中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

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电子与封装 ›› 2018, Vol. 18 ›› Issue (10): 26 -28. doi: 10.16257/j.cnki.1681-1070.2018.0111

• 电路设计 • 上一篇    下一篇

K波段高功率放大器MMIC设计

陆雨茜,陈华康,高 博,龚 敏   

  1. 四川大学物理科学与技术学院,成都 610065
  • 收稿日期:2018-06-07 出版日期:2018-10-20 发布日期:2018-10-20
  • 作者简介:陆雨茜(1994—),女,重庆人,就读于四川大学微电子学与固体电子学专业,硕士研究生,主要研究方向为射频微波。

Design of K-Band Monolithic Power Amplifer

LU Yuxi, CHEN Huakang, GAO Bo, GONG Min   

  1. College of Physical Science and Technology, Sichuan University, Chengdu 610065,China
  • Received:2018-06-07 Online:2018-10-20 Published:2018-10-20

摘要: 基于GaAs pHEMT在微波领域的卓越性能,设计并实现了一款K波段GaAs功率放大器电路。根据阻抗匹配电路、三级级联放大结构来实现输出功率为2 W的K波段GaAs功率放大器。采用ADS软件对电路原理图进行了电学参数优化、版图绘制和电磁场仿真。采用0.25 μm栅长GaAs pHEMT工艺完成电路的设计,放大器输出输入端口均匹配到50 Ω。ADS仿真表明,功率放大器工作在21~24.5 GHz时,该放大器的输出功率大于33 dBm,功率附加效率大于25%,功率增益大于19 dB,电路尺寸为2.5 mm×3.2 mm。

关键词: 砷化镓, K波段, 单片微波集成电路, 功率放大器, 高功率

Abstract: Based on the excellent performance of GaAs pHEMT in microwave field, a K-band GaAs power amplifier circuit is designed and implemented. Impedance matching structures, three stages cascade structure are applied to achieve 2 W high power amplifier. According to the circuit theory and the amplifier performance indicators, the circuit schematic is designed with ADS software, and the electrical parameters optimization, layout drawing and electromagnetic simulation are carried out. The design of the amplifier was accomplished with GaAs pHEMT 0.25 μm gate length process, the amplifier was designed to fully match with 50 Ω. The ADS simulation shows that the output power of the amplifier is more than 33dBm, the power added efficiency is more than30%, and the power gain is more than 19 dB at the frequency 21 GHz to 24.5 GHz. The circuit size is 2.5 mm×3.2 mm.

Key words: GaAs, K-band, monolithic microwave integrated circuit (MMIC), power-amplifier, high power

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