Applied Computational Electromagnetics Society Journal最新文献_第4页

Reconfigurable 2×1 CPW-Fed Rectangular Slot Antenna Array (RSAA) Based on Graphene For Wireless Communications 可重构2×1基于石墨烯的无线通信cpw馈电矩形槽天线阵列(RSAA)

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-06-28 DOI: 10.21203/rs.3.rs-621748/v1

D. Elsheakh, O. Dardeer

{"title":"Reconfigurable 2×1 CPW-Fed Rectangular Slot Antenna Array (RSAA) Based on Graphene For Wireless Communications","authors":"D. Elsheakh, O. Dardeer","doi":"10.21203/rs.3.rs-621748/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-621748/v1","url":null,"abstract":"\u0000 This article presents a 2×1 CPW ultra wideband rectangular slot antenna array (UWB-RSAA) with modified circular slot shape to support high data rate for wireless communications applications. The proposed antenna array dimensions are 0.7λo×0.8λo×0.064λo at the resonant frequency 1.8 GHz and it is fabricated on a commercially available rogers RO4003 substrate (with εr = 3.5), which is fed by using coplanar waveguide (CPW). A graphene layer is added on the other side of the substrate to achieve frequency reconfigurable and improve the antenna array gain. The -10 dB impedance bandwidth of the RSAA extends from 1.7 GHz to 2.6 GHz, from 3.2 to 3.8 GHz and from 5.2 GHz to 7 GHz with peak gain of 7.5 dBi at 6.5 GHz at 0 Volt bias over the operating band with average gain of 4.5 dBi. When the graphene bias is increased to 20 Volt, the antenna bandwidth extend from 1 GHz to 4 GHz and from 5 to 7 GHz with array peak gain 14 dBi at 3.5 GHz and average gain 7.5 dBi. The proposed array achieved linear polarized behaviour over the operating bands to be suitable for short range UWB wireless communications and object detection. All simulation carried out using 3D high frequency structure simulator (HFSS) Ansys ver. 15.","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"27 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76687444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Efficient Rotationally Symmetric Approach for the Design of Sparse Conformal Arrays in Wide Angle Scanning 广角扫描稀疏共形阵列的有效旋转对称设计方法

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-04-20 DOI: 10.47037/2020.ACES.J.360302

Guan Pengfei, Fan Zhenhong, Ding Dazhi, C. Rushan

{"title":"An Efficient Rotationally Symmetric Approach for the Design of Sparse Conformal Arrays in Wide Angle Scanning","authors":"Guan Pengfei, Fan Zhenhong, Ding Dazhi, C. Rushan","doi":"10.47037/2020.ACES.J.360302","DOIUrl":"https://doi.org/10.47037/2020.ACES.J.360302","url":null,"abstract":"This paper addresses a novel rotationally symmetric technique with multiple constraints for sparse conformal array synthesis. The purpose is to synthesis a sparse optimal common element positions on the conformal surface varying multiple patterns of wide\u0000angle scanning with the behavior of low sidelobe levels (SLL). The conformal surface aperture is partitioned into several rotationally symmetric sections. The element positions and element numbers of only one section need to be optimized, which contribute to the reduction of optimizing variables and computation resources. We formulate the synthesis problem as a constrained optimization problem, which takes the peak sidelobe level (PSLL) as the fitness function, and sets the total number of array elements, the minimum spacing between two adjacent elements to form multiple constraints. The Brain Storm Optimization (BSO) is further exploited into the synthesis problem with multiple constraints. A set of representative numerical examples are presented to assess the advantages and effectiveness of the proposed method.","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"30 5 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77967733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Single-Chip Two Antennas for MM-Wave Self-Powering and Implantable Biomedical Devices 用于毫米波自供电和植入式生物医学设备的单芯片双天线

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-04-15 DOI: 10.21203/RS.3.RS-332417/V1

