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

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Design of A Compact Planar Eight-way Hybrid Power Divider with Ultra-wide Bandwidth 一种超宽带紧凑平面八路混合功率分配器的设计
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9753631
Kai Jiang, Jinwen Zhou, Biao Sun, Zhihong Zhang, Huifeng Wu
{"title":"Design of A Compact Planar Eight-way Hybrid Power Divider with Ultra-wide Bandwidth","authors":"Kai Jiang, Jinwen Zhou, Biao Sun, Zhihong Zhang, Huifeng Wu","doi":"10.1109/ISAPE54070.2021.9753631","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9753631","url":null,"abstract":"A compact planar eight-way power divider with ultra-wide bandwidth (UWB) is introduced in this paper. To ensure a relative bandwidth of 100% (6~18 GHz), high power capacitance and small size in horizontal direction, a combination of single-ridged waveguide and microstrip line is adopted. In structure, the proposed eight-way power divider presents a relatively small size which meets the requirement of compact distance between output ports. While in electrical performances, the power divider performs well on VSWR (less than 1.38), phase differences (within ±4 degree) and amplitude differences (less than 0.4 dB). The simulation and measured results are provided for comparison.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"93 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":"124211270","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 Novel Folded Dipoles Circularly Polarized Quasi-Yagi Antenna 一种新型折叠偶极圆极化拟八木天线
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9753137
Lifang Liu, Xuping Li, Yunqi Zhang, Simin Du
{"title":"A Novel Folded Dipoles Circularly Polarized Quasi-Yagi Antenna","authors":"Lifang Liu, Xuping Li, Yunqi Zhang, Simin Du","doi":"10.1109/ISAPE54070.2021.9753137","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9753137","url":null,"abstract":"A novel planar folded dipoles quasi-Yagi antenna with a good function is proposed. It is based on a simple structure of two pairs of folded dipoles, planar magnetic walls, two mental via-holes, and a director. The working principle of the antenna is studied and analyzed. The magnetic walls are combined with folded dipoles to form a circularly polarized beam. By simulation and optimization, The impedance bandwidth (|S11|≤ - 10 dB) of about 4.8% (5.65-5.93 GHz) and a 3 dB AR bandwidth of about 13.3% (5.28-6.03 GHz) around the center frequency of 5.8 GHz is achieved, which indicates that the proposed antenna is suitable for the RFID system.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"3 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120914480","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
Influence analysis in the permittivity measurement of the curved materials 弯曲材料介电常数测量中的影响分析
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9752834
Xiangjie Peng, C. Gao, Gaofeng Guo, Xin Song, Yihang Tu, Jin Cheng
{"title":"Influence analysis in the permittivity measurement of the curved materials","authors":"Xiangjie Peng, C. Gao, Gaofeng Guo, Xin Song, Yihang Tu, Jin Cheng","doi":"10.1109/ISAPE54070.2021.9752834","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9752834","url":null,"abstract":"In this paper, an open resonator for permittivity measurement of curved materials is proposed. The resonator consists of the cylindrical cavity and the X-band point-focusing antenna, and the energy in the cavity is coupled into the antenna by hole coupling and then radiated into the free space. When the sample is placed in front of the antenna, the reflection coefficient of the antenna is affected, which in turn causes the resonant mode in the cavity to be perturbed, and the change of its resonant frequency and quality factor depends on the complex permittivity of the material. The variation of measurement results under the effect of different factors is analyzed by measuring samples with different curvatures and thicknesses. The results of the permittivity distribution measurement of the samples show that the method can effectively perform permittivity measurement of curved materials with an error of 10% or less under most measurement conditions, also data fluctuations in a few cases.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"8 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114120254","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
Investigation on Simulation of Sea Surface SAR Image 海面SAR图像模拟研究
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753053
Qian Li, Yunhua Wang, Yanmin Zhang
{"title":"Investigation on Simulation of Sea Surface SAR Image","authors":"Qian Li, Yunhua Wang, Yanmin Zhang","doi":"10.1109/isape54070.2021.9753053","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753053","url":null,"abstract":"Based on the real SAR imaging process, a simulation method of Synthetic Aperture Radar (SAR) image for time-varying sea surface is proposed. Time-varying sea surface scene and electromagnetic scattering model are built to obtain the profile and complex reflectivity of sea surface for the SAR echo signal simulation. The radial velocity due to the orbit velocity of the large-scale waves would cause additional Doppler shift and Velocity Bunching (VB) effect. In this paper, the VB effect in SAR image is simulated via changing phase of echo signal and producing an additional Doppler shift. The simulated results show the VB effect of SAR. This work is helpful for better understanding SAR images of ocean waves.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"26 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":"124046867","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
Calculation of Lightning Induced Voltage of Buried Cable Metal Sheath 埋地电缆金属护套雷电感应电压的计算
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753008
Yong Wu, Qing Liu, Jia-yi Yang, Xingling Liu
{"title":"Calculation of Lightning Induced Voltage of Buried Cable Metal Sheath","authors":"Yong Wu, Qing Liu, Jia-yi Yang, Xingling Liu","doi":"10.1109/isape54070.2021.9753008","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753008","url":null,"abstract":"In order to research the lightning induced overvoltage on the metal sheath of buried cables, the finite-difference time-domain (FDTD) algorithm is used to calculate the underground lightning electromagnetic field. By using the vector fitting method, the field-line coupling model is simplified, the lightning induced overvoltage on the buried cable sheath is calculated, and the effect of vertically layered soil on the induced voltage on the buried cable sheath is analyzed.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"45 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":"124121189","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 Performance Computational Model of the Radar in the Complicated Electromagnetic Environment 复杂电磁环境下雷达性能计算模型研究
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9752815
