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:
Jun. 28, 2016
Filed:
Apr. 01, 2015
Hm Energy, Llc, Houston, TX (US);
Duke Loi, Frisco, TX (US);
HM Energy LLC, Houston, TX (US);
Abstract
A method and apparatus for packaging surface acoustic wave transponders for use in down-hole or other extreme environmental applications. An exemplary ID tag transponder may include a surface acoustic wave (SAW) piezoelectric device, wire bonds, antennae structure, an antenna reflector, a radome, and a base constructed of a conductive, non-magnetic metal or metal alloy adapted to withstand an extreme environment encountered in down-hole applications. The metallic base may have a notched lip or flange about its periphery that is adapted for pressure. An RF reflector is created inside an exemplary transponder tag device. A small amount of predetermined gas is held on top of the SAW piezoelectric device within the reflector cavity to accommodate acoustic wave propagation therein. Exemplary components of a transponder tag are enclosed and hermetically sealed within and between a radome top portion and the metallic base bottom portion.