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:
Feb. 10, 2015
Filed:
Nov. 19, 2013
Applicant:
Harris Corporation, Melbourne, FL (US);
Inventors:
Andrew Mui, Rochester, NY (US);
Anthony C. Manicone, Rochester, NY (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H03H 21/00 (2006.01); H03H 11/12 (2006.01); H04B 1/04 (2006.01); H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
H03H 21/0007 (2013.01); H03H 11/1213 (2013.01); H04B 1/0475 (2013.01); H04B 1/10 (2013.01);
Abstract
An electronic device includes an adjustable filter with a first filter element, and a second filter element coupled to the first filter element. The second filter element includes a field effect transistor (FET) including a source terminal, a drain terminal, and a gate terminal. The source terminal and the gate terminal are coupled to a reference voltage. A control circuit is coupled to the drain terminal and is configured to apply a control voltage thereto to vary a capacitance between the source and drain terminals to adjust the adjustable filter.