A Frequency and Pattern Reconfigurable Antenna Array Based on Liquid Crystal Technology
Authors:
Open Access
- 19 May 2017
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Journal
- Vol. 9 (3) , 1-7
Abstract
A reconfigurable antenna array based on liquid crystal (LC) technology is proposed, which can dynamically tune operation frequency and achieve beam steering. The antenna element is composed of two parts: a microstrip patch array and a phase shifter using the inverted microstrip line (IMSL). The LC substrate is used to support the patch array for controlling its resonance frequency, while the LC-based IMSL phase shifter is adopted to tune the transmission phase by changing the effective permittivity of the LC. In order to verify the reconfigurable characteristics, the antenna array consisting of 1 × 4 elements are designed and numerically investigated. Simulation results show that this antenna can realize beam steering with a scanning angle range of (-20°, 20°), while its operation frequency can be actively tuned between 14.5 and 16.4 GHz.Keywords
Funding Information
- 973 Program of China (2013CBA01700)
- National Natural Science Foundation of China (61475160)
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