Title :
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
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;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2015.2479835
