Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1981-09-28
1983-07-19
Gensler, Paul L.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333238, H01P 518
Patent
active
043946305
ABSTRACT:
Transmission line directional coupler directivity is improved by providing compensation for even and odd mode phase velocity differences. Teeth are added to the edges of the coupler electrodes remote from the coupling region separating the electrodes, so that the phase velocity of even mode and odd mode waves is made similar over a wide frequency band. The compensation approach is applicable to both suspended substrate and stripline type directional couplers, where the uncompensated odd mode velocity is less than the even mode velocity.
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Geyer, Jr. Bernard H.
Kenyon S. Wayne
Nelson Conrad E.
Baker Carl W.
General Electric Company
Gensler Paul L.
Lang Richard V.
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