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Optimal E-Field Vector Combination for a Highly Focused Antenna-Array

Sharma, A, Garcia Zuazola, Ignacio Julio, Martinez, R, Batchelor, John C., Perallos, Asier, de-Haro Ariet, L (2014) Optimal E-Field Vector Combination for a Highly Focused Antenna-Array. IEEE Antennas and Wireless Propagation Letters, 13 (2). pp. 392-395. ISSN 1536-1225. (doi:10.1109/LAWP.2014.2306574) (KAR id:40821)

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http://dx.doi.org/10.1109/LAWP.2014.2306574

Abstract

A near-field highly focused circular phased-array antenna for 5.8-GHz radio frequency identification (RFID) applications is presented. The electric field (E-field) at the focus is enhanced by a constructive vector combination in a three-dimensional (3-D) coordinate system. The array dipoles of the antenna are oriented to enhance the energy confinement at the focus, and the radii of the circular array is optimized for lower sidelobe levels. As a result, the proposed design achieves an enhanced focalization of ~4 dB with reduced sidelobe levels of ~12dB compared to earlier designs.

Item Type: Article
DOI/Identification number: 10.1109/LAWP.2014.2306574
Uncontrolled keywords: Focalization, near-field, phased-array, planar antenna, radio frequency identification (RFID).
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK7800 Electronics > TK7871.6 Antennas and waveguides
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK7800 Electronics > TK7872.F5 Filters (electric)
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: John Batchelor
Date Deposited: 23 Apr 2014 15:45 UTC
Last Modified: 29 May 2019 12:31 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/40821 (The current URI for this page, for reference purposes)
Batchelor, John C.: https://orcid.org/0000-0002-5139-5765
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