DocumentCode
907353
Title
High Average Power S-Band Digital Phase Shifter
Author
Moore, Robert Avery ; Kern, Gus M. ; Cooper, Lawson French
Volume
22
Issue
6
fYear
1974
fDate
6/1/1974 12:00:00 AM
Firstpage
626
Lastpage
634
Abstract
A 100-kW-peak Z-kW-average-power liquid-cooled ferrite digital phase shifter has been constructed using beryllia cooling of the ferrite toroid to meet single axis scanned array requirements. The phase-shift cross section external to the ferrite toroids is completely filled with the beryllia. Experiments indicate that the maximum temperature rise in the ferrite is no greater than 45° C. In tests using flux drive to 2 kW, the phase shifter exhibits a maximum phase drift of ± 6° for 90° differential phase shift. The differential phase shift versus frequency varies less than ± 0.5° for a 3-percent bandwidth.
Keywords
Bandwidth; Boron; Conducting materials; Ferrites; Frequency; Garnets; Phase shifters; Phased arrays; Thermal conductivity; Thermal resistance;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.1974.1128304
Filename
1128304
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