Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2005-12-06
2005-12-06
Chang, Daniel D. (Department: 2819)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S116000
Reexamination Certificate
active
06972638
ABSTRACT:
A directional coupler includes a transmission line, and a coupling line, the transmission line being coupled with the coupling line. The transmission line is located at a height position different from that of the coupling line with respect to a reference plane. The transmission line and the coupling line have portions that do not overlap each other.
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Moriuchi Toshiaki
Usami Kunihiro
Chang Daniel D.
Fujitsu Quantum Devices Limited
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