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2023 17th European Conference on Antennas and Propagation (EuCAP)最新文献

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Compact Folded Meander-Line Harmonic Tag Antenna for Insect Tracking 用于昆虫跟踪的紧凑型折叠弯曲线谐波标签天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133399
Arjun Kumar, A. Lavrenko
{"title":"Compact Folded Meander-Line Harmonic Tag Antenna for Insect Tracking","authors":"Arjun Kumar, A. Lavrenko","doi":"10.23919/EuCAP57121.2023.10133399","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133399","url":null,"abstract":"This awork presents a novel single layer dual-band meander-line harmonic tag antenna implemented on a thin flexible substrate. The proposed prototype consists of folded asymmetric meander-line dipoles that are matched to a low-voltage Schottky diode to generate second harmonic frequency of 5.8 GHz when illuminated by a fundamental frequency of 2.9 GHz. The proposed tag achieves fractional bandwidth of 1.67% at 2.9 GHz with compact size of 0.14 × 0.12 of the wavelength. The proposed tag antenna has 2.09 dBi gain at 2.9 GHz and 1.38 dBi at 5.8 GHz.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"136 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":"122784046","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
Data Reduction in Linear Phased Array Diagnostic by a TR-MUSIC Based Approach 基于TR-MUSIC方法的线性相控阵诊断中的数据缩减
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133334
Mario Del Prete, M. A. Maisto, G. Leone
{"title":"Data Reduction in Linear Phased Array Diagnostic by a TR-MUSIC Based Approach","authors":"Mario Del Prete, M. A. Maisto, G. Leone","doi":"10.23919/EuCAP57121.2023.10133334","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133334","url":null,"abstract":"In this paper, the problem of linear phased array antenna diagnostics from a small number of near-field measurements is addressed. Thanks to a new method to collect measurements suitable for phased array, a TR-MUSIC based algorithm is explored. Finally, numerical examples show the effectiveness of the proposed method.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"106 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":"122459933","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
Ultra-Wideband Metasurface at SubTHz: Hardware Design and Reflection Optimization 亚太赫兹超宽带超表面:硬件设计和反射优化
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133193
Q. Luo, G. Alexandropoulos, Yonggang Zhou, Xianjun Ma
{"title":"Ultra-Wideband Metasurface at SubTHz: Hardware Design and Reflection Optimization","authors":"Q. Luo, G. Alexandropoulos, Yonggang Zhou, Xianjun Ma","doi":"10.23919/EuCAP57121.2023.10133193","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133193","url":null,"abstract":"In this paper, a novel ultra-wideband Reconfigurable Intelligent Surface (RIS) operating at the sub-THz frequency band is presented. The proposed design is based on the concept of the tightly coupled dipole for implementing each of the meta-surface’s unit cells. A radio-frequency (RF) switch is integrated into each of the RIS meta-elements, and by changing between its ON and OFF states, the polarization of each dipole is rotated by 180°, resulting in a 180° phase shift within a wide bandwidth. We present full-wave electromagnetic simulation and array synthesis results for the proposed RIS design, which showcase its efficient performance in terms of the operation bandwidth and beam steering capability. We also apply a reflection optimization approach to the designed 1-bit phase states for arbitrary beam pattern realization.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"83 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":"122965718","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
Investigating the use of the Supervised Descent Method for Electromagnetic Imaging in PEC Enclosed Chambers 研究监督下降法在PEC封闭腔室电磁成像中的应用
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133306
Seth Cathers, I. Jeffrey, C. Gilmore
{"title":"Investigating the use of the Supervised Descent Method for Electromagnetic Imaging in PEC Enclosed Chambers","authors":"Seth Cathers, I. Jeffrey, C. Gilmore","doi":"10.23919/EuCAP57121.2023.10133306","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133306","url":null,"abstract":"We consider the use of the Supervised Descent Method (SDM) for 2D transverse magnetic imaging inside perfect electric conductor (PEC) enclosed electromagnetic imaging problems. When the electromagnetic imaging region is surrounded by PEC, and the background permittivity is lossless, classic optimization-based inversion algorithms such as Contrast Source Inversion sometimes provide degraded results compared to those obtained from unbounded domains. The SDM, by learning average search directions based on a large synthetic data set, may be able to avoid certain local minima that normally trap other optimization methods. Through the use of synthetic examples, we show that SDM can provide improved performance within an enclosed chamber.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"33 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":"123003470","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
