Title :
A Hilbert sampler/filter and complex bandpass SC filter for I/Q demodulation
Author :
Karvonen, Sami ; Riley, Tom ; Kostamovaara, Juha
Author_Institution :
University of Oulu, Finland
Abstract :
A new I/Q demodulator based on a combined Hilbert sampler/filter and complex bandpass switched-capacitor (SC) filter is presented. The test circuit subsamples a 45 MHz IF signal to a new, lower IF of 13 kHz. The circuit achieves image rejection of over 50 dB on a 24 kHz bandwidth.
Keywords :
Band pass filters; Capacitors; Circuit testing; Demodulation; Filtering; Finite impulse response filter; Frequency; Sampling methods; Switches; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2000. ESSCIRC '00. Proceedings of the 26rd European
Conference_Location :
Stockholm, Sweden
