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US 7,248,850 B2Granted
Passive subharmonic mixer design
AssigneeNanoamp Solutions, Inc.
InventorDavid H. Shen
Life of this patent
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Abstract
A mixer design is described that permits greater integration on standard silicon chips with an improvement in power and linearity compared to previous mixer designs, enabling low-power, high performance RF reception.
Claims9
A mixer comprising:
- a first set of differential switches wherein source terminals of the first set of differential switches are configured to couple to a differential RF input signal,
- wherein drain terminals of the first set of differential switches are connected to source terminals of a second set of differential switches,
- wherein drain terminals of the second set of differential switches comprise mixer outputs,
- wherein gate terminals of the first set of differential switches and the second set of differential switches are connected to differential local oscillator sources that are phase shifted from each other, and
- wherein each of the first and the second sets of differential switches comprises of a pair of complementary gate-controlled transistors.
2 more elements
Dependencies are inferred from the claim text.