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.

Date of Patent:
Sep. 27, 2022

Filed:

Sep. 30, 2019
Applicant:

Purdue Research Foundation, West Lafayette, IN (US);

Inventors:

Ahmed Mahmoud Mahrous Abdelraheem, West Lafayette, IN (US);

Michael Dimitri Sinanis, West Lafayette, IN (US);

Dimitrios Peroulis, West Lafayette, IN (US);

Assignee:

Purdue Research Foundation, West Lafayette, IN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B 3/347 (2006.01); H05B 6/78 (2006.01); H05B 6/80 (2006.01); H05B 6/64 (2006.01);
U.S. Cl.
CPC ...
F26B 3/347 (2013.01); H05B 6/6447 (2013.01); H05B 6/78 (2013.01); H05B 6/806 (2013.01);
Abstract

A method of uniform RF-heating within a chamber is disclosed, which includes cyclically varying electromagnetic properties of a chamber according to a plurality of configuration, transmitting an alternating RF signal about a first frequency range between a first frequency and a second frequency from a transmitter into the chamber, measuring electromagnetic power at a random receiver location in the chamber for each of the plurality of configurations and at a predetermined resolution of frequency thereby generating a statistical distribution vs. frequency, applying a statistical test to the generated statistical distribution based on a predetermined statistical function, determining a standard deviation of the average received power as a function of frequency, choosing a third frequency range associated with a standard deviation lower than a second threshold, and choosing an operational frequency in the third frequency range which provides maximum heating depending on the material being heated.


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