Aeu-International Journal of Electronics and Communications最新文献_第8页

A high-frequency memristor emulator: A novel design based on current mode analog building blocks 高频忆阻模拟器：一种基于电流模式模拟模块的新设计

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-15 DOI: 10.1016/j.aeue.2025.156176

Gouranga Mandal , Mourina Ghosh , Shekhar Suman Borah , Pulak Mondal , Santosh Kumar

引用次数: 0

FPGA-based transceiver implementation with circular polarization excitation for microwave transmission measurement while drilling 基于fpga的圆偏振激励微波随钻传输测量收发器实现

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-19 DOI: 10.1016/j.aeue.2025.156173

Jing Chen , Liexin Peng , Wenjun Shan , Liang Lang

{"title":"FPGA-based transceiver implementation with circular polarization excitation for microwave transmission measurement while drilling","authors":"Jing Chen , Liexin Peng , Wenjun Shan , Liang Lang","doi":"10.1016/j.aeue.2025.156173","DOIUrl":"10.1016/j.aeue.2025.156173","url":null,"abstract":"<div><div>Microwave transmission measurement while drilling (MMWD) utilizes the drill-pipe as a circular waveguide, offering high transmission rates and robust real-time performance for air-drilling applications. This paper presents the design and implementation of a high-efficiency MMWD system that addresses critical challenges including polarization mismatch, severe signal attenuation, and low level of system integration. The system operates in the dominant TE<sub>11</sub> mode at 3.2 GHz, ensuring low-loss single-mode transmission. To enhance robustness in non-ideal drill pipes, a novel excitation scheme combining a waveguide circular polarizer with a microstrip Yagi antenna is proposed to generate circularly polarized waves. This design reduces polarization mismatch loss to below 1.8 dB while occupying only 10.4 % of the pipe's internal cross-section area. Furthermore, a spread-spectrum physical-layer transceiver implemented on a Xilinx Artix-7 FPGA enables reliable data communication with improved noise resilience. Experimental results demonstrate reliable communication at 230 kbps with bit-error rate below 10<sup>−5</sup> under total 67 dB attenuation. Together with the modeled drill-pipe attenuation, the experimental results establish a solid theoretical and experimental foundation for long-distance real-time transmission in drilling environments.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"206 ","pages":"Article 156173"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145885913","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

SIW H-plane wideband filtering horn antenna with miniaturized longitudinal dimension 纵向尺寸小型化的SIW h面宽带滤波喇叭天线

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-13 DOI: 10.1016/j.aeue.2025.156172

Yong-Dan Kong, Ji Qi, Qing-Xin Chu

{"title":"SIW H-plane wideband filtering horn antenna with miniaturized longitudinal dimension","authors":"Yong-Dan Kong, Ji Qi, Qing-Xin Chu","doi":"10.1016/j.aeue.2025.156172","DOIUrl":"10.1016/j.aeue.2025.156172","url":null,"abstract":"<div><div>A substrate integrated waveguide (SIW) H-plane horn antenna featuring wideband filtering characteristics and a reduced longitudinal size is proposed in this paper. Firstly, the extra substrates and dipole array are loaded on the conventional SIW H-plane horn antenna for enhancing the impedance matching at the horn aperture. Secondly, the horn’s longitudinal dimension is significantly shortened by nearly 70% for miniaturization; whereas, the field distributions at the horn aperture are destroyed, which results in the decreased gain. Thirdly, by adopting three sets of metal-via arrays and four slits, the gain is improved as the quasi-uniform phase and amplitude distributions. Furthermore, two modes of radiation are also generated below and above the passband, which generates two radiation nulls on the gain curve, thus realizing the filtering response in Ka band while keeping the horn size unchanged. Finally, the proposed antenna is fabricated, and the proposed antenna achieves wideband filtering response with the impedance bandwidth of 27.27% (30.4–40 GHz) and two radiation nulls. The peak gain is 12.27 dB.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156172"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145790136","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

Compact MIMO antenna employing inductive-capacitive coupling and honeycomb defected ground structure 采用电感-电容耦合和蜂窝缺陷接地结构的紧凑MIMO天线

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2026-01-08 DOI: 10.1016/j.aeue.2026.156208

Trishna Doloi , Gouree Shankar Das , Partha Protim Kalita , Yatish Beria , Reeta Devi , Akash Buragohain

