公开(公告)号：US11011817B2

公开(公告)日：2021-05-18

申请号：US16703864

申请日：2019-12-05

Applicant: Tsinghua University

Inventor： Xiao-Ping Zheng ,  Xia-Hui Han ,  Sheng-Chuang Bai ,  Hua Geng ,  De-Jian Zhang ,  Jia-Ming Liu

IPC: H01P5/08 ,  H01P5/107 ,  H01Q13/28 ,  H01Q13/26

Abstract: The present disclosure provides a waveguide-excited terahertz microstrip antenna. The antenna includes a dielectric substrate, a ground plate, a rectangular waveguide, a metal pin, and a radiation patch. The dielectric substrate has a first surface and a second surface opposite to the first surface. The ground plate is located on the first surface of the dielectric substrate and defines a coupling slit. The rectangular waveguide is located on a surface of the ground plate away from the dielectric substrate and extended substantially along a first direction parallel to the first surface. The metal pin is located inside the rectangular waveguide, and is in contact with the ground plate and substantially perpendicular to the ground plate. The radiation patch is located on the second surface of the dielectric substrate.

公开(公告)号：US10739252B2

公开(公告)日：2020-08-11

申请号：US16438462

申请日：2019-06-11

Applicant: Tsinghua University

Inventor： Xiao-Ping Zheng ,  Xia-Hui Han ,  Hua Geng ,  Sheng-Chuang Bai ,  Xiao-Jiao Deng

IPC: G01N21/3581 ,  H01Q5/22 ,  G01N21/25 ,  H01Q1/22 ,  H01Q21/00 ,  H01Q21/06

Abstract: The present application relates to a terahertz transmitting antenna including a microstrip feed line, a substrate, at least two antenna switches, at least one conducting plate, an insulating layer and at least two antenna patches. The terahertz transmitting antenna is provided with at least two antenna switches and at least two corresponding antenna patches, which substantially increases a transmitting bandwidth and a corresponding transmitting power of the terahertz transmitting antenna. The terahertz transmitting antenna with the increased transmitting bandwidth and the increased transmitting power can be applied to a small sized terahertz spectral detection device to assist the transmitting source to transmit the signal in the terahertz band. The terahertz transmitting antenna adopting the multi-frequency switching technology can reduce an operation time of a spectral fingerprint recognition algorithm to rapid identify specific target substances.