Patent ID: 6876844
Filing Date: 2005-04-05
Classification: H04B

Abstract:
1. A radio frequency (RF) demodulation circuit comprising: a radio frequency (RF) mixer having a first input port capable of receiving an incoming RF signal having a frequency of RF and a second input port capable of receiving a first local oscillator (LO) signal having a frequency of LO, wherein said RF mixer generates a first intermediate frequency (IF) signal having a frequency of IF; a frequency divider circuit capable of receiving said first LO signal having said frequency of LO and generating therefrom a second local oscillator (LO) signal having a frequency of LO/N and synchronized with said first LO signal; and an intermediate frequency (IF) mixer having a first input port capable of receiving said first IF signal and a second input port capable of receiving said second LO signal having said frequency of LO/N, and wherein said IF mixer generates a baseband output signal.