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Jordan Block Eigenvalue Shift in the Marching-on-in-Time Electric Field Integral Equation 随时行进电场积分方程中的Jordan块特征值移位
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133600
Petrus W. N. van Diepen, R. Dilz, M. V. van Beurden
{"title":"Jordan Block Eigenvalue Shift in the Marching-on-in-Time Electric Field Integral Equation","authors":"Petrus W. N. van Diepen, R. Dilz, M. V. van Beurden","doi":"10.23919/EuCAP57121.2023.10133600","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133600","url":null,"abstract":"The Marching-on-in-Time Electric Field Integral Equation (MOT-EFIE) and its time differentiated variant (MOT-TDEFIE) both suffer from the linear-in-time instability caused by dimension-two Jordan blocks in the companion-matrix representation. We prove that these Jordan blocks are centered around a specific eigenvalue that depends on the recurrence relation between the interaction matrices. By adapting the recurrence relation, we can move the pertaining eigenvalues of the Jordan blocks to the interior of the unit circle and therefore remove the linear-in-time instability from the scheme. We provide numerical evidence to further illustrate these findings.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127783811","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 multi-disciplinary approach to the Radiowave propagation research – A Tribute to Frank Silvio Marzano 无线电波传播研究的多学科方法-致敬弗兰克西尔维奥马扎诺
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133139
N. Pierdicca
{"title":"A multi-disciplinary approach to the Radiowave propagation research – A Tribute to Frank Silvio Marzano","authors":"N. Pierdicca","doi":"10.23919/EuCAP57121.2023.10133139","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133139","url":null,"abstract":"the paper gives a review of the scientific, educational and organizational contributions of a brilliant researcher and an extremely nice person whom many regret for his passing. Prof. Marzano was an example of how electromagnetism and radiopropagation can contribute to improve our life through a better monitoring of the environment and an improvement of our communication tools.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127786672","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 Planar Pattern Reconfigurable Yagi-Uda Antenna Using Electrically Biased Vanadium Dioxide (VO2) 基于电偏置二氧化钒(VO2)的平面可重构Yagi-Uda天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133409
Grant Gourley, E. Kumi-Barimah, G. Jose, Dimitris E. Anagnostou
{"title":"A Planar Pattern Reconfigurable Yagi-Uda Antenna Using Electrically Biased Vanadium Dioxide (VO2)","authors":"Grant Gourley, E. Kumi-Barimah, G. Jose, Dimitris E. Anagnostou","doi":"10.23919/EuCAP57121.2023.10133409","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133409","url":null,"abstract":"A proof-of-concept vanadium dioxide (VO2) enabled planar pattern reconfigurable Yagi-Uda antenna operating at 5.8 GHz has been designed based on measured VO2 conductivity values of a 750 nm thick film.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126252712","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
GPS-Aided Electronically Controlled 360° Beam-Switching Antenna System gps辅助电子控制360°波束切换天线系统
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133023
Charles Ng, Yiqi An, Lap-On Wong, Chi-Yuk Chiu, R. Murch
{"title":"GPS-Aided Electronically Controlled 360° Beam-Switching Antenna System","authors":"Charles Ng, Yiqi An, Lap-On Wong, Chi-Yuk Chiu, R. Murch","doi":"10.23919/EuCAP57121.2023.10133023","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133023","url":null,"abstract":"In this paper, a pattern reconfigurable antenna system operating at 2.4 GHz is proposed for enhancing the connectivity of unmanned surface vessels (USVs). The proposed system is assumed to be located on a USV which is able to determine the relative position of the base station (BS) antenna and to select one out of four directional antenna arrays electronically. The appropriate array can then be directed to the BS antenna according to the associated Global Positioning System (GPS) information. The performance of individual components, including the proposed antenna array and switching circuit are first presented. Then, a comparison of the proposed entire GPS-aided electronically controlled beam-switching antenna system and a conventional dipole is carried out. The experimental result shows that the proposed system can potentially provide more than double communication distance with respect to the same received signal strength indicator (RSSI).","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126473481","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 Wideband Automotive 4x4-MIMO 5G Antenna System with Decoupling Circuit for a Single Shark Fin Cover 一种带解耦电路的宽带汽车4x4-MIMO 5G天线系统，用于单个鱼翅盖
