DocumentCode
977975
Title
MMIC vector modulator for a crossbar BFN
Author
Grajal, J. ; Gismero, J. ; Mahfoudi, M.
Author_Institution
Polytechnical Univ. of Madrid, Spain
Volume
32
Issue
13
fYear
1996
fDate
6/20/1996 12:00:00 AM
Firstpage
1210
Lastpage
1211
Abstract
A 1.4-2.7 GHz monolithic vector modulator with continuous amplitude and phase control has been developed. Each state within a full 360° phase range and a dynamic range >15 dB is generated by combining two of three vectors which have variable amplitude and 120° apart. The control in amplitude for the three vectors is performed by sets of two MESFETs working as dual-gate MESFETs, and the phase shift of 120° for these vectors is obtained through LC filters over the 1.4-2.7 GHz band. The circuit will be used as the control node in a crossbar beam forming network (CBFN)
Keywords
MESFET integrated circuits; MMIC; modulators; 1.4 to 2.7 GHz; LC filters; MMIC vector modulator; continuous amplitude control; continuous phase control; control node; crossbar BFN; crossbar beam forming network; dual-gate MESFETs; dynamic range; phase shift;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19960797
Filename
503008
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