Invention Grant
- Patent Title: Inductor based switching mixer circuit
- Patent Title (中): 基于电感的开关混频器电路
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Application No.: US14693440Application Date: 2015-04-22
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Publication No.: US09407304B1Publication Date: 2016-08-02
- Inventor: Peter Cornelius Pawliuk , Nan Sen Lin
- Applicant: BLACKBERRY LIMITED
- Applicant Address: CA Waterloo, Ontario
- Assignee: BLACKBERRY LIMITED
- Current Assignee: BLACKBERRY LIMITED
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Perry + Currier, Inc.
- Main IPC: H04B1/16
- IPC: H04B1/16 ; H04B1/10 ; H04B1/26 ; H04B1/12

Abstract:
A switching mixer that includes an input configured to receive a radio frequency (RF) signal, a set of inductors, and a set switches in a one-to-one relationship with the set of inductors. The set of switches are configured to alternate turning off in a quadrature sequence of a switching cycle. When a respective switch of the set of switches is turned off: the respective switch connects the input to a respective inductor of the set of inductors to convert the RF signal to a baseband current; and each remaining inductor of the set of inductors is configured to maintain current therein.
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