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

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

2006-03-24

2008-09-30

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S109000

Reexamination Certificate

active

07429903

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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