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A D-band Guanella Transformer Based Stacked Doherty Power Amplifier with Adaptive Bias Network in 250-nm InP DHBT

 
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cris.virtual.orcid0000-0002-1540-2462
cris.virtual.orcid0000-0002-2416-0880
cris.virtual.orcid0000-0003-1939-2422
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cris.virtualsource.orcid7d7afad6-4bef-4103-88e0-17fa5c157752
dc.contributor.authorGielen, Senne
dc.contributor.authorGungor, Berke
dc.contributor.authorZhang, Yang
dc.contributor.authorIngels, Mark
dc.contributor.authorReynaert, Patrick
dc.date.accessioned2026-03-16T14:02:24Z
dc.date.available2026-03-16T14:02:24Z
dc.date.createdwos2025-11-11
dc.date.issued2025
dc.description.abstractThis paper presents a compact D-band Doherty power amplifier (PA) in 250-nm InP DHBT. The power amplifier core consists of a stacked common-emitter and common-base pair and utilizes an integrated 1:4 Guanella transformer for interstage matching. A power detector as well as an adaptive bias network are also implemented to boost the linearity and efficiency of the amplifier. The PA achieves a small-signal gain of 17.8 dB and a small-signal bandwidth of 14.7 GHz. In continuous-wave measurements, the power amplifier has a saturated output power of 20.3 dBm. The amplifier achieves a maximum power-added efficiency (PAE) of 21.4% and 11.5% with 6-dB power backoff. The performance of the amplifier is verified with modulated measurements up to 24 Gb/s.
dc.identifier.doi10.1109/rfic61188.2025.11082824
dc.identifier.isbn979-8-3315-1412-9
dc.identifier.issn1529-2517
dc.identifier.urihttps://imec-publications.be/handle/20.500.12860/58843
dc.language.isoeng
dc.provenance.editstepusergreet.vanhoof@imec.be
dc.publisherIEEE
dc.source.beginpage231
dc.source.conferenceIEEE Radio Frequency Integrated Circuits Symposium (RFIC)
dc.source.conferencedate2025-06-15
dc.source.conferencelocationSan Francisco
dc.source.endpage234
dc.source.journal2025 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS SYMPOSIUM, RFIC
dc.source.numberofpages4
dc.title

A D-band Guanella Transformer Based Stacked Doherty Power Amplifier with Adaptive Bias Network in 250-nm InP DHBT

dc.typeProceedings paper
dspace.entity.typePublication
imec.internal.crawledAt2025-11-20
imec.internal.sourcecrawler
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