The book "Fundamentals of design of microwave integrated circuits: teaching aid. H. 2: Elemental base of microwave integrated circuits" authored by B. B. Kirilchuk is an important contribution to the field of radio engineering and microwave electronics. This edition, the second part of the tutorial, continues to explore key aspects of the design and development of microwave (ultra-high frequency) integrated circuits, delving into the specifics of the element base, which is the basis for the creation of modern devices. If you are a student, graduate student or specialist in radio engineering, electronics or related disciplines, this book will become an indispensable source of knowledge for you. It will be useful both for those who are just starting their way in the design of microwave circuits, and for experienced engineers seeking to update their knowledge about modern technologies and components. The book may also be of interest to teachers and researchers working in the development of new technologies and materials for microwave integrated circuits. The second part of the manual focuses on the element base, which includes various components used in the design of microwave integrated circuits. The author examines in detail both traditional and modern elements, including active and passive components, their characteristics, advantages and disadvantages. Kirilchuk shares his experience and practical recommendations, which allows the reader not only to understand the theoretical foundations, but also to apply them in practice. The book covers important topics such as material selection, production technology, and methods for testing and analyzing microwave integrated circuits. It examines current trends in development and production, making it relevant for those who want to be at the forefront in their field. Special attention is paid to new achievements in the field of semiconductor technologies, which allows readers to realize how quickly technologies are developing and how this affects design. The author's style is distinguished by clarity and accessibility, which makes complex topics understandable even for beginners. In. B. Kirilchuk is a well-known specialist in the field of radio engineering, his work is respected among professionals. He is also the author of other teaching aids and scientific articles that have been recognized for their relevance and practical focus. By reading this book, you can not only deepen your knowledge, but also get inspiration for your own research and development. The book "Fundamentals of design of microwave integrated circuits: teaching aid. H. 2: Elemental base of microwave integrated circuits" is not just a textbook, but a real find for everyone who is interested in modern technologies in the field of electronics. It will become a reliable assistant on your way to mastering the complex but fascinating aspects of microwave circuit design. If you are looking for information on how to create efficient and modern devices, this book should definitely take a place on your shelf. Do not miss the opportunity to expand your horizons in the world of microwave technology, immersed in the deep and fascinating pages of this manual