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Journal Article A Phased Array Antenna Using Ferroelectric CPW Phase Shifter Active Modules
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Authors
Han-Cheol Ryu, Su-Jae Lee, Seung Eon Moon, Min-Hwan Kwak, Mun-Cheol Paek, Kwang-Yong Kang, Seong-Ook Park
Issue Date
2010-12
Citation
Ferroelectrics, v.407, no.1, pp.45-53
ISSN
0015-0193
Publisher
Gordon and Breach
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1080/00150193.2010.484707
Project Code
09MB1400, Development of THz-wave oscillation/modulation/detection module and signal sources technology, Kang Kwang-Yong
Abstract
A phased array antenna using ferroelectric coplanar waveguide (CPW) phase shifter active modules is presented based on a Ba0.6Sr 0.4TiO3 (BST) thin film. The ferroelectric BST thin film was deposited on an MgO substrate by using pulsed laser deposition. The active module amplifies an RF signal with low noise and changes the phase of a received RF signal to control the main beam of the array antenna. It is composed of low noise amplifier (LNA), dc block, and ferroelectric CPW phase shifter. The prototype of 6×12 phased array patch antenna with the active modules using a ferroelectric phase shifter is proposed. The proposed array antenna continuously scanned its main beam in elevation plane to 32째 from its broadside direction at 11.85 GHz by applying the continuous dc voltage to the ferroelectric phase shifter. © Taylor & Francis Group, LLC.
KSP Keywords
85 GHz, Array patch antenna, BST thin film, Coplanar Waveguide Feeding(CPW), DC block, DC voltage, Main beam, MgO substrate, Phase Shifter, Pulsed-laser deposition(PLD), RF signal