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Patent Searching and Data


Title:
MOS TRANSISTOR BASED METASURFACE DEVICE FOR NONLINEAR RESPONSE MRI IMAGE ENHANCEMENT
Document Type and Number:
WIPO Patent Application WO/2022/170752
Kind Code:
A1
Abstract:
A magnetic field enhancement assembly and a magnetic field enhancement device. The magnetic field enhancement assembly comprises a first dielectric layer (100), a first electrode layer (110), a second electrode layer (120), and a fourth control circuit (600); the first dielectric layer (100) has a first surface (101) and has a first end (103) and a second end (104) that are oppositely provided; the first electrode layer (110) is provided on the first surface (101) and is provided close to the second end (104); the second electrode layer (120) is provided on the first surface (101), is spaced apart from the first electrode layer (110), and is provided close to the first end (103); the fourth control circuit (600) has one end connected to the end of the second electrode layer (120) away from the first end (103), and the other end connected to the end of the first electrode layer (110) away from the second end (104); and the fourth control circuit (600) is used for controlling the first electrode layer (110) and the second electrode layer (120) to be disconnected in a radio frequency transmitting stage and to be connected in a radio frequency receiving stage.

Inventors:
ZHAO QIAN (CN)
CHI ZHONGHAI (CN)
MENG YONGGANG (CN)
ZHENG ZHUOZHAO (CN)
YI YI (CN)
WANG YAKUI (CN)
Application Number:
PCT/CN2021/113730
Publication Date:
August 18, 2022
Filing Date:
August 20, 2021
Export Citation:
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Assignee:
UNIV TSINGHUA (CN)
BEIJING TSINGHUA CHANGGUNG HOSPITAL (CN)
International Classes:
A61B5/055; G01R33/38; G01R33/565
Foreign References:
CN110638453A2020-01-03
CN109490803A2019-03-19
CN103296446A2013-09-11
CN103296465A2013-09-11
US20150123660A12015-05-07
CN109715061A2019-05-03
CN210166480U2020-03-20
CN209133359U2019-07-19
US20070070578A12007-03-29
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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