Modular frequency division filter

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

Reexamination Certificate

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Details

C333S126000, C333S129000, C455S078000, C455S082000

Reexamination Certificate

active

07126440

ABSTRACT:
The present invention is a modular frequency division filter having an antenna port that connects to two or three transmission paths. Each transmission path includes either a band pass filter or a duplexer to separate the received signal by frequency. Frequency phase shifters or shunt inductors may be included to further enhance the frequency separation. Following frequency separation, the separated signal is transceived by a device operating at the respective separated frequency.

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