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. 24, 2009
Filed:
Jan. 14, 2005
Chia-lun Tang, Hsinchu, TW;
Shih-hung Yeh, Hsinchu, TW;
Kin-lu Wong, Hsinchu, TW;
Saou-wen Su, Hsinchu, TW;
Chih-hsien Wu, Hsinchu, TW;
Chia-Lun Tang, Hsinchu, TW;
Shih-Hung Yeh, Hsinchu, TW;
Kin-Lu Wong, Hsinchu, TW;
Saou-Wen Su, Hsinchu, TW;
Chih-Hsien Wu, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An omnidirectional ultra-wideband monopole antenna, with the characteristics of simple structure, easy fabrication and low cost, mainly comprises a ground plane, a U-shaped radiating member above the ground plane and a feeding member for feeding signals to the radiating member. The radiating member further comprises a first sub-radiating member parallel to the ground plane, with a first side edge and a corresponding second side edge, a second sub-radiating member connected to the first side edge and perpendicular to the first sub-radiating member, forming a first angle therebetween, and a third sub-radiating member connected to the second side edge to form a second angle. The second sub-radiating member and the third sub-radiating member are extended in the same upright direction above the ground plane. The antenna can provide good omnidirectional radiation patterns for frequencies across a very wide operating bandwidth.