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Validation of Propagation Delay on The Development of Wi-Fi CSI Based Channel Sounder for Passive Motion Sensing 基于Wi-Fi CSI的被动运动传感信道测深器开发中的传播延迟验证
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769508
Nopphon Keerativoranan, Kentaro Saito, J. Takada
{"title":"Validation of Propagation Delay on The Development of Wi-Fi CSI Based Channel Sounder for Passive Motion Sensing","authors":"Nopphon Keerativoranan, Kentaro Saito, J. Takada","doi":"10.23919/eucap53622.2022.9769508","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769508","url":null,"abstract":"Wi-Fi channel state information (CSI) has been widely utilized in various motion sensing applications such as motion detection, recognition, localization and tracking. Comparison with Doppler frequency, propagation delay is unreliable due to a non-synchronization between two Wi-Fi stations, thus it is hardly utilized for motion sensing. Since the CSI B2B calibration in the previous work introduced a form of synchronization via a cable channel, the propagation delay has become utilizable. In this paper, a performance and reliability of the CSI propagation delay will be validated as well as addressing the source of delay offset due to B2B calibration. In addition, applicability of utilizing propagation delay in a person falling scenario will be demonstrated as one of the motion sensing application.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"660 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115122702","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}
引用次数: 0
SDR-Based Communication Sniffing for Determining the Proliferation of ITS-G5 基于sdr的通信嗅探检测ITS-G5扩散
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769381
Golsa Ghiaasi, Thomas Blazek, Fjolla Ademaj, Julian Karoliny, Stefan Marksteiner, M. Wolf, P. Priller, Hans-Peter Bernhard
{"title":"SDR-Based Communication Sniffing for Determining the Proliferation of ITS-G5","authors":"Golsa Ghiaasi, Thomas Blazek, Fjolla Ademaj, Julian Karoliny, Stefan Marksteiner, M. Wolf, P. Priller, Hans-Peter Bernhard","doi":"10.23919/eucap53622.2022.9769381","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769381","url":null,"abstract":"This paper describes the measurement setup for the proliferation of the vehicular communication systems in operating cars. The setup builds on a communication sniffer which detects cooperative awareness messages broadcast from ETSI ITS-G5 systems, decodes them and records the public information in these messages. The experimental characterization of the setup in an outdoor scenario is presented in order to verify the sniffer's performance with respect to transmit power and communication range. The setup is deployed for measurements on a busy road with slow moving traffic in the center of the city of Linz, Austria. The number of active users as well as their transmit power, duration of the transmission and packet length have been recorded.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115436336","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}
引用次数: 0
Wireless LAN sensing with smart antennas 无线局域网传感与智能天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.48550/arXiv.2205.00973
Marco Santoboni, Riccardo Bersan, S. Savazzi, Alberto Zecchin, V. Rampa, D. Piazza
{"title":"Wireless LAN sensing with smart antennas","authors":"Marco Santoboni, Riccardo Bersan, S. Savazzi, Alberto Zecchin, V. Rampa, D. Piazza","doi":"10.48550/arXiv.2205.00973","DOIUrl":"https://doi.org/10.48550/arXiv.2205.00973","url":null,"abstract":"The paper targets the problem of human motion detection using Wireless Local Area Network devices (WiFi) equipped with pattern reconfigurable antennas. Motion sensing is obtained by monitoring the body-induced alterations of the ambient WiFi signals originated from smart antennas supporting the beam-steering technology, thus allowing to channelize the antenna radiation pattern to pre-defined spots of interest. We first discuss signal and Channel State Information (CSI) processing and sanitization. Next, we describe the motion detection algorithm based on Angle-of-Arrival (AoA) monitoring. Proposed algorithms are validated experimentally inside a large size smart home environment.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115492027","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}
引用次数: 2
Modelling 3D Dynamic Cloud Fields to Investigate the Performance of FSO SatCom Systems 三维动态云场建模研究FSO卫星通信系统的性能
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9768901
Alef Comisso, L. Luini
