红外与毫米波学报2026，Vol.45Issue(3)：385-392,8.DOI:10.11972/j.issn.1001-9014.2026.03.005
一种基于3D打印透镜封装的宽带太赫兹准光探测器
A broadband terahertz quasi-optical detector based on 3D-printed lens packaging
摘要
Abstract
A broadband terahertz(THz)quasi-optical detector based on 3D-printed lens packaging has been pre-sented,covering two typical atmospheric windows at 220 GHz and 340 GHz.The detector consists of an antenna-coupled detector chip and a 3D-printed lens.The chip was packaged on a multi-layer dielectric laminate,with a Schottky diode directly integrated across the feeding terminals of the on-chip antenna.The on-chip integrated broadband planar bowtie antenna was printed on a quartz substrate within the operation frequency range of 201-360 GHz,functioning as a radiator and a radio frequency(RF)choke.Bandwidth enhancement is achieved using a pair of capacitively loaded loops(CLLs)without increasing the antenna size.High-impedance folded low-fre-quency(LF)leads are incorporated to suppress high-frequency signal leakage.A lightweight,low-cost 3D-print-ed lens combined with an embedded metallized reflector enables unidirectional radiation and improved mechanical robustness.The detector achieves a maximum voltage responsivity of 2200 V/W over 200-230 GHz and 1885 V/W over 320-350 GHz.Measured radiation patterns agree well with simulations.关键词
太赫兹(THz)准光探测器/宽带/集成化蝶形天线/3D打印透镜/肖特基二极管Key words
terahertz(THz)quasi-optical detector/broadband/integrated bowtie antenna/3D-printed lens/Schottky diode分类
信息技术与安全科学引用本文复制引用
王兵,李明迅,吕昕..一种基于3D打印透镜封装的宽带太赫兹准光探测器[J].红外与毫米波学报,2026,45(3):385-392,8.基金项目
Supported by the Natural Science Foundation of China(61527805) （61527805）
