Due to the exponentially increasing connectivity and bandwidth demand from the Internet, the most advanced examples of medium-scale fast reconfigurable photonic integrated switch circuits are offered by research carried out for dataand computer-communication applications, where network flexibility at a high speed and high connectivity are provided to suit network demand. Recently we have protot...

This paper presents a spatial-temporal single harmonic switching (STHS) transmitter array architecture with enhanced efficiency in the power back-off (PBO) region. STHS is an electromagnetic and circuit co-designed jointly optimized that realizes beamforming generation at same time. The temporal dimension originally added to achieve enhancement, which can be combined conventional enhancement me...

This paper presents a 30dBm (1W) class-E power amplifier projected in a standard 0.18-μm CMOS technology. The power amplifier (PA) consists in two differentials stages. The main stage employs a cascode class-E RF power amplifier with a self-biasing circuit. The driver stage uses the technique of Injection-Locking to substantially reduce the input power signal, maintaining a high gain. At 2.45 G...

A brief analysis of methods and features measuring thermal parameters integrated microwave power amplifiers on bipolar transistors (BT) is presented. The hardware software complex implementing the method amplifier according to OST 11 0944-96 original modulation described. In both methods, temperature active region BT crystals determined by a change in certain temperature-sensitive parameter (TS...

This paper presents the design of a Class A/B power amplifier (PA) for 2.4-2.4835GHz Wireless Sensor Network (WSN) system in 0.18μm CMOS technology. The PA adopts the single-stage differential structure and the output power of the PA can be controlled by switching the sizes of transistors. Seven different level of output power can be obtained through a three-bit control code. The tested results...

Abstract: A low-power and low-noise dynamic instrumentation amplifier (IA) for biopotential acquisition is presented. A dynamic IA that can reduce power consumption with a timely piecewise power-gating method, and noise level with an alternating input and chopper stabilization technique is fabricated with a 0.13-μm CMOS. Using the reconfigurable architecture of the IA, various combinations of t...

Analysis and simulation are presented of the mismatched load condition for a balanced class-E power amplifier, which is based on 90° hybrids at its input and output. The performances of the 200-Watt balanced class-E amplifier, such as the output power and efficiency, were analyzed and compared to the conventional single-ended class-E power amplifier for the 1:3 VSWR mismatch condition. The simu...

In this contribution, research activities and trends in the field of RF and microwave power amplifiers design are discussed. Design strategies for high efficiency and linearity amplifiers are focused and the results attained in three years of TARGET NoE activities are presented, showing interesting and state-of-the-art power amplifier design, employing GaAs or GaN technologies. Introduction The...