A Broadband Highly Efficient Harmonic-Tuned Power Amplifier Exploiting Compact Matching Network

Author

Liang Ma ; Jianyi Zhou ; Weichen Huang

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

Volume

25

Issue

11

fYear

2015

Firstpage

718

Lastpage

720

Abstract

In this letter, a systematic method to design compact output matching network of power amplifier (PA) is proposed, which is based on the simplified real frequency technique. The produced network is mainly constructed with commensurate transmission lines, containing cascaded unit elements and open-shunt stubs, as well as a shorted-series stub for dc bias. A GaN PA is designed to verify the method. The measured results show that the PA achieves 68.07%-79.49% drain efficiency and 40.93 to 42.4 dBm output power from 1.7 to 3.1 GHz. Moreover, the fabricated PA has a small size of only 2015 mm ², due to the compact matching networks.

Keywords

III-V semiconductors; UHF power amplifiers; gallium compounds; microwave power amplifiers; wideband amplifiers; GaN; GaN PA; broadband highly efficient harmonic-tuned power amplifier; cascaded unit elements; commensurate transmission lines; compact output matching network; efficiency 68.07 percent to 79.49 percent; frequency 1.7 GHz to 3.1 GHz; open-shunt stubs; shorted-series stub; simplified real frequency technique; systematic method; Bandwidth; Broadband communication; Impedance; Power amplifiers; Wireless communication; Broadband; compact matching network; high-efficiency; power amplifier; simplified real frequency technique;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2015.2479835

Filename

7279204