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Harmonic rejection mixer at ADC input for complex IF dual carrier receiver architecture

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4 Author(s)
L. Sundström ; Ericsson Research, Ericsson AB, Lund, 221 83, Sweden ; M. Anderson ; M. Andersson ; Pietro Andreani

This paper presents a receiver architecture for intra-band dual-carrier reception as specified for the upcoming releases of 3GPP HSPA 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 ΔΣ-ADC for proof-of-concept evaluation. Measurements show at least 68dB rejection at 2nd to 4th LO harmonic.

Published in:

2012 IEEE Radio Frequency Integrated Circuits Symposium

Date of Conference:

17-19 June 2012