Metasurfaced, Broadband, and Circularly Polarized Liquid Antennas Using a Simple Structure

Song, Chaoyun ORCID: 0000-0001-8735-3156, Bennett, Elliot L ORCID: 0000-0003-3798-4296, Xiao, Jianliang ORCID: 0000-0003-2010-247X, Alieldin, Ahmed, Luk, Kwai-Man and Huang, Yi ORCID: 0000-0001-7774-1024 (2019) Metasurfaced, Broadband, and Circularly Polarized Liquid Antennas Using a Simple Structure. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 67 (7). pp. 4907-4913.

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Abstract

A novel broadband circularly polarized (CP) antenna using organic ionic liquid resonators is presented in this communication for the first time. The antenna is excited by inserting a new feeding structure into the liquid which is relatively simple but significantly improves the bandwidth and CP performance of traditional single probe-fed dielectric resonator antennas (DRAs). The proposed liquid antenna is loaded with a metasurface (MS) to further improve the impedance matching and CP characteristics. A design example of the proposed antenna shows a relatively wide fractional impedance bandwidth and CP bandwidth of 51.4% and 34.2%, respectively. In addition, the proposed liquid DRA has a reduced structural complexity and a compact size compared with the conventional DRAs with a similar performance. The design methodology presented in this communication can be further exploited for a range of new liquid DRA designs and expand the design freedom and flexibility of such antennas which may have significant implications in future antenna designs using the new liquid materials.

Item Type:	Article
Uncontrolled Keywords:	Circular polarization (CP), dielectric resonator antenna (DRA), liquid antennas, metasurface (MS), organic ionic liquid
Depositing User:	Symplectic Admin
Date Deposited:	24 Apr 2019 08:27
Last Modified:	19 Jan 2023 00:53
DOI:	10.1109/TAP.2019.2911332
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3038068