CMOS stacked folded differential structure power amplifier for high power RF application

2010 ◽  
Vol 20 (6) ◽  
pp. 611-618 ◽  
Author(s):  
Yohann Luque ◽  
Eric Kerhervé ◽  
Nathalie Deltimple ◽  
Laurent Leyssenne ◽  
Didier Belot
Keyword(s):  
Power Amplifier ◽  
High Power ◽  
Differential Structure

scholarly journals Broadband Linear High-Power Amplifier Based on the Parallel Amplification Architecture for Electromagnetic Ultrasonic Guided Wave

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 2924
Author(s):  
Jinjie Zhou ◽  
Yang Zheng
Keyword(s):  
Output Power ◽  
Power Amplifier ◽  
High Power ◽  
Guided Wave ◽  
High Output Power ◽  
Electromagnetic Acoustic Transducer ◽  
Differential Structure ◽  
Ultrasonic Guided Wave ◽  
Linear Power Amplifier ◽  
High Output

The linear power amplifier with high-output power in the broadband frequency is the critical component required by exciting the electromagnetic acoustic transducer (EMAT) to generate ultrasonic guided wave (UGW). The methods to realize the output of a high-power signal in the linear amplification mode and to expand the bandwidth at high-output power are seldom reported. To solve these problems, a power amplifier with differential structure is developed by using the parallel amplification architecture and the broadband feedback circuits. The proposed power amplifier uses a differential structure to suppress the even harmonic waves and remove the disruptions. Each branch of the differential structure consists of five linear power amplifier modules with output terminals connected in parallel to increase the output power. Also, the negative voltage feedback is used to extend the bandwidth of the power amplifier. The experimental results show that the −3 dB bandwidth of the amplifier is from 40 kHz to 2.5 MHz, and the transient output power is greater than 1 kW. The power amplifier can drive the EMATs to generate ultrasonic guided waves. Because of the high-output power and good linearity, the proposed power amplifier has excellent potential for EMAT UGW applications.

An Octave Bandwidth, High PAE, Linear, Class J GaN High Power Amplifier

2012 ◽  
Author(s):  
Kris Skowronski ◽  
Steve Nelson ◽  
Rajesh Mongia ◽  
Howard Sheehan ◽  
Sid Anderson
Keyword(s):  
Power Amplifier ◽  
High Power ◽  
High Power Amplifier

A High-Power Low-Distortion GaAs HBT Power Amplifier for Mobile Terminals Used in Broadband Wireless Applications

2007 ◽  
Vol 42 (10) ◽  
pp. 2123-2129 ◽  
Author(s):  
Tohru Oka ◽  
Masatomo Hasegawa ◽  
Michitoshi Hirata ◽  
Yoshihisa Amano ◽  
Yoshiteru Ishimaru ◽  
...  
Keyword(s):  
Power Amplifier ◽  
High Power ◽  
Mobile Terminals ◽  
Broadband Wireless ◽  
Wireless Applications ◽  
Low Distortion

High-Power Asymmetrical Three-Way GaN Doherty Power Amplifier at C-Band Frequencies

2018 ◽  
Author(s):  
Edon Derguti ◽  
Erdin Ture ◽  
Sebastian Krause ◽  
Dirk Schwantuschke ◽  
Rudiger Quay ◽  
...  
Keyword(s):  
Power Amplifier ◽  
High Power ◽  
Doherty Power Amplifier
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