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:
May. 22, 2018
Filed:
May. 20, 2014
Japan Radio Co., Ltd., Tokyo, JP;
Keiichi Natsuhara, Tokyo, JP;
Katsuyoshi Ishida, Tokyo, JP;
Kazuaki Yoshida, Tokyo, JP;
Kiyomi Okawa, Tokyo, JP;
Hiroshi Itoh, Tokyo, JP;
Takeshi Oga, Tokyo, JP;
Kazufumi Igarashi, Tokyo, JP;
JAPAN RADIO CO., LTD., Tokyo, JP;
Abstract
A feed line in the form of a trip late line that runs from a waveguide/triplate-line converter coupled to a radio to a plurality of patch antennas in a cluster pattern. The width and length of a section of said feed line between the waveguide/triplate-line converter and the branch point nearest thereto are set such that the impedance of said section directly matches the parallel combination of the impedances of branches beyond said branch point and the loss in said section is kept to or below a predetermined upper limit.