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.
Patent No.:
Date of Patent:
Nov. 02, 2010
Filed:
Jun. 15, 2007
Kazem F. Sabet, Ann Arbor, MI (US);
Kamal Sarabandi, Ann Arbor, MI (US);
Linda P. B. Katehi, Zionsville, IN (US);
Jiyoun Munn, Ann Arbor, MI (US);
Kazem F. Sabet, Ann Arbor, MI (US);
Kamal Sarabandi, Ann Arbor, MI (US);
Linda P. B. Katehi, Zionsville, IN (US);
Jiyoun Munn, Ann Arbor, MI (US);
EMAG Technologies, Inc., Ann Arbor, MI (US);
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.