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:
Dec. 16, 2025
Filed:
Oct. 25, 2022
Applicant:
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Inventors:
Assignee:
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 9/04 (2006.01);
U.S. Cl.
CPC ...
H01Q 9/0442 (2013.01); H01Q 9/045 (2013.01);
Abstract
A liquid crystal-based microstrip patch antenna for widening a frequency tuning range and miniaturizing a radiating unit are provided. The microstrip patch antenna includes at least one feeding unit, at least one radiating unit, a plurality of dielectric substrates including the feeding unit and the radiating unit and formed in a stack structure, a liquid crystal cavity interposed between the plurality of dielectric substrates stacked on each other, and at least one DC bias line to receive power from a power supply and to apply an electric field to the liquid crystal cavity through the radiating unit.