DocumentCode
30195
Title
Theory of Beam Scanning for Slot Array Antenna Excited by Slow Wave
Author
Bhattacharyya, Arun
Author_Institution
Northrop Grumman Corp., Redondo Beach, CA, USA
Volume
57
Issue
2
fYear
2015
fDate
Apr-15
Firstpage
96
Lastpage
103
Abstract
The operating principle of a very special type of slot array antennas excited by a slow-wave mode is presented. The arrays exhibit beam-scanning capability with mechanical rotation about the aperture-normal axis. The relation between the rotation angle and the scan angle is deduced. Numerical results for beam scanning are shown, and other performance characteristics including frequency scan, bandwidth, and polarization of the antennas are presented. Important differences of the characteristic features from that of a conventional array are discussed.
Keywords
polarisation; slot antenna arrays; aperture-normal axis; bandwidth; beam-scanning capability; characteristic features; frequency scan; mechanical rotation; operating principle; performance characteristics; polarization; rotation angle; scan angle; slot array antenna; slow-wave mode; Antenna arrays; Antenna theory; Array antennas; Bandwidth allocation; Beam scanning; Gratings; Slot antennas;
fLanguage
English
Journal_Title
Antennas and Propagation Magazine, IEEE
Publisher
ieee
ISSN
1045-9243
Type
jour
DOI
10.1109/MAP.2015.2414532
Filename
7087339
Link To Document