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:
Jan. 08, 2002
Filed:
Sep. 27, 2000
I-Fong Chen, Tao-Yuan, TW;
Abstract
An omni-directional broadband helical antenna array having a square electric circuit board with the back side thereof grounded, wherein, the four orthogonal corners on the surface of the electric circuit board are provided each with a helical antenna. The distance between every two of the helical antennae is in the range of 0.25 &lgr;-0.3 &lgr;. The helical antennae feed signals outwardly via microstrip lines, the length of each of the microstrip lines is &lgr;; and they feed signals outwardly via another microstrip line after gathering the above mentioned microstrip lines. Thus an omni-directional broadband helical antenna device capable of mounting in a communication instrument such as a notebook style computer is formed.