Broadband operation of saturated amplifier with high efficiency
Wireless and Microwave Technology Conference（2014）
摘要
A saturated operation of a power amplifier with the proper harmonic tuning can be highly efficient. The harmonics, mainly the second harmonic, are generated internally by the saturation operation. Matching tolerance for the harmonic tuning is very large and can be operated across a broadband with a high efficiency. Based on the saturated amplifier, we have realized a broadband amplifier using GaN device. Across the 1.75-2.17 GHz band, the output power, drain efficiency, and gain are between 51.0-52.3 dBm, 71.0-84.4%, and 8.22-11.6 dB, respectively.
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关键词
iii-v semiconductors,uhf power amplifiers,circuit tuning,gallium compounds,harmonic generation,impedance matching,wide band gap semiconductors,wideband amplifiers,gan,broadband operation,broadband power amplifier,drain efficiency,frequency 1.75 ghz to 2.17 ghz,gain 51.0 db to 52.3 db,harmonic tuning,impedance matching circuit tolerance,saturated amplifier,saturation operation,second harmonic generation,broadband,efficiency,power amplifier
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