The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
Aug. 24, 2020
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
Chengdu Tianma Micro-electronics Co., Ltd., Chengdu, CN;
Kerui Xi, Shanghai, CN;
Xuhui Peng, Shanghai, CN;
Feng Qin, Shanghai, CN;
Tingting Cui, Shanghai, CN;
Qinyi Duan, Chengdu, CN;
Qiongqin Mao, Shanghai, CN;
Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai, CN;
Chengdu Tianma Micro-Electronics Co., Ltd., Chengdu, CN;
Abstract
A phase shifter, a fabrication method thereof, and an antenna are provided. The phase shifter includes a first substrate, a second substrate, a ground electrode disposed on a side of the first substrate facing towards the second substrate, a transmission electrode disposed on a side of the second substrate facing towards the first substrate, and liquid crystals filled between the first substrate and the second substrate. In a direction perpendicular to a plane of the second substrate, the transmission electrode overlaps with the ground electrode. The ground electrode is provided with a detection hollow part, and in the direction perpendicular to the plane of the second substrate, at least a part of the detection hollow part does not overlap with the transmission electrode.