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Dual frequency broadband reflectarray element design

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Main Authors: Norbahiah, Misran, Cahill, Robert
Other Authors: bahiah@vlsi.eng.ukm.my
Format: Article
Language:English
Published: The Institution of Engineers, Malaysia 2011
Subjects:
Concentric ring
Dual frequency
Dual polarisation
Reflectarray antenna
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13752
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spelling my.unimap-137522011-09-14T10:00:48Z Dual frequency broadband reflectarray element design Norbahiah, Misran Cahill, Robert bahiah@vlsi.eng.ukm.my Concentric ring Dual frequency Dual polarisation Reflectarray antenna Link to publisher's homepage at http://www.myiem.org.my/ The bandwidth limitation of a reflectarray is a consequence of the non-linear and high Q variation in the reflection phase which occurs when the element size is changed to produce the required progressive phase distribution across the antenna aperture. A significant increase in the bandwidth is shown to occur when the periodic structure of a grounded stacked rings or concentric rings generates two resonances which are closely spaced. This paper presents the reflection phase response of a two-layer array of orthogonally oriented concentric split rings for dual frequency broadband reflectarray. The concentric split ring concept is discussed in this chapter and the validity of the approach at X-band is confirmed by comparing the computed results, which is simulated by Micro-stripesTM simulator, and experimental results from waveguide simulator experiment. Good agreement is shown between the two sets of result. Simply by inserting gaps in the ring elements, it will suppress the interlayer coupling and produce polarisation sensitive scattering. The results demonstrate that these properties enable the reflection phase coefficients of a reflectarray to be independently optimised at two closely different frequencies. 2011-09-14T10:00:48Z 2011-09-14T10:00:48Z 2007-06 Article The Journal of the Institution of Engineers, Malaysia, vol. 68(2), 2007, pages 36-40 0126-513X http://www.myiem.org.my/content/iem_journal_2007-178.aspx http://hdl.handle.net/123456789/13752 en The Institution of Engineers, Malaysia
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Concentric ring
Dual frequency
Dual polarisation
Reflectarray antenna
spellingShingle Concentric ring
Dual frequency
Dual polarisation
Reflectarray antenna
Norbahiah, Misran
Cahill, Robert
Dual frequency broadband reflectarray element design
description Link to publisher's homepage at http://www.myiem.org.my/
author2 bahiah@vlsi.eng.ukm.my
author_facet bahiah@vlsi.eng.ukm.my
Norbahiah, Misran
Cahill, Robert
format Article
author Norbahiah, Misran
Cahill, Robert
author_sort Norbahiah, Misran
title Dual frequency broadband reflectarray element design
title_short Dual frequency broadband reflectarray element design
title_full Dual frequency broadband reflectarray element design
title_fullStr Dual frequency broadband reflectarray element design
title_full_unstemmed Dual frequency broadband reflectarray element design
title_sort dual frequency broadband reflectarray element design
publisher The Institution of Engineers, Malaysia
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13752
_version_ 1643790957216268288
score 13.18916

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