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:
Jun. 23, 2026
Filed:
Dec. 20, 2022
Yokowo Co., Ltd., Tokyo, JP;
Hirotoshi Mizuno, Gunma, JP;
Kazuhiro Kowaita, Gunma, JP;
YOKOWO CO., LTD., Tokyo, JP;
Abstract
Provided is an antenna that suppresses increase in passing loss when phase-shifting signals input from an antenna element throughout a wide frequency band. The antenna includes a power feeding circuitthat converts four input signals input with phase differences different by 90 degrees from an antenna element so that the four input signals have a same phase and outputs them as one combined signal from an output terminal s. The power feeding circuitincludes a first phase circuit portionA that phase-shifts the four input signals and combines them two by two to output two first combined signals, and a second phase circuit portionB that phase-shifts each of the two first combined signals by 90 degrees by reversing a shift direction to combine the two first combined signals. The second phase circuit portionB includes cascade-type phase shiftersin which two 45 degrees phase-shifters or three 30 degrees phase shifters are connected in series.