Third-order Intermodulation Reduction in Mobile Power Amplifiers by the First Stage Bias Control

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dc.contributor.authorJung, Jonghun
dc.contributor.authorKwak, Cholho
dc.contributor.authorLee, Jongsoo
dc.coverage.issue2cs
dc.coverage.volume21cs
dc.date.accessioned2015-01-22T11:09:07Zcs_CZ
dc.date.accessioned2015-01-22T13:55:56Z
dc.date.available2015-01-22T11:09:07Zcs_CZ
dc.date.available2015-01-22T13:55:56Z
dc.date.issued2012-06cs
dc.description.abstractIn this paper, the third order intermodulation distortion (IMD3) of three-stage power amplifier (PA) is analyzed using the Volterra series. The analysis explains how the total IMD3 of the three-stage power amplifier can be reduced by the first-stage bias condition. The three-stage PA, which is fabricated using InGaP/GaAs hetero-junction bipolar transistor (HBT), operates with an optimized first driver stage bias for higher P1dB and good gain flatness. The power amplifier has been designed for 1626.5 MHz~1660.5 MHz satellite mobile communications. With π/4 DQPSK modulation signals, this PA can deliver a highly linear output power of 33 dBm from 3.6V supply voltage. At 33 dBm output power, it shows a gain of 31.9 dB, a power-added efficiency (PAE) of 39.8%, an adjacent channel power ratio (ACPR) of -28.2 dBc at a 31.25 KHz offset frequency.en
dc.formattextcs
dc.format.extent746-751cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2012, vol. 21, č. 2, s. 746-751. ISSN 1210-2512cs
dc.identifier.issn1210-2512cs_CZ
dc.identifier.urihttp://hdl.handle.net/11012/37118cs_CZ
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2012/12_02_0746_0751.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectSatellite mobile phoneen
dc.subjectfirst driver stage biasen
dc.subjectthree-stage power amplifier (PA)en
dc.subjecthigh 1 dB gain compression pointen
dc.subjectIMD reductionen
dc.titleThird-order Intermodulation Reduction in Mobile Power Amplifiers by the First Stage Bias Controlen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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