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1. |
Record Nr. |
UNINA9910467210403321 |
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Autore |
Wang Zhancang |
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Titolo |
High-efficiency load modulation power amplifiers for wireless communications / / Zhancang Wang |
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Pubbl/distr/stampa |
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Boston ; ; London : , : Artech House, , [2017] |
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[Piscataqay, New Jersey] : , : IEEE Xplore, , [2017] |
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ISBN |
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Descrizione fisica |
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1 online resource (xv, 371 pages) : illustrations |
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Collana |
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Artech House microwave library |
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Disciplina |
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Soggetti |
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Power amplifiers |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Intro; High-Efficiency Load Modulation Power Amplifiers for Wireless Communications; Contents; Preface; Acknowledgments; Chapter 1 Call for Efficient Power Amplification; 1.1 Figures of Merit of a Modern Radio Power Amplifier; 1.1.1 Output Power; 1.1.2 Power Gain; 1.1.3 Power Added Efficiency; 1.1.4 Bandwidth; 1.1.5 Linearity; 1.2 Evolution of Communication Signals; 1.2.1 History and Trends of Communication Signals; 1.2.2 Effect of Signal Evolution on PAPR; 1.2.3 Effect of High PAPR on Figures of Merit for PAs; 1.3 Efficient Amplification with Modulation; 1.3.1 Bias Modulation Amplifiers |
1.3.2 Load Modulation AmplifiersReferences; Select Bibliography; Chapter 2 Passive Load Impedance Tuner Design; 2.1 Specification of Passive Load Impedance Tuners; 2.2 Selection of Tuning Elements for Passive Impedance Tuners; 2.3 Microwave Varactors; 2.3.1 Varactors for Dynamic Load Modulation; 2.3.2 MEMS Varactors; 2.3.3 BST Varactors; 2.3.4 Silicon Varactor Diodes; 2.3.5 GaAs Varactor Diodes; 2.3.6 SiC Varactor Diodes; 2.3.7 GaN Varactor Diodes; 2.4 High-Performance Varactor Stacks; 2.4.1 Distortion-Free Varactor Stack; 2.4.2 Wide Tone Spacing Varactor Stack |
3.4 PA Design for Dynamic Load3.4.1 Dynamic Load Class-AB Amplifier; 3.4.2 Dynamic Load Saturated Class-B Amplifier; 3.4.3 Dynamic Load Class-C Amplifier; 3.4.4 Dynamic Load Class-D Amplifier; 3.4.5 Dynamic Load Class-E Amplifier; 3.4.6 Dynamic Class- |
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F Amplifier; 3.5 Digital Signal Processing for Dynamic Load; 3.5.1 Timing Alignment for Dynamic Load; 3.5.2 Bandwidth Reduction of Dynamic Load Control Signal; 3.5.3 Slew-Rate Reduction of Dynamic Load Control Signal; 3.5.4 Linearization of Dynamic Load Amplifier; 3.6 Measurement Methods for Dynamic Load Amplifiers |
3.6.1 Test Bed Sync for the Dynamic Load System3.6.2 Continuous-Wave Versus Complex Stimulus; 3.6.3 Complex Stimulus Measurements Setup; 3.6.4 Complex Characterization Techniques; References; Selected Bibliography; Chapter 4 Active Load Modulation Power Amplifiers; 4.1 Balanced Versus Doherty; 4.2 Active Load Pulling Effect; 4.3 Active Load Amplifiers; 4.4 Doherty Amplifier; 4.4.1 Impedance Inverter; 4.4.2 Amplifier Cells; 4.4.3 Offset Lines; 4.4.4 Input Power Splitter; 4.4.5 Output Doherty Combining; 4.5 Classical Doherty Limitations and Solutions; 4.5.1 Low Breakpoint Efficiency |
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Sommario/riassunto |
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Includes practical and cutting-edge insight, this book presents a complete and systematic overview of the practical design considerations of radio frequency (RF) high efficiency load modulation power amplifiers (PA) for modern wireless communications for 4G and beyond. -- |
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2. |
Record Nr. |
UNINA9910778915403321 |
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Autore |
Chase James <1969-, > |
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Titolo |
Analytic versus continental : arguments on the methods and value of philosophy / / James Chase and Jack Reynolds |
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Pubbl/distr/stampa |
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London ; ; New York : , : Routledge, , 2014 |
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ISBN |
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1-317-49192-0 |
1-317-49193-9 |
1-315-71143-5 |
1-280-12007-X |
9786613523983 |
1-84465-478-8 |
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Descrizione fisica |
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1 online resource (viii, 294 pages) : digital, PDF file(s) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Analysis (Philosophy) |
Continental philosophy |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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First published 2011 by Acumen. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction : analytic versus continental : arguments on the methods and value of philosophy -- Frege and Husserl -- Russell versus Bergson -- Carnap versus Heidegger -- The Frankfurt School, the positivists and Popper -- Royaumont : Ryle and Hare versus French and German philosophy -- Derrida versus Searle and beyond -- Introduction to philosophical method -- Analytic philosophy and the intuition pump : the uses and abuses of thought experiments -- Reflective equilibrium : commone sense or conservatism? -- The fate of transcendental reasoning -- Phenomenology : returning to the things themselves -- Genealogy, hermeneutics and deconstruction -- Style and clarity -- Philosophy, science and art -- Ontology and metaphysics -- Truth, objectivity and realism -- Time : a contretemps -- Mind, body and representationalism -- Ethics and politics : theoretical and anti-theoretical approaches -- Problem(s) of other minds : solutions and dissolutions in analytic and continental philosophy -- Conclusion. |
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Sommario/riassunto |
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Throughout much of the twentieth century, the relationship between analytic and continental philosophy has been one of disinterest, caution |
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or hostility. Recent debates in philosophy have highlighted some of the similarities between the two approaches and even envisaged a post-continental and post-analytic philosophy. Opening with a history of key encounters between philosophers of opposing camps since the late-nineteenth century from Frege and Husserl to Derrida and Searle the book goes on to explore in detail the main methodological differences between the two approaches. This covers a very wide range of topics, from issues of style and clarity of exposition to formal methods arising from logic and probability theory. The final section presents a balanced critique of the two schools approaches to key issues such as time, truth, subjectivity, mind and body, language and meaning, and ethics. Analytic versus Continental is the first sustained analysis of both approaches to philosophy, examining the limits and possibilities of each. It provides a clear overview of a much-disputed history and, in highlighting the strengths and weaknesses of both traditions, also offers future directions for both continental and analytic philosophy. |
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3. |
Record Nr. |
UNINA9910693695503321 |
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Titolo |
Interpretive geologic cross sections for the Death Valley Regional Flow System and surrounding areas, Nevada and California / / U.S. Dept. of the Interior, U.S. Geological Survey ; by Donald S. Sweetkind ... [and others] ; prepared in cooperation with the Office of Environmental Restoration and Waste Management, U.S. Department of Energy |
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Pubbl/distr/stampa |
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[Reston, Va.?] : , : The Survey, , 2001 |
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Edizione |
[Version 1.0, last modified 8 Nov. 2001.] |
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Collana |
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U.S. Geological Survey miscellaneous field studies map ; ; MF-2370 |
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Altri autori (Persone) |
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SweetkindDonald S (Donald Steven) |
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Soggetti |
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Geology - Death Valley (Calif. and Nev.) |
Geology - Nevada - Nevada Test Site |
Maps. |
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Lingua di pubblicazione |
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Formato |
Materiale cartografico a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Relief shown by shading. |
Title from HTML index page (viewed on Nov. 19, 2001). |
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