An offset-fed 20/30 GHz dual-band circularly polarized reflectarray antenna

Thomas Gunst Smith; Niels Vesterdal; Ulrich Gothelf; Oleksiy S. Kim; Olav Breinbjerg

An offset-fed 20/30 GHz dual-band circularly polarized reflectarray antenna

Thomas Gunst Smith, Niels Vesterdal, Ulrich Gothelf, Oleksiy S. Kim, Olav Breinbjerg

Thrane & Thrane A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

A dual-frequency circularly polarized offset reflectarray antenna for Ka-band satellite communication is presented. The reflectarray is designed using the concentric dual split-loop element which enables full 360° phase adjustment simultaneously in two separate frequency bands. The elements have been optimized to suppress the cross-polar reflection. Thereafter, the element data is used for synthesis of the reflectarray layout and computation of the associated radiation patterns. The reflectarray is 400mm × 400mm and radiates LHCP at 19.95 GHz and RHCP at 29.75 GHz. Aperture efficiencies of 58% and 60% are obtained at these frequencies, and the cross-polarization is more than 25 dB below peak gain.

Original language	English
Title of host publication	7th European Conference on Antennas and Propagation : 2013 EuCAP
Publisher	IEEE
Publication date	2013
Pages	2959 - 2962
ISBN (Print)	978-1-4673-2187-7
Publication status	Published - 2013
Event	7th European Conference on Antennas and Propagation - Swedish Exhibition and Congress Centre, Gothenburg, Sweden Duration: 8 Apr 2013 → 12 Apr 2013 Conference number: 7 https://www.eucap2013.org/

Conference

Conference	7th European Conference on Antennas and Propagation
Number	7
Location	Swedish Exhibition and Congress Centre
Country/Territory	Sweden
City	Gothenburg
Period	08/04/2013 → 12/04/2013
Internet address	https://www.eucap2013.org/

Keywords

Reflectarray antenna
Reflectarray element
Dual band
Circularly polarized
Concentric dual split-loop

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title = "An offset-fed 20/30 GHz dual-band circularly polarized reflectarray antenna",

abstract = "A dual-frequency circularly polarized offset reflectarray antenna for Ka-band satellite communication is presented. The reflectarray is designed using the concentric dual split-loop element which enables full 360° phase adjustment simultaneously in two separate frequency bands. The elements have been optimized to suppress the cross-polar reflection. Thereafter, the element data is used for synthesis of the reflectarray layout and computation of the associated radiation patterns. The reflectarray is 400mm × 400mm and radiates LHCP at 19.95 GHz and RHCP at 29.75 GHz. Aperture efficiencies of 58% and 60% are obtained at these frequencies, and the cross-polarization is more than 25 dB below peak gain.",

keywords = "Reflectarray antenna, Reflectarray element, Dual band, Circularly polarized, Concentric dual split-loop",

author = "Smith, {Thomas Gunst} and Niels Vesterdal and Ulrich Gothelf and Kim, {Oleksiy S.} and Olav Breinbjerg",

year = "2013",

language = "English",

isbn = "978-1-4673-2187-7 ",

pages = "2959 -- 2962",

booktitle = "7th European Conference on Antennas and Propagation",

publisher = "IEEE",

address = "United States",

note = "7th European Conference on Antennas and Propagation , EuCAP 2013 ; Conference date: 08-04-2013 Through 12-04-2013",

url = "https://www.eucap2013.org/",

}

TY - GEN

T1 - An offset-fed 20/30 GHz dual-band circularly polarized reflectarray antenna

AU - Smith, Thomas Gunst

AU - Vesterdal, Niels

AU - Gothelf, Ulrich

AU - Kim, Oleksiy S.

AU - Breinbjerg, Olav

N1 - Conference code: 7

PY - 2013

Y1 - 2013

N2 - A dual-frequency circularly polarized offset reflectarray antenna for Ka-band satellite communication is presented. The reflectarray is designed using the concentric dual split-loop element which enables full 360° phase adjustment simultaneously in two separate frequency bands. The elements have been optimized to suppress the cross-polar reflection. Thereafter, the element data is used for synthesis of the reflectarray layout and computation of the associated radiation patterns. The reflectarray is 400mm × 400mm and radiates LHCP at 19.95 GHz and RHCP at 29.75 GHz. Aperture efficiencies of 58% and 60% are obtained at these frequencies, and the cross-polarization is more than 25 dB below peak gain.

AB - A dual-frequency circularly polarized offset reflectarray antenna for Ka-band satellite communication is presented. The reflectarray is designed using the concentric dual split-loop element which enables full 360° phase adjustment simultaneously in two separate frequency bands. The elements have been optimized to suppress the cross-polar reflection. Thereafter, the element data is used for synthesis of the reflectarray layout and computation of the associated radiation patterns. The reflectarray is 400mm × 400mm and radiates LHCP at 19.95 GHz and RHCP at 29.75 GHz. Aperture efficiencies of 58% and 60% are obtained at these frequencies, and the cross-polarization is more than 25 dB below peak gain.

KW - Reflectarray antenna

KW - Reflectarray element

KW - Dual band

KW - Circularly polarized

KW - Concentric dual split-loop

M3 - Article in proceedings

SN - 978-1-4673-2187-7

SP - 2959

EP - 2962

BT - 7th European Conference on Antennas and Propagation

PB - IEEE

T2 - 7th European Conference on Antennas and Propagation

Y2 - 8 April 2013 through 12 April 2013

ER -

An offset-fed 20/30 GHz dual-band circularly polarized reflectarray antenna

Abstract

Conference

Keywords

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