D. Elsheakh, Somaya I Kayed, H. Shawkey

{"title":"Single-Chip Two Antennas for MM-Wave Self-Powering and Implantable Biomedical Devices","authors":"D. Elsheakh, Somaya I Kayed, H. Shawkey","doi":"10.21203/RS.3.RS-332417/V1","DOIUrl":"https://doi.org/10.21203/RS.3.RS-332417/V1","url":null,"abstract":"\u0000 Implantable biomedical applications arise the need for multi-band sensors with a wideband frequency channel for RF energy harvesting operation. Using a separate antenna for energy harvesting can simplify device circuit complexity and reduces operation frequency bands interference. This paper demonstrates the design of single chip with two separate integrated antennas for implantable biomedical applications. The two antennas have different structures with orthogonal polarization to achieve low mutual coupling and negligible interaction between them. The first antenna is a multi-band meander line (MBML) designed for multiple channels data communication, with quad operating bands in the MM-wave range from 22-64 GHz with area 1150 × 200μm2. The second antenna is a wideband dipole antenna (WBDA) for RF energy harvesting, operates in the frequency range extend from 28 GHz to 36 GHz with area 1300×250μm2. The proposed antennas are designed by using high frequency structure simulator (HFSS) and fabricated by using UMC180nm CMOS technology with total area 0.55 mm2. The MBML frequency bands operating bandwidths can reach 2 GHz at impedance bandwidth ≤ -10 dB. While, the WBDA antenna has gain -2 dB over the operating band extend from 28 GHz up to 36 GHz. The antenna performance is simulated separately and using the human-body phantom model that describes layers of fats inside body, and shows their compatibility for in body operation. Die measurements is performed using on wafer-probing RF PICOBROBES and shows the matching between simulation and measurement values.","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"105 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77047788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A New Method for Crosstalk Prediction Between Triple-twisted Strand (Uniform and Non-uniform) and Signal Wire based on CDBAS-BPNN Algorithm 基于CDBAS-BPNN算法的均匀和非均匀三绞线与信号线串扰预测新方法

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-02-27 DOI: 10.47037/2020.ACES.J.360101

Yanxing Ji, Wei Yan, Yang Zhao, Chao Huang, Shijin Li, Jianming Zhou, Xingfa Liu

{"title":"A New Method for Crosstalk Prediction Between Triple-twisted Strand (Uniform and Non-uniform) and Signal Wire based on CDBAS-BPNN Algorithm","authors":"Yanxing Ji, Wei Yan, Yang Zhao, Chao Huang, Shijin Li, Jianming Zhou, Xingfa Liu","doi":"10.47037/2020.ACES.J.360101","DOIUrl":"https://doi.org/10.47037/2020.ACES.J.360101","url":null,"abstract":"This paper proposes a novel crosstalk prediction method between the triple-twisted strand (uniform and non-uniform) and the signal wire, that is, using back-propagation neural network optimized by the beetle antennae search algorithm based on chaotic\u0000disturbance mechanism (CDBAS-BPNN) to extract the per unit length (p.u.l) parameter matrix, and combined with the chain parameter method to obtain crosstalk. Firstly, the geometric model and cross-sectional model between the uniform triple-twisted strand and the signal wire are established, and the corresponding model between the non-uniform triple-twisted strand and the signal wire is obtained by the Monte Carlo (MC) method. Then, the beetle antennae search algorithm based on chaotic disturbance mechanism (CDBAS) and backpropagation neural network (BPNN) are combined to\u0000construct a new extraction network of the p.u.l parameter matrix, and the chain parameter method is combined to predict crosstalk. Finally, in the verification and analysis part of the numerical experiments, comparing the crosstalk results of CDBAS-BPNN, BAS-BPNN and Transmission Line Matrix (TLM) algorithms, it is verified that the proposed method has better accuracy for the prediction of the model.","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"46 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75707050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Third-Order Bandpass Three-Dimensional Frequency Selective Surface with Multiple Transmission Zeros 具有多个传输零点的三阶带通三维频率选择曲面

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-02-15 DOI: 10.47037/2020.ACES.J.351214

Zhengyong Yu, Wanchun Tang

引用次数: 2

A Dual Band AMC Backed Antenna for WLAN, WiMAX and 5G Wireless Applications 一种用于WLAN、WiMAX和5G无线应用的双频AMC背馈天线

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI: 10.47037/2021.aces.j.360913

J. Ashish, A. P. Rao

引用次数: 5

A Wideband and Wide Scanning Tightly Coupled Dipole Array with Meta-Surface Wide-Angle Impedance Matching 一种具有元表面广角阻抗匹配的宽带宽扫描紧密耦合偶极子阵列

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI: 10.47037/2021.aces.j.360708

Yuan Ye, Zhaoyu Huang, Yun Jiang, Li-an Bian, Chang Zhu, Jingjian Huang, N. Yuan

引用次数: 3

Compact Wideband Dual-Band SIW Bandpass Filters 紧凑型宽带双带SIW带通滤波器

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI: 10.47037/2021.aces.j.360919

