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

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 4

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

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

Analysis of Scattering Characteristics Based on Crank-Nicolson Direct-Splitting Algorithm for Remote Sensing Problems 基于 Crank-Nicolson 直接分割算法的遥感问题散射特性分析

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-08 DOI: 10.1109/OJAP.2024.3374259

Shida Gao;Hua Jiang;Yong Fan;Yongjun Xie;Haolin Jiang;Peiyu Wu

{"title":"Analysis of Scattering Characteristics Based on Crank-Nicolson Direct-Splitting Algorithm for Remote Sensing Problems","authors":"Shida Gao;Hua Jiang;Yong Fan;Yongjun Xie;Haolin Jiang;Peiyu Wu","doi":"10.1109/OJAP.2024.3374259","DOIUrl":"10.1109/OJAP.2024.3374259","url":null,"abstract":"In remote sensing problems, broadband scattering investigation becomes increasingly important than ever before. The scattering characteristic changes significantly with the variation of range. Thus, the conventional evaluation method becomes invalid in many situations. Meanwhile, an efficient method for the simulation of electromagnetic wave propagation in electrically large remote sensing problem is also an urgently demanding. In order to alleviate such problems, an alternative Crank-Nicolson Direct-Splitting algorithm is proposed in open regions. To infinite extension of the computational domain, convolutional perfectly match layer with higher order formulation is proposed not only to further enhance the absorption at low-frequency band but also to decrease the reflections during the entire time domain simulation. Efficient method is proposed for scattering characteristics evaluation which ranges from near-field to far-field. Radar remote sensing Problems including ground penetrating radar and early warning radar are introduced to demonstrate the effectiveness of the algorithm. Through the results, it can be concluded that the proposed algorithm shows considerable performance in the simulation of remote sensing problems.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10461021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140076424","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

Using Open Source to Accelerate Development of a Finite Element-Boundary Integral Code 利用开放源代码加速有限元边界积分代码的开发

IF 4

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-03-07 DOI: 10.1109/OJAP.2024.3374350

Niklas Wingren;Daniel Sjöberg

{"title":"Using Open Source to Accelerate Development of a Finite Element-Boundary Integral Code","authors":"Niklas Wingren;Daniel Sjöberg","doi":"10.1109/OJAP.2024.3374350","DOIUrl":"10.1109/OJAP.2024.3374350","url":null,"abstract":"Open-source software has been highly influential on software development in many fields, and also has a history within computational electromagnetics. With large amounts of open-source code available, both from within computational electromagnetics and from other fields, new combinations can be made by using already existing code packages. This can be especially beneficial to developers who do not otherwise have access to a substantial codebase. In this article we describe how a finite element-boundary integral code using the adaptive cross approximation was developed by combining different existing open-source software packages with new code in Python. We provide a brief overview of the numerical methods used, but our focus is on the implementation and insights that might be useful to others who could benefit from using open-source software in their work. Three numerical examples are also presented to demonstrate accuracy, performance and use of complex materials. Our code is provided at github.com/nwingren/fe2ms both to demonstrate how the open-source packages were combined in practice, but also for those who wish to test the code themselves.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10462479","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140072942","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