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:
May. 01, 2018
Filed:
Aug. 11, 2015
Murata Manufacturing Co., Ltd., Kyoto, JP;
Yoshihiro Ito, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A sensor tag () includes a crystal vibrator () and an antenna (). The antenna () is composed of a radiating conductor () and connection conductors (). A crystal vibrator () is mounted on land conductors () provided at an end portion of the connection conductors () on the opposite side to the antenna (). The antenna () is formed in a shape such that an amount of shift (ΔF) of a radiation frequency of the sensor tag () falls within an acceptable range in accordance with a resonant frequency (Fxs) and an equivalent inductance (Lxs) of the crystal vibrator () and a self-resonant frequency (Fant) and an equivalent inductance (Lant) of the antenna ().