C. Wang, Hang Ji
{"title":"On the Performance Computational Model of the Radar in the Complicated Electromagnetic Environment","authors":"C. Wang, Hang Ji","doi":"10.1109/isape54070.2021.9752815","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9752815","url":null,"abstract":"Base on the radar signal detection process, the performance computational model of the radar in the complicated electromagnetic environment is constructed. The interferences models are constructed as well. According to the computational models the radar performances are computed and the computational results agree with the theory analyses. The computational model adapt to arbitrary interference.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"12 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":"126455973","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
Beamforming and Power Allocation for Uplink NOMA Transmission in Multibeam Satellite Communications With Rate Splitting 速率分裂下多波束卫星通信上行NOMA传输的波束形成与功率分配
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9753096
Huaicong Kong, Zining Wang, Min-Chuan Lin, Zhi Lin, Jin-yuan Wang
{"title":"Beamforming and Power Allocation for Uplink NOMA Transmission in Multibeam Satellite Communications With Rate Splitting","authors":"Huaicong Kong, Zining Wang, Min-Chuan Lin, Zhi Lin, Jin-yuan Wang","doi":"10.1109/ISAPE54070.2021.9753096","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9753096","url":null,"abstract":"This paper investigates uplink non-orthogonal mul-tiple access (NOMA) transmission in multibeam satellite commu-nications with rate splitting, where the satellite simultaneously serves multiple ground clusters through multibeam technology while two heterogeneous users in each cluster are paired to benefit from uplink NOMA with rate splitting. Specifically, we first formulate a constrained optimization problem aiming at minimizing the total power subject to the constraints of individual power budget and quality-of-service requirements of the satellite. Afterwards, we propose a partial zero-forcing beamforming scheme along with the alternating direction method of multipliers with reduced computational burden. Finally, simulation results are presented to demonstrate the effectiveness and superiority of the proposed scheme compared with the existing works.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"12 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":"121843400","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: 3
Two-Port Antenna Pair Decoupling by Modal Control for 5G Mobile Devices 基于模态控制的5G移动设备双端口天线对解耦
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9753138
Wendi Zeng, Q. Chu, Bao Lu
{"title":"Two-Port Antenna Pair Decoupling by Modal Control for 5G Mobile Devices","authors":"Wendi Zeng, Q. Chu, Bao Lu","doi":"10.1109/isape54070.2021.9753138","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9753138","url":null,"abstract":"In this paper, a wideband two-port antenna pair is designed for the fifth generation (5G) application. The -6 dB impedance matching bandwidth of the antenna pair can cover 3.1-5.28 GHz and the isolation is better than 10 dB. Compared to the traditional decoupling method of characteristic mode, we excite a pair of decoupling modes at each port simultaneously. An eight-element multi-input multi-output (MIMO) antenna composed of four two-port antenna pairs is simulated, fabricated, and measured. The proposed antenna pair is a good candidate for the 5G Application.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"131 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":"122268642","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
Clutter Simulation of Dynamic Sea Surface under Two Motion Modes of Radar Seeker 雷达导引头两种运动模式下动态海面杂波仿真
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/ISAPE54070.2021.9753354
W. Shi, Wei Liu, Y. Zuo, Lixin Guo
{"title":"Clutter Simulation of Dynamic Sea Surface under Two Motion Modes of Radar Seeker","authors":"W. Shi, Wei Liu, Y. Zuo, Lixin Guo","doi":"10.1109/ISAPE54070.2021.9753354","DOIUrl":"https://doi.org/10.1109/ISAPE54070.2021.9753354","url":null,"abstract":"In the traditional EM scattering model of the sea surface, sea clutter with different parameters are usually calculated under the static condition of the radar platform. However, most radars move in different motion states, e.g., radar seeker is equipmented in a moving missile-borne platform. This paper introduces in detail the model and process of the integration of moving radar seeker and sea surface under the side-looking radar and forward-looking radar seeker. The vector superposition of the results of the physical optics method (PO) on facets is used to calculate the EM scattering under the condition of seeker beam irradiation. Sea clutter under different marine conditions and radar platform parameters are simulated and analyzed. It is pointed out that the amplitude of the side-looking motion radar platform increases significantly when the wind speed increases. When the platform velocity increases, it has little effect on sea clutter time series. For the forward-looking motion radar platform, the frequency increases significantly with the increase of wind speed or the increase of platform velocity.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"35 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113937082","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
Scattering of pulsed Terahertz wave by sand particles 沙粒对脉冲太赫兹波的散射
2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2021-12-01 DOI: 10.1109/isape54070.2021.9752969
P. Liang, H. H. Zhang, J. J. Wang, Y. Han, Y. Lei, H. Ye, Z. S. Xu
{"title":"Scattering of pulsed Terahertz wave by sand particles","authors":"P. Liang, H. H. Zhang, J. J. Wang, Y. Han, Y. Lei, H. Ye, Z. S. Xu","doi":"10.1109/isape54070.2021.9752969","DOIUrl":"https://doi.org/10.1109/isape54070.2021.9752969","url":null,"abstract":"A pulsed Terahertz wave scattered by a spherical particle is numerical analyzed in this paper using a generalized Lorenz-Mie formula. The envelope information of Terahertz wave covers a spectrum range of 0.2THz-3.75THz is extracted from the original signal generated by a femtosecond laser source and then fitted by using the single peak function. The complex refractive index of particles changes with the frequency in the Terahertz band are obtained using the cubic spline interpolation algorithm based on the original data extracted from the HITRAN2012. Scattering efficiency, backscattering efficiency and polarization of sand particles are investigated. The effects of particle size and pulse width on the scattering characteristics are analyzed.","PeriodicalId":287986,"journal":{"name":"2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"743 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":"132022235","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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