Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2007-03-06
2007-03-06
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S154000, C333S161000
Reexamination Certificate
active
11081237
ABSTRACT:
A direct current (DC) isolated phase inverter and a ring hybrid coupler including the DC isolated phase inverter is provided. The ring hybrid coupler including the DC isolated phase inverter comprising: a first, second, third and fourth transmission line arm; a first port connected to the first arm, second port connected to the second arm, third port connected to the third arm and fourth port connected to the fourth arm; and a DC phase inverter inserted within one of the first, second, third and fourth arms, wherein the DC phase inverter comprises: a transmission line comprising a plurality of signal and ground traces, wherein the plurality of signal and ground traces are interchanged; and a plurality of capacitors disposed in series with the ground traces, wherein the plurality of capacitors isolate the DC phase inverter from a device connected to the transmission line.
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Chirala Mohan K.
Floyd Brian A.
Zwick Thomas M.
F. Chau & Associates LLC
Glenn Kimberly E.
International Business Machines - Corporation
Pascal Robert
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