Load impedance perturbation formulas for class-E power amplifiers
نویسندگان
چکیده
منابع مشابه
Transmission-Line Load-Network Topology for Class-E Power Amplifiers
Class-E amplifiers are a type of switching amplifier offering very high efficiency approaching 100% . In this paper, a topology and design methodology, which could be used for a transmission-line implementation of a class-E power amplifier, is presented. A simple transmission-line class-E load network is proposed that offers combined transformation of the load resistance down to a suitable leve...
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A novel load pull methodology to characterize the performance of class-E outphasing power amplifiers is presented. The traditional analysis of the outphasing topology cannot be applied when classE amplifiers are used because these amplifiers do not behave as an ideal current or voltage source. Unlike most other amplifier classes, class-E amplifiers require a phase modulated input signal with co...
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This article is based on “Class-E High-Efficiency Power Amplifiers, from HF to Microwave,” Proceedings of the IEEE International Microwave Symposium, June 1998, Baltimore; and “ClassE Switching-Mode High-Efficiency Tuned RF Microwave Power Amplifier: Improved Design Equations,” Proceedings of the IEEE International Microwave Symposium, June 2000, Boston; both by Nat Sokal, © IEEE 1998, 2000.—Ed.
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Nowadays the main driving parameters for the radio transmitter research are: energy efficiency, frequency re-configurability and integration. Pulsed transmitter architectures have attracted large interest in the recent years due to their potential to meet these demands. In pulsed transmitters, a highly efficient switch mode power amplifier (SMPA) is used in conjunction with a pulse modulator to...
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In literature, it is widely accepted that the design of Class-E Power Amplifier (PA) with finite dc feed inductance requires a long iterative solution procedure. To avoid such iterative solution methods, analytical design equations should be known. The problem associated with the finite dc feed inductance Class-E PA is usually ascribed to the fact that the circuit element values are transcenden...
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ژورنال
عنوان ژورنال: IEICE Communications Express
سال: 2020
ISSN: 2187-0136
DOI: 10.1587/comex.2020xbl0085