Low-rise duplexer

Details Low-rise duplexer Low-rise duplexer

2004-11-30

2009-12-22

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S202000, C333S206000

Reexamination Certificate

active

07636025

ABSTRACT:
A duplexer that includes an input filter (Rx filter), an output filter (Tx filter), and one or more of an isolation line and a delay line is disclosed. The Rx and Tx filters are microwave (MW) resonators and include continuous, internally metallized holes in a ceramic body. The ceramic body includes a metal coating substantially covering the external surfaces of the ceramic body except for an end face and one or more recesses on a bottom side of the ceramic body. An output of the Rx filter on the bottom side of the ceramic body is electrically connected to a balun. The ceramic body has a first height in an area of the Tx filter and a second height in an area of the Rx filter, the second height being less than the first height.

REFERENCES:
patent: 5045824 (1991-09-01), Metroka
patent: 5177458 (1993-01-01), Newell et al.
patent: 5572175 (1996-11-01), Tada et al.
patent: 5686873 (1997-11-01), Tada et al.
patent: 6014067 (2000-01-01), Matsumoto et al.
patent: 6278343 (2001-08-01), Okada et al.
patent: 6420942 (2002-07-01), Hiroshima et al.
patent: 6525626 (2003-02-01), Mandai et al.
patent: 6801101 (2004-10-01), Hiroshima et al.
patent: 2003/0214367 (2003-11-01), Uriu et al.
patent: 199 50 353 (2000-05-01), None
patent: 0 552 761 (1993-07-01), None
patent: 62-235801 (1987-10-01), None
patent: 2003-209413 (2003-07-01), None
English translation for Written Opinion for PCT/EP2004/013590.

Affiliated with

Also associated with

Rating

Low-rise duplexer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-rise duplexer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-rise duplexer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4145405