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. 14, 2020
Filed:
Dec. 20, 2017
Rodolfo E. Diaz, Phoenix, AZ (US);
Mahkamehossadat Mostafavi, Tempe, AZ (US);
Rodolfo E. Diaz, Phoenix, AZ (US);
Mahkamehossadat Mostafavi, Tempe, AZ (US);
Arizona Board of Regents on behalf of Arlzona State University, Scottsdale, AZ (US);
Abstract
Broadband antennas are described that include a quad-ridge horn inside which two different lenses are inserted creating a broadband horn-lens combination. One of these lenses is a cross-polyrod lens, formed from a pair of polyrods disposed in a crossed arrangement, each polyrod shaped in a predetermined manner. The other one of these lenses is a prolate spheroidal lens. The broadband antennas can produce, at the output thereof, Gaussian-like beams in both principal polarizations from VHF to 20 GHz. As such, the broadband antennas can be used to perform material measurements in a compact admittance tunnel. Simulation results show that directivity of quad-ridge horns can be improved using the combination of lenses of the broadband antennas. Therefore, the broadband antennas can also be of interest for far-field radiation applications.