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:
Aug. 16, 2005
Filed:
Nov. 19, 2002
Steven Robert Snyder, Palm Bay, FL (US);
Stephen B. Brown, Palm Bay, FL (US);
Raymond C. Rumpf, Melbourne, FL (US);
Brett Pigon, Palm Bay, FL (US);
James J. Rawnick, Palm Bay, FL (US);
Steven Robert Snyder, Palm Bay, FL (US);
Stephen B. Brown, Palm Bay, FL (US);
Raymond C. Rumpf, Melbourne, FL (US);
Brett Pigon, Palm Bay, FL (US);
James J. Rawnick, Palm Bay, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
Method and apparatus for producing a variable delay for an RF signal. The method can include the step of propagating the RF signal along an RF transmission line, coupling a fluidic dielectric to the RF transmission line, and dynamically changing a composition of the fluidic dielectric to selectively vary its permittivity in response to a time delay control signal. The method can also include the step of dynamically changing a composition of the fluidic dielectric to vary its permeability. The permittivity and the permeability can be varied concurrently in response to the time delay control signal. In a preferred embodiment the method can include selectively varying the permeability concurrently with the permittivity to maintain a characteristic impedance of the transmission line approximately constant.