Design of High-Efficiency Multioctave Power Amplifier Based on a New Load Design Space
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS(2024)
摘要
In this letter, a new load design space is presented based on extended series of continuous inverse modes (ESCIMs) for designing a high-efficiency power amplifier (PA) with multioctave. The proposed load design space is acquired by adding a phase shift parameter into the current waveform formula of ESCIMs to generate a wider complex fundamental and second harmonic admittance spaces, further expanding the operating bandwidth. As a proof of concept, a multioctave PA is designed by using a gallium nitride (GaN) device. The measured results indicate that a drain efficiency (DE) of 60.3%-73.5%, an output power of 39.1-42 dBm, and a gain of 9.1-12 dB can be achieved over 0.8-3.6 GHz with a relative bandwidth of 127.3%.
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关键词
Power amplifiers,Bandwidth,Harmonic analysis,Wireless communication,Broadband amplifiers,Voltage,Power measurement,High-efficiency,load design space,multioctave,phase shift parameter,power amplifier (PA)
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