Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1986-05-23
1988-05-03
LaRoche, Eugene R.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333 21R, H01P 512
Patent
active
047423170
ABSTRACT:
A coupler for extracting energy in the TE.sub.21 mode from a circular waveguide propagating energy in both the TE.sub.11 and TE.sub.21 modes, characterized in that an annular iris on the inner circumference of the waveguide and a longitudinally stepped transition portion of the waveguide define therebetween a TE.sub.21 mode resonant cavity which is coupled via a narrow axially extending rectangular slot contained in the wall portion of the waveguide which defines the cavity. At least one external resonant chamber may be provided on the waveguide through which the TE.sub.21 mode energy is extracted and transmitted to a detector thereof via the slot, which chamber cooperates with the resonant cavity to define a multiple resonant filter for improving the matching to the TE.sub.21 mode while reducing the perturbation to the TE.sub.11 mode.
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Berard Jr. Clement A.
General Electric Company
Ham Seung
LaRoche Eugene R.
Meise William H.
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