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:
Jan. 29, 2019
Filed:
Oct. 06, 2014
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Richard Hellberg, Huddinge, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
An amplifier arrangement comprises N amplifier stages (to). The amplifier arrangement comprises a main cascade of quarter wavelength transmission lines coupled between an output of a main amplifier () of the N amplifier stages (to) and an output node () of the amplifier arrangement, wherein the main cascade comprises N−1 quarter wavelength transmission lines (to). An output of one peaking amplifier () of the N amplifier stages is coupled to the output node (), and remaining peaking amplifiers (to) of the N amplifier stages coupled to respective junctions (to) in the main cascade of quarter wavelength transmission lines (to). The amplifier arrangement is further configured such that at least one of the quarter wavelength transmission lines in the main cascade is extended by a half wavelength transmission line () or multiples of half wavelength transmission lines, and/or at least one of the peaking amplifiers (-to) is coupled to its respective junction or output node () via a connecting half wavelength transmission line () or multiples of half wavelength transmission lines.