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:
Feb. 12, 2008
Filed:
Oct. 24, 2005
Shenghui Zhang, Beijing, CN;
Jennifer T. Bernhard, Champaign, IL (US);
Gregory H. Huff, Champaign, IL (US);
Garvin Cung, Columbia, MD (US);
Shenghui Zhang, Beijing, CN;
Jennifer T. Bernhard, Champaign, IL (US);
Gregory H. Huff, Champaign, IL (US);
Garvin Cung, Columbia, MD (US);
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Abstract
An antenna device includes a dielectric layer, an electrical ground layer carried on one side of the dielectric layer, and an antenna arrangement carried on another side of the dielectric layer. This arrangement includes two parasitic microstrip elements and a microstrip signal element. The signal element is structured to radiate an electromagnetic signal in response to application of a corresponding electrical communication signal. The parasitic antenna elements extend along opposing longitudinal sides of the signal element and each includes an adjustable component operatively connected between two microstrips. The adjustable component is structured to selectively adjust operable length of a selected one of the parasitic antenna elements to change a maximum radiation direction of the antenna device.