Sollfrey william (19 Ergebnisse)
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.
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- Softcover
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- Softcover
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- Hardcover
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- Hardcover
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- Hardcover
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Weitere Bilder- Softcover
- Print-on-Demand
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Paperback. Zustand: New. Print on Demand. This book explores the effects of limited magnetic field strength on the operation of traveling-wave tubes. Traveling-wave tubes are critical components in many technologies we rely on today, including radar and satellite communications. The magnetic field is required for focusing the el…ectron beam at the heart of the tube, but the ideal, infinitely strong field is not practically achievable. The author presents a theoretical analysis to investigate the discrepancies between an ideal magnetic field and the finite field strengths used in practice. The analysis explains how the magnetic field affects the propagation of waves in the tube and shows that while some wave properties do change, no new types of waves are generated. The author proves that three real roots exist for the resulting complex equation and concludes that the finite magnetic field strength does not change the fundamental characteristics of wave propagation in the tube. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
Weitere Bilder- Softcover
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Paperback. Zustand: New. Print on Demand. This book presents a rigorous method for solving complex problems in wave theory. The author uses the example of how this method can be applied to the diffraction of light by a cone to demonstrate the calculation of diffraction of a pulse by a conducting wedge or cone using Fourier synth…esis. The author uses these examples to explain the relations between harmonic and pulse solutions to the problem. In doing so, the author provides an illuminating bridge between the classical and modern understanding of this important and broad physical phenomenon. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
Weitere Bilder- Softcover
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Paperback. Zustand: New. Print on Demand. This book examines the effect of the excitation conditions of a traveling wave tube on its operation. By taking the Laplace transform of the field equations with respect to the longitudinal coordinate, the book's rigorous mathematical analysis provides a way to bring the initial conditio…ns directly into the equations, rather than matching them at the input. This new method of treatment successfully surmounts the difficulties of previous analyses and presents a complete system that includes the continuous spectrum of the helical sheath system. The theory is developed for arbitrary angular dependence with no greater complications than arise in the symmetric case, making it applicable to a wide range of excitation systems. The book determines the current in the beam at large distances down the helix and expresses it in terms of transfer coefficients which represent the current that would be generated by unit field, unit charge, or unit a.c. electron velocity. The insights presented in this book provide a valuable contribution to the field of traveling wave tube research, offering a deeper understanding of the dynamics of these systems and their response to various excitation conditions. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
Weitere Bilder- Softcover
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Paperback. Zustand: New. Print on Demand. This book delves into the electrical properties of rectangular dielectric blocks placed in rectangular waveguides. The author determines the equivalent circuit, a simplified representation of the block's electrical behavior, using variational methods developed by Julian Schwinger. The eq…uivalent circuit elements, impedance and reflection coefficient, are derived for narrow blocks compared to the waveguide's width. Formulas are provided to calculate these elements based on the block's dimensions, dielectric constant, and waveguide frequency. The book also explores the resonant behavior of dielectric blocks and provides insights into their transmission properties. This work contributes to the understanding of electromagnetic phenomena in waveguides and offers practical guidance for designing waveguide systems incorporating dielectric blocks. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
- Softcover
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Paperback. Zustand: New. Print on Demand. This book delves into the inner workings of helical traveling wave tubes, exploring their mechanisms to amplify signals and generate noise. The author, an established authority in the field, presents a comprehensive analysis of these devices, examining their behavior under varying condit…ions of current, voltage, and other parameters. The book situates helical traveling wave tubes within the broader field of electronics, shedding light on their historical significance and theoretical foundations. Through in-depth mathematical formulas and illustrative figures, the author unveils the complex interplay of factors that influence the performance of these devices. The book concludes with a profound understanding of the fundamental principles governing traveling wave tubes, providing valuable insights for engineers, researchers, and students seeking to advance their knowledge in this specialized field. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.
