A millimeter-wave 6-bit digital attenuator with high accuracy and low insertion loss

IEICE Electronics Express

Jing Zhao¹  Bo Zhang¹ 

[1] ASIC Design Center, Xi’an University of Posts and Telecommunications

关键词: attenuator;    millimeter-wave;    accuracy;    insertion loss;    PHEMT;   

DOI  :  10.1587/elex.13.20160357

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(10)A millimetre-wave 6-bit attenuator with high accuracy and low insertion loss by 0.15 µm GaAs PHEMT process is presented. A proposed structure is adopted to enhance the attenuation accuracy. A cascade structure is proposed to enhance isolation and compensate the insertion loss. The measurement results show that it has 0.5 dB resolution and 31.5 dB attenuation rage while the return loss is better than �?10 dB for all states. The attenuation accuracy is better than 0.5 dB while the RMS attenuation error is less than 0.21 dB. The insertion loss is less than 5.7 dB while the insertion phase shift is less than �?6.0°.

【 授权许可】

Unknown