Principles of Planar Near-Field Antenna Measurements PDF Download
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Author: Stuart Gregson
Publisher: IET
ISBN: 0863417361
Category : Technology & Engineering
Languages : en
Pages : 413
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Book Description
This single volume provides a comprehensive introduction and explanation of both the theory and practice of 'Planar Near-Field Antenna Measurement' from its basic postulates and assumptions, to the intricacies of its deployment in complex and demanding measurement scenarios. To do this the book initially examines the properties of antennas that allow them to enhance the free space interaction of electronic systems and this leads into a full description of the theory of 'Planar Near-Field Scanning'.
Author: Stuart Gregson
Publisher: IET
ISBN: 0863417361
Category : Technology & Engineering
Languages : en
Pages : 413
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Book Description
This single volume provides a comprehensive introduction and explanation of both the theory and practice of 'Planar Near-Field Antenna Measurement' from its basic postulates and assumptions, to the intricacies of its deployment in complex and demanding measurement scenarios. To do this the book initially examines the properties of antennas that allow them to enhance the free space interaction of electronic systems and this leads into a full description of the theory of 'Planar Near-Field Scanning'.
Author: Hubert Trzaska
Publisher: Noble Publishing
ISBN: 9781884932106
Category : Science
Languages : en
Pages : 219
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Book Description
In this book, internationally respected EMF measurement expert Hubert Trzaska discusses the specific problems of EMF measurements in the near field and the main factors limiting measurement accuracy. In light of the growing public and professional concern over the intensity of these fields and their potential health risks, Trzaska describes methods that provide accurate data to aid the development of new, improved standards. Measuring methods are examined for electromagnetic fields (EMF), electric fields and magnetic fields; measurement discussions include power density and photonic EMF measurements. Contents: The Principles of Near-Field EMF Measurements; EMF Measurement Methods; Electric Field Measurement; Magnetic Field Measurement; Power Density Measurement; Directional Pattern Synthesis; Other Factors Limiting Measurement Accuracy; Photonic EMF Measurements.
Author: Jesper E. Hansen
Publisher: IET
ISBN: 9780863411106
Category : Technology & Engineering
Languages : en
Pages : 408
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Book Description
This book describes the aspects of antenna test ranges, data processing schemes and measurement schemes.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309055903
Category : Political Science
Languages : en
Pages : 177
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Book Description
The U.S. Navy established an ecological monitoring program to determine whether electric and magnetic fields from extremely low frequency (ELF) communications systems influenced plant and animal populations near the transmitting facilities. Although some of the researchers believe that a few biological changes might have occurred, they concluded that the results do not indicate significant adverse ecological effects. This book evaluates the 11 ecological studies of the Navy's monitoring program and examines the adequacy of experimental design, the data collection and analysis, and the soundness of the conclusions. It also addresses whether the monitoring program was capable of detecting subtle effects due to ELF exposure and examines the biological changes observed by some program researchers, such as enhanced tree growth.
Author: Vince Rodriguez
Publisher: Artech House
ISBN: 163081539X
Category : Technology & Engineering
Languages : en
Pages : 321
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Book Description
As technologies for wireless communications, including 5G and Internet of Things (IoT), require more complex antennas, practitioners need more information on the best methods to perform measurements on these different types of antennas. This exciting resource provides guidance on the proper design of indoor ranges for RF antenna measurements. The important aspects of specifying the range or resources needed in a development program are explored. Analysis of existing ranges to determine their suitability for performing specific test that a user of the range may require is also introduced. Readers find in-depth coverage of the design of ranges and how to evaluate the error contributions of the range and the best approach to measure a system, antenna, or other radiating hardware. The book provides information on selecting the right range to make a specific type of measurement and understanding for an RF absorber. Matlab scripts are also included to help readers estimate the performance of an RF absorber. Readers will be able to estimate the required space for a given type of measurement, as well as identify what type of range is the better choice, based on physical limitations and economics. Simple rules for the design of an anechoic chamber, based on the required accuracy and parameters to be measured are described. Packed with examples and references, this book is a prime reference for any practitioner that uses or designs facilities for the measurement of electromagnetic energy.
Author: Paul S. Ruggera
Publisher:
ISBN:
Category : Calibration
Languages : en
Pages : 36
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309054478
Category : Science
Languages : en
Pages : 379
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Book Description
Can the electric and magnetic fields (EMF) to which people are routinely exposed cause health effects? This volume assesses the data and draws conclusions about the consequences of human exposure to EMF. The committee examines what is known about three kinds of health effects associated with EMF: cancer, primarily childhood leukemia; reproduction and development; and neurobiological effects. This book provides a detailed discussion of hazard identification, dose-response assessment, exposure assessment, and risk characterization for each. Possible Health Effects of Exposure to Residential Electric and Magnetic Fields also discusses the tools available to measure exposure, common types of exposures, and what is known about the effects of exposure. The committee looks at correlations between EMF exposure and carcinogenesis, mutagenesis, neurobehavioral effects, reproductive and developmental effects, effects on melatonin and other neurochemicals, and effects on bone healing and stimulated cell growth.
Author: Arthur D. Yaghjian
Publisher:
ISBN:
Category : Antennas (Electronics)
Languages : en
Pages : 44
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Book Description
Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 298
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Book Description
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 548
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Book Description
