High frequency electrical network

Wave transmission lines and networks – Plural channel systems – Having branched circuits

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Details

333226, 333110, H01P 1213

Patent

active

046600051

ABSTRACT:
An h.f. electrical network consists of a transmission line device in the form of a closed cavity having two end plates between which extend four quarter wave resonators positioned symmetrically about an axis passing through both end plates. The device is provided with four ports connected to two pairs of transmission line loops each of which couple equally into two adjacent resonators. The device exhibits frequency selective properties and can be used to couple two carrier frequencies into a common antenna while maintaining electrical isolation between the two signal sources.

REFERENCES:
patent: 2250308 (1941-07-01), Lindenblad
patent: 2420354 (1947-05-01), Carter
patent: 3068428 (1962-12-01), Alford et al.
patent: 3886499 (1975-05-01), Hutchinson
patent: 4231001 (1980-10-01), Hutchinson

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