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:
Sep. 16, 2003
Filed:
May. 08, 2002
Chi Yin Fang, Pingdong, TW;
Chih Ming Su, Taipei, TW;
Tzung Wern Chiou, Taipei, TW;
Kin Lu Wong, Kaohsiung, TW;
Abstract
A dual-band dipole antenna, which is adapted to be disposed on a dielectric substrate, comprises two substantially rectangular radiating metallic sheets and a coaxial transmission line. The substantially rectangular radiating metallic sheets are symmetrically disposed on two sides of the dielectric substrate with respect to the central line thereof, wherein each of the radiating metallic sheets further has a feeding point and a slit. One feeding point is disposed opposite to the other feeding point, and the slit extends from one edge of the substantially rectangular radiating metallic sheet to the interior thereof in the direction of the feeding point so that a longer path and a shorter one are formed on the substantially rectangular radiating metallic sheet, wherein the longer path serves to generate a first (lower frequency) operating mode of the dual-band dipole antenna, and the shorter path serves to generate a second (higher frequency) operating mode thereof. The coaxial transmission line has a core conductor and an external ground conductor which are respectively connected to the feeding points.