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. 12, 2008
Filed:
Jul. 11, 2005
Aimo Arkko, Ruutana, FI;
Jani Ollikainen, Helsinki, FI;
Shunya Sato, Tokyo, JP;
Hawk Yin Pang, Tokyo, JP;
Aimo Arkko, Ruutana, FI;
Jani Ollikainen, Helsinki, FI;
Shunya Sato, Tokyo, JP;
Hawk Yin Pang, Tokyo, JP;
Abstract
This invention describes a method for improving antenna isolation in an electronic communication device using grounded RF microwave elements and patterns (structures). According to embodiments of the present invention, the RF microwave element can be implemented as a short-circuited section of a quarter-wavelength long transmission line (such as a stripline), or the RF microwave element can contain a metallic coupler and two thin striplines with different lengths, or the RF microwave element can be implemented using a balun concept.