IEEE Microwave Magazine

Issue 5 • July-Aug. 2018

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  • [Front cover]

    Publication Year: 2018, Page(s): C1
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  • Table of contents

    Publication Year: 2018, Page(s):3 - 4
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  • Staff List

    Publication Year: 2018, Page(s):3 - 4
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  • We Hear You [From the Editor's Desk]

    Publication Year: 2018, Page(s):6 - 8
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  • The Measurement of Research Quality [President's Column]

    Publication Year: 2018, Page(s):10 - 11
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  • The Annual Quiz [Microwave Surfing]

    Publication Year: 2018, Page(s):12 - 107
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  • Nathan Sokal and the Class-E Amplifier [From the Guest Editor's Desk]

    Publication Year: 2018, Page(s):14 - 15
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  • Recollections of Nathan Sokal: The Man, His Work, and the Class-E Amplifier

    Publication Year: 2018, Page(s):16 - 21
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  • The Sokal Family Recalls...

    Publication Year: 2018, Page(s): 21
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  • The Origin and Development of the High Efficiency Class-E RF Power Amplifier: A 2011 Address Accepting the Honorary Doctorate

    Publication Year: 2018, Page(s):22 - 25
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  • A History of Switching-Mode Class-E Techniques: The Development of Switching-Mode Class-E Techniques for High-Efficiency Power Amplification

    Publication Year: 2018, Page(s):26 - 41
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7913 KB) | HTML iconHTML

    Improving the efficiency of vacuum-tube amplifiers by properly approximating the anode voltage and current waveforms was discussed and first demonstrated in the late 1910s. Researchers found that, if either the tube plate current or voltage is zero when the other is nonzero, then the loss must be zero and the efficiency equal to 100%. The required rectangular waveforms could be achieved by inserti... View full abstract»

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  • Class-E Amplifiers and Applications at MF, HF, and VHF: Examples and Applications

    Publication Year: 2018, Page(s):42 - 53
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6402 KB) | HTML iconHTML

    The class-E amplifier [1], [2], is a member of the switch-mode amplifier family. Switch-mode amplifiers are characterized by their use of transistors, instead of current sources, as switches [3]. View full abstract»

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  • Microwave Class-E Power Amplifiers: A Brief Review of Essential Concepts in High-Frequency Class-E PAs and Related Circuits

    Publication Year: 2018, Page(s):54 - 66
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6305 KB) | HTML iconHTML

    Since Nathan Sokal's invention of the class-E power amplifier (PA), the vast majority of class-E results have been reported at kilohertz and millihertz frequencies, but the concept is increasingly applied in the ultrahigh-frequency (UHF) [1]-[13], microwave [14]-[20], and even millimeter-wave range [21]. The goal of this article is to briefly review some interesting concepts concerning high-freque... View full abstract»

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  • Class-E Rectifiers and Power Converters: The Operation of the Class-E Topology as a Power Amplifier and a Rectifier with Very High Conversion Efficiencies

    Publication Year: 2018, Page(s):67 - 78
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6189 KB) | HTML iconHTML

    In the late 1970s, interest in reducing the value and size of reactive components motivated power supply specialists to operate dc-to-dc converters at hundreds of kilohertz or even megahertz frequencies. Passive energy storage (mainly magnetics) is the dominant factor in the size of power electronics and also limits its cost, reliability, and dynamic response. With the goals of miniaturization and... View full abstract»

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  • Transformation Optics: Large Multiphysics Simulation of Nonlinear Optomechanical Coupling in Microstructured Resonant Cavities

    Publication Year: 2018, Page(s):79 - 84
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2318 KB) | HTML iconHTML

    The interfacing between optical cavities and mechanical systems has given rise to the rapid development of cavity optomechanics, which aims to confine light into small volumes by means of high-Q resonant recirculation [1], [2]. The purpose of an optomechanical system is to investigate the interaction of light with a mechanical oscillator. Its highly interdisciplinary nature leads to several potent... View full abstract»

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  • A Guide to Academic Funding [Book/Software Reviews]

    Publication Year: 2018, Page(s):86 - 87
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  • Frequency-Selective and Time-Selective Fading [Book/Software Reviews]

    Publication Year: 2018, Page(s):87 - 103
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  • MTT-S 2017 Webinar Series-Another Successful Year of Collaborative Learning [Education News]

    Publication Year: 2018, Page(s):88 - 101
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  • LAMC

    Publication Year: 2018, Page(s): 89
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  • RWW 2019

    Publication Year: 2018, Page(s): 91
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  • TWIoS 2019

    Publication Year: 2018, Page(s): 93
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  • PAWR 2019

    Publication Year: 2018, Page(s): 95
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  • SiRF 2019

    Publication Year: 2018, Page(s): 97
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  • WiSNeT 2019

    Publication Year: 2018, Page(s): 99
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  • MTT-S Regional Coordinator Visits Turkey [MTT-S Society News]

    Publication Year: 2018, Page(s):102 - 103
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Aims & Scope

IEEE Microwave Magazine is intended to serve primarily as a source of information of interest to professionals in the field of microwave theory and techniques.

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Meet Our Editors

Editor-in-Chief
Alfy Riddle
M/A-COM Technology Solutions
microwave.editor@ieee.org

408-506-0972