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. 19, 2025
Filed:
May. 04, 2022
Board of Trustees of Michigan State University, East Lansing, MI (US);
Jeffrey Nanzer, Okemos, MI (US);
Corwin Hilton, East Lansing, MI (US);
Neda Nourshamsi, Fairfax, VA (US);
Board of Trustees of Michigan State University, East Lansing, MI (US);
Abstract
The harmonic tag includes a ring resonator circuit and may include a first ring microstrip disposed on a first side of a first dielectric substrate, a microstrip feedline spaced apart from and adjacent to the first ring microstrip and a ground plane disposed opposite the first ring microstrip and the microstrip feedline on a second side of the first dielectric substrate. The ring resonator circuit is tuned to resonate at an interrogation frequency. A dipole antenna circuit may include a dipole microstrip electrically coupled to the microstrip feedline through a first diode. The first diode causes the dipole microstrip to transmit a harmonic signal having a harmonic frequency twice the interrogation frequency.