Alexis Carbonnière, Pierre Medrel, Jean-Michel Nébus, Ludovic Bacqué, Maxime Schutz
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引用次数: 0
Abstract
This article reports on a novel configuration of a balanced power amplifier (BPA) architecture that enables adaptive voltage standing wave ratio (VSWR) protection. The BPA topology is modified at its input using a wideband power divider and two step-attenuators to control the power level distribution of RF signals driving the inputs of the 0°–90° hybrid coupler. In doing so, a certain degree of imbalance is advantageously practised to ensure a prescribed VSWR at the transistor's drain ports. The strategy followed to control the step-attenuator values as a function of the targeted VSWR is detailed. A conventional closed-loop VSWR detection and correction has been implemented in a demonstrator including commercial off-the-shelf (COTS) components at S-band to validate the proposed concept.
期刊介绍：
Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews.
Scope
As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below.
Antennas and Propagation
Biomedical and Bioinspired Technologies, Signal Processing and Applications
Control Engineering
Electromagnetism: Theory, Materials and Devices
Electronic Circuits and Systems
Image, Video and Vision Processing and Applications
Information, Computing and Communications
Instrumentation and Measurement
Microwave Technology
Optical Communications
Photonics and Opto-Electronics
Power Electronics, Energy and Sustainability
Radar, Sonar and Navigation
Semiconductor Technology
Signal Processing
MIMO
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