DocumentCode :
986393
Title :
Electronic scanning of linear slot arrays using diode irises
Author :
Goebels, Frank J., Jr. ; Forman, Barry J. ; Nonnemaker, Clarence H., Jr.
Author_Institution :
Hughes Aircraft Co., Culver City, CA, USA
Volume :
16
Issue :
1
fYear :
1968
fDate :
1/1/1968 12:00:00 AM
Firstpage :
8
Lastpage :
14
Abstract :
Semiconductor diodes were employed as electronic iris control elements to scan linear slot arrays at 
-band. An iris cluster of four varactor diodes mounted inside the waveguide around each slot provided 
of phase control for slot coupling levels up to -15 dB and a reduced range of phase control for couplings up to -8 dB. Two linear arrays were fabricated with different iris cluster configurations: 1) A ten-slot array, with vertically mounted diodes, electronically scanned sum and difference patterns up to 
; 2) a five-slot array, with horizontally mounted diodes, scanned sum patterns up to 
. Both iris configurations had an RF power handling capability of about 0.1 mW.
-band. An iris cluster of four varactor diodes mounted inside the waveguide around each slot provided of phase control for slot coupling levels up to -15 dB and a reduced range of phase control for couplings up to -8 dB. Two linear arrays were fabricated with different iris cluster configurations: 1) A ten-slot array, with vertically mounted diodes, electronically scanned sum and difference patterns up to ; 2) a five-slot array, with horizontally mounted diodes, scanned sum patterns up to . Both iris configurations had an RF power handling capability of about 0.1 mW.Keywords :
Diodes; Slot arrays; Waveguide discontinuities; Aircraft; Electromagnetic waveguides; Iris; Phase control; Radio frequency; Rectangular waveguides; Semiconductor diodes; Semiconductor waveguides; Voltage; Waveguide discontinuities;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1968.1139106
Filename :
1139106
Link To Document :
