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1. (WO2018009827) DIGITAL COMPENSATION OF IQ COUPLING IN COMMUNICATION RECEIVERS

Pub. No.:    WO/2018/009827    International Application No.:    PCT/US2017/041140
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Sat Jul 08 01:59:59 CEST 2017
IPC: H04B 1/30
Applicants: MICROCHIP TECHNOLOGY INCORPORATED
Inventors: SHAFIEE, Hamid
POURKHAATOUN, Mohsen
GOWDA, Kiran
SHETTY, Siddharth
HEIDARI, Esmael
FARD, Ali
BAGHERI, Rahim
DJAFARI, Masoud
Title: DIGITAL COMPENSATION OF IQ COUPLING IN COMMUNICATION RECEIVERS
Abstract:
A receiver circuit includes a conversion circuit configured to down-convert a received radio-frequency signal to a baseband signal, an analog-to-digital converter configured to sample the baseband signal into a sampled signal, a Fast Fourier transform (FFT) circuit configured to perform an FFT on the sampled signal, and a digital compensation circuit configured to compensate for IQ distortion in a frequency domain.