RTD太赫兹探测器与片上天线的匹配技术  

Matching technology of resonant tunneling diode terahertz detector and on-chip antenna

作　　者：吕佳琦 苏娟 谭为[1,2] LYU Jiaqi;SU Juan;TAN Wei(Microsystem and Terahertz Research Center,China Academy of Engineering Physics,Chengdu Sichuan 610200,China;Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang Sichuan 621999,China)

机构地区：[1]中国工程物理研究院微系统与太赫兹研究中心,四川成都610200 [2]中国工程物理研究院电子工程研究所,四川绵阳621999

出　　处：《太赫兹科学与电子信息学报》2024年第8期828-834,共7页Journal of Terahertz Science and Electronic Information Technology

摘　　要：高信息传输速率和大带宽容量的太赫兹通信被认为是实现6G的关键技术,这需要高效、稳定和紧凑的太赫兹源和探测器。为提升探测性能,研究了一种共振隧穿二极管(RTD)与缝隙天线片上集成的准光式太赫兹探测器。针对电路的高频损耗和寄生效应问题,采用协同考虑阻抗匹配因子和天线辐射效率的设计准则,设计了0.67 THz的小偏压RTD偏馈式探测器。采用高频结构仿真器(HFSS)和先进设计系统(ADS)软件联合仿真表征其探测性能,当输入功率为-30 dBm时,该探测器在0.67 THz的电流灵敏度达2.349 A/W,相比微波段采用阻抗匹配因子最大的设计准则,灵敏度提升了28.01%。Terahertz communication with high information transmission rate and large bandwidth capacity is considered as a key technology to achieve 6G communication,which requires efficient,stable and compact terahertz sources and detectors.In order to improve the detection performance,the quasioptical terahertz detector based on integration of Resonant Tunneling Diode(RTD) and on-chip slot antenna is studied.Aiming at the problems of increased loss and parasitic effects of the circuit at high frequencies,a design criterion that jointly considers impedance match factor and antenna radiation efficiency is proposed,and a RTD detector at a small bias voltage is designed at 0.67 THz.The detection performance is characterized by co-simulating of High Frequency Structure Simulator(HFSS) and Advanced Design System(ADS).The current sensitivity of the detector at 0.67 THz is about 2.349 A/W at the input power of-30 dBm.Compared with the design scheme of maximizing impedance match factor at microwave frequencies,the sensitivity is increased by 28.01%.

关 键 词：太赫兹探测器 共振隧穿二极管 缝隙天线 阻抗匹配 

分 类 号：TN82[电子电信—信息与通信工程]