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:
Nov. 15, 2011
Filed:
Aug. 18, 2008
James H. Schaffner, Chatsworth, CA (US);
Tsung-yuan Hsu, Westlake Village, CA (US);
Daniel F. Sievenpiper, Santa Monica, CA (US);
James H. Schaffner, Chatsworth, CA (US);
Tsung-Yuan Hsu, Westlake Village, CA (US);
Daniel F. Sievenpiper, Santa Monica, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
An antenna having an impedance matching section for attaching to a sheet or a garment. The antenna has a first, a second, and a third leaky substantially coaxial conductor. The first and the third coaxial conductors have an electrically conductive layer placed on the dielectric in a double helix. The second coaxial conductor has an electrically conductive layer placed on the dielectric in a single helix. The first coaxial conductor is coupled to the second coaxial conductor, the second coaxial conductor is coupled to the third coaxial conductor; and the third coaxial conductor is coupled in use to a first termination impedance. Methods to make the foregoing structures are also described.