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:
Mar. 29, 2011
Filed:
Jan. 29, 2009
Applicants:
Yunchi Zhang, Meriden, CT (US);
Michael Joseph Adkins, Fruitland, MD (US);
Inventors:
Yunchi Zhang, Meriden, CT (US);
Michael Joseph Adkins, Fruitland, MD (US);
Assignee:
Radio Frequency Systems, Inc., Meridan, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
Various exemplary embodiments include a technique for tuning a filter to have two stop bands. This technique may involve combination of signals from a plurality of high-band notch resonators and low-band notch resonators. Loop wires may couple both high-band and low-band notch resonators to a central conductor, thereby enabling the central conductor to transmit a signal having dual stop bands.