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, [Conference or Workshop Item]
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.
| Item Type: | Conference or Workshop Item |
|---|---|
| Erschienen: | 2011 |
| Creators: | Bildik, Saygin ; Dieter, Sabine ; Fritzsch, Carsten ; Frei, Michael ; Fischer, Christoph ; Menzel, Wolfgang ; Jakoby, Rolf |
| Title: | Reconfigurable Liquid Crystal Reflectarray with Extended Tunable Phase Range |
| Language: | English |
| 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. |
| Divisions: | 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Microwave Engineering 18 Department of Electrical Engineering and Information Technology 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) |
| Event Title: | Proceedings of European Microwave Conference 2011 |
| Date Deposited: | 27 Jan 2012 15:20 |
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