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:
Dec. 30, 2008
Filed:
Dec. 14, 2006
Chul-soo Kim, Hwaseong-si, KR;
Dal Ahn, Asan-si, KR;
Kwi-soo Kim, Asan-si, KR;
In-sang Song, Seoul, KR;
Yun-kwon Park, Dongducheon-si, KR;
Seok-chul Yun, Yongin-si, KR;
Kuang-woo Nam, Yongin-si, KR;
Chul-soo Kim, Hwaseong-si, KR;
Dal Ahn, Asan-si, KR;
Kwi-soo Kim, Asan-si, KR;
In-sang Song, Seoul, KR;
Yun-kwon Park, Dongducheon-si, KR;
Seok-chul Yun, Yongin-si, KR;
Kuang-woo Nam, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A balun capable of a reduced whole size. The balun includes an input line receiving an unbalanced signal, an output line receiving the unbalanced signal from the input line and outputting a balanced signal, and a ground part. The input and output lines are formed on a layer, and the ground part is formed on a different layer from the layer. The ground part includes an opening and is electrically connected to the input line, and a portion of the ground part is removed to form the opening so that a potential difference occurs between first and second output lines. Thus, although a length of the output line is less than ¼ of an input wavelength λ, a difference between phases of first and second output signals can be about 180°. As a result, the whole size of the balun can be reduced.