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A wideband Doherty-like architecture using a Klopfenstein taper for load modulation
dc.contributor.author | Bertran Albertí, Eduardo |
dc.contributor.author | Mehran, Yahyavi |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2015-11-25T15:30:26Z |
dc.date.available | 2015-11-25T15:30:26Z |
dc.date.issued | 2015-11-02 |
dc.identifier.citation | Bertran, E., Mehran , Y. A wideband Doherty-like architecture using a Klopfenstein taper for load modulation. "IEEE microwave and wireless components letters", 02 Novembre 2015, vol. 25, núm. 11, p. 760-762. |
dc.identifier.issn | 1531-1309 |
dc.identifier.uri | http://hdl.handle.net/2117/79897 |
dc.description | “©2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.” |
dc.description.abstract | A novel Doherty-like power amplifier (DPA) has been fabricated using 15 W, 2.7 GHz, GaN HEMT transistors. The quarter-wave transformer used in the classical DPA topology is replaced by a matching network including a Klopfenstein taper. From a practical prototype realization, this modification has demonstrated that the resulting DPA bandwidth (BW) is increased in comparison with the conventional topology while keeping the efficiency figures. Moreover, this design allows an easy tuning of the group delay through the output reactance of the taper, resulting in a more straightforward adjustments than other recently-published designs where the quarter-wave transformer is replaced by multi-section transmission lines (hybrid or similar). Experimental results have shown an average efficiency of 47.2% for the HSPA+ modulation centered at 2.25GHz. |
dc.format.extent | 3 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria electrònica |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal |
dc.subject.lcsh | Power amplifiers |
dc.subject.lcsh | Gallium nitride |
dc.subject.other | Doherty power amplifier (DPA) |
dc.subject.other | Drain efficiency |
dc.subject.other | Fractional bandwidth |
dc.subject.other | Gallium nitride (GaN) |
dc.subject.other | Klopfenstein taper |
dc.title | A wideband Doherty-like architecture using a Klopfenstein taper for load modulation |
dc.type | Article |
dc.subject.lemac | Amplificadors de potència |
dc.subject.lemac | Nitrur de gal·li |
dc.contributor.group | Universitat Politècnica de Catalunya. CSC - Components and Systems for Communications Research Group |
dc.identifier.doi | 10.1109/LMWC.2015.2479847 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7295643 |
dc.rights.access | Open Access |
local.identifier.drac | 17006082 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Bertran, E.; Mehran, Y. |
local.citation.publicationName | IEEE microwave and wireless components letters |
local.citation.volume | 25 |
local.citation.number | 11 |
local.citation.startingPage | 760 |
local.citation.endingPage | 762 |
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