Review of Efficiency CMOS Class AB Power Amplifier Topology in Gigahertz Frequencies

Design of High Efficiency Broadband Adjusted Class AB Power Amplifier

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...

A Cmos Class-ab Transconductance Amplifier for Switched-capacitor Applications

A novel CMOS operational transconductance amplifier (OTA) is presented, using a fully differential singlestage core OTA as input stage and a differential to single current converter as output stage, each biased at a separate current level. A large gain-bandwidth (GBW) product (2.7 MHz) and a high slew-rate (5 V//.LS) can be obtained by applying a large bias current to the core OTA. Due to the c...

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...

A Novel High Frequency, High-Efficiency, Differential Class-E Power Amplifier in 0.18μm CMOS

This paper presents the design of a high efficiency, low THD, 5.7GHz fully differential power amplifier for wireless communications in a standard 0.18μm CMOS technology. The power amplifier employs a fully differential class-E topology to achieve high power efficiency by exploiting its soft-switching property. In order to achieve high operating frequency, an injectionlocked oscillator is utiliz...