FDTD Modeling of EM Field inside Microwave Cavities

FDTD Modeling of EM Field inside Microwave Cavities PDF Author: Shiv Narayan
Publisher: Springer
ISBN: 981103415X
Category : Technology & Engineering
Languages : en
Pages : 87

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Book Description
This book deals with the EM analysis of closed microwave cavities based on a three-dimensional FDTD method. The EM analysis is carried out for (i) rectangular microwave ovens and (ii) hybrid-cylindrical microwave autoclaves at 2.45 GHz. The field distribution is first estimated inside domestic rectangular ovens in xy-, yz-, and zx-plane. Further, the RF leakage from the oven door is determined to study the effect of leakage radiation on wireless communication at 2.45 GHz. Furthermore, the EM analysis of the autoclave is carried out based on 3D FDTD using staircase approximation. In order to show the capability of autoclaves (excited with five source) for curing the aerospace components and materials, the field distribution inside autoclave cavity is studied in presence of aerospace samples. The FDTD based modelling of oven and autoclave are explained with the appropriate expressions and illustrations.

FDTD Modeling of EM Field inside Microwave Cavities

FDTD Modeling of EM Field inside Microwave Cavities PDF Author: Shiv Narayan
Publisher: Springer
ISBN: 981103415X
Category : Technology & Engineering
Languages : en
Pages : 87

Get Book Here

Book Description
This book deals with the EM analysis of closed microwave cavities based on a three-dimensional FDTD method. The EM analysis is carried out for (i) rectangular microwave ovens and (ii) hybrid-cylindrical microwave autoclaves at 2.45 GHz. The field distribution is first estimated inside domestic rectangular ovens in xy-, yz-, and zx-plane. Further, the RF leakage from the oven door is determined to study the effect of leakage radiation on wireless communication at 2.45 GHz. Furthermore, the EM analysis of the autoclave is carried out based on 3D FDTD using staircase approximation. In order to show the capability of autoclaves (excited with five source) for curing the aerospace components and materials, the field distribution inside autoclave cavity is studied in presence of aerospace samples. The FDTD based modelling of oven and autoclave are explained with the appropriate expressions and illustrations.

Modeling the Electromagnetic Field and the Plasma Excitation in a Moderate Pressure Microwave Cavity Plasma Source

Modeling the Electromagnetic Field and the Plasma Excitation in a Moderate Pressure Microwave Cavity Plasma Source PDF Author: Wen-yi Tan
Publisher:
ISBN:
Category : Diamond thin films
Languages : en
Pages : 416

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Book Description


Quantification of Induced Electromagnetic Fields Inside Material Samples Placed Inside an Energized Microwave Cavity by Finite-difference Time-domain (FDTD) Method

Quantification of Induced Electromagnetic Fields Inside Material Samples Placed Inside an Energized Microwave Cavity by Finite-difference Time-domain (FDTD) Method PDF Author: Yao-Chiang Kan
Publisher:
ISBN:
Category : Electromagnetic fields
Languages : en
Pages : 458

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Book Description


Adaptive Mesh Refinement in Time-Domain Numerical Electromagnetics

Adaptive Mesh Refinement in Time-Domain Numerical Electromagnetics PDF Author: Costas Sarris
Publisher: Springer Nature
ISBN: 3031016955
Category : Technology & Engineering
Languages : en
Pages : 135

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Book Description
This monograph is a comprehensive presentation of state-of-the-art methodologies that can dramatically enhance the efficiency of the finite-difference time-domain (FDTD) technique, the most popular electromagnetic field solver of the time-domain form of Maxwell's equations. These methodologies are aimed at optimally tailoring the computational resources needed for the wideband simulation of microwave and optical structures to their geometry, as well as the nature of the field solutions they support. That is achieved by the development of robust “adaptive meshing” approaches, which amount to varying the total number of unknown field quantities in the course of the simulation to adapt to temporally or spatially localized field features. While mesh adaptation is an extremely desirable FDTD feature, known to reduce simulation times by orders of magnitude, it is not always robust. The specific techniques presented in this book are characterized by stability and robustness. Therefore, they are excellent computer analysis and design (CAD) tools. The book starts by introducing the FDTD technique, along with challenges related to its application to the analysis of real-life microwave and optical structures. It then proceeds to developing an adaptive mesh refinement method based on the use of multiresolution analysis and, more specifically, the Haar wavelet basis. Furthermore, a new method to embed a moving adaptive mesh in FDTD, the dynamically adaptive mesh refinement (AMR) FDTD technique, is introduced and explained in detail. To highlight the properties of the theoretical tools developed in the text, a number of applications are presented, including: Microwave integrated circuits (microstrip filters, couplers, spiral inductors, cavities). Optical power splitters, Y-junctions, and couplers Optical ring resonators Nonlinear optical waveguides. Building on first principles of time-domain electromagnetic simulations, this book presents advanced concepts and cutting-edge modeling techniques in an intuitive way for programmers, engineers, and graduate students. It is designed to provide a solid reference for highly efficient time-domain solvers, employed in a wide range of exciting applications in microwave/millimeter-wave and optical engineering.

