Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2005-12-09
2008-11-04
Pascal, Robert J. (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S126000, C333S129000
Reexamination Certificate
active
07446628
ABSTRACT:
According to one aspect, the subject matter described herein includes a tunable duplexer. The tunable duplexer can include a common node for communicating signals comprising a plurality of frequencies. Further, the tunable duplexer can include first and second band nodes for communicating first and second predetermined frequency bands, respectively, of the plurality of frequencies. The tunable duplexer can also include a filter coupled between the common node and the first and second band nodes. The filter can include pole-zero elements adapted to pass signals of the first and second predetermined frequency bands to the first and second band nodes, respectively. Further, the filter can be adapted to block signals of the first and second predetermined frequency band to the second and first band nodes, respectively.
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International Search Report dated Feb. 12, 2008 for PCT Application No. PCT/US05/44678.
Glenn Kimberly E
Jenkins Wilson Taylor & Hunt, P.A.
Pascal Robert J.
Wispry, Inc.
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