说明：  这本书由六章组成。第1章和第2章主要讨论欧空局理论的基本原理，这应该是任何认真对待欧空局的人的知识基础的一部分。概念，如波束宽度，光栅瓣，瞬时带宽等，被详细地涵盖。第1章只关注一维ESA，而第2章深入研究二维ESA分析，包括坐标定义、正弦空间和模式分析
(This book is comprised of six chapters. Chapters 1 and 2 deal primarily with the fundamentals of ESA theory that should be a part of the knowledge base of anyone who is serious about ESAs. Concepts such as beamwidth, grating lobes, instantaneous bandwidth, etc., are covered in detail. Chapter 1 focuses solely on one-dimensional ESAs, while Chapter 2 delves into two-dimensional ESA analysis and includes coordinate definitions, sine space, and pattern analysis)