An Overview of Terahertz Antennas

作     者：Yejun He Yaling Chen Long Zhang Sai-Wai Wong Zhi Ning Chen Yejun He;Yaling Chen;Long Zhang;Sai-Wai Wong;Zhi Ning Chen

作者机构：Guangdong Engineering Research Center of Base Station Antennas and PropagationShenzhen Key Laboratory of Antennas and PropagationCollege of Electronics and Information EngineeringShenzhen UniversityShenzhen 518060China Department of Electrical and Computer EngineeringNational University of Singapore117583Singapore 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2020年第17卷第7期

页      面：124-165页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0839[工学-网络空间安全] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported in part by the National Natural Science Foundation of China(NSFC)under Grants No.61801299 and No.61372077 in part by the Shenzhen Science and Technology Program under Grants GJHZ 20180418190529516 and JSGG 20180507183215520。 

主　　题：sizes directions dielectric 

摘      要：The terahertz(THz)antennas,which have features of small size,wide frequency bandwidth and high data rate,are important devices for transmitting and receiving THz electromagnetic waves in the emerging THz systems.However,most of THz antennas suffer from relatively high loss and low fabrication precision due to their small sizes in high frequency bands of THz waves.Therefore,this paper presents a detailed overview of the most recent research on the performance improvement of THz antennas.Firstly,the development of THz antennas is briefly reviewed and the basic design ideas of THz antennas are introduced.Then,THz antennas are categorized as metallic antennas,dielectric antennas and new material antennas.After that,the latest research progress in THz photoconductive antennas,THz horn antennas,THz lens antennas,THz microstrip antennas and THz on-chip antennas are discussed.In particular,the practical difficulties for the development of THz antennas are discussed with promising approaches.In addition,this paper also presents a short review of the process technology of THz antennas.Finally,the vital challenges and the future research directions for THz antennas are presented.