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2 GHz band even harmonic type direct conversion receiver with ABB-IC for W-CDMA mobile terminal

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10 Author(s)
Itoh, K. ; Div. of Mobile Commun. Bus., Mitsubishi Electr. Corp., Hyogo, Japan ; Katsura, T. ; Nagano, H. ; Yamaguchi, T.
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A 2 GHz band even harmonic type direct conversion receiver (EH-DCR) is proposed for the W-CDMA mobile terminal. Because of the well-matched anti-parallel diode pair used in the proposed EH-DCR, the receiver can reduce even order mixing products that degrade sensitivity characteristics. Also the proposed EH-DCR can achieve low current consumption with a passive mixer approach. In this paper, the overall receiver with an RF block, an analog baseband IC (ABB-IC) and a demodulator is demonstrated to indicate the effectiveness on the proposed RF architecture. The described evaluation results indicate high instantaneous dynamic range with high sensitivity.

Published in:

Microwave Symposium Digest. 2000 IEEE MTT-S International  (Volume:3 )

Date of Conference:

11-16 June 2000