NDLI: A Concept for a Lens Configuration for 360 <formula> <tex>$^{circ}$</tex> </formula> Scanning

Content Provider	IEEE Xplore Digital Library
Author	Zaghloul, A.I. Junwei Dong
Copyright Year	2002
Abstract	A concept is presented for a lens configuration that produces scanned beams over the full azimuth angular domain of 360deg. Conventional microwave lenses produce scanned beams over limited angular range that is less than +/-90deg . A number of beam ports transmit signals to illuminate a number of receive ports with an aperture amplitude and phase tapers. The receive ports are in turn connected to a radiating aperture with transmission lines of prescribed lengths. This concept uses the beam ports and the receive ports in an interleaving sequence such that adjacent ports alternate beam and receive functions. The result is a lens that produces scanned beams on opposite sides of the structure, resulting in a 360deg scanning range. The structure can use multiple opposing facets or continuous circular port and radiating element contours. The multiple opposing facets make the radiating structure in the form of a polygon, while the circular contour will produce a circular array structure. The concept may be extended to three-dimensional conformal arrays with three-dimensional scanning.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	985
Ending Page	988
Page Count	4
File Size	791191
File Format	PDF
ISSN	15361225
Volume Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lenses Phased arrays Azimuth Apertures Transmission lines Interleaved codes Laboratories wide-angle scanning Beamforming microwave lens
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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