Title:
High efficiency switching CMOS power amplifiers for wireless communications

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dc.contributor.advisor Laskar, Joy
dc.contributor.author Lee, Ockgoo en_US
dc.contributor.committeeMember Emmanouil M. Tentzeris
dc.contributor.committeeMember Stüber, Gordon L.
dc.contributor.committeeMember Cressler, John D.
dc.contributor.committeeMember Paul A. Kohl
dc.contributor.department Electrical and Computer Engineering en_US
dc.date.accessioned 2011-03-04T20:16:54Z
dc.date.available 2011-03-04T20:16:54Z
dc.date.issued 2009-11-13 en_US
dc.description.abstract High-efficiency performance is one of the most important requirements of power amplifiers (PAs) for wireless applications. However, the design of highly efficient CMOS PAs for watt-level applications is a challenging task. This dissertation focuses on the development of the design method for highly efficient CMOS PAs to overcome the fundamental difficulties presented by CMOS technology. In this dissertation, the design method and analysis for a high-power and highefficiency class-E CMOS PA with a fully integrated transformer have been presented. This work is the first effort to set up a comprehensive design methodology for a fully integrated class-E CMOS PA including effects of an integrated transformer, which is very crucial for watt-level power applications. In addition, to improve efficiency of cascode class-E CMOS PAs, a charging acceleration technique is developed. The method accelerates a charging speed to turn off the common-gate device in the off-state, thus reducing the power loss. To demonstrate the proposed cascode class-E PA, a prototype CMOS PA was implemented in a 0.18-μm CMOS process. Measurements show an improvement of approximately 6% in the power added efficiency. The proposed cascode class-E PA structure is suitable for the design of high-efficiency class-E PAs while it reduces the voltage stress across the device. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/37145
dc.publisher Georgia Institute of Technology en_US
dc.subject Switching PA en_US
dc.subject Cascode en_US
dc.subject Transformer en_US
dc.subject CMOS en_US
dc.subject Power loss en_US
dc.subject Power amplifier en_US
dc.subject.lcsh Power amplifiers
dc.subject.lcsh Amplifiers (Electronics)
dc.title High efficiency switching CMOS power amplifiers for wireless communications en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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