Lumped element transmission line frequency multiplexer

Details Lumped element transmission line frequency multiplexer Lumped element transmission line frequency multiplexer

2005-07-26

2005-07-26

Takaoka, Dean A. (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S189000

Reexamination Certificate

active

06922117

ABSTRACT:
A frequency multiplexer is disclosed. The frequency multiplexer comprises a lumped element transmission line comprising a plurality of inductances and capacitances, and a band pass filter coupled to a node of the lumped element transmission line, where the band pass filter includes a branch port that is coupled to the lumped element transmission line at a pass band of the band pass filter, and where the band pass filter exhibits a capacitive impedance in a stop band of the band pass filter. The band pass filter may comprise a series resonant circuit and a parallel resonant circuit, where the parallel resonant circuit is parallel resonant at nominally the same frequency at which the series resonant circuit is series resonant. An additional series resonant circuit may be coupled to the lumped element transmission line, where, at a resonant frequency of the additional series resonant circuit, the additional series resonant circuit is located at an electrical length of 90 degrees away from the series resonant circuit and the parallel resonant circuit on the lumped element transmission line, where the additional series resonant circuit exhibits a capacitive impedance at off-resonant frequencies.

REFERENCES:
patent: 5294898 (1994-03-01), Dworsky et al.
patent: 5859473 (1999-01-01), Ikata et al.
patent: 6262637 (2001-07-01), Bradley et al.
patent: 6472954 (2002-10-01), Ruby et al.

Affiliated with

Also associated with

Rating

Lumped element transmission line frequency multiplexer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lumped element transmission line frequency multiplexer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lumped element transmission line frequency multiplexer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3424392