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:
Apr. 07, 2009

Filed:

May. 26, 2006
Applicants:

Sang-wook Kwon, Seongnam-si, KR;

Song-cheol Hong, Daejeon, KR;

In-sang Song, Seoul, KR;

Dong-kyun Kim, Suwon-si, KR;

Jeong-geun Kim, Gimpo-si, KR;

Inventors:

Sang-wook Kwon, Seongnam-si, KR;

Song-cheol Hong, Daejeon, KR;

In-sang Song, Seoul, KR;

Dong-kyun Kim, Suwon-si, KR;

Jeong-geun Kim, Gimpo-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A radar system includes a transmitter stage for generating a certain transmission signal; a circularly polarized antenna for emitting the transmission signal in a form of a circularly polarized signal, and receiving a reflection signal; a polarizer for isolating the reflection signal received from the circularly polarized antenna from the transmission signal, and outputting the reflection signal to a next stage; and a receiver stage for receiving the reflection signal output from the polarizer, converting the reflection signal into a signal of a certain frequency by using as a certain mixer switching signal the leakage signal leaking from the transmitter stage, and outputting the converted reflection signal. Therefore, the high-sensitivity radar system can be built in a compact size.


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