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.

Date of Patent:
Aug. 21, 2012

Filed:

Dec. 18, 2009
Applicants:

Sung-chan Jung, Changwon, KR;

Su-kyum Kim, Changwon, KR;

Young-goo Yang, Suwon, KR;

Inventors:

Sung-chan Jung, Changwon, KR;

Su-kyum Kim, Changwon, KR;

Young-goo Yang, Suwon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method for removing a transmission leakage signal are provided. The apparatus includes: a directional coupler connecting an antenna to a transmission path and a reception path; and a reflection coefficient adjustment unit outputting a reflection signal to the reception path, the reflection signal having the same amplitude as and opposite phase to a first transmission leakage signal generated from the transmission path and input to the reception path and a second transmission leakage signal reflected by the antenna and input to the reception path.


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