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:
Jan. 09, 2018
Filed:
Mar. 26, 2014
Tokyo Keiki Inc., Tokyo, JP;
TOKYO KEIKI INC., Tokyo, JP;
Abstract
A radar level gauge using electromagnetic signals is provided, which includes a connection arrangement for connecting a transmitter receiver circuit board and an antenna unit with one another, with which the horizontal size of the radar level gauge may be reduced and reflection and transmission losses may be suppressed as well. The transmitter receiver circuit boardis so disposed in a housingas to extend vertically. The connection arrangement includes a waveguide sequence which is fed at a feed terminalformed on the transmitter receiver circuit boardand composed of three waveguides Wto W. Specifically, the waveguide sequence includes, in sequential order from the transmitter receiver circuit board to the antenna unit: a circular waveguide Wextending horizontally and perpendicular to the transmitter receiver circuit board; a rectangular waveguide Win connection with the circular waveguide Wand extending vertically; and a second circular waveguide Wfurther in connection with the rectangular wave guide Wand extending vertically.