DocumentCode
877568
Title
A Printed Circuit Balun for Use with Spiral Antennas
Volume
8
Issue
3
fYear
1960
fDate
5/1/1960 12:00:00 AM
Firstpage
319
Lastpage
325
Abstract
A novel printed circuit balun is described which is particularly well suited to applications where space is at a premium. The design utilizes unshielded strip transmission line, but is readily adaptable to all of the common printed circuit transmission line techniques. When the balun is housed within the cavity of a spiral antenna, boresight error is virtually eliminated, ellipticity ratios of less than 2 db are maintained over an azimuth angle greater than ± 60°, and the input standing-wave ratio is less than 2:1 over an octave frequency range. Experimental results are given and additional applications are described.
Keywords
Azimuth; Distributed parameter circuits; Equivalent circuits; Frequency; Impedance matching; Microwave devices; Power transmission lines; Printed circuits; Spirals; Transmission line theory;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IRE Transactions on
Publisher
ieee
ISSN
0097-2002
Type
jour
DOI
10.1109/TMTT.1960.1125239
Filename
1125239
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