Load Network Design Technique for Switched-Mode Tuned Class E Power Amplifiers
نویسنده
چکیده
Abstract − The switched-mode second-order Class E configuration with a generalized load network including the shunt capacitance, series bondwire inductance, finite DC feed inductance and series LC circuit is analytically defined with a set of the exact design equations. Based on these equations, the required voltage and current waveforms and circuit parameters are determined for both general case and particular circuits corresponding to Class E with shunt capacitance, even harmonic Class E and parallel-circuit Class E modes. The effect of the device output bondwire inductance on the optimum load network parameters is demonstrated. The operating power gain achieved with the parallel-circuit Class E power amplifier is evaluated and compared with the operating power gain of the conventional Class B power amplifier. A possibility of the load network implementation at microwaves also is considered. Two examples of high power LDMOSFET and low-voltage HBT power amplifiers, utilizing a transmission-line parallel-circuit Class E circuit configurations, are presented.
منابع مشابه
Andrei Grebennikov, Member, IEEE
− The results of exact time domain analysis of the switched-mode tuned Class E power amplifiers with a quarterwave transmission line are presented with analytical determination of the optimum load network parameters. Effects of the quarterwave transmission line and collector capacitance on the current and voltage waveforms are discussed and analyzed. The ideal collector voltage and current wave...
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