Yun Jiang, Lei Huang, Zhaoyu Huang, Yuan Ye, Boyuan Liu, W. Yuan, N. Yuan

{"title":"Compact Wideband Dual-Band SIW Bandpass Filters","authors":"Yun Jiang, Lei Huang, Zhaoyu Huang, Yuan Ye, Boyuan Liu, W. Yuan, N. Yuan","doi":"10.47037/2021.aces.j.360919","DOIUrl":"https://doi.org/10.47037/2021.aces.j.360919","url":null,"abstract":"─ A novel method to design compact wideband dual-band substrate integrated waveguide (SIW) bandpass filters (BPF) is proposed in this paper. By loading a novel beeline compact microstrip resonant cells (BCMRCs) with band-gap characteristics on top layer of SIW, two wide passbands separated by a stopband are generated. In order to enable the filter to have lower reflection coefficients in the two passbands, we use a tapered gradient line embedded with rectangular slots and loaded open stubs as the transition structure from microstrip line to SIW. The wideband dual-band BPF (DBBPF) is fabricated. The lower-band and upper-band fractional 3-dB bandwidths are 58.2% and 22.6%, while the measured minimum insertion losses (ILs) are 0.7 and 0.92 dB, respectively. The stepped-impedance openloop ring resonator (SIOLRR) is introduced in order to improve the selectivity of the filter. The wideband DBBPF with SIOLRR is studied, simulated and measured. Two transmission zeros are generated in the stop band between the two passbands. Good agreement between simulated and measured results can be obtained. Index Terms ─ Complementary split ring resonators, defected ground structure, dual-band bandpass filter, stepped-impedance open-loop ring resonator, substrate integrated waveguide.","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84161413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dictionary Learning and Waveform Design for Dense False Target Jamming Suppression 稠密假目标干扰抑制的字典学习与波形设计

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI: 10.47037/2021.aces.j.36098

Tao Jiang, L. Yu, Jiangnan Xing, Yinfeng Xia, Zhe Du, Yingsong Li, Guoning Zhi, Yanbo Zhao

{"title":"Dictionary Learning and Waveform Design for Dense False Target Jamming Suppression","authors":"Tao Jiang, L. Yu, Jiangnan Xing, Yinfeng Xia, Zhe Du, Yingsong Li, Guoning Zhi, Yanbo Zhao","doi":"10.47037/2021.aces.j.36098","DOIUrl":"https://doi.org/10.47037/2021.aces.j.36098","url":null,"abstract":"─ For linear frequency modulation (LFM) pulse radars, dense false targets generated by new system jamming seriously damage the performance of such radar systems. In order to avoid the influence of dense false target jamming, an anti-jamming strategy combining waveform design and sparse decomposition are proposed. Specifically, the radar system transmits a random pulse initial phase (RPIP) signal, and uses peak detection method to detect the deception jamming. The phase distribution of the RPIP signal is partially randomly perturbed for a jamming, and we use optimization algorithm to design a phase perturbed LFM (PPLFM) signal with good autocorrelation characteristics. Using the correlation function of the designed signal, the target sample set and the jamming sample set are constructed, and the target echo and the jamming signal are separated using designed dictionary learning method to achieve suppression of dense false target jamming and range side-lobes. The effectiveness of the proposed method is verified by numerical simulation, and the results proved that this proposed method maintains good anti-jamming performance under low signal-tonoise ratio (SNR). Index Terms ─ Anti-jamming, dense false target jamming, dictionary learning, jamming detection, waveform design.","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"35 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86638344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiation Pattern Synthesis and Mutual Coupling Compensation in Spherical Conformal Array Antennas 球面共形阵列天线的辐射方向图合成与互耦合补偿

IF 0.7 4区计算机科学

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI: 10.47037/2020.aces.j.360612

T. A. Khan, M. I. Khattak, A. Tariq

{"title":"Radiation Pattern Synthesis and Mutual Coupling Compensation in Spherical Conformal Array Antennas","authors":"T. A. Khan, M. I. Khattak, A. Tariq","doi":"10.47037/2020.aces.j.360612","DOIUrl":"https://doi.org/10.47037/2020.aces.j.360612","url":null,"abstract":"This paper presents a novel technique based on Hybrid Spatial Distance Reduction Algorithm (HSDRA), to compensate the effects of deformity and mutual coupling occurred due to surface change in conformal arrays. This antenna surface deformation shifts the position of null points and loss of the main beam resulting in reduced antenna gain along with substantial undesirable effects on the antenna performance. The proposed algorithm, which cumulatively incorporates the Linearly Constraint Least Square Optimization (LCLSO) and Quadratically Constraint Least Square Optimization (QCLSO) techniques, is formulated to minimize/reduce the absolute distance between the actual (simulated/measured) radiation pattern and the desired radiation pattern while keeping the direction of main beam and nulls position under control. In particular, a 4x4 conformal microstrip phased array from planar surface is deformed to prescribe spherical-shape surface with various radii of curvature, is validated. For the enhancement of Gain of the conformal array antenna, Gain Maximization Algorithm is also proposed, the simulated results of which is compared to the traditional Phase compensation technique and unconstraint least squares optimization. The analytical results for both planar and spherical deformed configurations are first evaluated in MATLAB and then validated through Computer Simulation Technology (CST).","PeriodicalId":8207,"journal":{"name":"Applied Computational Electromagnetics Society Journal","volume":"39 4 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91027427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1