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...