{"title":"Modelling 3D Dynamic Cloud Fields to Investigate the Performance of FSO SatCom Systems","authors":"Alef Comisso, L. Luini","doi":"10.23919/eucap53622.2022.9768901","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9768901","url":null,"abstract":"With increasing data rate requirements on SatCom systems there is a push to use higher frequency carriers. Although free space optical communications would meet these demands, they are severely limited by the weather conditions affecting the ground stations. Therefore, it is important to model these phenomena to predict the possibility of link outages so that an appropriate fade mitigation technique can be applied. This contribution aims to extend a model in the literature (Stochastic Model of Clouds) to include the time variability of the cloud field. The temporal evolution is studied using satellite observations and is introduced into the model by inputting ERA5 data chronologically, which has been linearly interpolated to a temporal resolution of 1 minute. The new model is then used to study the effect of site diversity for the mitigation of cloud attenuation on a GEO-Earth optical link operating at $1.55 mu mathrm{m}$.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123128296","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}
引用次数: 0
Optically Controlled Circularly Polarized-Reconfigurable Millimeter-Wave Rectangular Dielectric Resonator Antenna using Photoconductive Switches 利用光导开关的光控圆极化可重构毫米波矩形介电谐振器天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9768895
A. Soltan, Abdulmajid A. Abdulmajid, S. Khamas
{"title":"Optically Controlled Circularly Polarized-Reconfigurable Millimeter-Wave Rectangular Dielectric Resonator Antenna using Photoconductive Switches","authors":"A. Soltan, Abdulmajid A. Abdulmajid, S. Khamas","doi":"10.23919/eucap53622.2022.9768895","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9768895","url":null,"abstract":"A circularly polarized (CP)-reconfigurable rectangular dielectric resonator Antenna (RDRA) is proposed for mm-wave applications. By utilizing two photoconductive switches, the antenna can be switched to radiate either a linearly polarized (LP) field, left-hand CP (LHCP) field or right-hand CP (RHCP) field. The structure requires a simple fabrication process. The simulated results demonstrate reconfigurable polarization characteristics with an impedance bandwidth of 31.8% for both LHCP and RHCP radiations as well as an impedance bandwidth of 9.5% for the LP radiation. This is achieved in conjunction with a maximum gain of 7 dBi. The axial ratio (AR) bandwidth is ~11% for both LHCP and RHCP radiations.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"312 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124429244","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}
引用次数: 1
Metal-only Multi-beam Fabry-Perot Antenna 金属多波束法布里-珀罗天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769193
J. Ruiz-García, C. Bilitos, E. Martini, G. Toso, S. Maci, D. González-Ovejero
{"title":"Metal-only Multi-beam Fabry-Perot Antenna","authors":"J. Ruiz-García, C. Bilitos, E. Martini, G. Toso, S. Maci, D. González-Ovejero","doi":"10.23919/eucap53622.2022.9769193","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769193","url":null,"abstract":"This paper presents a Fabry-Perot (FP) antenna with azimuthal scanning by beam switching at Ka-band. The system is composed of two stacked layers with circular shape. The bottom layer contains a Reflecting Luneburg Lens (RLL), which serves to generate a plane wave in the top one. In turn, the top layer hosts a Fabry-Perot cavity, which is used to gradually radiate the excited plane wave through a partially reflective surface (PRS), thus, producing a directive beam. Both the RLL and the FP cavity are azimuthally symmetric and allow one to generate identical pencil beams for any azimuthal direction. Moreover, it is possible to scan also in elevation by varying the height of the FP cavity, which provides 2D beam-steering capability. The double-layer approach guarantees the compactness of the device, whereas a full-metal implementation minimizes the propagation losses and renders the structure robust and fit for operation in harsh environments. The proposed system is well-suited for spatial applications, in particular for medium and high-gain antennas integrated in SmallSats and CubeSats.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117217299","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}
引用次数: 0
A Conformal and Transparent Frequency Reconfigurable Water Antenna 一种共形透明频率可重构水天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769462
A. Sayem, R. Simorangkir, K. Esselle, J. Buckley
