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:
Apr. 17, 2012
Filed:
Jan. 16, 2009
Jin Hao, Fox Point, WI (US);
Chang Thao, Milwaukee, WI (US);
Jin Hao, Fox Point, WI (US);
Chang Thao, Milwaukee, WI (US);
Badger Meter, Inc., Milwaukee, WI (US);
Abstract
An antenna () for installation in a subsurface ground enclosure has an F-shaped radiating element () having a rectangular strip () disposed on edge and two spaced apart bars () disposed substantially perpendicular to the rectangular strip () for connection to a first edge of a circuit board () and an L-shaped ground plane extension element () extending from a second edge () of the circuit board () and then turning substantially perpendicular downward to provide a longer ground plane within a confined rectangular space. The antenna () is dimensioned so as to be tuned to a resonant frequency in a range from 450 Mhz to 470 Mhz.