Novel Broadband Slot-Spiral Antenna for Terahertz Applications

被引：7
|
作者：
Huang, Zhen [1 ,2 ]
Li, Zhaofeng [1 ,3 ,4 ]
Dong, Hui [1 ,5 ]
Yang, Fuhua [3 ,4 ,6 ]
Yan, Wei [1 ]
Wang, Xiaodong [1 ,3 ,4 ,7 ,8 ]
机构：
[1] Chinese Acad Sci, Engn Res Ctr Semicond Integrated Technol, Inst Semicond, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[4] Univ Chinese Acad Sci, Sch Microelect, Beijing 100049, Peoples R China
[5] Univ Sci & Technol China, Dept Elect Sci & Technol, Hefei 230026, Peoples R China
[6] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
[7] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
[8] Beijing Engn Res Ctr Semicond Micronano Integrate, Beijing 100083, Peoples R China
来源：
PHOTONICS | 2021年 / 8卷 / 04期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
terahertz detector; broadband antenna; slot-spiral; high-electron-mobility transistor; antenna design; responsivity; FIELD-EFFECT TRANSISTOR; DETECTOR; RADIATION; ENHANCEMENT; WAVE;
D O I：
10.3390/photonics8040123
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a novel broadband slot-spiral antenna that can be integrated with high-electron-mobility transistor (HEMT) terahertz (THz) detectors. The effect of various antenna parameters on the transmission efficiency of the slot-spiral structure at 150-450 GHz is investigated systematically. The performances of the slot-spiral antenna and the spiral antenna both integrated with HEMTs are compared. The results show that the slot-spiral structure has a better transmission and miniaturization capability than the spiral structure. A formula for the responsivity is derived based on the transmission line principle and antenna theory, and results show that the detector responsivity is correlated with the antenna absorptivity. Additionally, guidelines for HEMT THz detector design are proposed. The results of this study indicate the excellent application prospects of the slot-spiral antenna in THz detection and imaging.
引用
收藏
页数：13
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