IEEE Open Journal of Antennas and Propagation最新文献_第10页

Investigation of a Circularly Polarized Log-Periodic Dipole Antenna 圆极化对数周期偶极子天线研究

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-20 DOI: 10.1109/OJAP.2024.3376514

Kunpeng Wei;Xiaopeng Zhang;Libin Sun;Changjiang Deng

引用次数: 0

Effects and Models of Offset-Via in Electromagnetic Band Gap Structure 电磁带隙结构中的偏移量效应和模型

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-20 DOI: 10.1109/OJAP.2024.3379306

Luohao Liu;Fan Yang;Shenheng Xu;Maokun Li

引用次数: 0

Frequency-Diverse Reflection Metasurface Antenna Design for Computational Microwave Imaging 用于计算微波成像的频率多样化反射元面天线设计

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-18 DOI: 10.1109/OJAP.2024.3377368

Aobo Li;Mengran Zhao;Dónal Patrick Lynch;Shitao Zhu;Muhammad Ali Babar Abbasi;Okan Yurduseven

{"title":"Frequency-Diverse Reflection Metasurface Antenna Design for Computational Microwave Imaging","authors":"Aobo Li;Mengran Zhao;Dónal Patrick Lynch;Shitao Zhu;Muhammad Ali Babar Abbasi;Okan Yurduseven","doi":"10.1109/OJAP.2024.3377368","DOIUrl":"10.1109/OJAP.2024.3377368","url":null,"abstract":"In this paper, the design of a computational microwave imaging (CMI) oriented frequency-diverse reflection metasurface antenna (FDRMA) is presented. Designing a FDRMA for CMI requires a careful synthesis framework, from the topology of metamaterial elements to the statistical analyses of the metasurface and the evaluation of its CMI performance. Consequently, we begin with an investigation of different metamaterial element topologies with the aim to choose the optimal one to constitute a desired reflection metasurface. The FDRMA is then designed by randomly distributing the metamaterial elements with diverse structural parameters. The orthogonality of the reflected field patterns is investigated by means of a spatial-correlation evaluation and a singular value decomposition. To mitigate random errors, each type of FDRMA is replicated 20 times, and the evaluation indexes are averaged. Finally, the CMI experiments are carried out through full-wave simulations using different FDRMAs to verify their computational imaging performance. Moreover, a prototype of the optimal FDRMA topology is fabricated and real CMI experiments are implemented to validate the proposed design method.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10472621","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140169369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Single-Antenna Full-Duplex Subsystem With High Isolation and High Gain 具有高隔离度和高增益的单天线全双工子系统

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-18 DOI: 10.1109/OJAP.2024.3376568

Li Zhang;Miao Lv;Zhi-Ya Zhang;Yu Wang;Fanchao Zeng;Can Ding;Chenhui Dai

引用次数: 0

Modeling of the Fault Detection Problem for a 3-D Hybrid Antenna Array: Analysis and Evaluation 三维混合天线阵列故障检测问题建模：分析与评估

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-18 DOI: 10.1109/OJAP.2024.3378116

