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This paper presets a 8.5 W GaN inverse class-E power amplifier using an output matching network suitable for high power applications. The presented output matching network overcomes several problems in the original implementation. First a transmission line stub is used directly at the transistor drain to compensate for the drain source capacitance, second the lumped inductor in the original implementation...
In this work a 6 W GaN based class-F amplifier is presented. The presented amplifier uses an adaptive matching output network to achieve high efficiency over 8.5 dB output dynamic range. The output matching network is an L matching network with a tunable inductor and a tunable capacitor. The tunable inductor is based on a lambda/4 impedance inverter and a switchable capacitor bank. The tunable inductor...
This paper presents an UWB antenna diplexer chip fabricated using high quality passive and active Si-Cu (P7MI) technology. This antenna diplexer has three functions, the main function is filtering for two band groups, the second function is matching between two impedance levels and the third function is differential to single ended mode conversion. This chip together with multichip packaging module...
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