Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481663
M. Tymchenko, J. S. Gómez-Díaz, J. Lee, M. Belkin, A. Alú
We describe a novel class of ultrathin plasmonic metasurfaces able to provide nonlinear conversion efficiencies many orders of magnitude larger than any other nonlinear flat setup previously reported. This large efficiency is achieved over subwavelength thickness, avoiding the use of cumbersome phase matching techniques. In addition, we show how such metasurfaces can be designed to provide full control over the local phase of the generated signals, opening exciting prospects for creating nonlinear reflect- and transmittarrays able to tailor the emerging wavefronts at will, with direct application in light bending, focusing, and communication systems.
{"title":"Ultrathin nonlinear metasurfaces with continuous phase control at the nanoscale","authors":"M. Tymchenko, J. S. Gómez-Díaz, J. Lee, M. Belkin, A. Alú","doi":"10.1109/EUCAP.2016.7481663","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481663","url":null,"abstract":"We describe a novel class of ultrathin plasmonic metasurfaces able to provide nonlinear conversion efficiencies many orders of magnitude larger than any other nonlinear flat setup previously reported. This large efficiency is achieved over subwavelength thickness, avoiding the use of cumbersome phase matching techniques. In addition, we show how such metasurfaces can be designed to provide full control over the local phase of the generated signals, opening exciting prospects for creating nonlinear reflect- and transmittarrays able to tailor the emerging wavefronts at will, with direct application in light bending, focusing, and communication systems.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"10 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81116323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481273
F. Mioc, M. Saporetti, M. Sabbadini, M. Del Muto
This paper presents the application to satellite antenna modelling of a common format for the exchange of geometry and associated data. The EDX development has been a core activity of the EAML team in collaboration with the Working Group on Software of the European Association on Antennas and Propagation (EurAAP). The implementation of the Structures Data Dictionary in Data Dictionary Language is discussed together with an application example relevant to the Emerald satellite facsimile.
{"title":"Application of the Structure Data Dictionary to satellite antenna modelling","authors":"F. Mioc, M. Saporetti, M. Sabbadini, M. Del Muto","doi":"10.1109/EUCAP.2016.7481273","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481273","url":null,"abstract":"This paper presents the application to satellite antenna modelling of a common format for the exchange of geometry and associated data. The EDX development has been a core activity of the EAML team in collaboration with the Working Group on Software of the European Association on Antennas and Propagation (EurAAP). The implementation of the Structures Data Dictionary in Data Dictionary Language is discussed together with an application example relevant to the Emerald satellite facsimile.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"11 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79518349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481452
M. Sonkki, E. Antonino-Daviu, M. Ferrando-Bataller, E. Salonen
This paper presents a wideband miniaturized Vivaldi antenna with two excitation ports to create broadside and omnidirectional radiation patterns. The antenna is based on two Vivaldi monopoles implemented perpendicularly to a conductive ground plane, and oriented in opposite directions of the vertical symmetry axis. By exciting the ports in- and out- of phase, two orthogonal radiating modes can be excited. These modes present 96% and 120% simulated relative -10 dB reflection coefficient bandwidth from 1.5 GHz to 6 GHz, depending on the excited mode, with total efficiency better than -1 dB. The studied low envelope correlation between the modes is predicting very good diversity or MIMO performance. Also the simulated surface current distributions and related radiation patterns in XY- and XZ-cut at 2 GHz, 4 GHz, and 6 GHz are presented and compared.
