Low noise image reject mixer and method therefor

Details Low noise image reject mixer and method therefor Low noise image reject mixer and method therefor

2004-09-10

2008-11-25

Trinh, Sonny (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S285000, C455S326000

Reexamination Certificate

active

07457605

ABSTRACT:
A receiver (200) includes a transconductance mixer (310), a polyphase filter (320), and a transimpedance amplifier (330). The transconductance mixer (310) mixes a radio frequency (RF) voltage signal into a current signal having a plurality of phases using a local oscillator signal. The polyphase filter (320) filters the current signal to provide a filtered current signal. The transimpedance amplifier (330) converts the filtered current signal into an output voltage signal.

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