Invention Grant
- Patent Title: Receiver with reduced mixer-filter interaction distortion
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Application No.: US16016081Application Date: 2018-06-22
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Publication No.: US10581472B2Publication Date: 2020-03-03
- Inventor: Paul R. Ganci , Matthew R. Miller
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Vierra Magen Marcus LLP
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H03G3/30 ; H03H11/12 ; H03F3/19 ; H03F3/45 ; H03H11/28 ; H03D7/12

Abstract:
The disclosure relates to technology for a receiver having a receive signal path including a mixer, a differential fixed gain or variable gain amplifier, and a differential filter. The mixer is configured to receive an RF signal, receive an oscillator signal, and output a differential down converted signal at one of a baseband or intermediate frequency (IF). The amplifier is downstream of the mixer and configured to receive the differential down converted signal from the mixer, apply a gain thereto, and output an amplified differential signal. The filter is downstream of the amplifier and configured filter the amplified differential signal received from the amplifier, and output a filtered differential signal. By locating the differential filter downstream of the differential amplifier within the receive signal path, distortion caused by the mixer is mitigated compared to if the filter were located upstream of the filter.
Public/Granted literature
- US20190393912A1 RECEIVER WITH REDUCED MIXER-FILTER INTERACTION DISTORTION Public/Granted day:2019-12-26
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