Low distortion CMOS class-D amplifier with double-band hysteresis

A W-band Simultaneously Matched Power and Noise Low Noise Amplifier Using CMOS 0.13µm

A complete procedure for the design of W-band low noise amplifier in MMIC technology is presented. The design is based on a simultaneously power and noise matched technique. For implementing the method, scalable bilateral transistor model parameters should be first extracted. The model is also used for transmission line utilized in the amplifier circuit. In the presented method, input/output ma...

A CMOS Multi-band Low Noise Amplifier for WiMAX Applications

Systematic Generation of Wide Band Cmos Low-noise Amplifier Topologies

Alternative wide band Low-Noise Amplifier (LNA) topologies to be used for highly integrated CMOS transceivers are investigated. A methodology that systematically generates all the LNA topology options with 2 Voltage Controlled Current Sources (VCCS) is presented. Next to wellknown circuits such as the common gate stage and shunt series feedback common source stage, 2 alternative LNA topology ar...

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...

A Micropower Low-Distortion Digital Pulsewidth Modulator for a Digital Class D Amplifier

We describe the design of a micropower digital pulsewidth modulator (PWM) for a hearing instrument Class D amplifier. The PWM embodies a novel delta-compensation ( C) sampling process and a novel pulse generator. The C process is sampled at the same low rate as reported algorithmic sampling processes and it features a similar low total harmonic distortion (THD). Its arithmetic computation is ho...