论文信息 - A 1.5 to 37 GHz ultra-broadband MMIC Mouw's star mixer

A 1.5 to 37 GHz ultra-broadband MMIC Mouw's star mixer

A MMIC ultra-broadband star mixer using Mouw's hybrid junction is presented in this paper. The MMIC chip uses 0.15/spl mu/m HEMT process. The chip is measured in three mounting environments, namely, absorber backed, 15mil Al/sub 2/O/sub 3/ substrate plus absorber, and conductor backed and all of them show ultra-broadband performances. The measured results show that the bandwidth is from 1.5 to 37GHz except a resonant dip near 23 GHz occurs in conductor backed case. The IF 3dB bandwidth is from DC to 2.5GHz. The chip can be used as either up- or down-converter. Because the spiral layout of the Mouw's hybrid junction shrinks the area significantly, no off chip baluns are required. The chip size is 2mm by 2mm.

Chi-Yang Chang | Dow-Chih Niu | Ching-Ku Liao

[1] Youngwoo Kwon,et al. A GaAs-based 3-40 GHz distributed mixer with cascode FET cells , 2004, 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers.

[2] P. Chao,et al. A 1-17-GHz InGaP-GaAs HBT MMIC analog multiplier and mixer with broad-band input-matching networks , 2002 .

[3] Ching-Wen Tang,et al. Ultra-broad-band doubly balanced star mixers using planar Mouw's hybrid junction , 2001 .

[4] Huei Wang,et al. A 0 . 3 – 25-GHz Ultra-Wideband Mixer Using Commercial 0 . 18-m CMOS Technology , 2004 .

[5] D. Hollmann,et al. A monolithic broadband 10-50 GHz distributed HEMT mixer including active LO-RF combiner , 1994, Proceedings of 1994 IEEE GaAs IC Symposium.

[6] Huei Wang,et al. A 0.3-25-GHz ultra-wideband mixer using commercial 0.18-/spl mu/m CMOS technology , 2004 .

[7] Kuo-Liang Deng,et al. A 3-33 GHz PHEMT MMIC distributed drain mixer , 2002, 2002 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.02CH37280).