Design Optimization of Reconfigurable Liquid Crystal Patch Antenna
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Department of Electrical, Electronics & Communication Engineering Education, Chungnam National University, Daejeon 34134, Korea
2
Department of Convergence System Engineering, Chungnam National University, Daejeon 34134, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Zhen Xu and Giorgio Biasiol
Materials 2021, 14(4), 932; https://doi.org/10.3390/ma14040932
Received: 30 December 2020
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Revised: 10 February 2021
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Accepted: 14 February 2021
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Published: 16 February 2021
(This article belongs to the Special Issue Soft Materials and Optical Devices)
In various fields such as the 5G antenna system and satellite communication system, there is a growing demand to develop a smart antenna with a frequency selective or beamforming function within a limited space. While antennas utilizing mechanical, electronic, and material characteristics are being studied, a method of having tunable frequency characteristics by applying a liquid crystal material with dielectric anisotropy to a planar patch antenna is proposed. In resonance mode, the design method for using only the minimum amount of expensive liquid crystals is systematically arranged while maximizing the amount of change in the operating frequency of the antenna by considering the electric field distribution on the surface of the patch antenna. Furthermore, to increase the dielectric anisotropy of the liquid crystal, the liquid crystal must be aligned. Simultaneously, in cases where the cell gap of the liquid crystal exceeds 100 μm, the alignment force is weakened. While compensating for this shortcoming, securing the radiation characteristics of the antenna is proposed, and simulations are performed.
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MDPI and ACS Style
Kim, D.; Kim, K.; Kim, H.; Choi, M.; Na, J.-H. Design Optimization of Reconfigurable Liquid Crystal Patch Antenna. Materials 2021, 14, 932. https://doi.org/10.3390/ma14040932
AMA Style
Kim D, Kim K, Kim H, Choi M, Na J-H. Design Optimization of Reconfigurable Liquid Crystal Patch Antenna. Materials. 2021; 14(4):932. https://doi.org/10.3390/ma14040932
Chicago/Turabian StyleKim, Dowon, Kitae Kim, Hogyeong Kim, Moonyoung Choi, and Jun-Hee Na. 2021. "Design Optimization of Reconfigurable Liquid Crystal Patch Antenna" Materials 14, no. 4: 932. https://doi.org/10.3390/ma14040932
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