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An HIS-Based Spiral Antenna for Pattern Reconfigurable Applications

Deo, P and Mehta, A and Mirshekar-Syahkal, D and Nakano, H (2009) 'An HIS-Based Spiral Antenna for Pattern Reconfigurable Applications.' IEEE Antennas and Wireless Propagation Letters, 8. pp. 196-199. ISSN 1536-1225

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Abstract

Single arm rectangular spiral antenna with four open circuit switches over a high-impedance surface (HIS) is proposed for pattern reconfigurable applications. The HIS plane without vias is utilized to achieve a low-profile antenna design with a net thickness of 5.08 mm. This is equivalent to ∼ λ0/17 for the intended operating frequency of 3.3 GHz. By using the possible sixteen switching combinations a near 360° beam steering is achieved, and the switched beams do not have a polarization variation from one pattern to another. The realized pattern reconfigurable antenna has both the tilted (θmax ≥ 25°) and axial (5° < θmax > 10°) beams, which have an average directivity of 6.9 dBi. © 2009 IEEE.

Item Type: Article
Uncontrolled Keywords: Beam reconfigurability; high-impedance surface (HIS); spiral antenna
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 08 Sep 2014 15:47
Last Modified: 18 Aug 2022 11:02
URI: http://repository.essex.ac.uk/id/eprint/9923

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