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US 2003/0117201 A1Published application
Quadrature signal generation with phase error correction
AssigneeBerkana Wireless, Inc.
InventorSung-ho Wang
Life of this patent
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Abstract
A quadrature signal generator includes a polyphase filter where four resistive elements and four variable capacitive elements are connected alternately in series to form a loop; and a phase corrector that variably controls the capacitance of the variable capacitive elements.
Claims9
A quadrature signal generator including:
- a polyphase filter where four resistive elements and four variable capacitive elements are connected alternately in series to form a loop;
- and
- a phase corrector that variably controls the capacitance of the variable capacitive elements.
Dependencies are inferred from the claim text.