发明申请
US20080309578A1 Antenna Using Proximity-Coupling Between Radiation Patch and Short-Ended Feed Line, Rfid Tag Employing the Same, and Antenna Impedance Matching Method Thereof
审中-公开
使用辐射贴片和短路馈线之间的接近耦合的天线，使用它的Rfid标签和天线阻抗匹配方法
- 专利标题： Antenna Using Proximity-Coupling Between Radiation Patch and Short-Ended Feed Line, Rfid Tag Employing the Same, and Antenna Impedance Matching Method Thereof
- 专利标题（中）： 使用辐射贴片和短路馈线之间的接近耦合的天线，使用它的Rfid标签和天线阻抗匹配方法
-
申请号： US12162069申请日： 2007-02-01
-
公开(公告)号： US20080309578A1公开(公告)日： 2008-12-18
- 发明人: Hae-Won Son , Won-Kyu Choi , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
- 申请人： Hae-Won Son , Won-Kyu Choi , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
- 申请人地址： KR Daejon
- 专利权人： Electronics and Telecommunications Research Institute
- 当前专利权人： Electronics and Telecommunications Research Institute
- 当前专利权人地址： KR Daejon
- 优先权： KR10-2006-0009707 20060201; KR10-2006-0129962 20061219
- 国际申请： PCT/KR2007/000552 WO 20070201
- 主分类号： H01Q1/38
- IPC分类号： H01Q1/38 ; H01Q1/50 ; G08B13/14
摘要：
Provided is an antenna based on proximity coupling between a short-ended microstrip feed line and a radiation patch, an RFID tag including the planar antenna, and an antenna impedance matching method thereof. The antenna includes a radiation patch configured to determine a resonant frequency of the antenna; a ground plate disposed in parallel to the radiation patch; and a feeding part disposed between the radiation patch and the ground plate and configured to provide radio frequency signals to a device connected to the antenna. The feeding part includes a feed line that is formed in a resonance length direction of the radiation patch and proximity-coupled with the radiation patch and one end of the feed line is shorted. The antenna freely controls the resistance and reactance of the antenna impedance independently and efficiently matched to a device connected to the antenna which has a predetermined impedance in wide bands.
信息查询
