This book is a pioneering exploration of a new form of high-frequencyattenuation chamber that has the potential to revolutionize antenna measurementtechniques. The authors present an innovative concept that leverages theclassical principle of changing the polarization of radio waves, eliminatingthe need for traditional non-reflection chambers. By analyzing experimentalresults and searching for the optimal shape and composition of a depolarizationpanel, this monograph provides valuable insights into creating a non-reflectiveenvironment for accurately measuring the directional properties of antennas.The book delves into the methodology of frequency analysis, optimization of thedepolarization panel, and the creation of a measuring workplace using thispanel. It highlights the crucial attenuation phenomenon of suppressingcross-polarization coupling between transmitting and receiving antennas,enabling antenna measurements in any laboratory environment. With its promisingresults and practical applications in antenna technology, this publicationoffers a compelling and cutting-edge approach to antenna measurement that willcaptivate researchers, engineers, and professionals in the field.