Pub Date : 2024-09-02DOI: 10.1109/tap.2024.3450304
Yu Luo, Shuaijie Duan, Zhi Ning Chen, Ningning Yan, Wenxing An, Kaixue Ma
{"title":"An Artificial-Neural-Network-Based Efficient Beamforming Synthesis Method and Its Application to Flat-Top Beamformed Compressed High-Order-Mode Dipoles","authors":"Yu Luo, Shuaijie Duan, Zhi Ning Chen, Ningning Yan, Wenxing An, Kaixue Ma","doi":"10.1109/tap.2024.3450304","DOIUrl":"https://doi.org/10.1109/tap.2024.3450304","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-29DOI: 10.1109/tap.2024.3449069
Olav Breinbjerg
{"title":"Derivative Sampling of Periodic and Non-Periodic Band-Limited Signals — Fourier Spectrum and Interpolation Formula","authors":"Olav Breinbjerg","doi":"10.1109/tap.2024.3449069","DOIUrl":"https://doi.org/10.1109/tap.2024.3449069","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-29DOI: 10.1109/tap.2024.3449077
Xin Yang, Shuangshuang Chen, Yongpin Chen, Yanwen Zhao, Shi Chenbo, Jun Hu, Deqiang Yang
{"title":"Combining Pancharatnam-Berry Phase and Spherical Conformal Transmitarray for High-efficiency Beam Focusing","authors":"Xin Yang, Shuangshuang Chen, Yongpin Chen, Yanwen Zhao, Shi Chenbo, Jun Hu, Deqiang Yang","doi":"10.1109/tap.2024.3449077","DOIUrl":"https://doi.org/10.1109/tap.2024.3449077","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-28DOI: 10.1109/tap.2024.3448305
Patinavalasa Megh Sainadh, Saptarshi Ghosh
{"title":"A Multifunctional Reconfigurable Frequency Selective Surface with Simultaneous Switching and Tuning Capability","authors":"Patinavalasa Megh Sainadh, Saptarshi Ghosh","doi":"10.1109/tap.2024.3448305","DOIUrl":"https://doi.org/10.1109/tap.2024.3448305","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-28DOI: 10.1109/tap.2024.3447787
Zhijing Xiao, Yunfei Cao, Wenquan Che, Quan Xue
{"title":"Millimeter-Wave Filtering Circularly Polarized Antenna Using Hybrid Radiation Modes for Satellite Applications","authors":"Zhijing Xiao, Yunfei Cao, Wenquan Che, Quan Xue","doi":"10.1109/tap.2024.3447787","DOIUrl":"https://doi.org/10.1109/tap.2024.3447787","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.1109/TAP.2024.3438365
Chuanfei Ding;Xiang Gao;Wenfei Tang;Heng Liu;Chao Zhu;Xiangyuan Bu;Jianping An
This article presents a balloon-based conformal heterogeneous array antenna with ultrawide bandwidth and half-space beam coverage for emergency communication applications. The antenna consists of two types of cylindrically conformal arrays, each of which contains nine broadside or endfire subarrays. By virtue of 1-D full-azimuthal beam switching and combining the radiation patterns of those two arrays, one yields an entire half-space beam coverage. To increase the bandwidth and gain while maintaining low profiles, the broadside subarray utilizes $1times 4$ dumbbell-shaped full-wavelength dipoles cross-fed in series and backed by a miniaturized artificial magnetic conductor (AMC); the endfire subarray employs $2times 3$ size-tapered half-wavelength dipoles with optimized spacing to achieve the desired radiation characteristics. To validate the designs, the prototypes of two conformal subarrays with one shared aperture were fabricated and measured. Experimental results have indicated the proposed conformal heterogeneous array exhibits an overlapped bandwidth of 720 MHz and $360^{circ } times 108^{circ }$ beam coverage at the 2.4-GHz band, which shows its superior performance and its huge potential in the mountainous and dense-forest communication applications.
{"title":"A Balloon Conformal Heterogeneous Array Antenna with Ultrawide Bandwidth and Half-Space Beam Coverage","authors":"Chuanfei Ding;Xiang Gao;Wenfei Tang;Heng Liu;Chao Zhu;Xiangyuan Bu;Jianping An","doi":"10.1109/TAP.2024.3438365","DOIUrl":"https://doi.org/10.1109/TAP.2024.3438365","url":null,"abstract":"This article presents a balloon-based conformal heterogeneous array antenna with ultrawide bandwidth and half-space beam coverage for emergency communication applications. The antenna consists of two types of cylindrically conformal arrays, each of which contains nine broadside or endfire subarrays. By virtue of 1-D full-azimuthal beam switching and combining the radiation patterns of those two arrays, one yields an entire half-space beam coverage. To increase the bandwidth and gain while maintaining low profiles, the broadside subarray utilizes \u0000<inline-formula> <tex-math>$1times 4$ </tex-math></inline-formula>\u0000 dumbbell-shaped full-wavelength dipoles cross-fed in series and backed by a miniaturized artificial magnetic conductor (AMC); the endfire subarray employs \u0000<inline-formula> <tex-math>$2times 3$ </tex-math></inline-formula>\u0000 size-tapered half-wavelength dipoles with optimized spacing to achieve the desired radiation characteristics. To validate the designs, the prototypes of two conformal subarrays with one shared aperture were fabricated and measured. Experimental results have indicated the proposed conformal heterogeneous array exhibits an overlapped bandwidth of 720 MHz and \u0000<inline-formula> <tex-math>$360^{circ } times 108^{circ }$ </tex-math></inline-formula>\u0000 beam coverage at the 2.4-GHz band, which shows its superior performance and its huge potential in the mountainous and dense-forest communication applications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.1109/TAP.2024.3438374
Yaojia Yang;Binchao Zhang;Fan Yang;Shenheng Xu;Maokun Li
For the angular dispersion issue of frequency-selective surfaces (FSSs), a novel analysis method based on wavevector domain equivalent impedance is proposed. The main concept is to change the view from the usual (x, y) space to the wave vector (kx, ky) space. Comprehensive analyses and comparisons are conducted regarding the resonant frequency shifts of dipole and loop FSSs under oblique incidence. The total equivalent impedance of the FSS is treated as the aggregate of equivalent impedances corresponding to numerous Floquet modes. A hierarchical relationship is established among the incident angle $boldsymbol {theta }$ , wave vector (kx, ky), equivalent impedance $Z_{eq}$ , and reflection coefficient $S_{11}$ . The variation of the incident angle $boldsymbol {theta }$ is observed to exert a discernible influence on the tangential wave vector, denoted as $k_{0}textit {sin}theta $ . This influence subsequently instigates a modification in the equivalent impedance, ultimately resulting in a shift in the resonant frequency of the FSS. Given the rapid convergence of higher order modes, a focused analysis of two primary modes proves sufficient for comprehending the overall behavior. The calculated S-parameters are essentially consistent with the simulated results, which demonstrates the accuracy of the proposed method.
