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Understanding Microwave Heating Cavities

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Tse V. Chow Ting Chan and Howard C. Reader

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Artech House

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RF/Microwave °³·Ð

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¡°Throughout, the material is well presented and easy to read. There are also many interesting illustrations of the electric field inside resonant cavities...this book presents a valid attempt to arrive at general design guidelines, based on a large and well documented collection of numerical and experimental reults.¡±
---Ampere Newsletter, December 2000

Better understand the field distribution patterns and behavior inside a resonant or weakly-resonant microwave cavity and learn a new, inexpensive technique for testing cavities with this lightly-technical, hands-on book. By providing unique and practical information along with experimental evidence, analysis of existing data, and simulations you can run yourself, this book is a comprehensive resource on microwave heating for engineers and non-engineers alike.

Microwave Heating enhances your understanding of the different classes of microwave heating cavities and their properties, the field distribution patterns in loaded and unloaded cavities, cross-coupling between feeds in a multiple feed loaded multimode cavity, and empty, coaxially, and eccentrically loaded single-mode cavities. Plus, you’ll save time and money using the authors?proven, inexpensive method for evaluating the field pattern and status of the load being heated inside a microwave heating cavity.

Featuring simulated validation of information provided in the text, as well as extensive use of illustrations, you are guided past the usual mathematical pitfalls of highly-technical microwave heating books, but still get the real-world understanding you need to confidently design or test new devices.

Software Included! Contains 4 MATLAB codes for producing a 2-D view of the cavity mode for a given frequency and load size. System Requirements: 90MHz+ PC running Windows 95 or later. 64 MB RAM, 10MB hard disk space.

Contents: Introduction. Microwave Heating Fundamentals. Numerical Techniques. Measurements. Field Studies in Multimode Cavities. Heating Uniformity in Multi-Feed Multimode Loaded Cavities. Single Mode Resonant Cavities. Slotted Feed Cavities. A Thought Process for the Choice of Applicators. Appendix: EMAS Data Flow Diagram. Cavity and Feed Dimensions. Conductivities of Some Commonly Used Materials. Dielectric Properties, Constant and Loss Tangent of Some Materials. Table of Rectangular Waveguide Dimensions. Data and Fittings. System Calibration. Bessel Functions. Rectangular Waveguide Field Equations. MATLAB Routines.

Tse Voon Chow Ting Chan is a postdoctoral fellow in the Department of Electrical and Electronic Engineering at the University of Stellenbosch in South Africa, where he earned his Ph.D. in Microwave Heating. He received his B.Sc. in Electronics cum laude from the University of Natal (Durban). He is a member of the IEEE and the South African Institute of Electrical Engineers (SAIEE).

Howard Charles Reader is Chair of High Frequency Electronics in the Department of Electrical and Electronic Engineering at the University of Stellenbosch. Since 1986, he has been teaching and consulting in the fields of microwave dielectric heating, metrology, electromagnetics, antenna engineering, high frequency circuits, and electromagnetic compatibility. Dr. Reader received his Ph.D. in Time Domain Electromagnetics from St. John’s College of Cambridge University, and his B.Sc. in Electronic Engineering from King’s College, London. He is also a member of the Professional Group on Electromagnetic Compatibility of the IEE.

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