Harmonic Rejection Mixer at ADC Input for Complex IF Dual Carrier Receiver Architecture
- Sundström, Lars
- Andersson, Martin
- Andersson, Mattias
- Andreani, Pietro
Publication date
January 2012
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
This paper presents a receiver architecture for intraband dual-carrier reception as specified for the upcoming releases of 3GPP WCDMA and LTE standards. It is based on a time-discrete harmonic rejection complex-IF mixer to limit the bandwidth requirements on the ADCs to that of a single carrier. The mixer has been designed and fabricated together with a 3rd order continuous-time (CT) delta-sigma ADC for proof-of-concept evaluation. Measurements show at least 68dB rejection at 2nd to 4th LO harmonic
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