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:
Dec. 30, 1997
Filed:
May. 08, 1996
Dennis A Burrell, Bedford, TX (US);
James Talmage Davis, II, Fort Worth, TX (US);
Mauricio Flores, Lake Worth, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A microstrip antenna (10) comprises a planar antenna radiating element (12) having at least a first major surface and a ground plane having a first major surface (16), a second major surface (18), and a third major surface (20) substantially parallel to each other. A dielectric material (14) is positioned between the planar antenna radiating element and the ground plane. The microstrip antenna further includes a first gap (36) between the first major surface (18) of the ground plane and the second major surface (16) of the ground plane and a second gap (72) between the second major surface (16) of the ground plane and the third major surface (20) of the ground plane, wherein the first and second gaps create an increased impedance bandwidth and a lower operating frequency antenna.