发明申请
US20080129641A1 ANTENNA APPARATUS FOR LINEARLY POLARIZED DIVERSITY ANTENNA IN RFID READER AND METHOD OF CONTROLLING THE ANTENNA APPARATUS
失效
RFID读取器中线性极化多极天线的天线装置及天线装置的控制方法
- 专利标题： ANTENNA APPARATUS FOR LINEARLY POLARIZED DIVERSITY ANTENNA IN RFID READER AND METHOD OF CONTROLLING THE ANTENNA APPARATUS
- 专利标题（中）： RFID读取器中线性极化多极天线的天线装置及天线装置的控制方法
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申请号： US11782195申请日： 2007-07-24
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公开(公告)号： US20080129641A1公开(公告)日： 2008-06-05
- 发明人: Jong Moon LEE , Nae-Soo KIM , Cheol Sig PYO , Ik Guen CHOI
- 申请人： Jong Moon LEE , Nae-Soo KIM , Cheol Sig PYO , Ik Guen CHOI
- 优先权： KR10-2006-0122546 20061205
- 主分类号： H01Q21/29
- IPC分类号： H01Q21/29
摘要：
Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.