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Compact-size Electronically Steerable Parasitic Array Radiator antenna

Liu, Haitao and Gao, Steven and Loh, Tian Hong (2009) Compact-size Electronically Steerable Parasitic Array Radiator antenna. In: 2009 Loughborough Antennas & Propagation Conference. IEEE, pp. 265-268. ISBN 978-1-4244-2720-8. (doi:10.1109/LAPC.2009.5352559) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:35795)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1109/LAPC.2009.5352559

Abstract

In this paper, a compact electronically steerable parasitic array radiator (ESPAR) antenna that covers the frequency band from 2.4 GHz to 2.5 GHz is proposed. The top-disk-loaded monopole and folded monopole structure are employed to reduce the height of proposed ESPAR antenna. The height of top-disk-loaded monopole and folded monopole have been reduced to be lower than 1/8 wavelength, much smaller than 1/4 wavelength, i.e. the height of traditional ESPAR antenna. Furthermore, the distance between the driven element and parasitic elements, i.e. the radius of the ESPAR module, is also reduced. The proposed ESPAR module achieves a gain of 4.01 dBi and a front-back ratio of 13.9 dB despite its compactness. The beam forming is achieved by tuning the reactive load of the varactors series whose parasitic elements surround the central driven element.

Item Type: Book section
DOI/Identification number: 10.1109/LAPC.2009.5352559
Uncontrolled keywords: antenna arrays; loaded antennas; antennas and propagation; parasitic capacitance; varactors; costs; antenna measurements; wavelength measurement; space technology; communications technology
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Tina Thompson
Date Deposited: 29 Oct 2013 16:45 UTC
Last Modified: 06 May 2020 03:08 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/35795 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
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