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:
Apr. 07, 2015
Filed:
Nov. 16, 2012
Hiroto Ado, Tokyo, JP;
Shuji Nuimura, Tokyo, JP;
Tomohiro Mizuno, Tokyo, JP;
Hidenori Yukawa, Tokyo, JP;
Tetsu Owada, Tokyo, JP;
Takaaki Kimata, Tokyo, JP;
Hiroto Ado, Tokyo, JP;
Shuji Nuimura, Tokyo, JP;
Tomohiro Mizuno, Tokyo, JP;
Hidenori Yukawa, Tokyo, JP;
Tetsu Owada, Tokyo, JP;
Takaaki Kimata, Tokyo, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Abstract
A polarization coupler includes: connector waveguide that connects circular waveguide with quadrangular waveguide arranged in an axial direction of circular waveguide and having short side shorter than an inner diameter of circular waveguide; flat conductor wall formed over connector and circular waveguides, and dividing the inside of connector and circular waveguides arranged parallel to an extending direction of long side of quadrangular waveguide; first inclined surface formed on inner wall of connector waveguide at a position facing one surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; second inclined surface formed on the inner wall of connector waveguide at a position facing the other surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; and coupling hole, formed in circular waveguide, for extracting one polarization-divided by conductor wall out of electromagnetic waves propagated through circular waveguide.