西安电子科技大学学报（自然科学版）2018，Vol.45Issue(1)：88-92,155,6.DOI:10.3969/j.issn.1001-2400.2018.01.016
2.5～14.5 GHz分布式功率放大器设计
Design of a 2.5~14.5 GHz distributed power amplifier
摘要
Abstract
The operation principle of distributed amplifiers and the impedance characteristic of artificial transmission lines (ATLs) are analyzed,and a distributed power amplifier consisting of three gain cells is designed and fabricated by 0.18 μm complementary metal oxide semiconductor (CMOS) technology.The peaking inductor is used to enhance the gain and the reverse isolation of the amplifier in high frequency.The termination loads of ATLs are increased and the values of on-chip inductors are optimized to provide good impedance matching,while improving the output power and efficiency.Measured results show that the amplifier has a 3 dB bandwidth of 12 GHz (2.5~ 14.5 GHz) and provides an average forward gain of 9.8 dB from 3 to 14 GHz with a gain flatness of ± 1 dB.In the desired band,the output power at 1 dB gain compression point (P1 dB) is from 4.3 to 10.3 dBm while the power added efficiency (PAE) is from 1.7% to 6.9%.关键词
分布式放大器/人工传输线/阻抗匹配/功率附加效率/峰化电感Key words
distributed amplifier/artificial transmission line/impedance matching/power added efficiency/peaking inductor分类
信息技术与安全科学引用本文复制引用
张瑛,马凯学,张翼,张长春,周洪敏..2.5～14.5 GHz分布式功率放大器设计[J].西安电子科技大学学报（自然科学版）,2018,45(1):88-92,155,6.基金项目
国家自然科学基金资助项目(61106021) （61106021）
中国博士后科学基金资助项目(2015M582541) （2015M582541）
江苏省高校自然科学基金资助项目(15KJB510020) （15KJB510020）
南京邮电大学科研基金资助项目(NY215140,NY215167) （NY215140,NY215167）