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10132927
Mirco Hardman, S. Lindenmeier
{"title":"A Wideband Automotive 4x4-MIMO 5G Antenna System with Decoupling Circuit for a Single Shark Fin Cover","authors":"Mirco Hardman, S. Lindenmeier","doi":"10.23919/EuCAP57121.2023.10132927","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10132927","url":null,"abstract":"For the fifth generation of mobile services (5G) compact solutions of 4x4 MIMO antenna systems are required fitting into mounting positions with small volume requirement. Herein we present a new set of four individual MIMO antennas which are arranged in a line of 19.5 cm length which can be integrated into one single shark fin antenna cover. The three larger antennas cover a frequency range from 617 MHz to 960 MHz (low band) and the four antennas cover the frequency range between 1.7 GHz to 6 GHz (high band). For increased performance in low band, antennas are connected via single-stage low-loss decoupling and matching circuits. With that, transmission factors of less than -14dB and reflection factors of -10dB are typically obtained in low band, while at band limits transmission factors of -11dB and reflection factors of -6 dB are not exceeded. In the high band, all antennas meet a -10 dB matching requirement and are well decoupled with less than -15dB. For the low band, the low loss decoupling- and matching-network even yields partly improvements in total efficiency. Simulated and measured results show the improvements due to the decoupling and matching network in good agreement.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126478444","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
Cluster Association for 3D Environment Based on 60 GHz Indoor Channel Measurements 基于60ghz室内信道测量的三维环境聚类关联
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133330
Hang Mi, B. Ai, R. He, Raied Caromi, Jian Wang, Anuraag Bodi, C. Gentile, Yang Miao
{"title":"Cluster Association for 3D Environment Based on 60 GHz Indoor Channel Measurements","authors":"Hang Mi, B. Ai, R. He, Raied Caromi, Jian Wang, Anuraag Bodi, C. Gentile, Yang Miao","doi":"10.23919/EuCAP57121.2023.10133330","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133330","url":null,"abstract":"In this paper, we present a ray tracing (RT) assisted multipath cluster association method. This work is based on an indoor channel measurement at 60 GHz, where a light detection and ranging (LiDAR) sensor was co-located with channel sounder and time-synchronized point cloud was captured to describe environmental information. Based on the point cloud, a 3D environment is reconstructed and fed into RT simulation. Then multipath components (MPCs) estimated from the measured channel and that from the RT are clustered, respectively. A novel cluster association algorithm is then proposed to associate the clusters between the measurements and RT. The interaction objects in the 3D environment can be found through this association. From cluster association results, we can better understand the relationship between measured radio channel, environment, and channel characteristics in an automatic manner. As an example, the indoor multi-bounce scattering and composite channel parameters are investigated.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126549219","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
Wideband dielectric properties reconstruction from MR acquisitions 宽带介电性质重建从MR采集
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133794
F. Liporace, M. Cavagnaro
{"title":"Wideband dielectric properties reconstruction from MR acquisitions","authors":"F. Liporace, M. Cavagnaro","doi":"10.23919/EuCAP57121.2023.10133794","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133794","url":null,"abstract":"The growing use and development of medical techniques based on the application of electromagnetic fields (EMF) has increased the necessity of an accurate reconstruction of the dielectric properties of human tissues. These properties in fact represent the response of the biological system when it is exposed to an external EMF. Given the complexity and the heterogeneity of human tissues, it is required to use in-vivo data that are specific for each subject. Since traditional techniques are not able to reach this aim, an alternative method based on MR is here considered.In this work a model is proposed for the reconstruction of dielectric properties of biological tissues from MR acquisitions. The proposed dielectric model is wideband, specific, and applicable in vivo and can be used for those medical techniques that need a precise dielectric characterization of the subjects.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128061629","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
