Invention Grant
- Patent Title: Spurious component reduction
- Patent Title (中): 杂散成分减少
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Application No.: US10829801Application Date: 2004-04-21
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Publication No.: US07613249B1Publication Date: 2009-11-03
- Inventor: King Chun Tsai
- Applicant: King Chun Tsai
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H04L25/03
- IPC: H04L25/03

Abstract:
Apparatus, systems, and methods implementing techniques for reducing spurious components are described. According to one aspect, a wideband polyphase filter filters an input signal that has an associated first frequency. The wideband polyphase filter has poles corresponding to a first filter frequency and a second filter frequency, where the two filter frequencies are different. According to another aspect, a mixer mixes the filtered signal with a local-oscillator signal at a second frequency to produce an upconverted signal, where the second frequency is substantially an integer multiple of the first frequency.
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