Invention Grant
- Patent Title: Discrete time polyphase mixer
- Patent Title (中): 离散时间多相混合器
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Application No.: US13049197Application Date: 2011-03-16
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Publication No.: US08478220B2Publication Date: 2013-07-02
- Inventor: Stephen Allott , Thomas Gregory McKay
- Applicant: Stephen Allott , Thomas Gregory McKay
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04B1/26
- IPC: H04B1/26 ; H04B1/30

Abstract:
Embodiments of a radio frequency (RF) circuit provide translational filtering in accordance with an input impedance response that is an impedance image of a reactive circuit impedance response from a polyphase reactive circuit. The RF circuit may include a first mixer circuit that provides a first frequency offset for the impedance image and a second mixer circuit that provides an additional frequency offset. Accordingly, the second mixer circuit may allow for adjustments to a total frequency offset of the impedance image. The second mixer circuit may also be configured so that the impedance image rejects a negative frequency impedance response of the reactive circuit impedance response.
Public/Granted literature
- US20120062285A1 DISCRETE TIME POLYPHASE MIXER Public/Granted day:2012-03-15
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