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

Author

Itoh, K. ; Katsura, T. ; Nagano, H. ; Yamaguchi, T. ; Hamade, Y. ; Shimozawa, M. ; Suematsu, N. ; Hayashi, R. ; Palmer, W. ; Goldfarb, Michael

Author_Institution

Div. of Mobile Commun. Bus., Mitsubishi Electr. Corp., Hyogo, Japan

Volume

3

fYear

2000

fDate

11-16 June 2000

Firstpage

1957

Abstract

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.

Keywords

Code division multiple access; Mobile radio; Radio receivers; Sensitivity; UHF circuits; 2 GHz; ABB-IC; RF architecture; RF block; W-CDMA mobile terminal; analog baseband IC; anti-parallel diode pair; demodulator; direct conversion receiver; even harmonic type; even order mixing products reduction; high instantaneous dynamic range; high sensitivity; low current consumption; passive mixer approach; sensitivity characteristics; Analog integrated circuits; Baseband; Degradation; Demodulation; Diodes; Multiaccess communication; Noise reduction; Power harmonic filters; Radio frequency; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest. 2000 IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-7803-5687-X

Type

conf

DOI

10.1109/MWSYM.2000.862367

Filename

862367