{"title":"Angular Dispersion Analysis of Frequency-Selective Surfaces Based on Wavevector Domain Equivalent Impedance","authors":"Yaojia Yang;Binchao Zhang;Fan Yang;Shenheng Xu;Maokun Li","doi":"10.1109/TAP.2024.3438374","DOIUrl":"https://doi.org/10.1109/TAP.2024.3438374","url":null,"abstract":"For the angular dispersion issue of frequency-selective surfaces (FSSs), a novel analysis method based on wavevector domain equivalent impedance is proposed. The main concept is to change the view from the usual (x, y) space to the wave vector (kx, ky) space. Comprehensive analyses and comparisons are conducted regarding the resonant frequency shifts of dipole and loop FSSs under oblique incidence. The total equivalent impedance of the FSS is treated as the aggregate of equivalent impedances corresponding to numerous Floquet modes. A hierarchical relationship is established among the incident angle \u0000<inline-formula> <tex-math>$boldsymbol {theta }$ </tex-math></inline-formula>\u0000, wave vector (kx, ky), equivalent impedance \u0000<inline-formula> <tex-math>$Z_{eq}$ </tex-math></inline-formula>\u0000, and reflection coefficient \u0000<inline-formula> <tex-math>$S_{11}$ </tex-math></inline-formula>\u0000. The variation of the incident angle \u0000<inline-formula> <tex-math>$boldsymbol {theta }$ </tex-math></inline-formula>\u0000 is observed to exert a discernible influence on the tangential wave vector, denoted as \u0000<inline-formula> <tex-math>$k_{0}textit {sin}theta $ </tex-math></inline-formula>\u0000. This influence subsequently instigates a modification in the equivalent impedance, ultimately resulting in a shift in the resonant frequency of the FSS. Given the rapid convergence of higher order modes, a focused analysis of two primary modes proves sufficient for comprehending the overall behavior. The calculated S-parameters are essentially consistent with the simulated results, which demonstrates the accuracy of the proposed method.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.1109/TAP.2024.3438884
Akshay Kaushal;Vipin W. Paradkar;Jayanta Mukherjee
This article presents a 3-D indoor, geometric-based, stochastic channel model (GSCM) operating in the mm-wave frequency band, imitating the use of 5G technology in smartphones and wireless communication among devices (including IoT) in an indoor environment. The model incorporates a 3-D inverse parabolic distribution of the scatterers to output exact closed-form expressions of the joint and marginal probability density functions (PDFs) of the random variables: time of arrival (ToA) and angles of arrival (AoAs) at the receiver. The model is then verified through rigorous simulations in ray-tracing software with different geometric configurations of the receiver, by comparing the PDFs obtained through simulations with the theoretically calculated PDFs from the model, to prove its novelty and mathematical accuracy.
本文介绍了一种在毫米波频段运行的基于几何的三维室内随机信道模型（GSCM），该模型模仿了智能手机中 5G 技术的使用以及室内环境中设备（包括物联网）之间的无线通信。该模型结合了散射体的三维反抛物线分布，可输出随机变量联合和边际概率密度函数（PDF）的精确闭式表达：接收器的到达时间（ToA）和到达角度（AoAs）。然后，通过在光线跟踪软件中对接收器的不同几何配置进行严格模拟，将模拟得到的 PDF 与模型理论计算得到的 PDF 进行比较，验证模型的新颖性和数学准确性。
{"title":"3-D Geometric-Based Indoor Stochastic Modeling Using Inverse Parabolic Scatterer Distribution","authors":"Akshay Kaushal;Vipin W. Paradkar;Jayanta Mukherjee","doi":"10.1109/TAP.2024.3438884","DOIUrl":"https://doi.org/10.1109/TAP.2024.3438884","url":null,"abstract":"This article presents a 3-D indoor, geometric-based, stochastic channel model (GSCM) operating in the mm-wave frequency band, imitating the use of 5G technology in smartphones and wireless communication among devices (including IoT) in an indoor environment. The model incorporates a 3-D inverse parabolic distribution of the scatterers to output exact closed-form expressions of the joint and marginal probability density functions (PDFs) of the random variables: time of arrival (ToA) and angles of arrival (AoAs) at the receiver. The model is then verified through rigorous simulations in ray-tracing software with different geometric configurations of the receiver, by comparing the PDFs obtained through simulations with the theoretically calculated PDFs from the model, to prove its novelty and mathematical accuracy.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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