Title: New receiver architecture for wireless communication system
Application Number: 200480035772 Application Date: 2004.11.15
Publication Number: 1890888 Publication Date: 2007.01.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B1/24;H03M3/02
Applicant(s) Name: Koninkl Philips Electronics NV Address:
Inventor(s) Name: Qian Xuecheng
Attorney & Agent: tan mingyan
Abstract:
    A bandpass-sampling receiver is proposed, comprising: the first Sigma-delta ADC, for converting the received RF signal into the first channel of digital signal under the control of the first sampling clock signal; the second Sigma-delta ADC, for converting the received RF signal into the second channel of digital signal under the control of the second sampling clock signal; a signal separating unit, for separating the in -phase signal and the quadrature signal in the first channel of digital signal and the second channel of digital signal. Low-resolution Sigma-delta ADC is adopted to sample and quantize the analog RF signal, thus the bandpass sampling receiver can save cost of ADCs.
Time: 12