Compact Size Wireless Power Transfer Using Defected Ground Structures
暫譯: 使用缺陷地結構的緊湊型無線電力傳輸

本書探討近場無線電力傳輸（WPT）系統中的設計挑戰，例如高效率、緊湊尺寸和長傳輸範圍。它提出了使用不同形狀的缺陷地面結構（DGS）如（H、半H和螺旋條DGS）來設計低剖面TX/RX結構的新方法。大多數近場WPT系統依賴於磁共振耦合（MRC），使用三維線圈或螺旋天線，這些通常體積龐大。因此，這在小型電子設備和生物醫學植入物的應用中帶來了技術困難。為了獲得緊湊的結構，印刷螺旋線圈（PSC）最近成為低剖面WPT系統的候選方案。然而，大多數使用PSC的MRC WPT系統在最大可達效率方面存在限制，這是由於供電方式的影響。感應供電限制了主發射（TX）/接收（RX）共振器的幾何尺寸，無法達到最大可達的無負載品質因數。本書將對從事WPT相關問題的研究人員和專業人士感興趣。

Sherif Hekal is currently an Assistant Professor at the Department of Electronics and Communications Engineering, Faculty of Engineering at Shoubra - Benha University, Cairo. He received his B.Sc. and M.Sc. degrees in Electrical Engineering from the same university in 2007 and 2012, respectively. He received his Ph.D. from the Egypt-Japan University of Science and Technology (E-JUST) in Electronics and Communications Engineering in 2016. As part of his PhD program, he spent time at the Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan. Dr. Hekal also worked as a communications engineer at Motorola Co. Ltd. and Nokia Siemens Networks in the field of 2G/3G RF optimization. His research interests include RF/microwave applications, antennas, wireless power transfer, and energy harvesting systems.
Dr. Ahmed Allam is currently an Associate Professor at the Department of Electronics and Communications Engineering, Egypt-Japan University of Science and Technology, Alexandria, Egypt. He received his B.Sc. in Electrical Engineering from Alexandria University, Egypt, and his M.Eng. and Ph.D. from the University of Alberta, Canada. From April 1994 to January 1998, he worked as an instrument engineer with Schlumberger. From May 2000 to September 2001, he was with Murandi Communications Ltd., Calgary, Alberta, where he worked on RF transceivers design. From April 2007 to April 2008, he worked on RF CMOS transceivers design at Scanimetrics Inc., Edmonton, Alberta. His research interests include the design of RF circuits and systems.
Adel B. Abdel-Rahman is currently a Professor at the Department of Electronics and Communications Engineering, Egypt-Japan University of Science and Technology, Alexandria, Egypt. He received his B.S. and M.S. in Electrical Engineering, Communication, and Electronics from Assiut University, Egypt, and his Dr.-Ing. degree in Communication Engineering from Otto von Guericke University, Germany in 2005. Since October 2006, he has been an Assistant Professor at the Electrical Engineering Department, South Valley University, Qena, Egypt. He has published more than 120 refereed journal and conference papers and has two patents. He was the Executive Director for Information and Communication Technology, South Valley University, from 2010-2012. Since October 2012, he joined the School of Electronics, Communications and Computer Engineering, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt, and has been the Dean of the Faculty of Computers and Information, South Valley University from 2016-2018. His research interests include the design and analysis of antennas, filters, millimeter-wave devices, WPT, and metamaterials and their application in wireless communication, as well as optimization techniques with applications to microwave devices and antenna arrays.
Ramesh K. Pokharel is a Professor in the Department of I&E Visionaries at Kyushu University. He received M.E. and PhD in Electrical Engineering from the University of Tokyo, Japan in 2000 and 2003, respectively. In April 2005, he joined the Graduate School of Information Science and Electrical Engineering, Kyushu University. He was the secretary of IEEE MTT-S Japan Society from Jan 2012 to Dec. 2013 and the deputy-chair of the Education committee of IEEE-MTT-S Japan Society from Jan. 2014 to Dec. 2017 and has been serving as the chair of the same committee since 2017. His current research interests include low cost RFIC and analog circuits for microwave and millimeter wave wireless communications, and on-chip meta-materials in CMOS.

Sherif Hekal 目前是開羅 Shoubra - Benha 大學電子與通信工程系的助理教授。他於 2007 年和 2012 年分別在同一所大學獲得電機工程的學士和碩士學位。2016 年，他在埃及-日本科技大學 (E-JUST) 獲得電子與通信工程的博士學位。在博士學位課程中，他曾在日本福岡的九州大學資訊科學與電氣工程學院學習。Hekal 博士曾在摩托羅拉有限公司和諾基亞西門子網絡擔任通信工程師，專注於 2G/3G 無線電頻率優化。他的研究興趣包括無線電頻率/微波應用、天線、無線電力傳輸和能量收集系統。

Dr. Ahmed Allam 目前是埃及-日本科技大學電子與通信工程系的副教授。他在埃及亞歷山大大學獲得電機工程學士學位，並在加拿大阿爾伯塔大學獲得碩士和博士學位。從 1994 年 4 月到 1998 年 1 月，他在施耐德公司擔任儀器工程師。從 2000 年 5 月到 2001 年 9 月，他在加拿大阿爾伯塔省卡爾加里的 Murandi Communications Ltd. 工作，專注於無線電頻率收發器設計。從 2007 年 4 月到 2008 年 4 月，他在阿爾伯塔省埃德蒙頓的 Scanimetrics Inc. 從事無線電頻率 CMOS 收發器設計。他的研究興趣包括無線電頻率電路和系統的設計。

Adel B. Abdel-Rahman 目前是埃及-日本科技大學電子與通信工程系的教授。他在埃及阿斯尤特大學獲得電機工程、通信和電子的學士和碩士學位，並於 2005 年在德國奧托·馮·古里克大學獲得通信工程的博士學位。自 2006 年 10 月以來，他一直是埃及南谷大學電機工程系的助理教授。他已發表超過 120 篇經過審核的期刊和會議論文，並擁有兩項專利。他曾於 2010 年至 2012 年擔任南谷大學資訊與通信技術的執行主任。自 2012 年 10 月以來，他加入埃及-日本科技大學 (E-JUST) 的電子、通信與計算機工程學院，並於 2016 年至 2018 年擔任南谷大學計算機與資訊學院的院長。他的研究興趣包括天線、濾波器、毫米波設備、無線電力傳輸 (WPT) 和超材料的設計與分析及其在無線通信中的應用，以及應用於微波設備和天線陣列的優化技術。

Ramesh K. Pokharel 是九州大學 I&E Visionaries 系的教授。他於 2000 年和 2003 年分別在日本東京大學獲得電機工程的碩士和博士學位。2005 年 4 月，他加入九州大學資訊科學與電氣工程研究所。他曾於 2012 年 1 月至 2013 年 12 月擔任 IEEE MTT-S 日本分會的秘書，並於 2014 年 1 月至 2017 年 12 月擔任該分會教育委員會的副主席，自 2017 年以來一直擔任該委員會的主席。他目前的研究興趣包括用於微波和毫米波無線通信的低成本 RFIC 和模擬電路，以及 CMOS 中的片上超材料。