Somayeh Komeylian;Christopher Paolini

{"title":"Modeling of the Fault Detection Problem for a 3-D Hybrid Antenna Array: Analysis and Evaluation","authors":"Somayeh Komeylian;Christopher Paolini","doi":"10.1109/OJAP.2024.3378116","DOIUrl":"10.1109/OJAP.2024.3378116","url":null,"abstract":"Research in the field of fault detection has steadily been developing for monitoring the performance of array antennas in the presence of errors in excitation phases and amplitudes. The presence of faulty elements degrades significantly the radiation characteristics and performance of antenna arrays. The measured errors in excitation phases and amplitudes at outputs of elements of the 3D HAAwBE are characterized by a few sparse non-zero vectors. A regularized \u0000<inline-formula> <tex-math>$l_{2,1}$ </tex-math></inline-formula>\u0000-norm problem is designed to model errors of faulty elements and noise. In this work, we have implemented the ADMM method under the joint sparsity setting to solve the regularized \u0000<inline-formula> <tex-math>$l_{2,1}$ </tex-math></inline-formula>\u0000-norm problem for a number of samples of the degraded radiation pattern of the HAAwBE rather than computing its array factor, which requires significant and complex mathematical computation. The proposed ADMM technique under the joint sparsity setting allows for minimizing the cost function of the problem with respect to both model parameters and variable vectors. We have further increased accuracy and stability of the performance of the HAAwBE in the two problems of fault detection and DoA estimation by deploying three different optimization methods: LS-SVM, NN-RBF, and NN-MLP, and compared to each other. Consequently, the superior performance of the HAAwBE has been numerically verified by the high success rates of 91.83%, 91.24%, and 88.33%, by performing the LS-SVM, NN-MLP, and NN-RBF optimization methods, respectively, in the presence of 50% faulty elements. Furthermore, results of DoA estimation by the HAAwBE have represented the high resolution in recognizing locations of three signal sources with performing the optimization method.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10473162","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Profile CO-CSRR and EBG Loaded Tri-Quarter Circular Patch EWB MIMO Antenna With Multiple Notch Bands 具有多个凹口波段的扁平 CO-CSRR 和 EBG 负载三季度圆形贴片 EWB MIMO 天线

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-18 DOI: 10.1109/OJAP.2024.3377695

Hemalatha T;Bappadittya Roy

{"title":"Low-Profile CO-CSRR and EBG Loaded Tri-Quarter Circular Patch EWB MIMO Antenna With Multiple Notch Bands","authors":"Hemalatha T;Bappadittya Roy","doi":"10.1109/OJAP.2024.3377695","DOIUrl":"10.1109/OJAP.2024.3377695","url":null,"abstract":"A novel and miniaturized design featuring a Co-directional Complementary Split Ring Resonator (CO-CSRR) loaded Tri-Quarter Circular (TQC) Extremely Wideband (EWB) Multiple-Input Multiple-Output (MIMO) antenna has been developed and simulated. This proposed antenna demonstrates high isolation and exhibits multiple notch characteristics. The configuration consists of two TQC patches positioned adjacent to each other with a common partial ground plane (PGP), achieving an Extremely Wideband (EWB) capability of 85.8 GHz. Additionally, two elliptical CO-CSRRs are etched on the TQC elements to introduce dual-notch characteristics in the X-band and Ku-band. The integration of two Electromagnetic Band Gap (EBG) structures on either side of the microstrip feedline facilitates the creation of notch frequency ranges at Q-band downlink and V-band. To enhance isolation, a slotted meandering strip is extruded to the PGP. This design primarily focuses on achieving EWB with a compact size and reduced complexity. The overall physical volume of the proposed design is \u0000<inline-formula> <tex-math>$2.74~lambda _{o} {times } 4.83~lambda _{o} {times } 0.25~lambda _{o}$ </tex-math></inline-formula>\u0000, achieved a maximum \u0000<inline-formula> <tex-math>$|S_{11}|$ </tex-math></inline-formula>\u0000 of 30.82 dB at a frequency of 17.58 GHz. The antenna’s performance has been thoroughly evaluated in terms of radiation pattern, isolation, Total Active Reflection Coefficient (TARC), Envelope Correlation Coefficient (ECC), Diversity Gain (DG), Gain, and Efficiency. Stable gain and Group Delay (GD) of less than 0.2 ns for the entire Extremely Wideband (EWB) range have been achieved, with lower gain observed at the notch bands.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10473178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intelligent Signal Coverage Employing Hybrid-Mode Excitation in 5G Spoof Surface Plasmon Polaritons Antennas 在 5G 欺骗表面等离子体极化子天线中采用混合模式激励实现智能信号覆盖

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-14 DOI: 10.1109/OJAP.2024.3377264

