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

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Comparison of Effective Permittivity Retrieval Methods of 3D-Printed Unit Cells for Dielectric Resonator Antenna Applications 用于介质谐振器天线的3d打印单元胞的有效介电常数检索方法比较
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133663
Gaëtan Antoine, Bruno De Araujo, R. Pascaud, C. Morlaas, A. Chabory, V. Laquerbe, G. Mazingue
{"title":"Comparison of Effective Permittivity Retrieval Methods of 3D-Printed Unit Cells for Dielectric Resonator Antenna Applications","authors":"Gaëtan Antoine, Bruno De Araujo, R. Pascaud, C. Morlaas, A. Chabory, V. Laquerbe, G. Mazingue","doi":"10.23919/EuCAP57121.2023.10133663","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133663","url":null,"abstract":"In this paper, three methods to retrieve the effective permittivity of 3D-printed unit cells for dielectric resonator antenna (DRA) applications are compared: Maxwell Garnett approximation (MGA), S-parameters method, and plane wave expansion method (PWEM). More specifically, three common topologies are studied: simple cubic (SC), body-centered cubic (BCC) and face-centered cubic (FCC). From numerical analyses, we explain which method is the most appropriate for designing a DRA using 3D-printed periodic unit cells.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"111 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":"115241948","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
Evaluation of the Influence of the Measuring Person on the Assessment of Mobile Radio Exposure With an Isotropic Measurement Probe 用各向同性测量探头评估测量人员对移动无线电暴露评估的影响
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133092
Thanh Tam Julian Ta, Anna-Malin Schiffarth, D. Heberling
{"title":"Evaluation of the Influence of the Measuring Person on the Assessment of Mobile Radio Exposure With an Isotropic Measurement Probe","authors":"Thanh Tam Julian Ta, Anna-Malin Schiffarth, D. Heberling","doi":"10.23919/EuCAP57121.2023.10133092","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133092","url":null,"abstract":"An accurate exposure measurement is important to verify compliance with exposure safety limits. The presence of the measuring person can cause reflections on that person, which can affect the measured exposure and lead to misinterpretation of the actual exposure. Therefore, the influence of the measuring person on the exposure measurement with an isotropic probe is evaluated for wireless communication standards GSM, LTE and 5G in the sub-6 GHz frequency range and 5G in frequency range 2. For measurement-based investigation, measurements were carried out with and without a person. The results show an influence of the person on measured field strengths when examining individual measuring points. Usually, the local maximum field strength in a measurement volume is determined for exposure measurements. By comparing the maximum measured field strength of the comparative measurements, smaller influences of the measuring person results, which can nevertheless lead to a false evaluation of the actual exposure.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"4 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":"115479356","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
Asymmetric use of 8-legged Conventional Birdcage 不对称使用8条腿的传统鸟笼
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133582
Thomas Clerbois, Antoine Rampelbergh, Farzad Jabbarigargari, Chan-Sun Park, R. Abdeddaim, Christophe Craeye
{"title":"Asymmetric use of 8-legged Conventional Birdcage","authors":"Thomas Clerbois, Antoine Rampelbergh, Farzad Jabbarigargari, Chan-Sun Park, R. Abdeddaim, Christophe Craeye","doi":"10.23919/EuCAP57121.2023.10133582","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133582","url":null,"abstract":"In high-frequency magnetic resonance imaging (MRI) system, shaping of the magnetic field inside the body becomes an important challenge. The choice of the Radio-frequency (RF) coils and their design is essential if a quality image is expected. This paper presents the asymmetric use of a conventional Birdcage RF coil and answers the problem of homogeneity as well as localizing an off-centered region of interest (ROI).","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":"115710495","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
Radio Bursts in Residences During COVID-19: Measured Characteristics for Resiliency Testing 2019冠状病毒病期间住宅中的射电暴:用于弹性测试的测量特征
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133021
D. Kuester, Xifeng Lu, D. Gu
{"title":"Radio Bursts in Residences During COVID-19: Measured Characteristics for Resiliency Testing","authors":"D. Kuester, Xifeng Lu, D. Gu","doi":"10.23919/EuCAP57121.2023.10133021","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133021","url":null,"abstract":"We present an analysis of the time parameters observed in radio spectrum occupancy measurements of 13 residential sites from June 2020 through September 2021. The focus of the analysis is on implications for electromagnetic immunity testing of medical devices and household electronics. We demonstrate that the bursted nature of household transmissions, together with wide gap times between transmissions, stands in significant contrast to the continuous periodic disturbances used in immunity testing. Further, we identify that the most active band, 2.4GHz, is not yet prescribed as a test frequency in all immunity standards.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"519 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":"123120451","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
Space-Time Dense Multipath Components Modeling at mmWaves in Indoor Industrial Environments 室内工业环境毫米波时空密集多径分量建模
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133474
Frédéric Munoz, Gloria Makhoul, D. Gaillot, Claude Oestges, R. D’Errico
{"title":"Space-Time Dense Multipath Components Modeling at mmWaves in Indoor Industrial Environments","authors":"Frédéric Munoz, Gloria Makhoul, D. Gaillot, Claude Oestges, R. D’Errico","doi":"10.23919/EuCAP57121.2023.10133474","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133474","url":null,"abstract":"This paper presents the characterization and models of specular and dense multipath components in the millimeter wave channels for industrial scenarios. The results are obtained from measurements covering the 26 - 30 GHz bands and employing a massive virtual array. Two different high-resolution algorithms, SAGE and RiMAX, have been employed. Then, a beamforming on the dense component is performed to obtain their angular distribution. The results are compared in terms of large-scale parameter fitting.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"272 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":"124401612","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 Passive Multibeam Metasurface Antenna 无源多波束超表面天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133258
F. Alsolamy, N. Chahat, G. Chattopadhyay, A. Grbic
