A Downconversion Beamforming RF Front-End in 130 nm CMOS technology
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/20371 |
Resumo: | Due to the exponential growth of wireless data communications an increasing number of components compete for space in the frequency spectrum. Nowadays, different approaches have been addressed in order to overcome this problem. One of these approaches is using spatial filters instead of time-domain ones. Since most wireless devices operate by transferring/receiving signals to/from all directions, interfering signals are becoming an increasing problem. Thus steering the transmission/reception of signals in a specific direction alleviates this problem, which is performed by employing multiple antennas. In the scope of the spatial filtering approach, a 1 GHz downconvertion 4-element phased array receiver front-end is presented in this thesis, implemented in 130 nm Complementary Metal Oxide Semiconductor (CMOS) technology. The phase shifting of the beamforming receiver is implemented with a switched-capacitor vector modulator, that excels in its linearity and low power consumption. This receiver also provides a spatial rejection of more than 20 dB and good input matching. |
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A Downconversion Beamforming RF Front-End in 130 nm CMOS technologyCMOSMIMO systemsBeamformingPhased arraysRF receiverSpatial filteringDomínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e InformáticaDue to the exponential growth of wireless data communications an increasing number of components compete for space in the frequency spectrum. Nowadays, different approaches have been addressed in order to overcome this problem. One of these approaches is using spatial filters instead of time-domain ones. Since most wireless devices operate by transferring/receiving signals to/from all directions, interfering signals are becoming an increasing problem. Thus steering the transmission/reception of signals in a specific direction alleviates this problem, which is performed by employing multiple antennas. In the scope of the spatial filtering approach, a 1 GHz downconvertion 4-element phased array receiver front-end is presented in this thesis, implemented in 130 nm Complementary Metal Oxide Semiconductor (CMOS) technology. The phase shifting of the beamforming receiver is implemented with a switched-capacitor vector modulator, that excels in its linearity and low power consumption. This receiver also provides a spatial rejection of more than 20 dB and good input matching.Oliveira, JoãoRUNVidago, Fábio Daniel dos Santos2017-03-21T16:45:44Z2016-032017-032016-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/20371enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:03:33Zoai:run.unl.pt:10362/20371Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:26:01.503347Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
title |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
spellingShingle |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology Vidago, Fábio Daniel dos Santos CMOS MIMO systems Beamforming Phased arrays RF receiver Spatial filtering Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática |
title_short |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
title_full |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
title_fullStr |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
title_full_unstemmed |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
title_sort |
A Downconversion Beamforming RF Front-End in 130 nm CMOS technology |
author |
Vidago, Fábio Daniel dos Santos |
author_facet |
Vidago, Fábio Daniel dos Santos |
author_role |
author |
dc.contributor.none.fl_str_mv |
Oliveira, João RUN |
dc.contributor.author.fl_str_mv |
Vidago, Fábio Daniel dos Santos |
dc.subject.por.fl_str_mv |
CMOS MIMO systems Beamforming Phased arrays RF receiver Spatial filtering Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática |
topic |
CMOS MIMO systems Beamforming Phased arrays RF receiver Spatial filtering Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática |
description |
Due to the exponential growth of wireless data communications an increasing number of components compete for space in the frequency spectrum. Nowadays, different approaches have been addressed in order to overcome this problem. One of these approaches is using spatial filters instead of time-domain ones. Since most wireless devices operate by transferring/receiving signals to/from all directions, interfering signals are becoming an increasing problem. Thus steering the transmission/reception of signals in a specific direction alleviates this problem, which is performed by employing multiple antennas. In the scope of the spatial filtering approach, a 1 GHz downconvertion 4-element phased array receiver front-end is presented in this thesis, implemented in 130 nm Complementary Metal Oxide Semiconductor (CMOS) technology. The phase shifting of the beamforming receiver is implemented with a switched-capacitor vector modulator, that excels in its linearity and low power consumption. This receiver also provides a spatial rejection of more than 20 dB and good input matching. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03 2016-03-01T00:00:00Z 2017-03-21T16:45:44Z 2017-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/20371 |
url |
http://hdl.handle.net/10362/20371 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137890853191680 |