Behnam Mazdouri;Rashid Mirzavand

{"title":"Intelligent Signal Coverage Employing Hybrid-Mode Excitation in 5G Spoof Surface Plasmon Polaritons Antennas","authors":"Behnam Mazdouri;Rashid Mirzavand","doi":"10.1109/OJAP.2024.3377264","DOIUrl":"10.1109/OJAP.2024.3377264","url":null,"abstract":"Multi-directional signal coverage utilizing simple multi-functional antenna plays a crucial role in 5G smart environment and the massive Internet of Things (IoT). The term “Multifunctionality” refers to an antenna’s ability to control and alter its radiation pattern. Spoof Surface Plasmon Polariton (SPP) antennas are considered simple and cost-effective due to their flexible one-layer configurations, making them a good candidate for smart environment. Different radiation features and signal levels in the spoof SPP antenna employing either separated or combined \u0000<inline-formula> <tex-math>$k_{-1}$ </tex-math></inline-formula>\u0000 space harmonic or odd-mode are considered in this paper. Our proposed hybrid-mode antenna combines the above mentioned modes. For this purpose, a phase shift stub (PSS) is proposed for providing required phase delay. Then, the PSS is connected to a sinusoidally impedance-modulated spoof SPP antenna for hybrid-mode excitation. Our antenna supports radiation features of the mentioned modes in separate and hybrid-modes, depending on phase delay value of PSS at the operating frequencies of 26 GHz-30 GHz. Furthermore, a new design guide for odd-mode spoof SPP antennas is introduced in order to decrease side lobes’ level that are more intense in longer antennas. In order to verify the proposed structures’ performance, simulated and measured results of the reconfigurable antenna consisting of diodes and a biasing circuit are presented. The obtained measured results align well with the simulated ones.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10472596","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140147769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Wideband Reflectarray and Transmitarray Antennas With Low Sidelobe and Cross-Polarization Levels Using a Multifunctional Ultrathin Metasurface 利用多功能超薄元表面设计低侧叶和交叉极化水平的宽带反射阵列和发射阵列天线

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-12 DOI: 10.1109/OJAP.2024.3375153

Yufang Wang;Yuehe Ge;Zhizhang Chen;Ziheng Zhou

{"title":"Design of Wideband Reflectarray and Transmitarray Antennas With Low Sidelobe and Cross-Polarization Levels Using a Multifunctional Ultrathin Metasurface","authors":"Yufang Wang;Yuehe Ge;Zhizhang Chen;Ziheng Zhou","doi":"10.1109/OJAP.2024.3375153","DOIUrl":"10.1109/OJAP.2024.3375153","url":null,"abstract":"Ensuring a low cross-polarization level (CPL) is imperative in the design of antennas with a low sidelobe level (SLL). This paper introduces an innovative approach for designing wideband, high-gain, low-sidelobe, and low-cross-polarization reflectarray (RA) and transmitarray (TA) antennas. The methodology leverages a groundbreaking metasurface endowed with the capability for independent amplitude and phase manipulation in both transmission and reflection modes. Initial characterization robustly verifies the metasurface’s proficiency in independently controlling amplitude and phase in reflection and transmission modes. Importantly, the study demonstrates that this metasurface enables the straightforward attainment of low CPL in the design of low-SLL RA and TA antennas. The study progresses to the design, fabrication, and testing of three RA and TA antennas. The obtained simulated and measured results affirm their exceptional performance in terms of wideband, high-gain, low-SLL, and low-CPL characteristics.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10463612","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140115758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A WLAN Dual-Polarized Beam-Reconfigurable Antenna 无线局域网双极化波束可重构天线

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-08 DOI: 10.1109/OJAP.2024.3373913

Saiju Li;Meie Chen;Zheng Li;Jianqiang Chen;Junhong Wang

引用次数: 0

RF Circuit Analysis of UWB Planar Log Periodic Antenna for 5G Communications Using Theory of Characteristic Modes 利用特性模式理论分析用于 5G 通信的 UWB 平面对数周期天线的射频电路

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-08 DOI: 10.1109/OJAP.2024.3398147

P. Sumithra;Mohammed Gulam Nabi Alsath;K. J. Jegadishkumar;D. Kannadassan

引用次数: 0