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Tunable liquid crystal reflectarray with rectangular elements

Bildik, Saygin and Fritzsch, Carsten and Moessinger, Alexander and Jakoby, Rolf (2010):
Tunable liquid crystal reflectarray with rectangular elements.
[Conference or Workshop Item]

Abstract

A square and a rectangular microstrip patch element are designed and investigated in order to realize an electronically reconfigurable reflectarray antenna based on liquid crystals at Ka-Band. By using an equivalent circuit composed of lumped elements, reflection coefficient amplitudes, tunable phase ranges and losses of the designed elements are compared. As a result of the investigation, since the rectangular element has higher reflection amplitude, a tunable liquid crystal reflectarray antenna composed of rectangular elements is realized. The fabricated antenna has the ability of beam steering in one dimension. Tuning capability of the reflectarray antenna is presented by scanning the main beam from -20° to +20°.

Item Type: Conference or Workshop Item
Erschienen: 2010
Creators: Bildik, Saygin and Fritzsch, Carsten and Moessinger, Alexander and Jakoby, Rolf
Title: Tunable liquid crystal reflectarray with rectangular elements
Language: German
Abstract:

A square and a rectangular microstrip patch element are designed and investigated in order to realize an electronically reconfigurable reflectarray antenna based on liquid crystals at Ka-Band. By using an equivalent circuit composed of lumped elements, reflection coefficient amplitudes, tunable phase ranges and losses of the designed elements are compared. As a result of the investigation, since the rectangular element has higher reflection amplitude, a tunable liquid crystal reflectarray antenna composed of rectangular elements is realized. The fabricated antenna has the ability of beam steering in one dimension. Tuning capability of the reflectarray antenna is presented by scanning the main beam from -20° to +20°.

Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Microwave Engineering
18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
Date Deposited: 27 Jan 2012 15:20
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