Aeu-International Journal of Electronics and Communications最新文献_第10页

A shorting post loaded symmetric non-uniform metasurface antenna for broadband circular polarization 用于宽带圆极化的短路柱加载对称非均匀元面天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-07-02 DOI: 10.1016/j.aeue.2024.155416

Subhagya Pani , Dhruba C. Panda , Deepak K. Naik , Rajanikanta Swain

{"title":"A shorting post loaded symmetric non-uniform metasurface antenna for broadband circular polarization","authors":"Subhagya Pani , Dhruba C. Panda , Deepak K. Naik , Rajanikanta Swain","doi":"10.1016/j.aeue.2024.155416","DOIUrl":"https://doi.org/10.1016/j.aeue.2024.155416","url":null,"abstract":"<div><p>This paper proposes a symmetric 3 × 4 non-uniform metasurface-based patch antenna to achieve broadband circular polarization. The metasurface consists of rectangular meta-elements symmetrically placed along the vertical axis. To increase the impedance and 3 dB axial ratio bandwidth (ARBW), a shorting post is used in the antenna. The design analysis of the antenna uses the characteristic mode analysis (CMA) of CST MWS. The antenna achieves 39.7% (5.81–8.69 GHz) impedance bandwidth, 33% (5.34–7.45 GHz) 3 dB ARBW, and a peak gain of 7.43 dBi. It is a low-profile antenna with a size of 34 × 34 × 3.04 mm<span><math><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></math></span> (0.73<span><math><mi>λ</mi></math></span> <span><math><mrow><mo>×</mo><mspace></mspace><mn>0</mn><mo>.</mo><mn>73</mn><mi>λ</mi></mrow></math></span> <span><math><mrow><mo>×</mo><mspace></mspace><mn>0</mn><mo>.</mo><mn>06</mn><mi>λ</mi></mrow></math></span>, where <span><math><mi>λ</mi></math></span> is free space wavelength with an operational frequency of 6.4 GHz). A prototype is fabricated on an I-Tera MT40 substrate. The experimental results agree well with the measured results.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141593197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 automatic tuning method for bandpass cavity filter based on stepping search algorithm 基于步进搜索算法的带通空腔滤波器自动调整方法

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-30 DOI: 10.1016/j.aeue.2024.155396

Lai Jiang , Wen-Kai Deng , Xiao-Chuan Zhang , Xiao-Lin Jin , Tao Huang

引用次数: 0

Iterative hybrid compressive sensing-based channel estimation method for intelligent reflecting surface-supported millimeter wave systems 基于迭代混合压缩传感的智能反射面支持毫米波系统信道估计方法

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-28 DOI: 10.1016/j.aeue.2024.155415

Olutayo O. Oyerinde , Adam Flizikowski , Tomasz Marciniak

{"title":"Iterative hybrid compressive sensing-based channel estimation method for intelligent reflecting surface-supported millimeter wave systems","authors":"Olutayo O. Oyerinde , Adam Flizikowski , Tomasz Marciniak","doi":"10.1016/j.aeue.2024.155415","DOIUrl":"https://doi.org/10.1016/j.aeue.2024.155415","url":null,"abstract":"<div><p>The Intelligent reflecting surfaces (IRSs) have been established to show the capability to enhance spectral and energy efficiency by using the passive beamforming at the IRS point and joint optimization of the active beamforming at the base station (BS). However, in the smart wireless environments in which mostly passive RISs are deplored the estimation of the channel state estimation is challenging. This paper, therefore, aims to propose a channel estimation scheme with an improved performance in comparison with some other recently proposed estimation schemes. The proposed channel estimation scheme employs the hybrid strategy to combine the improved versions of traditional Orthogonal Matching Pursuit (OMP) and Subspace Pursuit (SP) compressive sensing algorithms as a basis for the proposed estimator. The proposed estimator, through computer simulations, shows improved performance when compared with the other four channel estimators that were recently documented in literature though with a slightly high computational complexity cost.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1434841124003017/pdfft?md5=83f8690523915002d4a314a3f68050c3&pid=1-s2.0-S1434841124003017-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Null-filled high gain airborne antenna with metasurface for emergency communication 用于紧急通信的带元面的空填充高增益机载天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-28 DOI: 10.1016/j.aeue.2024.155417

