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An Efficient Strategy for Distributing the Mesh of Parallel Electromagnetic Solvers Based on the AIM 基于AIM的并联电磁求解器网格有效分布策略
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9768912
Damian Marek, Shashwat Sharma, P. Triverio
{"title":"An Efficient Strategy for Distributing the Mesh of Parallel Electromagnetic Solvers Based on the AIM","authors":"Damian Marek, Shashwat Sharma, P. Triverio","doi":"10.23919/eucap53622.2022.9768912","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9768912","url":null,"abstract":"Parallel electromagnetic solvers require efficient strategies to distribute the mesh of large structures encountered in advanced antenna designs. In addition, parallel solvers based on the adaptive integral method (AIM) require processes to access additional mesh entities that lie within the near region of their mesh partition. In this paper, we propose a parallel solution for loading, processing, partitioning, and redistributing the mesh of AIM-based solvers. The proposed method is demonstrated on problems as large as 200 wavelengths, with up to 200 million unknowns, and up to 8000 cores involved.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"13 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":"134594291","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
Multi-standards Slot-based Antenna Design for NB-IoT and LTE-M Applications 面向NB-IoT和LTE-M应用的多标准槽型天线设计
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769285
R. Hussain, M. Abou-Khousa, M. U. Khan, M. Sharawi
{"title":"Multi-standards Slot-based Antenna Design for NB-IoT and LTE-M Applications","authors":"R. Hussain, M. Abou-Khousa, M. U. Khan, M. Sharawi","doi":"10.23919/eucap53622.2022.9769285","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769285","url":null,"abstract":"In this paper, a highly miniaturized folded slot-based antenna is presented for internet of things (IoT) applications. It consists of meandered slot with folded structure along with varactor diode loading. Miniaturization is obtained using a unique combination of meandered slot with folded structure that is reactively loaded with varactor diode. The antenna exhibits dual-bands operation covering frequency bands from 730~965 MHZ and 1250~1940 MHz. A single varactor diode is used to obtain a continuous frequency sweep over both bands. The proposed antenna is best suited for next generation 5G IoT applications. The proposed antenna design has a total board dimensions of 27×27 mm2.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"10 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":"134320006","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
Path Loss Measurements and Modelling in a Citrus Plantation in the 1800 MHz, 3.5 GHz and 28 GHz in LoS 1800mhz、3.5 GHz和28ghz LoS下柑橘种植园路径损耗测量与建模
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769016
L. Juan-Llácer, J. Molina-García-Pardo, A. Sibille, S. A. Torrico, Luís Martínez Rubiola, M. Martínez-Inglés, J. Rodríguez, J. Pascual-García
{"title":"Path Loss Measurements and Modelling in a Citrus Plantation in the 1800 MHz, 3.5 GHz and 28 GHz in LoS","authors":"L. Juan-Llácer, J. Molina-García-Pardo, A. Sibille, S. A. Torrico, Luís Martínez Rubiola, M. Martínez-Inglés, J. Rodríguez, J. Pascual-García","doi":"10.23919/eucap53622.2022.9769016","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769016","url":null,"abstract":"Agriculture 4.0 is going to represent a massive deployment of sensors, so efficient planning of radiocommunication systems in this type of environment will be necessary. In this work, the measured path loss in a LoS condition, with the transmitter and receiver heights below the trees height, at a citrus plantation in the 1800 MHz, 3.5 GHz and 28 GHz frequency bands using a two-ray model in the vertical plane and the FI (Floating Intercept) and the CI (Close-In reference) slope models is analysed. Results show that, in the 28 GHz band, the direct and reflected-from-soil contribution may be enough to estimate the path loss for all the measure distance range, however, in the 1800 MHz and 3.5 GHz bands the multiple-scattering contributions from trees need to be considered after some distance between the transmitter and receiver. Furthermore, a guiding effect has been observed only in the 1800 MHz band.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"25 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":"131542620","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
A Compact Loaded DETSA Antenna With Enhanced Directivity Using Characteristic Modes Optimization 利用特性模式优化增强指向性的紧凑加载DETSA天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769283
H. Jaafar, J. Pintos, C. Delaveaud
