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2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)最新文献

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Study on the Composite EM Scattering from Sea Surface with a Ship Target based on Scale Model 基于比例模型的舰船目标海面复合电磁散射研究
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753226
Y. Zhao, Y. Q. Zhang, T. Yang, G. Wu
{"title":"Study on the Composite EM Scattering from Sea Surface with a Ship Target based on Scale Model","authors":"Y. Zhao, Y. Q. Zhang, T. Yang, G. Wu","doi":"10.1109/isape54070.2021.9753226","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753226","url":null,"abstract":"The main purpose of this work is to use the scale model to study the composite scattering from sea surface and ship target based on the refined facet scattering field model (RFSFM) together with the geometrical optics and physical optics (GO-PO) method. The feasibility and error of freshwater used in the scale model are analyzed by the comparisons of Fresnel reflection coefficient between the freshwater and seawater, as well as the radar cross section (RCS) of sea surface and coupling field, between the prototype composite scene and scale model. The numerical results show that the freshwater used in the scale model to investigate the composite scattering from a ship target on sea surface is feasible when the frequency is larger than 10GHz, which could provide the theoretical basis for the scale model measurement.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122863877","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
All Metal Focused Transmitarray Antenna for Microwave Measurements 用于微波测量的全金属聚焦发射阵列天线
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753449
Zeyu Zhang, Ruipeng Xue
{"title":"All Metal Focused Transmitarray Antenna for Microwave Measurements","authors":"Zeyu Zhang, Ruipeng Xue","doi":"10.1109/isape54070.2021.9753449","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753449","url":null,"abstract":"A focused transmitarray antenna adopting double double scoop-shaped elements is presented. The transmitarray is composed of four square phase shift layers and three metal waveguide layers stacked on each other. Folded interdigital structure, which not only greatly reduces the periodic size of the element, but also improves the oblique incidence stability of the element. It can be seen from the results that the spatial resolution of the proposed antenna at the center frequency is about 1.0 λ0. The antenna has good focused performance and is suitable for various microwave measurement devices.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125191194","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
Propagation characteristics of Bessel Gaussian localized wave in turbulent atmosphere 湍流大气中贝塞尔高斯局域波的传播特性
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9752786
Ya Guo, Lu Bai, Mingjian Cheng
{"title":"Propagation characteristics of Bessel Gaussian localized wave in turbulent atmosphere","authors":"Ya Guo, Lu Bai, Mingjian Cheng","doi":"10.1109/ISAPE54070.2021.9752786","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9752786","url":null,"abstract":"Based on the generalized Huygens-Fresnel principle, the average light intensity of the Bessel Gaussian localized wave is calculated. The intensity evolution and beam broadening effect of Bessel Gaussian localized wave in atmospheric turbulence are studied by numerical simulation. The results show that the atmospheric turbulence effect of Bessel Gaussian localized wave can be improved by adjusting the light source parameters and turbulence parameters. The research results provide a more ideal development direction for improving the spectrum utilization and information capacity of the existing free-space optical communication technology.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125364046","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
Research on Influence of Charged Sand Atmosphere on the Performance of Ku and Ka Band Radar 带电沙大气对Ku和Ka波段雷达性能影响的研究
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753127
Yang Ruike, Yue Xilin, Wu Fuping, Liu Renxian, Z. Ye
{"title":"Research on Influence of Charged Sand Atmosphere on the Performance of Ku and Ka Band Radar","authors":"Yang Ruike, Yue Xilin, Wu Fuping, Liu Renxian, Z. Ye","doi":"10.1109/isape54070.2021.9753127","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753127","url":null,"abstract":"In arid and semi-arid areas, in the atmosphere carrying sand particles, in order to make the radar work all-weather, it is necessary to research the properties of microwave propagation in the sand atmosphere and the impact on the radar performance. The absorption, scattering and backscattering of sand particles carrying different size and different charge are analyzed by Mie theory. At K and Ka band, using the log-normal particle size distribution spectrum in sand atmosphere with different visibility, the specific attenuation and the backscattering per unit volume of charged sand particle are studied. Based on meteorological radar equation, the radar echo power and radar reflectivity are analyzed, and the relations between they with visibility and particle charge are given. The results show that the charged particle in the sand atmosphere increases the microwave attenuation. The attenuation reaches a maximum when the charge-to-mass ratio is about 50uC/kg. When the amount of sand particle charge increases, the backscattering factor increases. The radar echo power of the sand atmosphere increases with the decrease of visibility, but when the distance is greater than a certain distance, due to the increase of attenuation, it decreases with the visibility decrease. The effect of charged particle in sand atmosphere becomes larger with increasing frequency and distance. This study can lay a good foundation for radar detection in sand and dust atmosphere, and inversion of the physical properties of the sand atmosphere.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125406158","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
Assessment of Ionospheric Correction Algorithm Based on Data Ingestion during Ionospheric Storm 基于电离层风暴数据摄取的电离层校正算法评价
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9752888
Liang Chen, Weiquan Huang, W. Zhen, Ming Ou, Dun Liu, Jiayan Wu, Yuhang Zhang