{"title":"Wideband two-port symmetrical monopole antenna with broadside and omnidirectional radiation","authors":"M. Sonkki, E. Antonino-Daviu, M. Ferrando-Bataller, E. Salonen","doi":"10.1109/EUCAP.2016.7481452","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481452","url":null,"abstract":"This paper presents a wideband miniaturized Vivaldi antenna with two excitation ports to create broadside and omnidirectional radiation patterns. The antenna is based on two Vivaldi monopoles implemented perpendicularly to a conductive ground plane, and oriented in opposite directions of the vertical symmetry axis. By exciting the ports in- and out- of phase, two orthogonal radiating modes can be excited. These modes present 96% and 120% simulated relative -10 dB reflection coefficient bandwidth from 1.5 GHz to 6 GHz, depending on the excited mode, with total efficiency better than -1 dB. The studied low envelope correlation between the modes is predicting very good diversity or MIMO performance. Also the simulated surface current distributions and related radiation patterns in XY- and XZ-cut at 2 GHz, 4 GHz, and 6 GHz are presented and compared.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"47 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82978525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481802
N. A. Rashid, M. Yasin, M. N. Norizan, S. Khatun, S. Murad, I. S. Mohamad, M. I. Sulaiman
Wireless power transfer (WPT) is a device that transmits electrical energy from a power unit to an electrical load through the air wirelessly or without the interconnection of any conductors. The designs of current WPT are quite large and inappropriate for many applications, especially for electronic devices. The small scale (mid-range WPT) with 1 meter distance was investigated to develop a wirelessly transmitted energy for the use of electronic devices, particularly to charge portable devices. The distance of a mid-range WPT can be increased by placing the resonators between the transmitter and receiver to achieve the 1-meter distance of the WPT. The power transfer efficiency (PTE) was significantly enhanced when the resonators was placed. The high efficiency was maintained due to the increasing distance of the WPT. As a result, more power can be transmitted from transmitter to the receiver respectively.
{"title":"Design and optimization of magnetic resonance coupling by using relay effect","authors":"N. A. Rashid, M. Yasin, M. N. Norizan, S. Khatun, S. Murad, I. S. Mohamad, M. I. Sulaiman","doi":"10.1109/EUCAP.2016.7481802","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481802","url":null,"abstract":"Wireless power transfer (WPT) is a device that transmits electrical energy from a power unit to an electrical load through the air wirelessly or without the interconnection of any conductors. The designs of current WPT are quite large and inappropriate for many applications, especially for electronic devices. The small scale (mid-range WPT) with 1 meter distance was investigated to develop a wirelessly transmitted energy for the use of electronic devices, particularly to charge portable devices. The distance of a mid-range WPT can be increased by placing the resonators between the transmitter and receiver to achieve the 1-meter distance of the WPT. The power transfer efficiency (PTE) was significantly enhanced when the resonators was placed. The high efficiency was maintained due to the increasing distance of the WPT. As a result, more power can be transmitted from transmitter to the receiver respectively.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78486743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481754
Junghoon Ko, Sooyoung Hur, Sunguk Lee, Youngseok Kim, Yun-Seok Noh, Yeon-Jea Cho, Shinhwan Kim, Seungyong Bong, Sunghyun Kim, Jeongho Park, Dong-Jo Park, D. Cho
In this paper, radio propagation measurements and analysis are presented to investigate the channel characteristics of millimeter wave (mmWave) transmission for outdoor cellular communication systems. The measurement campaign is performed in a ski resort town placed in Pyeongchang, South Korea, which is the venue of the coming Winter Olympics in 2018. A 28 GHz synchronous channel sounder system is used in conducting the channel measurements. From the measurements, the spatio-temporal channel characteristics such as path loss, multipath delay, angular statistics are analyzed. The mmWave radio propagation parameters and the corresponding channel models based on the 3GPP spatial channel model (SCM) are also presented. Since a trial service is planned during the 2018 Pyeongchang Winter Olympic Games, this research is significant to demonstrate the emerging 5G technologies. Additionally, blocking tests, which measure the path loss variation when there are some obstacles, are discussed in this paper.
