A Novel Compensation Circuit of High-Efficiency Concurrent Dual-Band Class-E Power Amplifiers

作者：Liu, Chang^*; Cheng, Qian-Fu

来源：IEEE Microwave and Wireless Components Letters, 2018, 28(8): 720-722.

DOI：10.1109/LMWC.2018.2842686

• Class-E power amplifier (PA)
• dual band (DB)
• high efficiency
• maximum operating frequency (f(max))
• PAs

A novel methodology for designing a compensation circuit of high-efficiency concurrent dual-band (DB) class-E power amplifiers (PAs) is presented in this letter. The DB harmonic compensation network is first adopted to compensate the excess output capacitances and extend the maximum operating frequency (f(max)) of class-E PA at two distinct communication bands. The DB class-E PA, whose f(max) increases from 0.54 to 1.72 and 2.14 GHz, shows high-performance results with the maximum output power of 40.5 and 40.9 dBm and peak power-added efficiency of 74.9% and 75.9% at the two frequency bands, respectively. To the best knowledge of the authors, this is the first compensation circuit of concurrent DB class-E PA reported in the literature, which extremely improves the performance of DB class-E PAs.

• 出版日期2018-8
• 单位天津大学