{"title":"A Conformal and Transparent Frequency Reconfigurable Water Antenna","authors":"A. Sayem, R. Simorangkir, K. Esselle, J. Buckley","doi":"10.23919/eucap53622.2022.9769462","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769462","url":null,"abstract":"This paper presents a design of water-based flexible, optically transparent and frequency reconfigurable antenna having a unidirectional radiation pattern. The proposed antenna incorporates a dipole radiator on top of a reflector plane that makes the radiation unidirectional. The reflector is constructed from pure water enclosed inside a circular cavity made of polydimethylsiloxane (PDMS), which consists of several ring chambers arranged concentrically. Frequency tuning operation is achieved by an innovative mechanical tuning mechanism involving controlling the water configuration inside the circular cavity. Depending upon the presence or absence of the water in different chambers, the resonance frequency changes accordingly while maintaining the radiation pattern unidirectional. Detail simulation investigation of the proposed technique is presented in this paper.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121068469","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}
引用次数: 0
Dual-Linearly Polarized Wideband Printed Planar Monopole Antenna 双线极化宽带印刷平面单极天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769065
Pedro Falcão, Custódio Peixciro
{"title":"Dual-Linearly Polarized Wideband Printed Planar Monopole Antenna","authors":"Pedro Falcão, Custódio Peixciro","doi":"10.23919/eucap53622.2022.9769065","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769065","url":null,"abstract":"Design, fabrication and test of a dual-linearly polarized wideband printed planar monopole antenna is presented. The proposed configuration consists of two orthogonal CPW-fed modified octagonal monopoles with low mutual coupling. It is developed to be used in a wearable antenna system application to probe the electromagnetic field, with frequency in the range 0.7-3.5 GHz (5:1 bandwidth), incident on a professional user. The reasonable agreement obtained between simulated and experimental results has validated the proposed design approach and provided the proof of concept.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124814256","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}
引用次数: 2
Compact, Multiband, Flexible Decagon Ring Monopole Antenna for GSM/LTE/5G/WLAN Applications 紧凑，多频段，灵活的十角形环单极天线，适用于GSM/LTE/5G/WLAN应用
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769581
J. Kulkarni, A. Alharbi, C. Sim, J. Anguera
{"title":"Compact, Multiband, Flexible Decagon Ring Monopole Antenna for GSM/LTE/5G/WLAN Applications","authors":"J. Kulkarni, A. Alharbi, C. Sim, J. Anguera","doi":"10.23919/eucap53622.2022.9769581","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769581","url":null,"abstract":"The design of linearly polarized, flexible, multi-band decagon ring monopole antenna is proposed. The decagon ring monopole antenna incorporates a decagon ring having a thickness of 5 mm encircling a chamfered patch to generate multiband linear polarized waves. These radiators are excited by coplanar waveguide (CPW) fed based technique to induce two resonances at 2.20 GHz and 4.10 GHz covering bandwidth requirement of Global System for Mobile (GSM) 1800, Long Term Evolution (LTE) 2300/2600, Fifth Generation (5G) and WLAN bands. The simulated outcomes confirm the −10 dB impedance bandwidth of 48.84% (1.64 – 2.70 GHz) and 43.01% (3.65 – 5.65 GHz) at resonating frequency of 2.20 GHz and 4.10 GHz, respectively. Further, the bending analysis validates that the impedance matching and radiation performance of decagon ring antenna have minimal impact on the operating bands.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124933418","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}
引用次数: 4
Miniaturized CORPS-BFN to feed OLAF SAR Instrument 小型化的CORPS-BFN馈入OLAF SAR仪器
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769584
Carlos Biurrun-Quel, J. Iriarte, I. Ederra, C. del-Río
{"title":"Miniaturized CORPS-BFN to feed OLAF SAR Instrument","authors":"Carlos Biurrun-Quel, J. Iriarte, I. Ederra, C. del-Río","doi":"10.23919/eucap53622.2022.9769584","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769584","url":null,"abstract":"A miniaturization of a CORPS-BFN (Coherently Radiating Periodic Structures - Beam Forming Network) to properly feed OLAF (OverLapped subArray Fed) antenna for SAR Instrument at L-Band is presented. The original beam-forming network was based on 4-ports Gysel power combiner/divider implemented in a suspended stripline technology, and in this work a strong miniaturization technique has been applied to fit it in the desired lattice of 230 mm, which is slightly less than a wavelength of the higher frequency of the system (1.215-1.3 GHz). The minimized version still provides low insertion and return losses, high isolation between input/output ports and the required overlapping between the different equivalent beams.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125053519","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}
引用次数: 1
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