A design technique to improve harmonic suppression in high efficiency wideband Class E RF power amplifier

High Efficiency Class-F Power Amplifier Design

Due to the high increase in and demand for a wide assortment of applications that require low-cost, high-efficiency, and compact systems, RF power amplifiers are considered the most critical design blocks and power consuming components in wireless communication, TV transmission, radar, and RF heating. Therefore, much research has been carried out in order to improve the performance of power amp...

Cmos High Efficiency Rf Power Amplifier

The design of an integrated CMOS Power Amplifier (PA) for a Jet Propulsion Laboratory (JPL) Synthetic Aperture Radar (SAR) mission is studied. Although there are a number of PA class definitions and published circuits, designing a high efficiency RF PA is still a challenging job. In this thesis, the goal is full integration in Silicon-on-Sapphire (SOS) using on-chip spiral inductors/transformer...

Design of High Efficiency Broadband Adjusted Class AB Power Amplifier

Broadband RF Power Amplifier Design Methodology Using Sequential Harmonic Characterization

Radio Frequency Power Amplifier (RFPA) amplifies the communication signals to the required power level for transmission. It is the most power consuming stage in a transceiver chain; consequently, any improvement in terms of dissipated power and efficiency of the power amplifier affects the overall power budget of the transmitter. Also, efficient performance of the RF power amplifier over extend...

A Class E Power Amplifier with Low Voltage Stress

A new output structure for class E power amplifier (PA) is proposed in this paper. A series LC resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. This resonator causes low impedance at the second harmonic. The output circuit is designed to shape the switch voltage of the class E amplifier and lower the voltage stress of the transistor. T...