Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2008-03-27
2011-12-06
Takaoka, Dean (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S238000
Reexamination Certificate
active
08072287
ABSTRACT:
Aspects of a method and system for configurable differential or single-ended signaling in an integrated circuit. In this regard, a balun comprising one or more loops fabricated in a plurality of metal layers in an integrated circuit may enable conversion between unbalanced and balanced signals. In this regard, balanced signal output by a power amplifier may be converted to a balanced signal for transmission via an antenna. Similarly, an unbalanced signal received by an antenna may be converted to a balanced signal for amplification by an amplifier with a balanced input. The loops may be fabricated in transmission line media such as microstrip and/or stripline. The loops may comprise ferromagnetic material which may be deposited on and/or within the IC. Signals converted via the balun may be in the 61 GHz-61.5 GHz ISM band.
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Broadcom Corporation
McAndrews Held & Malloy Ltd.
Takaoka Dean
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