NDLI: Multiband feed using coaxial configuration

Content Provider	IEEE Xplore Digital Library
Author	Bhattacharyya, A. Eliassi, R. Hansen, C. Metzen, P.
Copyright Year	2009
Description	Author affiliation: Antenna Product Center, Northrop Grumman Space Technology, Redondo Beach, CA 90278, USA (Bhattacharyya, A.; Eliassi, R.; Hansen, C.; Metzen, P.)
Abstract	In a communication satellite, multiple frequency bands are used for transmitting and receiving communication, data and tracking signals. In this paper we present design, analysis and test results of a dual-aperture coaxial multiband feed horn. The coaxial configuration is particularly useful for the frequency bands that are widely separated. Our design goal was to operate at S-, Ku-, K- and Ka-bands. In our design the Ku through Ka bands are launched through a multiflared circular horn while the S band is launched through a stepped and flared coaxial horn sharing a common axis with the circular horn (Fig. 1). A method of moment (MoM) based software is developed to analyze the structure. It is found that for the S-band, the aperture impedance significantly affects the electrical performance. For the high frequency bands, the mutual coupling between the circular and coaxial apertures plays an important role on the performance. The simulated results including mutual coupling effects agree well with the measured data. This multiband feed design allows a compact, low weight, single offset reflector configuration as opposed to a Cassegrain antenna system that requires two separate feeds and a dichroic subreflector to accommodate multiple bands.
Starting Page	1
Ending Page	4
File Size	5314966
Page Count	4
File Format	PDF
ISBN	9781424436477
ISSN	15223965
DOI	10.1109/APS.2009.5172247
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Feeds Coaxial components Frequency Apertures Mutual coupling Artificial satellites Testing Moment methods Impedance Antenna measurements
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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