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:
Sep. 13, 2005
Filed:
May. 29, 2003
Applicants:
Ramamurthy Ramprasad, Phoenix, AZ (US);
Michael F. Petras, Phoenix, AZ (US);
Inventors:
Ramamurthy Ramprasad, Phoenix, AZ (US);
Michael F. Petras, Phoenix, AZ (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P001/20 ;
U.S. Cl.
CPC ...
Abstract
A microwave filter is formed from an electromagnetic band gap structure. The electromagnetic band gap structure includes a periodic array of metal features () formed within a dielectric matrix (). A defect feature () is formed within the periodic array of metal features () in order to create a pass band within a stop band region.