Communications: radio wave antennas – Antennas – With polarization filter or converter
Patent
1988-03-11
1989-03-21
Gensler, Paul
Communications: radio wave antennas
Antennas
With polarization filter or converter
333111, 333115, H01Q 1900, H01P 504, H01P 518
Patent
active
048147800
ABSTRACT:
The variable directional coupler of the subject invention employs 3, 4 or n branches in TEM transmission media, such as coax, stripline and microstrip. Precise control of the coupling is acheived by a variable susceptance connected near the mid-point of the crossover.
REFERENCES:
patent: 3059186 (1962-10-01), Allen
patent: 3359513 (1967-12-01), Kelley
patent: 3659227 (1970-09-01), Whistler
patent: 4697160 (1987-09-01), Clark
Cho Ching-Fai
Sterns William G.
Gensler Paul
ITT Gilfillan A Division of ITT Corporation
Twomey Thomas N.
Walsh Robert A.
Werner Mary C.
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