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. 04, 2006
Filed:
Jul. 13, 2005
In-sang Song, Seoul, KR;
Song-cheol Hong, Daejeon, KR;
Sang-soo Ko, Iksan-si, KR;
Jeong-geun Kim, Gimpo-si, KR;
Hong-chan Kim, Buan-eup, KR;
In-sang Song, Seoul, KR;
Song-cheol Hong, Daejeon, KR;
Sang-soo Ko, Iksan-si, KR;
Jeong-geun Kim, Gimpo-si, KR;
Hong-chan Kim, Buan-eup, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A radar system using a quadrature signal includes a quadrature push—push oscillator for generating four harmonics with a 90-degree phase difference from each other, and producing two-balanced 2harmonic signals from the harmonics; a first coupler block for radiating one of the 2harmonics through an antenna; a second coupler block for terminating the other 2harmonic to ground; and a power combiner for combining a transmitted signal that is leaked from the first and second coupler blocks with the received signal that is radiated through the antenna. The radar system features an improved receiving sensitivity by offsetting the leakage signals of the sending end. Also, the radar system can be made very small by using a single antenna for transmitting and receiving.