Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2011-01-04
2011-01-04
Takaoka, Dean O (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S101000, C333S109000
Reexamination Certificate
active
07863998
ABSTRACT:
Methods and systems for processing signals via directional couplers embedded in an integrated circuit package are disclosed and may include generating via a directional coupler, one or more output RF signals that may be proportional to a received RF signal. The directional coupler may be integrated in a multi-layer package. The generated RF signal may be processed by an integrated circuit electrically coupled to the multi-layer package. The directional coupler may include quarter wavelength transmission lines, which may include microstrip or coplanar structures. The directional coupler may be electrically coupled to one or more variable capacitances in the integrated circuit. The variable capacitance may include CMOS devices in the integrated circuit. The directional coupler may include discrete devices, which may be surface mount devices coupled to the multi-layer package or may be devices integrated in the integrated circuit. The integrated circuit may be flip-chip bonded to the multi-layer package.
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Broadcom Corporation
McAndrews Held & Malloy Ltd.
Takaoka Dean O
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