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. 28, 2006
Filed:
Feb. 27, 2002
Walter Kodim, Nuremberg, DE;
Walter Kodim, Nuremberg, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A multiband transformation stage () comprising a common first signal port (), a common second signal port () and a signal path () coupled between the first signal port () and the second signal port () is described. The signal path () is switchable between a first state with a first quarter-wavelength transformer characteristic for a first frequency band, a second state with a second quarter-wavelength transformer characteristic for a second frequency band and a third state with a transmission characteristic. The invention also relates to a multiband switching device comprising the multiband transformation stage () in combination with a low-power switching stage ().