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.

Date of Patent:
Sep. 08, 2020

Filed:

Mar. 10, 2014
Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Nader Behdad, Madison, WI (US);

Susan C. Hagness, Madison, WI (US);

Hung Thanh Luyen, Madison, WI (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 18/18 (2006.01); H01Q 9/42 (2006.01); A61B 18/00 (2006.01);
U.S. Cl.
CPC ...
A61B 18/1815 (2013.01); H01Q 9/42 (2013.01); A61B 2018/00529 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/1846 (2013.01); A61B 2018/1853 (2013.01); A61B 2018/1892 (2013.01);
Abstract

An antenna system is provided. The antenna system includes a coaxial cable, an antenna, and an impedance matching structure. The coaxial cable includes a center conductor extending a length of the coaxial cable, a dielectric material surrounding the center conductor along the length of the coaxial cable, and a conductive shield surrounding the dielectric material along the length of the coaxial cable. The antenna includes a conductor having an electrical length of half a wavelength at a selected operating frequency. The impedance matching structure includes a second center conductor mounted between an end of the center conductor of the coaxial cable and a feed end of the antenna. The impedance matching structure is configured to match an impedance of the coaxial cable to an impedance of the antenna.


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