Gain and Bandwidth Enhancement of a Spiral Antenna Using a Circularly Symmetric HIS

Mikal Askarian Amiri; Constantine Balanis; Craig R. Birtcher

doi:10.1109/LAWP.2016.2622222

Gain and Bandwidth Enhancement of a Spiral Antenna Using a Circularly Symmetric HIS

Mikal Askarian Amiri, Constantine Balanis, Craig R. Birtcher

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

A circularly symmetric high-impedance surface (HIS) is used as a ground plane in the design of a low-profile two-arm spiral antenna. It is shown through simulations that an HIS with circular periodicity provides 16% and 11.3% greater operational and fractional bandwidths, respectively, for spiral antennas compared to canonical rectangular HISs. It is also observed that with the aid of a circular HIS ground plane, the gain of the spiral antenna increases for 2.5 dB compared to when a rectangular HIS is used as a ground plane. Measurements are performed to validate the simulations; a very good agreement is indicated.

Original language	English (US)
Article number	7723849
Pages (from-to)	1080-1083
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	16
DOIs	https://doi.org/10.1109/LAWP.2016.2622222
State	Published - 2017

Keywords

Circular high-impedance surface (HIS)
low-profile design
spiral antenna
wideband balun
wideband element

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/LAWP.2016.2622222

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title = "Gain and Bandwidth Enhancement of a Spiral Antenna Using a Circularly Symmetric HIS",

abstract = "A circularly symmetric high-impedance surface (HIS) is used as a ground plane in the design of a low-profile two-arm spiral antenna. It is shown through simulations that an HIS with circular periodicity provides 16% and 11.3% greater operational and fractional bandwidths, respectively, for spiral antennas compared to canonical rectangular HISs. It is also observed that with the aid of a circular HIS ground plane, the gain of the spiral antenna increases for 2.5 dB compared to when a rectangular HIS is used as a ground plane. Measurements are performed to validate the simulations; a very good agreement is indicated.",

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AU - Balanis, Constantine

AU - Birtcher, Craig R.

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AB - A circularly symmetric high-impedance surface (HIS) is used as a ground plane in the design of a low-profile two-arm spiral antenna. It is shown through simulations that an HIS with circular periodicity provides 16% and 11.3% greater operational and fractional bandwidths, respectively, for spiral antennas compared to canonical rectangular HISs. It is also observed that with the aid of a circular HIS ground plane, the gain of the spiral antenna increases for 2.5 dB compared to when a rectangular HIS is used as a ground plane. Measurements are performed to validate the simulations; a very good agreement is indicated.

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KW - low-profile design

KW - spiral antenna

KW - wideband balun

KW - wideband element

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JO - IEEE Antennas and Wireless Propagation Letters

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Gain and Bandwidth Enhancement of a Spiral Antenna Using a Circularly Symmetric HIS

Abstract

Keywords

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