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Conference Paper: A simple and effective RF predistorter for use in the HPAs of base stations in cellular mobile systems

TitleA simple and effective RF predistorter for use in the HPAs of base stations in cellular mobile systems
Authors
KeywordsAdjacent-channel-power ratio (ACPR)
High power amplifier
Inter-modulation
Mixer
RF analog predistorter
Issue Date2008
PublisherIEEE.
Citation
The 11th IEEE Singapore International Conference on Communications Systems (ICCS) 2008, Guangzhou, China, 19-21 Nov 2008. In Proceedings of the 11th ICCS, 2008, p. 805-808 How to Cite?
AbstractThis paper presents the design of using a simple mixer circuit, constructed with Schottky diodes as the nonlinear device, to generate the intermodulation (IM) products for predistortion of high-power amplifiers (HPAs) in the base stations of cellular mobile systems. The design has a simple structure and requires no external dc bias voltage. A complex polynomial is used to model the characteristic of the HPA and the predistorter generates the in-phase and quadrature components of the intermodulation distortion (IMD) products for predistortion of the HPA. Experimental results using a practical HPA show that, for a modulated CDMA (IS-95) signal, the predistorter can reduce the adjacent-channel-power ratio (ACPR) by 15 dB. © 2008 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/126047
ISBN
References

 

DC FieldValueLanguage
dc.contributor.authorXiao, MXen_HK
dc.contributor.authorCheung, SWen_HK
dc.contributor.authorYuk, TIen_HK
dc.date.accessioned2010-10-31T12:06:55Z-
dc.date.available2010-10-31T12:06:55Z-
dc.date.issued2008en_HK
dc.identifier.citationThe 11th IEEE Singapore International Conference on Communications Systems (ICCS) 2008, Guangzhou, China, 19-21 Nov 2008. In Proceedings of the 11th ICCS, 2008, p. 805-808en_HK
dc.identifier.isbn1-4244-2424-5-
dc.identifier.urihttp://hdl.handle.net/10722/126047-
dc.description.abstractThis paper presents the design of using a simple mixer circuit, constructed with Schottky diodes as the nonlinear device, to generate the intermodulation (IM) products for predistortion of high-power amplifiers (HPAs) in the base stations of cellular mobile systems. The design has a simple structure and requires no external dc bias voltage. A complex polynomial is used to model the characteristic of the HPA and the predistorter generates the in-phase and quadrature components of the intermodulation distortion (IMD) products for predistortion of the HPA. Experimental results using a practical HPA show that, for a modulated CDMA (IS-95) signal, the predistorter can reduce the adjacent-channel-power ratio (ACPR) by 15 dB. © 2008 IEEE.-
dc.languageengen_HK
dc.publisherIEEE.-
dc.relation.ispartofProceedings of the IEEE Singapore International Conference on Communications Systems, ICCS 2008en_HK
dc.rightsIEEE International Conference on Communications Systems. Copyright © IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.subjectAdjacent-channel-power ratio (ACPR)en_HK
dc.subjectHigh power amplifieren_HK
dc.subjectInter-modulationen_HK
dc.subjectMixeren_HK
dc.subjectRF analog predistorteren_HK
dc.titleA simple and effective RF predistorter for use in the HPAs of base stations in cellular mobile systemsen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailCheung, SW:swcheung@eee.hku.hken_HK
dc.identifier.emailYuk, TI:tiyuk@eee.hku.hken_HK
dc.identifier.authorityCheung, SW=rp00102en_HK
dc.identifier.authorityYuk, TI=rp00210en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/ICCS.2008.4737296en_HK
dc.identifier.scopuseid_2-s2.0-62949084634en_HK
dc.identifier.hkuros180648en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-62949084634&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage805en_HK
dc.identifier.epage808en_HK
dc.description.otherThe 11th IEEE Singapore International Conference on Communications Systems (ICCS) 2008, Guangzhou, China, 19-21 Nov 2008. In Proceedings of the 11th ICCS, 2008, p. 805-808-
dc.identifier.scopusauthoridXiao, MX=26422653600en_HK
dc.identifier.scopusauthoridCheung, SW=7202472784en_HK
dc.identifier.scopusauthoridYuk, TI=6603685705en_HK

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