Performance of Archimedean spiral antenna backed by FSS reflector

S. Mohamad; R. Cahill; V. Fusco

doi:10.1049/el.2014.3693

Performance of Archimedean spiral antenna backed by FSS reflector

S. Mohamad, R. Cahill, V. Fusco

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Abstract

The use of a backing cavity composed of a frequency selective surface (FSS) above a metal plate as a means to suppress the back lobe radiation and increase the gain of an Archimedean spiral antenna that operates from 3 to 10 GHz is investigated. The FSS is designed to reflect signals in the upper band (7-10 GHz) with a loss of <;0.25 dB, and allow transmission in the lower band (3-6 GHz). Good impedance match and bidirectional to unidirectional beam transformation is obtained when the FSS and metal plate are inserted at a distance λ/4 below the spiral at the centre of the upper and lower bands, respectively. Simulated and measured radiation patterns are employed to show the performance enhancement, which is attributed to the FSS reflector.

Original language	English
Pages (from-to)	14-16
Number of pages	3
Journal	Electronics Letters
Volume	51
Issue number	1
DOIs	https://doi.org/10.1049/el.2014.3693
Publication status	Published - 08 Jan 2015

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Performance of Archimedean spiral antenna backed by FSS reflector
© This paper is a postprint of a paper submitted to Electronics Letters and accepted for publication in and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
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title = "Performance of Archimedean spiral antenna backed by FSS reflector",

abstract = "The use of a backing cavity composed of a frequency selective surface (FSS) above a metal plate as a means to suppress the back lobe radiation and increase the gain of an Archimedean spiral antenna that operates from 3 to 10 GHz is investigated. The FSS is designed to reflect signals in the upper band (7-10 GHz) with a loss of <;0.25 dB, and allow transmission in the lower band (3-6 GHz). Good impedance match and bidirectional to unidirectional beam transformation is obtained when the FSS and metal plate are inserted at a distance λ/4 below the spiral at the centre of the upper and lower bands, respectively. Simulated and measured radiation patterns are employed to show the performance enhancement, which is attributed to the FSS reflector.",

author = "S. Mohamad and R. Cahill and V. Fusco",

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doi = "10.1049/el.2014.3693",

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T1 - Performance of Archimedean spiral antenna backed by FSS reflector

AU - Mohamad, S.

AU - Cahill, R.

AU - Fusco, V.

PY - 2015/1/8

Y1 - 2015/1/8

N2 - The use of a backing cavity composed of a frequency selective surface (FSS) above a metal plate as a means to suppress the back lobe radiation and increase the gain of an Archimedean spiral antenna that operates from 3 to 10 GHz is investigated. The FSS is designed to reflect signals in the upper band (7-10 GHz) with a loss of <;0.25 dB, and allow transmission in the lower band (3-6 GHz). Good impedance match and bidirectional to unidirectional beam transformation is obtained when the FSS and metal plate are inserted at a distance λ/4 below the spiral at the centre of the upper and lower bands, respectively. Simulated and measured radiation patterns are employed to show the performance enhancement, which is attributed to the FSS reflector.

AB - The use of a backing cavity composed of a frequency selective surface (FSS) above a metal plate as a means to suppress the back lobe radiation and increase the gain of an Archimedean spiral antenna that operates from 3 to 10 GHz is investigated. The FSS is designed to reflect signals in the upper band (7-10 GHz) with a loss of <;0.25 dB, and allow transmission in the lower band (3-6 GHz). Good impedance match and bidirectional to unidirectional beam transformation is obtained when the FSS and metal plate are inserted at a distance λ/4 below the spiral at the centre of the upper and lower bands, respectively. Simulated and measured radiation patterns are employed to show the performance enhancement, which is attributed to the FSS reflector.

U2 - 10.1049/el.2014.3693

DO - 10.1049/el.2014.3693

M3 - Article

SN - 0013-5194

VL - 51

SP - 14

EP - 16

JO - Electronics Letters

JF - Electronics Letters

IS - 1

ER -

Performance of Archimedean spiral antenna backed by FSS reflector

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