Wave transmission lines and networks – Attenuators
Patent
1975-03-06
1976-06-01
Gensler, Paul L.
Wave transmission lines and networks
Attenuators
H01P 308
Patent
active
039612961
ABSTRACT:
First and second spaced apart, coextensive ground planes with a center conductor positioned therebetween in spaced relation from each of said planes and the volume defined by said planes being filled with a dielectric material fixedly engaging said planes and said center conductor to form a strip-line transmission line, the characteristic impedance of said transmission line being adjusted to a predetermined amount by forming a channel through one of said ground planes to the center conductor. The channel in the strip-line increases the characteristic impedance so that the width of the center conductor can be increased, for a specific characteristic impedance, to significantly improve control of the production of the strip-line.
REFERENCES:
patent: 2812501 (1957-11-01), Sommers
patent: 3044066 (1962-07-01), Butler
patent: 3094677 (1963-06-01), Theriot
patent: 3471812 (1969-10-01), Lackner
patent: 3659228 (1972-04-01), Napoli
patent: 3681717 (1972-08-01), Martin
patent: 3696433 (1972-10-01), Killion et al.
Gensler Paul L.
Gillman James W.
Motorola Inc.
Parsons Eugene A.
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