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. 26, 2019
Filed:
May. 01, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Timothy J. Talty, Beverly Hills, MI (US);
Keerti S. Kona, Woodland Hills, CA (US);
Amit M. Patel, Santa Monica, CA (US);
Hyok Jae Song, Oak Park, CA (US);
James H. Schaffner, Chatsworth, CA (US);
Duane S. Carper, Davison, MI (US);
Eray Yasan, Canton, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A thin film, flexible antenna that has particular application to be adhered to vehicle glass, where the antenna is operable to receive right-hand or left-hand circularly polarized signals from, for example, GPS and SDARS satellites. The antenna is a printed planar antenna formed to the substrate and includes a ground plane having an outer perimeter portion defining a slot therein and having a plurality of sides. A T-line tuning stub extends from one of the sides into the slot, a curved spur-line tuning stub extends from a corner where two sides of the perimeter portion meet and extends into the slot, and a radiating element electrically isolated from the perimeter portion extends into the slot. The perimeter portion is operable to generate circularly polarized signals to be received by the radiating element where the tuning stubs provide phase tuning of the circularly polarized signals.