{"title":"28 GHz channel measurements and modeling in a ski resort town in pyeongchang for 5G cellular network systems","authors":"Junghoon Ko, Sooyoung Hur, Sunguk Lee, Youngseok Kim, Yun-Seok Noh, Yeon-Jea Cho, Shinhwan Kim, Seungyong Bong, Sunghyun Kim, Jeongho Park, Dong-Jo Park, D. Cho","doi":"10.1109/EUCAP.2016.7481754","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481754","url":null,"abstract":"In this paper, radio propagation measurements and analysis are presented to investigate the channel characteristics of millimeter wave (mmWave) transmission for outdoor cellular communication systems. The measurement campaign is performed in a ski resort town placed in Pyeongchang, South Korea, which is the venue of the coming Winter Olympics in 2018. A 28 GHz synchronous channel sounder system is used in conducting the channel measurements. From the measurements, the spatio-temporal channel characteristics such as path loss, multipath delay, angular statistics are analyzed. The mmWave radio propagation parameters and the corresponding channel models based on the 3GPP spatial channel model (SCM) are also presented. Since a trial service is planned during the 2018 Pyeongchang Winter Olympic Games, this research is significant to demonstrate the emerging 5G technologies. Additionally, blocking tests, which measure the path loss variation when there are some obstacles, are discussed in this paper.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"8 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78524253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481875
A. Bellion, K. Elis, Stephanie De Gaetano
This paper presents a new compact single-feed circularly polarized S-band antenna for Nanosatellite TT&C applications. The antenna is composed of two crossed dipoles printed on both sides of a substrate, center-fed by a 50Ω coaxial cable. It provides a unidirectional pattern thanks to a reflector placed below the antenna. In order to reduce the size of the structure, this reflector is composed of an Artificial Magnetic Conductor (AMC). The bandwidth of the antenna is 17% (1.98 - 2.35 GHz) and covers the 2.025-2.110GHz TeleCommand band and the 2.2-2.29 GHz TeleMetry band. The size of the entire structure including the radome and the satellite interface is 0.58λmin of diameter and 0.081λmin of height where λmin is the wavelength at the lowest frequency. This new antenna concept will be used in the EYESAT CNES Program in 2017.
{"title":"New compact S-band antenna for Nanosatellite TeleMetry and TeleCommand applications - EyeSat program","authors":"A. Bellion, K. Elis, Stephanie De Gaetano","doi":"10.1109/EUCAP.2016.7481875","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481875","url":null,"abstract":"This paper presents a new compact single-feed circularly polarized S-band antenna for Nanosatellite TT&C applications. The antenna is composed of two crossed dipoles printed on both sides of a substrate, center-fed by a 50Ω coaxial cable. It provides a unidirectional pattern thanks to a reflector placed below the antenna. In order to reduce the size of the structure, this reflector is composed of an Artificial Magnetic Conductor (AMC). The bandwidth of the antenna is 17% (1.98 - 2.35 GHz) and covers the 2.025-2.110GHz TeleCommand band and the 2.2-2.29 GHz TeleMetry band. The size of the entire structure including the radome and the satellite interface is 0.58λmin of diameter and 0.081λmin of height where λmin is the wavelength at the lowest frequency. This new antenna concept will be used in the EYESAT CNES Program in 2017.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"12 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73174548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481785
S. Morvan, O. Vacus, Fabien Degery
The Characteristic Mode Theory is a valuable tool in RCS analysis. Although the mathematical framework is established in the context of PEC objects, we apply the eigenvalue decomposition on Scattering Operators of coated objects, which coating is modeled by an impedance condition on the surface. We show that the computed scattering operators exhibit the mathematical properties indicated by the theory, and exhibit an empirical möbius transform between the value of the impedance coating, and the first eigenvalue of the decomposition of the operator. This could be successfully used as a zero order model for the RCS of the object.
{"title":"Scattering Operator eigendecomposition in the low frequency domain: Relationship between eigenvalues and surface impedance","authors":"S. Morvan, O. Vacus, Fabien Degery","doi":"10.1109/EUCAP.2016.7481785","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481785","url":null,"abstract":"The Characteristic Mode Theory is a valuable tool in RCS analysis. Although the mathematical framework is established in the context of PEC objects, we apply the eigenvalue decomposition on Scattering Operators of coated objects, which coating is modeled by an impedance condition on the surface. We show that the computed scattering operators exhibit the mathematical properties indicated by the theory, and exhibit an empirical möbius transform between the value of the impedance coating, and the first eigenvalue of the decomposition of the operator. This could be successfully used as a zero order model for the RCS of the object.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"24 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80100102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481852
Gerald Artner, R. Langwieser
The introduction of carbon-fiber composites in chassis production changed the materials in the vicinity of vehicular antennas. The two IEEE 802.11p antennas of an automotive antenna system are measured on a carbon-fiber roof and an aluminum sheet. Gain patterns are in good agreement, radiation efficiency on the carbon-fiber roof is about ten percentage points lower than on aluminum.