{"title":"A Passive Multibeam Metasurface Antenna","authors":"F. Alsolamy, N. Chahat, G. Chattopadhyay, A. Grbic","doi":"10.23919/EuCAP57121.2023.10133258","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133258","url":null,"abstract":"Recently, the mode conversion capabilities of meta-surfaces have been exploited to design cylindrical vector (radially-polarized) beam antennas, and orbital angular momentum (OAM) antennas. Motivated by these developments, we use mode-converting metasurfaces to design passive MIMO metasurface antennas. The MIMO antenna consists of a mode-converting metasurface atop a rectangular cavity that is fed by multiple waveguides. The metasurface itself comprises a cascade of electric sheets separated by dielectric spacers. The impedance profiles of the electric sheets are optimized such that each waveguide feed excites a specified beam. The excited beams are orthogonal to ensure isolation between the feeds. Furthermore, the proposed MIMO antennas can be used to design future MAB (multiple azimuth beams) SAR imaging systems.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"44 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":"124413471","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
Inverse Source and Scattering Solution with Phaseless Data: Near Field In-Silico Validation 无相数据逆源和散射解:近场计算机验证
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133792
S. Costanzo, G. Lopez, N. Nikolova, G. Di Massa
{"title":"Inverse Source and Scattering Solution with Phaseless Data: Near Field In-Silico Validation","authors":"S. Costanzo, G. Lopez, N. Nikolova, G. Di Massa","doi":"10.23919/EuCAP57121.2023.10133792","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133792","url":null,"abstract":"The solution of an inverse source problem usually embraces the microwave imaging context. Indeed, microwave imaging solutions require the incident field distribution within the imaging domain. In the field of microwave imaging with amplitude only data, a phaseless inverse source problem has been addressed, by combining a holography-based method, directly operating into the spatial domain, with a source reconstruction method. The combined method is tested for the field characterization of a series of source with different directivity levels. Then the field modeling strategy has been included within a phaseless inverse scattering solution and applied to a 3D in-silico test case.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"31 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":"114657454","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
Integrated Antenna Module for 5G Applications 5G应用集成天线模块
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133659
Zunnurain Ahmad, Khai Yuan Chang, Heinrich Heiss, H. Wohlmuth
{"title":"Integrated Antenna Module for 5G Applications","authors":"Zunnurain Ahmad, Khai Yuan Chang, Heinrich Heiss, H. Wohlmuth","doi":"10.23919/EuCAP57121.2023.10133659","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133659","url":null,"abstract":"This work presents an antenna integrated module operating in the 28 GHz frequency band. The module comprises of a 2x2 antenna array integrated with a beamforming transceiver chip operating in the 24 - 30 GHz range. The beamformer transceiver chip has in total eight transceiver channels and it excites four vertical and four horizontal polarizations in the dual polarized patch antennas array. A maximum EIRP of 35 dBm is achieved with this module in each polarization. The module can be cascaded to form a larger array for base station applications.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"40 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":"117114776","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
Electronically Reconfigurable Reflectarray Antennas for Mobile Troposcatter Communications 用于移动对流层散射通信的电子可重构反射天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133015
Jiahao Zhao, M. M. Honari, J. Booske, N. Behdad
{"title":"Electronically Reconfigurable Reflectarray Antennas for Mobile Troposcatter Communications","authors":"Jiahao Zhao, M. M. Honari, J. Booske, N. Behdad","doi":"10.23919/EuCAP57121.2023.10133015","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133015","url":null,"abstract":"Conventional tropospheric scattering (troposcatter) communications primarily use electrically large reflector antennas for point-to-point communications, which suffer from bulky volumes and difficulties in maintaining beam-pointing accuracy. Beam pointing and tracking problems in troposcatter communications applications may be alleviated by the aid of phased-array antennas at the transmit and receive locations. In this paper, we present an electronically reconfigurable reflectarray designed to perform accurate beam steering and tracking in trposcatter communications systems. This reflectarraty uses an electronically reconfigurable unit cell providing 2-bit reflection phase shift quantization. The unit cell consists of an E-shaped patch placed above a ground plane. The patch is connected to a reflecting circuit electronically controlled by three PIN diodes below the ground plane to provide 2-bit phase shift. The proposed unit cells can provide less than 0.55 dB/bit loss and less than 15° phase error at the target frequency range (5.8-6 GHz). Full-wave simulations of a 208-element reflectarray incorporating the proposed unit cell have demonstrated the performance feasibility of the design concept.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"52 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":"127146143","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
Millimeter-wave Scattering Mitigation Transmitarray for Unidirectional Cloaking of Obstacles 用于障碍物单向隐身的毫米波散射抑制发射阵列
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133505
Youngno Youn, Daehyeon Kim, Suho Chang, Jaehyun Choi, W. Hong
{"title":"Millimeter-wave Scattering Mitigation Transmitarray for Unidirectional Cloaking of Obstacles","authors":"Youngno Youn, Daehyeon Kim, Suho Chang, Jaehyun Choi, W. Hong","doi":"10.23919/EuCAP57121.2023.10133505","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133505","url":null,"abstract":"This paper presents a new concept of unidirectional scattering mitigation transmitarray (TA) using a single substrate frequency selective surface (FSS). This engineered electromagnetic surface formulates complementary fields for rendering obstacles to become electromagnetically-transparent without blockage modification. Spatial impedance distribution of the proposed TA is calculated by superposition and linearity. A double-layer FSS, which features wide tunable transmission phase shift range within 1-dB transmission loss, is implemented for proof-of-concept demonstration. The proposed cloaking technique is confirmed by full-wave simulations and measurements at 30.0 GHz.","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":"124997108","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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