{"title":"Assessment of Ionospheric Correction Algorithm Based on Data Ingestion during Ionospheric Storm","authors":"Liang Chen, Weiquan Huang, W. Zhen, Ming Ou, Dun Liu, Jiayan Wu, Yuhang Zhang","doi":"10.1109/ISAPE54070.2021.9752888","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9752888","url":null,"abstract":"This paper presents an ionospheric correction algorithm based on data ingestion, which is realized by updating the driving parameters of the model with GNSS TEC. The ionospheric correction algorithm is evaluated by comparison between observation results and model results which are calculated based on the previous day vertical TEC data-driven model and the previous 15min vertical TEC data-driven model from July 14th to July 19th, 2012. The evaluation results show that during the ionospheric storm, the average RMS of the driving model based on the vertical TEC of the previous 15 minutes is 3.2 TECU, which is much smaller than that of the driving model based on the vertical TEC of the previous day, which is 14.1 TECU. Therefore, a higher update rate of ionospheric driving parameters should be used to correct the ionosphere delay during ionospheric storm.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125883688","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
On the phased array antenna radiation fields computational model based on the periodic boundary 基于周期边界的相控阵天线辐射场计算模型
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9752922
C. Wang, Hang Ji
{"title":"On the phased array antenna radiation fields computational model based on the periodic boundary","authors":"C. Wang, Hang Ji","doi":"10.1109/isape54070.2021.9752922","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9752922","url":null,"abstract":"The phased array antenna radiation fields computational model based on the periodic boundary is constructed. The model takes advantage of the character of periodic arrange of elements of antenna and periodic distribution of radiation fields of antenna elements. The method is high efficient and accurate.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129449258","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
Millimeters Wave Radar for Wireless Intelligent Sensing 无线智能传感用毫米波雷达
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753190
Yunlong Luo, Alex Qi, Ge Shi, Miao Miao, Y. Qi, Jianhua Ma
{"title":"Millimeters Wave Radar for Wireless Intelligent Sensing","authors":"Yunlong Luo, Alex Qi, Ge Shi, Miao Miao, Y. Qi, Jianhua Ma","doi":"10.1109/isape54070.2021.9753190","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753190","url":null,"abstract":"Among various sensing technologies, millimeters wave radar sensing is most likely to meet the complex and advanced sensing needs required to realize the vision of a smart world. This article provides a systematic and complete definition of wireless intelligent sensing, which integrates intelligence into the entire wireless sensing system, which is denoted as WISe. The entire WISe framework includes electromagnetic waves transceiver equipment, signal processing algorithms, data analysis software, and intelligent applications. Intelligence is achieved by using various intelligent resources in all parts from hardware to software. WISe is application-driven and dominated; therefore, the details of WISe are described and illustrated through four example applications of healthcare, smart toilets, pet monitoring, and in-cabin monitoring of smart vehicles.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129781658","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
Measurement and Analysis of Point-to-Area Propagation at VHF Band VHF波段点对区域传播的测量与分析
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753263
X. Hai, R. Zhang, L. K. Lin, X. Yu
{"title":"Measurement and Analysis of Point-to-Area Propagation at VHF Band","authors":"X. Hai, R. Zhang, L. K. Lin, X. Yu","doi":"10.1109/isape54070.2021.9753263","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753263","url":null,"abstract":"The measurement campaign for point-to-area propagation at radio wave frequency 90.5 MHz is introduced and the measured basic transmission loss is compared with the Recommendation ITU-R P.1546-6 model. The experiment was carried out in Beijing, China. It can be concluded from the comparison that the measured loss is greater than the predicted loss in most circumstances.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131141013","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
GMR 2D Magnetic Probe for Measuring Lightning Surface Current Distribution on Metal Cylinder 测量金属圆柱体雷电表面电流分布的GMR二维磁探头
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9753299
Tao Wang
{"title":"GMR 2D Magnetic Probe for Measuring Lightning Surface Current Distribution on Metal Cylinder","authors":"Tao Wang","doi":"10.1109/ISAPE54070.2021.9753299","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9753299","url":null,"abstract":"Utilizing giant magneto resistive (GMR) sensors, a two-dimension (2D) measurement system is developed. Based on the high sensitivity, wide bandwidth and small size of GMR sensor, a 2D detection probe is designed for this system, and its basic structure and operating principle are described in detail in this paper. In order to test the performances of this developed system, an experimental scheme of calibration and frequency response is presented. To further validate the effectiveness and reliability of the proposed 2D measurement system, an experiment measuring lightning surface current density on an aluminum cylinder is conducted. Comparisons of experimental and simulation results are given. Results show the 2D measurement system is capable of detecting the distribution tendency of current density on cylindrical surface. The developed system provides a practical tool to detect lightning surface current distribution on the curved surface.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131294489","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
Multiband metamaterial absorber based on fractal nesting and Jerusalem cross square ring combination 基于分形嵌套和耶路撒冷交叉方环组合的多波段超材料吸收材料
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753248
Wenwen Xing, Jun Li, Zhenyu Shen, Tongtong Xu, Zhongxiang Zhou
{"title":"Multiband metamaterial absorber based on fractal nesting and Jerusalem cross square ring combination","authors":"Wenwen Xing, Jun Li, Zhenyu Shen, Tongtong Xu, Zhongxiang Zhou","doi":"10.1109/isape54070.2021.9753248","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753248","url":null,"abstract":"Two novel multiband metamaterial absorbers are proposed in this paper. The unit cell of the absorber consists of a metal patch with nested or combined patterns on the upper and lower layers and a metal backplane. Each layer is separated by a medium. The main absorption peaks of the fractal nested structure are at 18.91 GHz, 20.06 GHz, 26.57 GHz and 30.10 GHz. The main absorption peaks of the Jerusalem cross and square ring combination structure are at 11.50 GHz, 14.12 GHz, 18.56 GHz, 29.50 GHz and 31.60 GHz. It is found that the design of nesting and combining metal pattern is beneficial to realize multiband absorbing.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122362953","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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