WenQiang Zhou , Linyan Guo , Xiaofei Wang , Jinfeng Yan , Chunyu Pan

引用次数: 0

Retraction notice to “Enhancing UAV communication links with reconfigurable intelligent surfaces” [Int. J. Electron. Commun. (AEÜ) 171 (2023) 154933] 关于 "利用可重构智能表面增强无人机通信链路 "的撤稿通知 [Int. J. Electron. Commun. (AEÜ) 171 (2023) 154933]

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-25 DOI: 10.1016/j.aeue.2024.155414

引用次数: 0

Dual band notched superwideband MIMO antenna for 5G and 6G applications 用于 5G 和 6G 应用的双频缺口超宽带 MIMO 天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-25 DOI: 10.1016/j.aeue.2024.155419

Sandesh Singh Shekhawat , Deepshikha Lodhi , Sarthak Singhal

{"title":"Dual band notched superwideband MIMO antenna for 5G and 6G applications","authors":"Sandesh Singh Shekhawat , Deepshikha Lodhi , Sarthak Singhal","doi":"10.1016/j.aeue.2024.155419","DOIUrl":"https://doi.org/10.1016/j.aeue.2024.155419","url":null,"abstract":"<div><p>In this article, a compact super wideband multiple input multiple output (MIMO) antenna with dual band elimination feature is presented. The antenna element comprises of modified square shaped radiating element and coplanar waveguide (CPW) with asymmetric ground planes. A dual-port MIMO configuration is proposed for spatial diversity. It has compact size of dimensions 18 × 37.5 × 1.6 mm<sup>3</sup>. It has frequency band of impedance matching (VSWR < 2) from 3.9– > 150 GHz (%BW > 189.86 %). The radiator and feedline are loadedwith modified M- and U-shaped slots to achieve a band notch at 5.5 GHz (WLAN) and 7.5 GHz (X-band satellite communication), respectively. A modified staircase shaped structure is used between the two ports to achieve an intraport isolation of > 20 dB at maximum frequencies. The MIMO antenna has envelope correlation coefficient based on scattering parameters < 0.005, envelope correlation coefficient based on farfield parameters < 0.08, peak gain of 8.63dBi, Mean Effective Gain (MEG) < -3dB, multiplexing efficiency > -4.0 dB, channel capacity loss (CCL) < 0.4bits/sec/Hz to signify its suitability for MIMO applications. The measured and the simulated outcomes are found to be close to each other. The proposed antenna element and MIMO antenna structure will be suitable for Internet of Things (IoT), 5G, and 6G due to their superwideband (SWB) bandwidth, desirable radiation properties and diversity performance.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141479323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 broadband Millimeter-Wave rectenna using substrate Integrated Waveguide 使用基底集成波导的宽带毫米波整流天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-22 DOI: 10.1016/j.aeue.2024.155410

Jie Zhou , Ping Lu , Yue Liu , Dongchen Zhang , Jiahe Shi , Yuexin Yang , Mingyi Luo

引用次数: 0

Charge-sensitive amplifier design for high-speed interface readout front-end ASICs 用于高速接口读出前端 ASIC 的电荷敏感放大器设计

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-21 DOI: 10.1016/j.aeue.2024.155406

Anastasios Michailidis , Vasiliki Gogolou , Thomas Noulis , Jochen Dingfelder

{"title":"Charge-sensitive amplifier design for high-speed interface readout front-end ASICs","authors":"Anastasios Michailidis , Vasiliki Gogolou , Thomas Noulis , Jochen Dingfelder","doi":"10.1016/j.aeue.2024.155406","DOIUrl":"https://doi.org/10.1016/j.aeue.2024.155406","url":null,"abstract":"<div><p>The design of Charge-Sensitive Amplifiers (CSAs) and the peaking time impact on high-speed interface readout front-end ASICs for 3D pixel detectors with high timing precision, is addressed in this work. The performance of the CSAs is extracted for several architectures, implemented in 180 nm CMOS, 130 nm SiGe BiCMOS, 65 nm CMOS and 22 nm FD-SOI CMOS process nodes for comparison purposes versus technology scaling. The peaking time, the charge gain, the noise and the bandwidth are simulated for all implemented CSAs, while the best CSA candidate performance-wise for high-speed and high timing precision readout ASICs is designated. Furthermore, a full readout chain, capable of resolving particles with a time precision of <span><math><mrow><mo><</mo><mn>200</mn></mrow></math></span> ps, is implemented and simulated. The designed readout ASIC exhibits a Time-Walk performance of <span><math><mrow><mo>≤</mo><mn>180</mn></mrow></math></span> ps, for input charges of <span><math><mrow><mn>6</mn><mo>.</mo><mn>3</mn><mo>−</mo><mn>10</mn><mspace></mspace><mi>k</mi><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math></span>, while inducing an equivalent noise charge of <span><math><mrow><mo>≈</mo><mn>570</mn><mspace></mspace><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math></span>.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141480014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Two-axis beamsteering using a wideband Butler matrix and series-fed arrays for millimeter wave frequencies fabricated on metallic-nanowire-membrane platform 使用宽带巴特勒矩阵和串联馈电阵列进行双轴波束转向，用于在金属纳米线膜平台上制造毫米波频率

