Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2007-05-22
2007-05-22
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S206000
Reexamination Certificate
active
10974391
ABSTRACT:
An apparatus and method are presented for combining electrical signals. The apparatus includes a phase-shift distributed element with an input to accept a first signal and an output to supply the first signal with a phase-shift; and a filter with a first signal port connected to the phase-shift element output, a second signal port to accept a second signal, and a third signal port to supply combined and filtered first and second signals. The phase-shift element has a signal path with a predetermined length and the phase-shift element output supplies the first signal with a phase angle shift responsive to the length of the signal path. In one example, the phase-shift element is formed from monoblock and coaxial elements, either singly or in combination, and is a tank circuit resonator in the filter.
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Camarillo Richard J.
Toncich Stanley S.
Glenn Kimberly E
Kyocera Wireless Corp.
Pascal Robert
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