MOS TRANSISTOR BASED METASURFACE DEVICE FOR NONLINEAR RESPONSE MRI IMAGE ENHANCEMENT

WIPO Patent Application WO/2022/170752

A1

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.

ZHAO QIAN (CN)
CHI ZHONGHAI (CN)
MENG YONGGANG (CN)
ZHENG ZHUOZHAO (CN)
YI YI (CN)
WANG YAKUI (CN)

PCT/CN2021/113730

August 18, 2022

August 20, 2021

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UNIV TSINGHUA (CN)
BEIJING TSINGHUA CHANGGUNG HOSPITAL (CN)

A61B5/055; G01R33/38; G01R33/565

CN110638453A	2020-01-03
CN109490803A	2019-03-19
CN103296446A	2013-09-11
CN103296465A	2013-09-11
US20150123660A1	2015-05-07
CN109715061A	2019-05-03
CN210166480U	2020-03-20
CN209133359U	2019-07-19
US20070070578A1	2007-03-29

ACIP LAW OFFICES (CN)

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