elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Low-Profile Aperture-Shared X/Ka-band Dual-Polarized Antenna for DBF-SAR Applications

Mao, Chunxu and Gao, Stephen and Rommel, Tobias (2017) Low-Profile Aperture-Shared X/Ka-band Dual-Polarized Antenna for DBF-SAR Applications. In: 2017 International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications, iWAT 2017, pp. 104-107. International Workshop on Antenna Technology, 2017-03-01 - 2017-03-03, Athens, Greece. doi: 10.1109/IWAT.2017.7915329.

Full text not available from this repository.

Abstract

In this paper, a novel low profile aperture-shared X/Ka-band dual-polarized antenna array is proposed for space-borne digital beamforming (DBF) synthetic aperture radar (SAR) applications. To begin with, the DBF concept and its operation mechanism for SAR system are discussed. In this work, every 2 × 2 Ka-band elements are combined as a subarray and connected to a channel while each one X-band element is connected to a channel. Then, a novel slot-antenna based on substrate-integrated-cavity (SIC) is proposed. The resonant frequency can be controlled by adjusting the length of the U-shaped slot. To share a same aperture, the X-band antenna is interlaced with the Ka-band subarray on the same plane. To verify the concept, an antenna operating at 9.6/35.75 GHz is designed, prototyped and tested. The results demonstrate good performance in terms of impedance matching, channel isolation, and cross polarization level. Such highly integrated low profile antenna can significantly reduce the potential cost of the DBF-SAR system.

Item URL in elib:https://elib.dlr.de/110099/
Document Type:Conference or Workshop Item (Speech)
Title:Low-Profile Aperture-Shared X/Ka-band Dual-Polarized Antenna for DBF-SAR Applications
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Mao, ChunxuUniversity of KentUNSPECIFIED
Gao, StephenUniversity of KentUNSPECIFIED
Rommel, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-1864-7585
Date:1 March 2017
Journal or Publication Title:2017 International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications, iWAT 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1109/IWAT.2017.7915329
Page Range:pp. 104-107
Status:Published
Keywords:dual-band; dual-polarized; digital beamforming (DBF); low-profile; synthetic aperture radar (SAR)
Event Title:International Workshop on Antenna Technology
Event Location:Athens, Greece
Event Type:international Conference
Event Dates:2017-03-01 - 2017-03-03
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Development of a mini-SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Rommel, Tobias
Deposited On:02 Jan 2017 09:16
Last Modified:06 Feb 2018 13:05

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.