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:
Jul. 04, 1995
Filed:
Mar. 13, 1992
John D Osburn, Austin, TX (US);
Patrick A Tobola, Austin, TX (US);
The Electro-Mechanics Company, Austin, TX (US);
Abstract
A transverse electromagnetic (TEM) cell for measuring EM emissions. The TEM cell longitudinal axis is positioned at a fixed angle relative to the horizontal. This fixed angle results in the alignment of the orthoaxis of the TEM cell with the gravity vector. A rotatable platform for supporting an electronic device is positioned inside the TEM cell. The platform is mounted horizontally, and its axis of rotation is vertical (i.e. parallel to the gravity vector). Further, the rotation axis of the rotatable platform intersects the test volume of the TEM cell. Three mutually orthogonal components of EM emissions are measured successively by placing a device on the platform and rotating the device through two 120 degree rotations, thereby measuring three positions. Thus, it is not necessary to tilt the device from a normal, horizontal operating position in order to fully test its EM emissions.