Single-phase down-converter, single-phase frequency-reducing method and multi-mode wireless-communication receiver

A single-phase down-converter includes a mixer and a local oscillator (LO) signal generator. The mixer is arranged to generate a mixer output signal by mixing a radio frequency (RF) signal and an LO signal. The LO signal generator is coupled to the mixer, and arranged to generate the LO signal with...

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Bibliographic Details
Main Authors WANG PO-MIN, KE GUAN-HONG, LI CHIN-FU, HUANG POIUN
Format Patent
LanguageChinese
English
Published 13.03.2013
Subjects
BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:A single-phase down-converter includes a mixer and a local oscillator (LO) signal generator. The mixer is arranged to generate a mixer output signal by mixing a radio frequency (RF) signal and an LO signal. The LO signal generator is coupled to the mixer, and arranged to generate the LO signal with a frequency shifted from an RF carrier frequency by a specific intermediate frequency, wherein when image interference exists, the specific intermediate frequency makes the image interference translated to guard band(s) of channel(s).
Bibliography:Application Number: CN20121285237