Discrete Turbulent Spectrum Modelling for 2D Split-Step Electromagnetic Propagation Schemes 二维分步电磁传播方案的离散湍流频谱建模
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133192
Victor Darchy, R. Douvenot, Hélène Galiègue, S. Jamme
{"title":"Discrete Turbulent Spectrum Modelling for 2D Split-Step Electromagnetic Propagation Schemes","authors":"Victor Darchy, R. Douvenot, Hélène Galiègue, S. Jamme","doi":"10.23919/EuCAP57121.2023.10133192","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133192","url":null,"abstract":"The multiple phase screen method is widely used for modelling the electromagnetic propagation in a turbulent medium. In this technique, the turbulent phase screens are classically generated from a continuous Von-Karman Kolmogorov scintillation spectrum. Recent works led to the development of an auto-coherent split-step wavelet propagation method based on a discrete formulation of the parabolic wave equation. In this configuration, the use of continuous spectra is no more suitable. In this paper, we propose an auto-coherent generation method of the turbulent phase screens. To do so, a discrete formulation of the classical Von-Karman Kolmogorov spectrum is introduced. The impact of the modelled turbulence is finally discussed through the computation of the log-amplitude variance to validate this approach.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"3 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":"122022402","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
Time Domain Analysis of PEEC Models Through the FFT Acceleration Technique 基于FFT加速技术的PEEC模型时域分析
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133157
Giuseppe Pettanice, Fabrizio Loreto, R. Valentini, Piergiuseppe Di Marco, Giulio Antonini
{"title":"Time Domain Analysis of PEEC Models Through the FFT Acceleration Technique","authors":"Giuseppe Pettanice, Fabrizio Loreto, R. Valentini, Piergiuseppe Di Marco, Giulio Antonini","doi":"10.23919/EuCAP57121.2023.10133157","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133157","url":null,"abstract":"This paper presents a novel approach to solve time domain Maxwell’s equation through the partial element equivalent circuit (PEEC) method. To achieve this, the matrix-vector products involving the full matrices describing magnetic and electric field couplings, namely partial inductances and coefficients of potential matrices, are performed exploiting the translational invariance of the physical interactions by resorting to the fast Fourier transform. The proposed approach is applied to time-stepping methods and to the methods based on the numerical inversion of the Laplace transform, requiring matrix-vector products in the complex plane when iterative solvers are adopted to handle a large number of unknowns. Then, the quality of this approach is validated by comparing the results with those obtained with a commercial solver based on the finite integration technique.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"34 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":"122163417","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
Development of Mechanically and Dielectrically Realistic Breast Models for Microwave Therapy and Healing Simulations 用于微波治疗和愈合模拟的机械和电介质逼真乳房模型的发展
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133807
Maria C. T. Gonçalves, M. Haberman, E. Porter, R. Conceição
{"title":"Development of Mechanically and Dielectrically Realistic Breast Models for Microwave Therapy and Healing Simulations","authors":"Maria C. T. Gonçalves, M. Haberman, E. Porter, R. Conceição","doi":"10.23919/EuCAP57121.2023.10133807","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133807","url":null,"abstract":"Simulations performed with computational breast models with realistic tissue properties, such as dielectric and mechanical properties, can provide relevant information regarding the cosmetic outcome of microwave therapy, and surgery on a personalized basis. Although the dielectric properties of breast tissues are well characterized, the mechanical properties reported in the literature, namely the Young’s moduli, encompass a wide range of values. In this work, we propose the extraction of the Young’s modulus from breast ultrasound elastography exams, which enables the integration of mechanical with dielectric properties in breast models. We present the framework developed to this end and an application example. Our framework allowed us to obtain an indication of the Young’s modulus of the tissue present in the ultrasound elastography exam. Although preliminary, these results indicate that it is possible to acquire quantitative and personalized information from conventional ultrasound devices without burdening physicians with extra examination. This framework is flexible and allows to realistically model several breast tissues with different Young’s moduli.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"25 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":"122227579","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
