A NONUNIFORM DISTRIBUTED POWER AMPLIFIER IN 0.18-MM CMOS TECHNOLOGY

作者：Zhang, Ying; Ma, Kaixue; Zhang, Changchun; Zhang, Yi; Guo, Yufeng

来源：Microwave and Optical Technology Letters, 2017, 59(6): 1416-1420.

DOI：10.1002/mop.30551

• distributed amplifier
• artificial transmission line
• power added efficiency
• power amplifier

A nonuniform distributed power amplifier (DPA) is designed and implemented in a 0.18 mu m CMOS technology. To achieve high output power and efficiency in the wide frequency band, the impedance matching of T-type networks is analyzed and the tapered on-chip inductors of the output artificial transmission lines are designed. Nonuniform gain cells together with the tapered on-chip inductors are used to improve the output power while maintaining the good input and output impedance matchings. The chip size of the DPA is only 1.16 x 0.57 mm(2) including testing pads. The proposed DPA achieves 8.7 dB average associated gain from 1 to 19 GHz. The output power at 1-dB output compression point (OP1dB) is more than 7.6 dBm and the best power-added efficiency (PAE) is 7.4% in the frequency band of 1-18 GHz.

• 出版日期2017-6
• 单位电子科技大学; 南京邮电大学