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:
Dec. 13, 1994
Filed:
May. 14, 1993
Edward E Aslan, Plainview, NY (US);
The Narda Microwave Corp., Hauppauge, NY (US);
Abstract
A personal electromagnetic radiation monitor includes an electromagnetic radiation sensor in the form of at least one coil mounted on a rectangular form of lossy material. A first metal shield plate is situated adjacent to one side of the form on which the coil is mounted, and a second metal shield plate is situated on another side of the form. The metal shield plates have an impedance which varies substantially inversely proportional with the frequency of electromagnetic radiation sensed by the coil, and compensate for the variation in the magnitude of the induced current in the coil, which induced current, without at least one of the shields, would have varied in magnitude substantially directly proportional with the frequency of the electric field component of the electromagnetic radiation, so that the magnitude of an output signal generated by the sensor is relatively independent of the frequency of the sensed electromagnetic radiation.