Invention Grant
US07825868B2 Hand held reader antenna for RFID and tire pressure monitoring system
失效
用于RFID和轮胎压力监测系统的手持式读取器天线
- Patent Title: Hand held reader antenna for RFID and tire pressure monitoring system
- Patent Title (中): 用于RFID和轮胎压力监测系统的手持式读取器天线
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Application No.: US11764060Application Date: 2007-06-15
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Publication No.: US07825868B2Publication Date: 2010-11-02
- Inventor: Kazem F. Sabet , Kamal Sarabandi , Linda P. B. Katehi , Jiyoun Munn
- Applicant: Kazem F. Sabet , Kamal Sarabandi , Linda P. B. Katehi , Jiyoun Munn
- Applicant Address: US MI Ann Arbor
- Assignee: EMAG Technologies, Inc.
- Current Assignee: EMAG Technologies, Inc.
- Current Assignee Address: US MI Ann Arbor
- Agency: Miller IP Group, PLC
- Agent John A. Miller
- Main IPC: H01Q1/38
- IPC: H01Q1/38 ; H01Q21/00
Abstract:
An antenna assembly that has particular application for a hand held reader that interrogates sensors embedded within a vehicle tire, such as RFID sensors and tire pressure sensors. In one embodiment, the antenna assembly includes a first antenna operating in the 432-435 MHz range that employs a meander-line slot that provides increased antenna cross-polarization so that the sensor can be interrogated regardless of the antenna orientation and polarization. The antenna assembly also includes two RFID antennas that operate in the 902-928 MHz range that are planar antenna that make the antenna bi-directional, polarization free and a wide enough bandwidth for the RFID interrogation.
Public/Granted literature
- US20080309567A1 Hand Held Reader Antenna for RFID and Tire Pressure Monitoring System Public/Granted day:2008-12-18
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