Practical wireless power systems need to address the convenience factor of such systems. Standards such as the A4WP Class 3 have defined a broad coil impedance range that address the convenience factor and can be used as a starting point to compare the performance of the amplifiers. In this installment of WiGaN both the ZVS Class-D and Class-E amplifiers will be tested at 6.78 MHz to the A4WP Class 3 standard.

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雖然氮化鎵場效應電晶體被設計及優化為一種開關功率器件，但該電晶體也具備良好的射頻特性。 本章是關於氮化鎵場效應電晶體在200 MHz至2.5 GHz頻率範圍的射頻特性的第1部分。

作者：宜普公司應用工程行政總監Michael de Rooij博士、產品應用副總裁Johan Strydom博士及Peak Gain Wireless總裁Matthew Meiller

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