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Planar Ultra-Thin Small Beam-Switching Antenna

Zhang, Long, Gao, Steven, Luo, Qi, Young, Paul R., Li, Qingxia (2016) Planar Ultra-Thin Small Beam-Switching Antenna. IEEE Transactions on Antennas and Propagation, (99). ISSN 0018-926X. E-ISSN 1558-2221. (doi:10.1109/TAP.2016.2620490) (KAR id:58457)

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http://doi.org/10.1109/TAP.2016.2620490

Abstract

A novel planar ultrathin electronically steerable parasitic array radiator (ESPAR) is presented in this paper. Through theoretical analysis of the electric fields of orthogonally crossed dipoles in phase quadrature, it is found that the crossed dipoles radiate linearly polarized wave with a rotational electric field in the azimuth plane. This characteristic is then utilized to design a planar crossed dipole ESPAR, termed as “CD-ESPAR.” Furthermore, a simple but effective impedance matching method is also proposed and analyzed. To verify these concepts, a prototype with compact size and very low profile (0.42 ?0 × 0.42 ?0 ×0.006 ?0) resonating at 2.3 GHz is designed, fabricated, and measured. The measured results indicate that the proposed antenna achieves more than 17.8% impedance bandwidth and can produce four directional beams, covering the whole azimuth plane. Owing to its planar ultrathin structure, compact size, electronically beam-switching ability, low power, and low cost characteristics, it is promising for applications in wireless communications

Item Type: Article
DOI/Identification number: 10.1109/TAP.2016.2620490
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 08 Nov 2016 11:49 UTC
Last Modified: 16 Feb 2021 13:38 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/58457 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
Young, Paul R.: https://orcid.org/0000-0002-3707-2441
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