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In this paper, loss mechanisms of monolithic high frequency Class-E PAs are studied. The switching behavior is analyzed to understand the discrepancy between common design equations and optimal design values as frequency scales up. Analytical results are verified by spice simulations. In addition, a design recipe based on loss analysis and effective output duty cycle is proposed for mm-waves PAs to...
In this paper, high frequency limitations of injection locked power amplifiers (ILPAs) are studied. A new phase alignment technique is proposed to minimize the loss of both injecting and oscillating devices at tens of gigahertz. Analytical results are verified by spice simulations. The theory is carried to design an ILPA at 60 GHz. Comparison is performed with the Class-E PA, and the cross-coupled...
In this paper, loss mechanisms of monolithic high frequency Class E PAs are studied. The switching behavior is analyzed to understand the discrepancy between common design equations and optimal design values as frequency scales up. Analytical results are verified by spice simulations. In addition, a design recipe is proposed for mm-Waves PAs. The design approach is adopted to compare different technology...
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