Invention Grant
US07804455B2 Antenna apparatus for linearly polarized diversity antenna in RFID reader and method of controlling the antenna apparatus
失效
RFID读取器中的线性极化分集天线的天线装置及天线装置的控制方法
- Patent Title: Antenna apparatus for linearly polarized diversity antenna in RFID reader and method of controlling the antenna apparatus
- Patent Title (中): RFID读取器中的线性极化分集天线的天线装置及天线装置的控制方法
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Application No.: US11782195Application Date: 2007-07-24
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Publication No.: US07804455B2Publication Date: 2010-09-28
- Inventor: Jong Moon Lee , Nae-Soo Kim , Cheol Sig Pyo , Ik Guen Choi
- Applicant: Jong Moon Lee , Nae-Soo Kim , Cheol Sig Pyo , Ik Guen Choi
- Applicant Address: KR Daejeon KR Cheongju
- Assignee: Electronics and Telecommunications Reseach Institute,Chungbuk National University Industry-Academic Cooperation Foundation
- Current Assignee: Electronics and Telecommunications Reseach Institute,Chungbuk National University Industry-Academic Cooperation Foundation
- Current Assignee Address: KR Daejeon KR Cheongju
- Agency: Ladas & Parry LLP
- Priority: KR10-2006-0122546 20061205
- Main IPC: H01Q21/00
- IPC: H01Q21/00
Abstract:
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.
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