystals
Phase shifters
Transmission lines
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Summary:In this paper a novel transmission line topology partially filled with liquid crystal is investigated in terms of its usability as a high performance continuously tunable phase shifter. At first the special properties of liquid crystals are described briefly. Then theoretical results based on a developed simulation tool are discussed in order to explain the advantages of this waveguide structure compared to other techniques. Experimental results confirm the expected performance by showing an excellent Figure-of-Merit in the Ka-band region.
ISBN:9781424447480
1424447488
DOI:10.23919/EUMC.2009.5295928