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Full Description
Microwave Vacuum Electronic Devices (VEDs) encompasses VEDs operating in the microwave to terahertz frequency regime. The book aims to equip students, teachers, scientists, and engineers with an understanding of the concepts and physical principles underpinning VEDs. VEDs have manifold applications for technologies used in the defence, civilian, medical, scientific, and industrial sectors. The authors build confidence among the readers seeking to design and develop VEDs in these sectors by presenting the enabling concepts and step-by-step guides to the mathematical formulations used in VEDs in the microwave, millimeter-wave and terahertz frequency range. Chapters covering important physical principles, including space-charge waves, cyclotron waves, and electron bunching (both relativistic and non-relativistic), are followed by discussions of techniques for improving the performance of VEDs. The book will be a useful reference for advanced undergraduates, postgraduates and industry professionals seeking to understand and develop their own VEDs.
Key Features:
Discusses practical concepts that enable readers to develop independent thinking in the design and development of VEDs.
Provides detailed mathematical steps that make the design and development of VEDs easier to understand.
Presents end-of-chapter questions and hints throughout to aid teaching and learning.
Contents
1 Introduction
2 Space-Charge Waves and Cyclotron Waves
3 Non-Relativistic Bunching of Electrons
4 Cyclotron Resonance Maser and Weibel Instabilities and Relativistic Bunching of Electrons in Gyro-Devices
5 Induced Current on Electrodes due to Electron Beam Flow
6 Kinetic or Potential Energy Transfer from the Bunches of Electrons to Electromagnetic Waves
7 Space-Charge-Limiting Current
8 Electromagnetic Wave Propagation through Helix Slow-Wave Interaction Structure of a Traveling-Wave Tube
9 Analysis of Fast-wave Interaction Structures
10 Beam-Present Dispersion Relation of Helix Slow-Wave Structure and Interpretation thereof for the Gain Equation of a Helix-Traveling-Wave Tube
11 Broadbanding a Helix-Traveling-Wave Tube
12 Beam-present Dispersion Relations of Fast-Wave Interaction Structures and Interpretation Therefrom Gain Equation
13 Techniques for Widening the Bandwidth of Disc-Loaded Gyro-Traveling-Wave Tube
14 Start-Oscillation Condition of a Vacuum Electronic Device
15 Performance Improvement of Vacuum Electronic Devices by Plasma Assistance
16 Performance Improvement of Vacuum Electronic Devices by Metamaterial Assistance
17 Exploration of Vacuum Electronic Devices into Terahertz Regime
18 Summary
Index
