Wanzhao Cui – författare

This book combines the experience and achievements in engineering practice of the China Academy of Space Technology, Xi’an, with a focus on the field of high-power multipactor over recent decades. It introduces the main concepts, theories, methods and latest technologies of multipactor simulation, at both the theoretical level and as a process of engineering, while providing a comprehensive introduction to the outstanding progress made in the research technology of multipactor numerical simulation in China. At the same time, a three-dimensional numerical simulation method of multipactor for typical high-power microwave components of spacecraft is introduced.

This book is an essential volume for engineers in the field of high-power microwave technology. It can also be used as a reference for researchers in related fields, or as a teaching reference book for graduate students majoring in Astronautics at colleges and universities.

This book combines the experience and achievements in engineering practice of the China Academy of Space Technology, Xi’an, with a focus on the field of high-power multipactor over recent decades. It introduces the main concepts, theories, methods and latest technologies of multipactor simulation, at both the theoretical level and as a process of engineering, while providing a comprehensive introduction to the outstanding progress made in the research technology of multipactor numerical simulation in China. At the same time, a three-dimensional numerical simulation method of multipactor for typical high-power microwave components of spacecraft is introduced.

This book is an essential volume for engineers in the field of high-power microwave technology. It can also be used as a reference for researchers in related fields, or as a teaching reference book for graduate students majoring in Astronautics at colleges and universities.

Focusing on passive intermodulation (PIM), a common instance of distortion in high-power multi-channel communication systems, the book introduces the concepts and technology of PIM.In the context of "space-ground-object" integrated communication and increasing spectrum resource constraints, the PIM problem is becoming increasingly prominent, while microwave components and system-level PIM are facing new challenges. Based on the experience and achievements in engineering practice of the China Academy of Space Technology in Xi’an, this title describes the basic theory, generation mechanism, analysis and evaluation methods, location detection and suppression techniques for microwave components of spacecraft PIM from a theoretical and engineering perspective. Furthermore, the latest achievements of microwave component PIM are outlined in depth, along with operational guidance and paths for further advancement.This book will be a useful reference for researchers, engineers and students interested in microwave technology, satellite technology and mobile communication technology.

Wanzhao Cui is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His current research interests include microwave technology and satellite communication.

Jun Li is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. He is engaged in research on microwave technology and satellite communication.

Huan Wei is a senior engineer at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. Her expertise is in the field of space microwave technology.

Xiang Chen is a senior engineer at the National Key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His research interests are microwave and millimeter wave technology.

Focusing on passive intermodulation (PIM), a common instance of distortion in high-power multi-channel communication systems, the book introduces the concepts and technology of PIM.In the context of "space-ground-object" integrated communication and increasing spectrum resource constraints, the PIM problem is becoming increasingly prominent, while microwave components and system-level PIM are facing new challenges. Based on the experience and achievements in engineering practice of the China Academy of Space Technology in Xi’an, this title describes the basic theory, generation mechanism, analysis and evaluation methods, location detection and suppression techniques for microwave components of spacecraft PIM from a theoretical and engineering perspective. Furthermore, the latest achievements of microwave component PIM are outlined in depth, along with operational guidance and paths for further advancement.This book will be a useful reference for researchers, engineers and students interested in microwave technology, satellite technology and mobile communication technology.

Wanzhao Cui is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His current research interests include microwave technology and satellite communication.

Jun Li is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. He is engaged in research on microwave technology and satellite communication.

Huan Wei is a senior engineer at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. Her expertise is in the field of space microwave technology.

Xiang Chen is a senior engineer at the National Key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His research interests are microwave and millimeter wave technology.

This book examines the physical mechanisms of secondary electrons and recent developments, focusing on the theory and applications of secondary electron emission and suppression technology.

With the development of the modern information industry, space microwave technology, new materials, devices, and high-precision processing methods, secondary electron emission and its applications face new scientific and engineering challenges and opportunities. This book discusses theoretical models, measurements, data results, surface processes, and dielectric charging analysis of secondary electron emission. It covers key areas such as particle physics theory, simulation algorithms, magneto-hydrodynamics, surface processes, and surface characterization. The secondary electron yield and energy spectrum data are disclosed and analyzed, benefiting fields such as space microwave multipactor, scanning electron microscope (SEM), particle accelerator, and microwave plasma. Several typical application scenarios are also presented. Using the secondary electron emission data provided, this book shows how the secondary electron multiplication effect can be suppressed and exploited to improve device performance.

This title will be a valuable reference for researchers and students interested in the physical mechanisms of secondary electrons, SEM, accelerators, electrostatic discharge, and space multipactor.