Nanosatellite SAR Preliminary System Design for New Zealand Maritime and Terrestrial Remote Sensing 新西兰海洋和陆地遥感纳米卫星SAR初步系统设计
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133174
Simone Mencarelli, A. Austin, M. Neve
{"title":"Nanosatellite SAR Preliminary System Design for New Zealand Maritime and Terrestrial Remote Sensing","authors":"Simone Mencarelli, A. Austin, M. Neve","doi":"10.23919/EuCAP57121.2023.10133174","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133174","url":null,"abstract":"The potential of nanosatellite radar sensors for illegal fishing vessel detection in the coastal waters and imaging on the land of New Zealand is investigated. It was found that for a sensor in Low Earth Orbit at an altitude of 500 km, with an antenna compatible in width with the longest side of a 3-U CubeSat, i.e., 0.3 m and a length of 2 m and a peak transmitted power of 200 W; adequate detection performance can be obtained over a swath of up to 60 km at an incidence angle of 36° using an ambiguous acquisition mode. Alternative solutions for different looking angles, but smaller swaths are also found to be viable. A design method and the resulting imaging performance for a land non-ambiguous imaging mode are also presented.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"1 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":"129852051","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 Tethered Power Supply Concept for Large-Scale UAV-Based Antenna Near-Field Measurements 大型无人机天线近场测量的系留电源概念
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133589
S. Punzet, T. Eibert
{"title":"A Tethered Power Supply Concept for Large-Scale UAV-Based Antenna Near-Field Measurements","authors":"S. Punzet, T. Eibert","doi":"10.23919/EuCAP57121.2023.10133589","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133589","url":null,"abstract":"Unmanned aerial vehicles (UAVs) gain popularity in the antenna measurement domain. Measuring the near field (NF) of large-scale antennas or antenna arrays can take up to several hours. In contrast, the non-stop flight time of a battery powered UAV is commonly limited to the order of tens of minutes. In order to overcome this limitation, the concept and implementation of a tethered power supply for UAVs are presented. The resulting non-stop flight time allows for faster and denser sampling of the antenna under test (AUT) NF without the corresponding start and land maneuvers for replacing the battery. Detailed electromagnetic interference (EMI) measurements, as well as a fallback battery power solution for safe and reliable operation of the UAV are presented.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"16 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":"128404201","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
Efficient Integral Equation Approach for the Modelling of Glide-Symmetric Structures 滑模对称结构建模的有效积分方程方法
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133317
M. Petek, J. Rivero, J. A. Vasquez-Tobon, G. Valério, O. Quevedo–Teruel, F. Vipiana
{"title":"Efficient Integral Equation Approach for the Modelling of Glide-Symmetric Structures","authors":"M. Petek, J. Rivero, J. A. Vasquez-Tobon, G. Valério, O. Quevedo–Teruel, F. Vipiana","doi":"10.23919/EuCAP57121.2023.10133317","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133317","url":null,"abstract":"For the design of advanced microwave and antenna components, efficient and accurate electromagnetic methods are required. In this work, we present a technique to fast simulate mirror- and glide-symmetric periodic structures. More concretely, a novel Green’s function is proposed which allows to reduce the computational domain to one half of the unit cell. Full dispersion diagrams are computed for metallic glide- and mirror-symmetric structures with three stages of mesh refinement. The results converge with the meshing and agree well with conventional eigenmode analyses.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"18 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":"128426026","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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