Title:
A CMOS radio-frequency front-end for multi-standard wireless communications

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dc.contributor.advisor Tentzeris, Emmanouil M.
dc.contributor.author Cha, Jeongwon en_US
dc.contributor.committeeMember Kang, Sung Ha
dc.contributor.committeeMember Kim, Jongman
dc.contributor.committeeMember Lee, Chang-Ho
dc.contributor.committeeMember Shen, Shyh-Chiang
dc.contributor.department Electrical and Computer Engineering en_US
dc.date.accessioned 2011-03-04T21:01:12Z
dc.date.available 2011-03-04T21:01:12Z
dc.date.issued 2010-08-26 en_US
dc.description.abstract The explosive growth of wireless communication market has led the development of low-cost, highly-integrated wireless communication systems. Even though most blocks in the front-end have successfully been integrated by using the CMOS technology, it is still a formidable challenge to integrate the entire front-end. Thus, the objective of this research is to demonstrate the feasibility of the integrated front-end by using improved circuit techniques as well as the improved process technologies. This dissertation proposes an improved control scheme to enhance the high-power handling capability of an antenna switch. As a part of this research, an antenna switch controller for a GaAs antenna switch was first developed to enhance the performances of the GaAs antenna switch by using the boosted control voltage. To enhance the efficiency of the front-end, efficiency improvement techniques for the antenna switch controller has also been studied. With the suggested efficiency improvement techniques, a fully-integrated antenna switch was implemented using the SOI technology, and exceeding performances over many commercial products for watt-level high-power applications have been successfully demonstrated. As an effort to improve the efficiency of a power amplifier, a linear envelope detector was also implemented, and the results show that the envelope detector is suitable for dynamic biasing of the power amplifier. The research presented in this dissertation, thus, provides a low-cost and high-performance solution for highly-integrated RF front-end used in various wireless communication systems. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/37250
dc.publisher Georgia Institute of Technology en_US
dc.subject CMOS circuits en_US
dc.subject Antenna switch en_US
dc.subject RF front-end en_US
dc.subject.lcsh Metal oxide semiconductors, Complementary
dc.subject.lcsh Wireless communication systems
dc.subject.lcsh Radio frequency
dc.title A CMOS radio-frequency front-end for multi-standard wireless communications en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Tentzeris, Emmanouil M.
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 763bf38d-e5cc-4ebb-b84a-74133d98e550
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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