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:
Jul. 03, 2012
Filed:
Mar. 15, 2010
Applicants:
Oliver Paul Leisten, Northampton, GB;
Andrew Robert Christie, Northampton, GB;
Thomas Alan Clupper, Landenberg, PA (US);
John J Squires, Elkton, MD (US);
Inventors:
Oliver Paul Leisten, Northampton, GB;
Andrew Robert Christie, Northampton, GB;
Thomas Alan Clupper, Landenberg, PA (US);
John J Squires, Elkton, MD (US);
Assignee:
Sarantel Limited, Wellingborough, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.