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Low-Cost X/Ku/Ka-Band Dual-Polarized Array With Shared Aperture

Mao, Chunxu and Gao, Steven and Luo, Qi and Rommel, Tobias and Chu, Qing-Xin (2017) Low-Cost X/Ku/Ka-Band Dual-Polarized Array With Shared Aperture. IEEE Transactions on Antennas and Propagation, 65 (7), pp. 3520-3527. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TAP.2017.2700161 ISSN 0018-926X

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Abstract

This paper presents a novel tri-band (X/Ku/Ka-band) planar antenna array with dual polarizations and shared aperture. Compared with traditional dual-polarized arrays, the proposed array has advantages of low cost, low profile, and high integration. Three types of antennas resonating at different frequencies, including the perforated patch, stacked patch, and slim crosspatch, are innovatively interleaved in the same aperture. The crosspatch fed by proximity coupling is presented as Ku-band element for its advantages of compact size, high isolation, and pure polarization. The techniques such as series feed and reverse feed are utilized to implement the six feed networks in a compact size with reduced cross polarizations. Measured results agree well with the simulations, showing three operation bands at X-, Ku-, and Ka-bands with the bandwidths of 3.6%, 6.7%, and 5.3%, respectively. The antenna also exhibits excellent radiation performance with the cross-polarization discrimination over 25 dB at the three bands. To the best of the author’s knowledge, this is the first shared-aperture X/Ku/Ka-band dual-polarized antenna array reported, which is useful for potential synthetic aperture radar applications.

Item URL in elib:https://elib.dlr.de/115175/
Document Type:Article
Title:Low-Cost X/Ku/Ka-Band Dual-Polarized Array With Shared Aperture
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Mao, Chunxuuniversity of kentUNSPECIFIED
Gao, Stevenuniversity of kentUNSPECIFIED
Luo, Qiuniversity of kentUNSPECIFIED
Rommel, TobiasTobias.Rommel (at) dlr.dehttps://orcid.org/0000-0003-1864-7585
Chu, Qing-XinSouth China University of TechnologyUNSPECIFIED
Date:1 July 2017
Journal or Publication Title:IEEE Transactions on Antennas and Propagation
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:65
DOI :10.1109/TAP.2017.2700161
Page Range:pp. 3520-3527
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Series Name:IEEE Transactions on Antennas and Propagation
ISSN:0018-926X
Status:Published
Keywords:Antenna, array, dual-polarized, shared aperture, synthetic aperture radar (SAR), SAR antenna, tri-band
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Entwicklung eines Mini-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Rommel, Tobias
Deposited On:13 Nov 2017 09:18
Last Modified:23 Feb 2019 00:22

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