Microwave Liquid Crystal Technology

Tunable Liquid Crystal (LC)-based microwave components are of increasing interest in academia and industry. Based on these components, numerous applications can be targeted such as tunable microwave filters and beam-steering antenna systems. With the commercialization of first LC-steered antennas fo...

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Main Authors: Holger Maune, Matthias Jost, Roland Reese, Ersin Polat, Matthias Nickel, Rolf Jakoby
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Crystals
Subjects:
Online Access:http://www.mdpi.com/2073-4352/8/9/355
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author Holger Maune
Matthias Jost
Roland Reese
Ersin Polat
Matthias Nickel
Rolf Jakoby
author_facet Holger Maune
Matthias Jost
Roland Reese
Ersin Polat
Matthias Nickel
Rolf Jakoby
author_sort Holger Maune
collection DOAJ
description Tunable Liquid Crystal (LC)-based microwave components are of increasing interest in academia and industry. Based on these components, numerous applications can be targeted such as tunable microwave filters and beam-steering antenna systems. With the commercialization of first LC-steered antennas for Ku-band e.g., by Kymeta and Alcan Systems, LC-based microwave components left early research stages behind. With the introduction of terrestrial 5G communications systems, moving to millimeter-wave communication, these systems can benefit from the unique properties of LC in terms of material quality. In this paper, we show recent developments in millimeter wave phase shifters for antenna arrays. The limits of classical high-performance metallic rectangular waveguides are clearly identified. A new implementation with dielectric waveguides is presented and compared to classic approaches.
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spelling doaj.art-57df8f2dec4d48de9c2bdaa4c9fb6cd12022-12-22T03:09:52ZengMDPI AGCrystals2073-43522018-09-018935510.3390/cryst8090355cryst8090355Microwave Liquid Crystal TechnologyHolger Maune0Matthias Jost1Roland Reese2Ersin Polat3Matthias Nickel4Rolf Jakoby5Institute for Microwave Engineering and Photonics, Technische Universität Darmstadt, 64283 Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, 64283 Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, 64283 Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, 64283 Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, 64283 Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, 64283 Darmstadt, GermanyTunable Liquid Crystal (LC)-based microwave components are of increasing interest in academia and industry. Based on these components, numerous applications can be targeted such as tunable microwave filters and beam-steering antenna systems. With the commercialization of first LC-steered antennas for Ku-band e.g., by Kymeta and Alcan Systems, LC-based microwave components left early research stages behind. With the introduction of terrestrial 5G communications systems, moving to millimeter-wave communication, these systems can benefit from the unique properties of LC in terms of material quality. In this paper, we show recent developments in millimeter wave phase shifters for antenna arrays. The limits of classical high-performance metallic rectangular waveguides are clearly identified. A new implementation with dielectric waveguides is presented and compared to classic approaches.http://www.mdpi.com/2073-4352/8/9/355liquid crystalmillimeter wave devicessteerable antennasdielectric waveguiderectangular waveguidescommunication systems
spellingShingle Holger Maune
Matthias Jost
Roland Reese
Ersin Polat
Matthias Nickel
Rolf Jakoby
Microwave Liquid Crystal Technology
Crystals
liquid crystal
millimeter wave devices
steerable antennas
dielectric waveguide
rectangular waveguides
communication systems
title Microwave Liquid Crystal Technology
title_full Microwave Liquid Crystal Technology
title_fullStr Microwave Liquid Crystal Technology
title_full_unstemmed Microwave Liquid Crystal Technology
title_short Microwave Liquid Crystal Technology
title_sort microwave liquid crystal technology
topic liquid crystal
millimeter wave devices
steerable antennas
dielectric waveguide
rectangular waveguides
communication systems
url http://www.mdpi.com/2073-4352/8/9/355
work_keys_str_mv AT holgermaune microwaveliquidcrystaltechnology
AT matthiasjost microwaveliquidcrystaltechnology
AT rolandreese microwaveliquidcrystaltechnology
AT ersinpolat microwaveliquidcrystaltechnology
AT matthiasnickel microwaveliquidcrystaltechnology
AT rolfjakoby microwaveliquidcrystaltechnology