{"title":"A Compact Loaded DETSA Antenna With Enhanced Directivity Using Characteristic Modes Optimization","authors":"H. Jaafar, J. Pintos, C. Delaveaud","doi":"10.23919/eucap53622.2022.9769283","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769283","url":null,"abstract":"This paper presents the design of an Ultra Wideband (UWB) antenna mainly dedicated for Ground Penetrating Radar (GPR) application in the frequency band between 150 MHz up to 550 MHz. With its compact electrical size in the low band, the initial double exponentially tapered slot antenna (DETSA) exhibits a low directivity and Front-to-Back ratio. With the guidance of the Characteristic Modes Analysis (CMA), it was possible to identify the best loading position as well as the optimized load values to enhance these antennas properties. The optimized loaded DETSA demonstrated a significant directivity enhancement and a Front-to-Back ratio that exceeds 4dB inside the band.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"26 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":"131760136","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
Designing a Microwave Moisture Content Sensor for Carasau Bread: A Feasibility Study 用于卡拉索面包的微波水分传感器的可行性研究
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769280
G. Muntoni, A. Fedeli, M. B. Lodi, M. Simone, A. Randazzo, G. Mazzarella, A. Fanti
{"title":"Designing a Microwave Moisture Content Sensor for Carasau Bread: A Feasibility Study","authors":"G. Muntoni, A. Fedeli, M. B. Lodi, M. Simone, A. Randazzo, G. Mazzarella, A. Fanti","doi":"10.23919/eucap53622.2022.9769280","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769280","url":null,"abstract":"The design and numerical simulations of a microwave sensor for the moisture content of traditional Carasau bread is presented in this paper. The results highlight the ability of a simple patch antenna to discriminate small percentage variations in water content in the food product, avoiding misinterpretations due to other parameters modifications, such as distance of the sensor and thickness of the bread sample.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"46 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":"131820407","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
A Reference Model for Channel Sounder Performance Evaluation, Validation and Comparison 信道测深仪性能评估、验证和比较的参考模型
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769264
S. Wittig, M. Peter, W. Keusgen
{"title":"A Reference Model for Channel Sounder Performance Evaluation, Validation and Comparison","authors":"S. Wittig, M. Peter, W. Keusgen","doi":"10.23919/eucap53622.2022.9769264","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769264","url":null,"abstract":"In this paper, we propose a detailed generic reference plane model for performance evaluation and system validation of radio channel sounders. It allows to abstractly describe a broad variety of channel sounder implementations and architectures in a common framework, thus facilitating systematic evaluations and comparisons. To illustrate the utility of the concept, we present the mapping of two practical channel sounder realizations—one time domain and one frequency domain—to the model, along with selected performance metrics defined on its reference planes. For the two presented channel sounders, we give measurement examples for these metrics.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"24 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":"132796215","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
Design of a Linearly Dual-Polarized and Dual-Wideband Multi-Ring Microstrip Antenna Fed by Two L-Probes for a Small Ground Plane 小地平面双l探针馈电线性双极化双宽带多环微带天线设计
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769428
Y. Kimura, S. Saito, Y. Kimura
{"title":"Design of a Linearly Dual-Polarized and Dual-Wideband Multi-Ring Microstrip Antenna Fed by Two L-Probes for a Small Ground Plane","authors":"Y. Kimura, S. Saito, Y. Kimura","doi":"10.23919/eucap53622.2022.9769428","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769428","url":null,"abstract":"This paper presents design of a linearly dual-polarized and dual-wideband multi-ring microstrip antenna (MR-MSA) fed by two L-probes for a small ground plane. The proposed antenna is composed of two circular ring patches with a different size printed on the top and middle layers and two L-shaped probes for feeding arranged orthogonally in the bottom layer with a large thickness of the triple-layered dielectric substrate for linearly dual-polarized and dual-wideband operation. Furthermore, in order to obtain stable gain characteristics for a large ground plane, the MR-MSA is surrounded by the cavity structure. In this paper, the dual-band and wideband MR-MSA fed by two L-probes for a small ground plane is considered by using numerical simulation with ANSYS HFSS. The design frequencies of the MR-MSA are around 4.5 GHz and 5.5 GHz. The simulated results reveal that the cavity provides stable gain characteristics for a side of the ground plane and the substrate more than 0.85 wavelengths at the center frequency of the lower band. It is also confirmed that better performance is obtained by the MR-MSA without the cavity for a smaller size of the ground plane and the substrate.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"19 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":"131069702","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
