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Low-Loss Transformer Oil for Application in Frequency-Reconfigurable LP/CP Patch Antennas
Wang S.1,2; Zhu L.2; Wang J.1; Wu W.1
2018-12-05
Conference Name2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)
Source Publication2018 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2018 - Proceedings
Conference Date7-11 May 2018
Conference PlaceChengdu, China
Abstract

This paper introduces a kind of high-frequency liquid, transformer oil, which has low permittivity and dielectric loss. By employing this low-loss liquid material into structure of patch antenna, the property of frequency reconfigurability with high radiation efficiency is achieved. A two-layer substrate is here presented, where the upper one is made of homogeneous PTFE substrate for printing metal and the lower layer consists of a transparent container, including air and transformer oil layers. By varying the height of transformer oil layer, effective permittivity of the entire substrate underneath the patch can be tuned to realize frequency reconfiguration. Both linearly and circularly polarized (LP and CP) patch antenna prototypes are designed to verify the proposed methodology. The linearly polarized one is finally selected to be fabricated and tested. Measured results are found in reasonably good agreement with the simulated ones.

DOI10.1109/ICMMT.2018.8563692
URLView the original
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Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.School of Electronic and Optical Engineering, Nanjing University of Science and Technology Nanjing, Jiangsu Province 210094, China
2.Department of Electrical and Computer Engineering, Faculty of Science and Technology University of Macau, Macau, China
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Wang S.,Zhu L.,Wang J.,et al. Low-Loss Transformer Oil for Application in Frequency-Reconfigurable LP/CP Patch Antennas[C],2018.
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