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Reconfigurable Unit Cell for Reflectarray Antenna Based on Barium-Strontium-Titanate Thick-Film Ceramic

Sazegar, M. and Giere, A. and Zheng, Y. and Maune, H. and Moessinger, A. and Jakoby, Rolf (2009):
Reconfigurable Unit Cell for Reflectarray Antenna Based on Barium-Strontium-Titanate Thick-Film Ceramic.
[Conference or Workshop Item]

Abstract

Reconfigurable unit cells based on the ferroelectric thick-film ceramic of Barium-Strontium-Titanate (BST) are presented in this paper which enable the realization of lowprofile, cost-effective and fast steerable reflectarray antennas in X-band. A microstrip patch antenna partitioned into two halves is patterned on top of a screen printed BST thick-film. By applying a variable DC bias voltage between the halves, the resonance frequency of the capacitively loaded patch is shifted, and in the same time, a phase shift of the reflected wave is achieved. The method of using a waveguide simulator as the periodic boundaries in both simulation and measurement is also addressed.

Item Type: Conference or Workshop Item
Erschienen: 2009
Creators: Sazegar, M. and Giere, A. and Zheng, Y. and Maune, H. and Moessinger, A. and Jakoby, Rolf
Title: Reconfigurable Unit Cell for Reflectarray Antenna Based on Barium-Strontium-Titanate Thick-Film Ceramic
Language: English
Abstract:

Reconfigurable unit cells based on the ferroelectric thick-film ceramic of Barium-Strontium-Titanate (BST) are presented in this paper which enable the realization of lowprofile, cost-effective and fast steerable reflectarray antennas in X-band. A microstrip patch antenna partitioned into two halves is patterned on top of a screen printed BST thick-film. By applying a variable DC bias voltage between the halves, the resonance frequency of the capacitively loaded patch is shifted, and in the same time, a phase shift of the reflected wave is achieved. The method of using a waveguide simulator as the periodic boundaries in both simulation and measurement is also addressed.

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