A Novel Method for Analysis and Design of Class-E Power Amplifier with Design of a Power Amplifier Stage with a Tight Transmission Mask

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Babamir, Mehrdad | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47418 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Sharif Bakhtiar, Mehrdad
Abstract:
A new analytic method for class E power amplifiers in the frequency domain is presented. Closed form and fairly simple equations in terms of the circuit components for the output power at the carrier frequency and its harmonics as well as the power efficiency with its sensitivity to the load resistance and other circuit components are derived. This provides the facility to directly calculate the circuit components for the desired operation. Using the proposed model, equations to satisfy maximum power efficiency are derived. Also, a design guide based on a novel scaling method to facilitate the design procedures for the given constraints and conditions are presented. In the next step, a power amplifier with high efficiency is designed. In addition to its high efficiency, it satisfies a tight transmission mask determined by RFID standard “EPCGlobal C1 G2”. To this end, a special structure is used to have high efficiency as well as low leakage in adjacent channels. Finally, we designed a special layout for this power amplifier that will be described in this document
Keywords:
Power Output ; Frequency Domain Analysis ; Radio Frequency Identification (RFID) ; Efficiency ; Radio Frequency Identification (RFID) ; Class E Power Amplifier

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