This book is useful both for those who want to get initial information on the measurement of the antenna parameters, and for specialists directly involved in the experimental determination of the antenna parameters from the results of measuring the amplitude-phase distribution in the near zone of the antennas. Currently, the near-field method is the most common one for antenna measurements. In most books, an academic approach is given to the issue under consideration and it is difficult to use them for the direct organization of measurements. In many others, specific narrow issues are considered that are accessible to understanding only by highly qualified engineers/readers. The purpose of this book is to get rid of the above disadvantages by offering the reader a more accessible exposition and formulas by which appropriate computer programs can be written with minimal effort. The contents of this book allow interested specialists to be not only users of the near-field measuring facilities, but also help in understanding the principles of their work. This book is intended for engineers and specialists whose activities are related to experimental testing of radio characteristics of complex antenna systems, especially near-field measurements, and is also useful as a textbook for senior students in the field of “radioelectronics” and “radiophysics.”
This book presents concepts for radio engineers to ensure electromagnetic compatibility based on the methodological approaches to reduce the probability of failures of radio equipment and improve the flight safety of complex aerospace systems. The book deals with issues related to methods for assessing the electromagnetic compatibility of integrated ground and on-board complexes, methods for obtaining information about unintentional interference, the theory of predicting unintentional interference, experimental studies of the characteristics that determine electromagnetic compatibility, methods for calculating reference systems, the influence of the method of generating the output signals of the transmitting path on the relative level of spurious radiation, electromagnetic compatibility of ultrahigh-frequency devices with phase modulation, with the features of industrial noise, with the calculation of electromagnetic fields scattered elements of the airframe, with direction finding errors caused by the scattering of electromagnetic fields by elements of the airframe, with the evaluation of isolation between antennas in the presence of an electromagnetic screen, solving problems of electromagnetic compatibility of antenna devices with the model electromagnetic interference radio systems, calculation of electromagnetic compatibility of specific navigation systems, with the provision of electromagnetic compatibility in civil aviation, taking into account modern requirements.
This book is useful both for those who want to get initial information on the measurement of the antenna parameters, and for specialists directly involved in the experimental determination of the antenna parameters from the results of measuring the amplitude-phase distribution in the near zone of the antennas. Currently, the near-field method is the most common one for antenna measurements. In most books, an academic approach is given to the issue under consideration and it is difficult to use them for the direct organization of measurements. In many others, specific narrow issues are considered that are accessible to understanding only by highly qualified engineers/readers. The purpose of this book is to get rid of the above disadvantages by offering the reader a more accessible exposition and formulas by which appropriate computer programs can be written with minimal effort. The contents of this book allow interested specialists to be not only users of the near-field measuring facilities, but also help in understanding the principles of their work. This book is intended for engineers and specialists whose activities are related to experimental testing of radio characteristics of complex antenna systems, especially near-field measurements, and is also useful as a textbook for senior students in the field of “radioelectronics” and “radiophysics.”
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