To address the current national emergency, U.S. entities may be eligible to license select Sandia intellectual property at no cost for a limited time. Learn more.

Search/Browse Tech

Attenuation of spurious responses in electromechanical filters

United States Patent

To discuss licensing opportunities, fill out our Contact Form 
April 10, 2018
View the Complete Patent at the US Patent & Trademark Office
A spur cancelling, electromechanical filter includes a first resonator having a first resonant frequency and one or more first spurious responses, and it also includes, electrically connected to the first resonator, a second resonator having a second resonant frequency and one or more second spurious responses. The first and second resonant frequencies are approximately identical, but the first resonator is physically non-identical to the second resonator. The difference between the resonators makes the respective spurious responses different. This allows for filters constructed from a cascade of these resonators to exhibit reduced spurious responses.
March 17, 2016
H03H 9/02 (20060101); H03H 9/54 (20060101); H03H 9/46 (20060101); H03H 9/64 (20060101);
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.