Dual directional coupler with multi-stepped forward and...

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

Reexamination Certificate

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Details

Other Related Categories

C333S109000

Type

Reexamination Certificate

Status

active

Patent number

11388562

Description

ABSTRACT:
A dual directional coupler includes a housing, a main conductor, a forward coupled conductor and a reverse coupled conductor. The main conductor, the forward coupled conductor and the reverse coupled conductor are arranged in parallel within the housing such that the main conductor and the forward coupled conductor define a first two section quarter wave directional coupler, and the main conductor and the reverse coupled conductor define a second two section quarter wave directional coupler.

REFERENCES:
patent: 2606974 (1952-08-01), Wheeler
patent: 3113277 (1963-12-01), Casper et al.
patent: 3508170 (1970-04-01), Poulter
patent: 5424694 (1995-06-01), Maloratsky et al.
patent: 5625328 (1997-04-01), Coleman, Jr.
patent: 6066994 (2000-05-01), Shepherd et al.
patent: 6573807 (2003-06-01), Noe
patent: 6600307 (2003-07-01), Turski et al.

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