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:
Nov. 13, 2012
Filed:
Nov. 01, 2009
Wei-kung Deng, Taipei, TW;
Shau-gang Mao, Taipei, TW;
Shiou-li Chen, Taoyuan County, TW;
Min-sou Wu, Taoyuan County, TW;
Yu-zhi Chueh, Yilan County, TW;
Jen-chun Yeh, Taichung, TW;
Wei-Kung Deng, Taipei, TW;
Shau-Gang Mao, Taipei, TW;
Shiou-Li Chen, Taoyuan County, TW;
Min-Sou Wu, Taoyuan County, TW;
Yu-Zhi Chueh, Yilan County, TW;
Jen-Chun Yeh, Taichung, TW;
RichWave Technology Corp., NeiHu District, Taipei, TW;
Abstract
To meet the requirements including dual-band, a high gain, and a broadside radiation formation, a dual band planar micro-strip antenna utilizing antenna array is provided. One array element includes a rectangle-shaped micro-strip antenna and an arrow-shaped micro-strip antenna. A first resonant frequency is determined by a length of the rectangle-shaped micro-strip antenna. Slots are dug for satisfying a second resonance frequency. Curved surfaces of the arrow-shaped micro-strip antenna designed according to an ellipse equation so that a frequency resonance is reached under both the first resonant frequency and a second resonant frequency, and a broadside radiation formation is thus generated. A T-shaped jointer distributes power between antenna elements according to the output impedances of the antenna elements. An L-shaped band-stop filter located on the T-shaped jointer is utilized to suppress frequency resonance resulted from multiples of the first resonant frequency.