Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

A load modulated balanced amplifier with linear gain response and wide high-efficiency output power back-off region

Chaudry, Kauser, Quaglia, Roberto and Cripps, Steve 2020. A load modulated balanced amplifier with linear gain response and wide high-efficiency output power back-off region. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), Cardiff, Wales, 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE, pp. 1-3. 10.1109/INMMiC46721.2020.9160205

Full text not available from this repository.

Abstract

This paper presents a new mode of operation for load modulated balanced amplifiers that overcomes two limitations of the original technique by providing a linear gain response and a wide power back-off region with high efficiency. Compared to Doherty power amplifiers, this technique still maintains some of the bandwidth advantages and the inherent design simplicity typically associated with the load modulated balanced amplifier. A prototype has been realized and characterized with single-tone measurements. At 1850MHz and 2150 MHz, it shows a maximum output power in excess of 250W, and a power added efficiency greater than 45%, at 9 dB back-off, with a gain variation vs. power of less than 2 dB.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: IEEE
ISBN: 9781728126456
Last Modified: 14 Oct 2020 15:01
URI: http://orca.cf.ac.uk/id/eprint/132468

Actions (repository staff only)

Edit Item Edit Item