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. 26, 2016
Filed:
Oct. 25, 2012
Applicant:
Mesaplexx Pty Ltd, Eight Mile Plains, AU;
Inventors:
David Robert Hendry, Brisbane, AU;
Steven John Cooper, Brisbane, AU;
Peter Blakeborough Kenington, Chepstow, GB;
Assignee:
MESAPLEXX PTY LTD, Eight Mile Plains, Queensland, AU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 1/208 (2006.01); H01P 7/10 (2006.01);
U.S. Cl.
CPC ...
H01P 1/2082 (2013.01); H01P 7/105 (2013.01);
Abstract
The present invention provides a multi-mode cavity filter in which signals are coupled to or from a resonator body, using a coupling path with first and second portions arranged such that current flows in opposite directions and the couplings due to the magnetic fields generated partially cancel one another. In this way, the degree of coupling to any particular mode of the filter can be closely controlled by varying the length and/or orientation of the portions with respect to each other.