{"title":"Performance of an automotive antenna module on a carbon-fiber composite car roof","authors":"Gerald Artner, R. Langwieser","doi":"10.1109/EUCAP.2016.7481852","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481852","url":null,"abstract":"The introduction of carbon-fiber composites in chassis production changed the materials in the vicinity of vehicular antennas. The two IEEE 802.11p antennas of an automotive antenna system are measured on a carbon-fiber roof and an aluminum sheet. Gain patterns are in good agreement, radiation efficiency on the carbon-fiber roof is about ten percentage points lower than on aluminum.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"23 Suppl 1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80325958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481877
R. Ghiani, L. Luini, A. Fanti
This contribution investigates the path reduction factor (PF) on terrestrial links, a typical element of rain attenuation prediction models, introduced to take into due account the spatial inhomogeneity of rainfall. A large number of PF values are calculated by simulating the interaction of a hypothetical terrestrial link with a set of realistic rain fields synthesized by MultiEXCELL. The dependence of PF on different quantities such as the path length, the operational frequency, and the rain rate measured at the transmitter, is addressed. Based on that, the contribution also illustrates the preliminary modeling steps oriented to the development of a new analytical methodology for the physically-based prediction of the rain attenuation affecting terrestrial links.
{"title":"Investigation of the path reduction factor on terrestrial links for the development of a physically-based rain attenuation model","authors":"R. Ghiani, L. Luini, A. Fanti","doi":"10.1109/EUCAP.2016.7481877","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481877","url":null,"abstract":"This contribution investigates the path reduction factor (PF) on terrestrial links, a typical element of rain attenuation prediction models, introduced to take into due account the spatial inhomogeneity of rainfall. A large number of PF values are calculated by simulating the interaction of a hypothetical terrestrial link with a set of realistic rain fields synthesized by MultiEXCELL. The dependence of PF on different quantities such as the path length, the operational frequency, and the rain rate measured at the transmitter, is addressed. Based on that, the contribution also illustrates the preliminary modeling steps oriented to the development of a new analytical methodology for the physically-based prediction of the rain attenuation affecting terrestrial links.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"29 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82161354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-04-10DOI: 10.1109/EUCAP.2016.7481639
Siyuan Zou, Dongying Li, Yu Wenxian
In this paper, a novel algorithm is proposed for target tracking with distributed sensors by combining particle filtering based on the adaptive genetic algorithm and the fast covariance intersection algorithm. The adaptive genetic algorithm is applied in the resampling process to overcome the problem of particle deprivation in the particle filtering. In each genetic particle filter, the particles with large weights are retained as a part of the offspring directly, while the other particles are hybridized or mutated with their weights and then we select the particles with larger weights as the other part of the offspring. It is different from the conventional adaptive genetic particle filtering. The distributed data fusion based on fast covariance intersection is processed on each sensor after the particle filtering. The simulation results show that the algorithm obtains more accurate estimation of the target comparing with SIR particle filtering.
{"title":"Distributed sensor fusion using covariance intersection and particle filtering based on adaptive genetic algorithm","authors":"Siyuan Zou, Dongying Li, Yu Wenxian","doi":"10.1109/EUCAP.2016.7481639","DOIUrl":"https://doi.org/10.1109/EUCAP.2016.7481639","url":null,"abstract":"In this paper, a novel algorithm is proposed for target tracking with distributed sensors by combining particle filtering based on the adaptive genetic algorithm and the fast covariance intersection algorithm. The adaptive genetic algorithm is applied in the resampling process to overcome the problem of particle deprivation in the particle filtering. In each genetic particle filter, the particles with large weights are retained as a part of the offspring directly, while the other particles are hybridized or mutated with their weights and then we select the particles with larger weights as the other part of the offspring. It is different from the conventional adaptive genetic particle filtering. The distributed data fusion based on fast covariance intersection is processed on each sensor after the particle filtering. The simulation results show that the algorithm obtains more accurate estimation of the target comparing with SIR particle filtering.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"4 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82519791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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