Design of a Cardiopulmonary Antenna for Vital Signs Monitoring Robust to Different Subjects 一种适用于不同受试者的心肺生命体征监测天线的设计
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133202
João MP Cardoso, P. Pinho, C. Gouveia, Daniel Albuquerque
{"title":"Design of a Cardiopulmonary Antenna for Vital Signs Monitoring Robust to Different Subjects","authors":"João MP Cardoso, P. Pinho, C. Gouveia, Daniel Albuquerque","doi":"10.23919/EuCAP57121.2023.10133202","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133202","url":null,"abstract":"With the advancement of wireless diagnosis and treatment technologies, antennas deployed close to the human body are now widely used. The use of on-body antennas, along with other technologies, presents itself as an innovative method for detecting and monitoring vital signs. These antennas can be attached directly on the body or on clothes, making it comfortable to use and less invasive when compared to conventional methods, allowing at-home monitoring of elderly patients or high risk workers with a single antenna. In this paper, a robust high bandwidth patch antenna was developed to operate in the dedicated Industrial, Scientific and Medical frequency band, namely at 2.45 GHz, capable of monitoring vital signs in any subject. This work presents the design and results of a robust cardiopulmonary antenna, to be further used to monitor the respiratory rate of five different subjects, each one with different physiognomy.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125754154","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
Design Methodology for Wideband Bowtie Patch Antenna for 5G mmWave Applications 面向5G毫米波应用的宽带领结贴片天线设计方法
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10132909
A. Azari, A. Skrivervik, H. Aliakbarian
{"title":"Design Methodology for Wideband Bowtie Patch Antenna for 5G mmWave Applications","authors":"A. Azari, A. Skrivervik, H. Aliakbarian","doi":"10.23919/EuCAP57121.2023.10132909","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10132909","url":null,"abstract":"Millimeter wave (mmWave) frequencies has become a research area of interest in recent years because of providing broad available bandwidth and thus higher data rates. Wideband mmWave antenna is one of the important development areas in wireless communication systems. Bowtie patch is a low profile planar antenna with wideband characteristics. This contribution presents a classic design method for bowtie patch antenna in mmWave frequencies for the purpose of achieving maximum possible bandwidth and compactness, based on the combination of patch antenna and bowtie antenna theories. The proposed method is illustrated with the design of a dual polarized antenna element that can be a good candidate for mmWave wireless technologies such as 5G, radar and satellite communications. The design performance has been compared with the recent similar literary works and shows advantageous in terms of bandwidth and size.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126015606","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
Daily Thermo-Elastic Distortion Characterisation during Antenna In-orbit Test for Geostationary Satellites 地球静止卫星天线在轨试验日热弹性畸变特性
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133729
A. Iacono, B. Pinsard
{"title":"Daily Thermo-Elastic Distortion Characterisation during Antenna In-orbit Test for Geostationary Satellites","authors":"A. Iacono, B. Pinsard","doi":"10.23919/EuCAP57121.2023.10133729","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133729","url":null,"abstract":"Before bringing a new satellite into service after launch, in-orbit testing (IOT) is essential to compare in-flight performance with on-ground references. Antenna IOT is essential to remove any mechanical depoint in order to optimize the alignment of the antenna and therefore RF performance. Depending on the frequency band of operation, thermo-elastic distortion (TED) evaluations could play an important role into the determination of the correct amount of mechanical correction to apply to the antenna. It is in fact essential to discriminate between a fixed contribution derived from an authentic geometry misalignment and an expected TED behavior. The aim of this paper is to describe the methodology to show the correlation between the antenna thermal behaviour, as-measured in-orbit, and its predictions over a period of 24 hours for the Inmarsat-6 F1 Ka-band commercial payload.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127940016","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
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