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.”
A bold new history of the global class war A thrilling and vivid work of history, Class War weaves together literature and politics to chart the making and unmaking of social class through revolutionary combat. In a narrative that spans the globe and more than two centuries of history, Mark Steven traces the history of class war from the Haitian Revolution to Black Lives Matter. Surveying the literature of revolution, from the poetry of Shelley and Byron to the novels of Émile Zola and Jack London, exploring the writings of Frantz Fanon, Che Guevara, and Assata Shakur, Class War reveals the interplay between military action and the politics of class, showing how solidarity flourishes in times of conflict. Written with verve and ranging across diverse historical settings, Class War traverses industrial battles, guerrilla insurgencies, and anticolonial resistance, as well as large-scale combat operations waged against capitalism's regimes and its interstate system. In our age of economic crisis, ecological catastrophe, and planetary unrest, Steven tells the stories of those whose actions will help guide future militants toward a revolutionary horizon.
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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