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:
Jul. 01, 2014
Filed:
Nov. 03, 2011
Hong-yeol Lee, Cheongju-si, KR;
Man-seok Uhm, Daejeon-si, KR;
So-hyeun Yun, Daejeon-si, KR;
In-bok Yom, Daejeon-si, KR;
Hong-Yeol Lee, Cheongju-si, KR;
Man-Seok Uhm, Daejeon-si, KR;
So-Hyeun Yun, Daejeon-si, KR;
In-Bok Yom, Daejeon-si, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A butler matrix and a multi-port amplifier having the same, capable of splitting a single input signal into N-signals or combining N-signals into a single output are provided. The hybrids are provided in a predetermined disposition, the input port and the output port of the hybrids are provided in a predetermined direction and the waveguides are provided in a bended structure such that paths for connecting the hybrids have no crossing portion.