DocumentCode :
1000905
Title :
Broad-band impedance matching of rectangular waveguide phased arrays
Author :
Chen, Chao-chun
Author_Institution :
Hughes Aircraft Company, Fullerton, CA, USA
Volume :
21
Issue :
3
fYear :
1973
fDate :
5/1/1973 12:00:00 AM
Firstpage :
298
Lastpage :
302
Abstract :
A method for wide-band wide-angle impedance matching of rectangular waveguide phased arrays is presented. A maximum VSWR of 2.3:1 is achieved over a 50 percent bandwidth with a 
half-angle conical coverage using an element spacing six percent less than the condition required for grating lobe suppression. A further reduction in element spacing, bandwidth, or scan volume results in an even better impedance match. Simplicity and high radiation efficiency are the unique features of this matching technique.
half-angle conical coverage using an element spacing six percent less than the condition required for grating lobe suppression. A further reduction in element spacing, bandwidth, or scan volume results in an even better impedance match. Simplicity and high radiation efficiency are the unique features of this matching technique.Keywords :
Impedance-matching; Phased arrays; Waveguide arrays; Antenna feeds; Antennas and propagation; Impedance matching; Inductors; Phased arrays; Poles and towers; Rectangular waveguides; Spirals; Voltage; Wire;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1973.1140509
Filename :
1140509
Link To Document :
