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Reconfigurable Liquid Crystal Reflectarray with Extended Tunable Phase Range

Bildik, Saygin ; Dieter, Sabine ; Fritzsch, Carsten ; Frei, Michael ; Fischer, Christoph ; Menzel, Wolfgang ; Jakoby, Rolf (2011)
Reconfigurable Liquid Crystal Reflectarray with Extended Tunable Phase Range.
Proceedings of European Microwave Conference 2011.
Konferenzveröffentlichung, Bibliographie

Kurzbeschreibung (Abstract)

A coupled microstrip structure is investigated consisting of three fingerlike patches which are designed for liquid crystal technology. A unit cell based on the coupled structure is realized and characterized with a waveguide simulator. The proposed structure has a measured tunable phase range of 582°. It is used as an antenna element to design a reconfigurable reflectarray. The realized antenna is composed of 16x16 elements, and a slotted substrate integrated waveguide is used to illuminate it. Antenna patterns for desired main beam directions are synthesized at W-band with a developed Particle Swarm Optimization algorithm. Beam steering capability of the reflectarray is presented by steering the main beam to various angles applying the bias voltages obtained from the optimization algorithm.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 2011
Autor(en): Bildik, Saygin ; Dieter, Sabine ; Fritzsch, Carsten ; Frei, Michael ; Fischer, Christoph ; Menzel, Wolfgang ; Jakoby, Rolf
Art des Eintrags: Bibliographie
Titel: Reconfigurable Liquid Crystal Reflectarray with Extended Tunable Phase Range
Sprache: Englisch
Publikationsjahr: 2011
Veranstaltungstitel: Proceedings of European Microwave Conference 2011
Kurzbeschreibung (Abstract):

A coupled microstrip structure is investigated consisting of three fingerlike patches which are designed for liquid crystal technology. A unit cell based on the coupled structure is realized and characterized with a waveguide simulator. The proposed structure has a measured tunable phase range of 582°. It is used as an antenna element to design a reconfigurable reflectarray. The realized antenna is composed of 16x16 elements, and a slotted substrate integrated waveguide is used to illuminate it. Antenna patterns for desired main beam directions are synthesized at W-band with a developed Particle Swarm Optimization algorithm. Beam steering capability of the reflectarray is presented by steering the main beam to various angles applying the bias voltages obtained from the optimization algorithm.

Fachbereich(e)/-gebiet(e): 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) > Mikrowellentechnik
18 Fachbereich Elektrotechnik und Informationstechnik
18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP)
Hinterlegungsdatum: 27 Jan 2012 15:20
Letzte Änderung: 05 Aug 2015 12:11
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