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:
Jun. 11, 2013
Filed:
Jun. 10, 2009
Ming-iu Lai, Taipei, TW;
Hung-hsiang Chen, Taipei, TW;
Yang-po Chiu, Taipei, TW;
Chun-hsiung Wang, Taipei, TW;
Ming-Iu Lai, Taipei, TW;
Hung-Hsiang Chen, Taipei, TW;
Yang-Po Chiu, Taipei, TW;
Chun-Hsiung Wang, Taipei, TW;
ASUSTeK Computer Inc., Taipei, TW;
Abstract
A planar antenna disposed on a plate having a first surface and a second surface is provided. The planar antenna includes a metal layer, an antenna body, a stepped impedance device, a coupling device and a matching device. The metal layer is disposed on the first surface and has a slot line exposing the first surface. The antenna body, the stepped impedance device, the coupling device and the matching device are disposed on the second surface. The antenna body is corresponding to a surrounding of the metal layer except a feed end thereof, the stepped impedance device and the matching device are corresponding to the metal layer, and the coupling device is corresponding to the slot line. The matching device is coupled between the coupling device and the feed end. The stepped impedance device has a transmission zero in a radio frequency band operated by the antenna body.