Invention Grant
- Patent Title: Mixer with feedback
- Patent Title (中): 搅拌机带反馈
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Application No.: US10746330Application Date: 2003-12-23
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Publication No.: US07672659B2Publication Date: 2010-03-02
- Inventor: Sven Mattisson
- Applicant: Sven Mattisson
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Agent Michael G. Cameron
- Main IPC: H04B1/26
- IPC: H04B1/26 ; H04B1/28

Abstract:
A method and system for increasing the compression point of a receiver by deriving a feedback signal from mixer output signals. The feedback signal prevents the receiver from going into compression on strong out-of-band or blocking signals, while enhancing the receiver gain at the desired frequency. The desired frequency coincides with the local oscillator (LO) signal and is therefore particularly applicable for, but not limited to, homodyne receivers where selectivity can be made quite narrowband. Since the selectivity is coupled to the LO, a tunable receiver may be achieved that enables selectivity over a wide range of input frequencies.
Public/Granted literature
- US20040176064A1 Mixer with feedback Public/Granted day:2004-09-09
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