NDLI: Designing a 32 element array at 76GHz with a 33dB taylor distribution in waveguide for a radar system

Content Provider	IEEE Xplore Digital Library
Author	Anthony, T.K. Zaghloul, A.I.
Copyright Year	2009
Description	Author affiliation: US Army Research Laboratory, Adelphi, MD, 20783-1197, USA (Anthony, T.K.; Zaghloul, A.I.)
Abstract	A compact linear pyramidal horn array for a personnel avoidance radar system for robotic vehicles was designed, fabricated and measured. The array will be used as the receive antenna in a system that is presented in a companion paper [2]. The horn array is fed with a waveguide power divider that is designed to produce the required Taylor aperture distribution on the array front. The tapered aperture produces low sidelobes that are needed for low interference in the radar system. The 32-element array with 1.3 λ element size and element spacing in the azimuth direction produces a narrow beam. The beam is scanned using a microwave switch that operates on two 8 stacked arrays for 16 scanning steps covering a scanning range of ± 15 degrees. The scanning arrays act as the receiving antenna, where insertion losses have to be minimized for low noise figures. The low loss is achieved using the waveguide divider. The integration of the array and the power divider in one structure helps in reducing the losses. The transmit antenna is a pyramidal horn of dimensions 2.6 λ × 2.6 λ, which produces the required broadbeam. The transmit and receive antennas' gain satisfy the requirements for the radar link.
Starting Page	1
Ending Page	4
File Size	8208609
Page Count	4
File Format	PDF
ISBN	9781424436477
ISSN	15223965
DOI	10.1109/APS.2009.5172133
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	Radar antennas Receiving antennas Antenna arrays Power dividers Switches Linear antenna arrays Personnel Radar measurements Robots Vehicles
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
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