Handbook of Industrial Diamonds and Diamond Films

Handbook of Industrial Diamonds and Diamond Films PDF Author: Mark A. Prelas
Publisher: Routledge
ISBN: 135144249X
Category : Science
Languages : en
Pages : 1232

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Book Description
Examines both mined and synthetic diamonds and diamond films. The text offers coverage on the use of diamond as an engineering material, integrating original research on the science, technology and applications of diamond. It discusses the use of chemical vapour deposition grown diamonds in electronics, cutting tools, wear resistant coatings, thermal management, optics and acoustics, as well as in new products.

Microwave Cavities and Detectors for Axion Research

Microwave Cavities and Detectors for Axion Research PDF Author: Gianpaolo Carosi
Publisher: Springer
ISBN: 3319927264
Category : Science
Languages : en
Pages : 159

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Book Description
The nature of dark matter remains one of the preeminent mysteries in physics and cosmology. It appears to require the existence of new particles whose interactions to ordinary matter are extraordinarily feeble. One well-motivated candidate is the axion, an extraordinarily light neutral particle that may possibly be detected by looking for their conversion to detectable microwaves in the presence of a strong magnetic field. This has led to a number of experimental searches that are beginning to probe plausible axion model space and may discover the axion in the near future. These proceedings discuss the challenges of designing and operating tunable resonant cavities and detectors at ultralow temperatures. The topics discussed here have potential application far beyond the field of dark matter detection and may be applied to resonant cavities for accelerators as well as designing superconducting detectors for quantum information and computing applications. This work is intended for graduate students and researchers interested in learning the unique requirements for designing and operating microwave cavities and detectors for direct axion searches and to introduce several proposed experimental concepts that are still in the prototype stage.

Innovative Food Processing Technologies

Innovative Food Processing Technologies PDF Author: Kai Knoerzer, PhD
Publisher: John Wiley & Sons
ISBN: 0470959428
Category : Technology & Engineering
Languages : en
Pages : 410

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Book Description
Part of the IFT (Institute of Food Technologists) series, this book discusses multiphysics modeling and its application in the development, optimization, and scale-up of emerging food processing technologies. The book covers recent research outcomes to demonstrate process efficiency and the impact on scalability, safety, and quality, and technologies including High Pressure Processing, High Pressure Thermal Sterilization, Radiofrequency, Ultrasound, Ultraviolet, and Pulsed Electric Fields Processing. Ideal for food and process engineers, food technologists, equipment designers, microbiologists, and research and development personnel, this book covers the importance and the methods for applying multiphysics modeling for the design, development, and application of these technologies.

The Microwave Processing of Foods

The Microwave Processing of Foods PDF Author: Marc Regier
Publisher: Woodhead Publishing
ISBN: 0081005318
Category : Technology & Engineering
Languages : en
Pages : 486

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Book Description
The Microwave Processing of Foods, Second Edition, has been updated and extended to include the many developments that have taken place over the past 10 years. Including new chapters on microwave assisted frying, microwave assisted microbial inactivation, microwave assisted disinfestation, this book continues to provide the basic principles for microwave technology, while also presenting current and emerging research trends for future use development. Led by an international team of experts, this book will serve as a practical guide for those interested in applying microwave technology. Provides thoroughly up-to-date information on the basics of microwaves and microwave heating Discusses the main factors for the successful application of microwaves and the main problems that may arise Includes current and potential future applications for real-world application as well as new research and advances Includes new chapters on microwave-assisted frying, microbial inactivation, and disinfestation

Development of Packaging and Products for Use in Microwave Ovens

Development of Packaging and Products for Use in Microwave Ovens PDF Author: Ulrich Erle
Publisher: Woodhead Publishing
ISBN: 0081027141
Category : Technology & Engineering
Languages : en
Pages : 592

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Book Description
Development of Packaging and Products for Use in Microwave Ovens, Second Edition, supports the efficient design of microwaveable food products and packaging materials, explaining all essential aspects in a detailed and systematic way. This new edition reviews recent developments and the latest cutting-edge technology, including new materials and package formats, new ideas for product development, and new information on developments in microwave technology. Sections cover the effect of food dielectric properties and heating uniformity, microwave packaging materials, product development, food, packaging, oven safety, and the computer modelling of microwave products and active packaging. Written by a distinguished team of international contributors, this book is not only a valuable resource for engineers, manufacturers and product developers in the food and packaging industries, but also a great research tool for industrial R&D and academia. Enables the reader to understand product and packaging materials for microwave ovens down to a highly technical and detailed level Offers systematic coverage on all aspects involved, including principles, materials, design, product development and modelling Includes the very latest developments in products and packaging, including smart packaging and solid state technology

Analysis of the Electromagnetic Field Distribution in a Loaded Cavity Model of Microwave Heating

Analysis of the Electromagnetic Field Distribution in a Loaded Cavity Model of Microwave Heating PDF Author: B. Wass
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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Book Description