Reconfigurable FSS with a Switchable Passband for Space Applications in X and Ka Bands 具有可切换通带的可重构FSS，用于X和Ka波段的空间应用
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769497
M. Abdollahvand, E. Martinez‐de‐Rioja, J. Encinar, Kanishka Katoch, A. Ebrahimi, Saptarshi Ghosh
{"title":"Reconfigurable FSS with a Switchable Passband for Space Applications in X and Ka Bands","authors":"M. Abdollahvand, E. Martinez‐de‐Rioja, J. Encinar, Kanishka Katoch, A. Ebrahimi, Saptarshi Ghosh","doi":"10.23919/eucap53622.2022.9769497","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769497","url":null,"abstract":"In this work, an active frequency selective surface (FSS) is proposed for multiband space antennas in X and Ka bands. The FSS offers three reflection bands at 20 and 30 GHz (uplink and downlink frequencies of Ka-band satellites) and presents a switchable passband at 10 GHz. The FSS unit cell is made up of three metallic layers, and four PIN diodes on the bottom layer are used to control the switching between transmission and reflection in X band. The FSS performance has been studied through an equivalent circuit model. The FSS supports dual polarization and shows a robust spectral response for incidence angles of up to 30°.","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":"130843941","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
Design and Measurement of a Bandwidth Enhanced Quad-Ridged OMT 带宽增强四脊OMT的设计与测量
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769398
K. Kotzé, P. Meyer, W. Steyn
{"title":"Design and Measurement of a Bandwidth Enhanced Quad-Ridged OMT","authors":"K. Kotzé, P. Meyer, W. Steyn","doi":"10.23919/eucap53622.2022.9769398","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769398","url":null,"abstract":"Orthomode transducers form an integral part of any receiver system, especially for high sensitivity, wideband applications such as reflector feed antennas for radio astronomy. This paper presents an improvement on the quadruple-ridged OMT that has formed the basis for many high performance reflector feeds systems. The improvement relies on the freedom offered by SLM 3D-printing to design quadruple-ridged waveguides with a wider single mode bandwidth than conventional square/circular ridged waveguides. A prototype quad-ridged OMT is designed and manufactured to operate over 3.5 - 12.3 GHz, the ngVLA Band 2. The manufacturing and measurement of the prototype is discussed in detail with recommendations for future designs. The basic design of the proposed OMT can be customised to attain good performance over more than a decade bandwidth, or used as a basis for high performance narrowband applications.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"12 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":"132906029","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
Accuracy assessment of water vapor and cloud attenuation estimated from ERA5 single level parameters at two sites with large difference of altitude ERA5单水平参数估算两个大海拔差站点水汽和云衰减的精度评价
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769021
G. Siles, Juan Pablo Arciénega, Yasmín Balderrama
{"title":"Accuracy assessment of water vapor and cloud attenuation estimated from ERA5 single level parameters at two sites with large difference of altitude","authors":"G. Siles, Juan Pablo Arciénega, Yasmín Balderrama","doi":"10.23919/eucap53622.2022.9769021","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769021","url":null,"abstract":"ERAS reanalysis provides meteorological parameters that can help to predict atmospheric propagation effects. We investigate the accuracy of using ERA5 single level parameters, $TCWV$ and $TCLW$, to calculate water vapor and cloud attenuation, respectively, in El Alto (4065 m.a.s.l, Bolivia) and Madrid (633 m.a.s.l, Spain), locations having different climatological conditions. The assessment is performed using as reference the attenuation predicted by physical models combined with atmospheric vertical profiles from radiosondes: 4 years (El Alto) and 8 years (Madrid). The most recent global prediction models from ITU-R are also implemented to complete testing analysis: P.676-12 and P.804-8 global maps based methods. The results obtained show that water vapour attenuation from $TCWV$ predict statistics than can be used with small errors. Cloud attenuation from $TCLW$ show large discrepancies in El Alto. However, in Madrid, good agreement with RAOBS-based statistics is observed when using Salonen08 Tunned model as cloud detection model.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"36 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":"133338140","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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