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:
Jul. 09, 2002
Filed:
Jun. 16, 2000
Applicant:
Inventors:
Björn Albinsson, Göteborg, SE;
Thomas Harju, Sävedalen, SE;
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 5/08 ;
U.S. Cl.
CPC ...
H01P 5/08 ;
Abstract
The present invention relates to a multilayer printed circuit board arrangement which results in better matching between a stripline ( ) and a microstrip ( ) in a cavity ( ). The solution comprises the use of an asymmetric stripline ( ) where the electric field is tied primarily to the lower earth plane ( ). This results in good matching at the transition to the microstrip ( ), whose field is tied to the lower earth plane (