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-21 DOI: 10.1016/j.aeue.2024.155405

Elígia Simionato , Ivan Aldaya , Guilherme S. Rosa , João E.G. Lé , Ariana L.C. Serrano , Gustavo P. Rehder , Rafael A. Penchel

{"title":"Two-axis beamsteering using a wideband Butler matrix and series-fed arrays for millimeter wave frequencies fabricated on metallic-nanowire-membrane platform","authors":"Elígia Simionato , Ivan Aldaya , Guilherme S. Rosa , João E.G. Lé , Ariana L.C. Serrano , Gustavo P. Rehder , Rafael A. Penchel","doi":"10.1016/j.aeue.2024.155405","DOIUrl":"https://doi.org/10.1016/j.aeue.2024.155405","url":null,"abstract":"<div><p>This work presents a two-axis beamsteering system designed for WLAN millimeter-wave frequencies. The system comprises a wideband Butler matrix and series-fed arrays. The Butler matrix, implemented with microstrip lines, features a wideband crossover with low phase imbalance, enabling four discrete beamsteering directions on the radiation H-plane. The series-fed arrays enable frequency-dependent beamsteering on the E-plane. The entire system was fabricated on a nanoporous alumina substrate using metallic-nanowire-membrane technology. Measurement results indicate an impedance bandwidth of 17.71%, which accommodates typical requirements for 60 GHz WLAN applications. Additionally, beamsteering in the desired directions was achieved. The presented Butler matrix structure stands out as one of the most compact found in the reviewed literature. The produced device successfully balances wideband behavior, compactness, and fabrication simplicity.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141480015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Design of a low profile and ultraminiaturized frequency selective surface with dual band-stop response 设计具有双重带阻响应的扁平化超微型频率选择表面

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-06-21 DOI: 10.1016/j.aeue.2024.155412

Zain Ul Abidin, Qunsheng Cao, Muhammad Sajjad

{"title":"Design of a low profile and ultraminiaturized frequency selective surface with dual band-stop response","authors":"Zain Ul Abidin, Qunsheng Cao, Muhammad Sajjad","doi":"10.1016/j.aeue.2024.155412","DOIUrl":"https://doi.org/10.1016/j.aeue.2024.155412","url":null,"abstract":"<div><p>In this paper, a miniaturized dual-band frequency selective surface (FSS) for electromagnetic shielding applications is presented. The FSS unit cell provides band-stop response at the resonant frequencies of 0.95 GHz and 2.52 GHz. The FSS element is constructed by employing convoluted metal stripes that are positioned on both sides of the substrate. The proposed configuration enhances the electrical length of the resonator while maintaining its physical dimensions. Moreover, the unit cell of the FSS exhibits rotational symmetry, which enables polarization independent operation. The designed FSS structure demonstrates excellent miniaturization characteristics, with a cell size and thickness of 0.019 λ<sub>0</sub> × 0.019 λ<sub>0</sub>, and 0.00048 λ<sub>0</sub>, respectively. The cell size and thickness are calculated at the lower resonating frequency of 0.95 GHz. In addition, the stability of the proposed FSS structure is observed for both the TE and TM polarizations across an incident angle range of 0° to 80°. The resonating behavior of the structure is elucidated with the help of electric field and surface current distribution. Experimental verification of the dual-band FSS is conducted through the fabrication of a prototype on a FR4 substrate. The measured transmission coefficients are in good agreement with the simulated response for both TE and TM modes. Compared with the dual-band FSSs previously reported, the proposed FSS has the significant advantages of low profile and miniaturization.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141444251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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