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- W2890499803 abstract "A novel design methodology for the successful implementation of high efficiency class E frequency multipliers is presented in this work. An innovative class E configurationis proposed for a frequency tripler that provides an advantage over the conventional designs, by allowing a 50 %duty cycle drive with a realisable load for 100 %DC-to-RFefficiency operation.A novel quantitative analysis of class E networks is developed that aids in the rapid yet accurate assessment of circuit performance. The first-order analysis provides an intuitive evaluation of class E operation and harmonic content of the switch waveforms.The analysis is shown to be applicable to both class E amplifiers and multipliers, providing closed-form equations for an intelligent first design. The proposed class E tripler configuration is evaluated using this technique and is shown to be a practically viable solution for achieving high DC-to-RF efficiency.Techniques involved in the design and implementation of the novel frequency tripler are investigated, and three microstrip circuits are presented that provide high drain efficiency, high unwanted harmonic rejection and low DC power consumption. Innovative design of the input matching circuit that exploits the nonlinear input capacitance ofthe device, and the output matching circuit that simultaneously provides appropriate harmonic terminations and unwanted harmonic rejection, ensure a simultaneously high achievable conversion gain and DC-to-RF efficiency. Practical demonstration of the three novel circuits display the highest reported DC-to-RF efficiency and conversiongain for m~crowave frequency triplers to date. Trade-oITs between circ.uit complexity,size and simultaneously achievable high efficiency and high conversion gain are identified and elucidated with the three novel designs." @default.
- W2890499803 created "2018-09-27" @default.
- W2890499803 creator A5076675170 @default.
- W2890499803 date "2007-09-01" @default.
- W2890499803 modified "2023-09-27" @default.
- W2890499803 title "High Efficiency Class E Microwave Frequency Multipliers" @default.
- W2890499803 hasPublicationYear "2007" @default.
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