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.

Date of Patent:
Jul. 10, 2001

Filed:

May. 05, 1999
Applicant:
Inventors:

Yihong Qi, Waterloo, CA;

Lizhong Zhu, Waterloo, CA;

Xifan Chen, Kitchener, CA;

Wutu Wang, Xian, CN;

Assignee:

Superpass Company Inc., Waterloo, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/310 ; H01Q 2/100 ;
U.S. Cl.
CPC ...
H01Q 1/310 ; H01Q 2/100 ;
Abstract

A wideband slot-loop antenna is described which comprises a generally planar loop element having a generally rectangular outer perimeter and a slot defining an inner perimeter, the mid portion of the slot-loop structure providing a major radiation portion of the antenna; a loading structure extending from one end of the slot, the loading structure for top loading the radiation portion; and an impedance matching portion for coupling a feed to the major radiation portion. The antenna also includes distributed matching patches. The distributed matching patches realize extra wideband performance. The antennas in the present invention are suitable for various wireless communications, such as PCS, Cellular Telephone, wireless data and computer network.


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