{"title":"Compact MIMO antenna employing inductive-capacitive coupling and honeycomb defected ground structure","authors":"Trishna Doloi , Gouree Shankar Das , Partha Protim Kalita , Yatish Beria , Reeta Devi , Akash Buragohain","doi":"10.1016/j.aeue.2026.156208","DOIUrl":"10.1016/j.aeue.2026.156208","url":null,"abstract":"<div><div>This work presents a fractal 2-port multiple-input multiple-output (MIMO) antenna with wideband characteristics. The design covers a frequency range of 5.2–7.8 GHz, which falls under the C-band of the electromagnetic spectrum and achieves a 40% relative bandwidth at 6.5 GHz center frequency. The antenna has a compact dimension of 28 mm × 22 mm × 1.6 mm. It consists of two planar monopole radiating elements with partial ground modifications and a sequence of parasitic slots strategically placed in the ground plane. The identical radiating patches are positioned symmetrically to reduce correlation. Inductive resonant lines are incorporated into the ground plane to work as decoupling components. This suppresses surface current coupling between the antenna ports, thereby improving isolation despite using a low-cost substrate. A honeycomb defected ground structure (DGS) layout is etched, which helps in expanding the impedance bandwidth. It provides an isolation level of more than −15 dB. The diversity parameters like channel capacity loss (CCL), mean effective gain (MEG), etc. are found to be within the optimal limits. These traits make the small wideband antenna suitable for high-performance wireless applications such as the 5.9 GHz WLAN, 5.8 GHz Wi-Fi, and Wi-Fi 6/6E (IEEE 802.11ax), among others.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"206 ","pages":"Article 156208"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145927449","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 low-profile high-gain SIW center-fed millimeter-wave phased array with wide-angle scanning for 5G applications 面向5G应用的低姿态高增益SIW中心馈电毫米波相控阵广角扫描

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-11-15 DOI: 10.1016/j.aeue.2025.156134

Lichang Huang , Qunyi Feng , Sha Xu

引用次数: 0

Design of a dual-band capsule antenna based on effective relative permittivity for realistic implantable medical devices 基于有效相对介电常数的实用型植入式医疗器械双频胶囊天线设计

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-23 DOI: 10.1016/j.aeue.2025.156188

Mert Ciflik, S. Cumhur Basaran

{"title":"Design of a dual-band capsule antenna based on effective relative permittivity for realistic implantable medical devices","authors":"Mert Ciflik, S. Cumhur Basaran","doi":"10.1016/j.aeue.2025.156188","DOIUrl":"10.1016/j.aeue.2025.156188","url":null,"abstract":"<div><div>The effective relative permittivity (<em>ε</em><sub><em>eff</em></sub>) of planar capsule antennas differs significantly from that of antennas implanted directly into biological tissue. However, this distinction has been largely overlooked in most planar capsule antenna designs reported in the recent literature for implantable medical devices (IMDs), where it is commonly assumed that antenna performance in direct tissue implantation is equally valid within a capsule environment. In this article, the <em>ε</em><sub><em>eff</em></sub> of a microstrip antenna is first calculated using an efficient analytical model for both implantation scenarios. Based on these insights, a dual-band planar capsule antenna with a novel configuration is proposed for implantable and ingestible applications, carefully designed with consideration of the effective relative permittivity to ensure robust performance. The proposed antenna features a compact footprint of 14 mm × 14 mm × 0.634 mm<sup>3</sup> and operates in both the 402 MHz MICS and 2.4 GHz ISM bands. The miniaturized dual-band antenna configuration is achieved by combining an efficient radiator, a shorting pin, and a slotted ground plane. A prototype of the proposed antenna, whose numerical design and analysis were conducted on both homogeneous muscle tissue and realistic human models, was encapsulated, and its performance was measured using minced meat.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"206 ","pages":"Article 156188"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842265","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, implementation, and explainable AI evaluation of a compact UWB microstrip patch antenna for 6G applications 用于6G应用的紧凑型超宽带微带贴片天线的设计、实现和可解释的AI评估

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-27 DOI: 10.1016/j.aeue.2025.156178

Farha K. A. , Jasmine P. M. , Fasmi K. A.

{"title":"Design, implementation, and explainable AI evaluation of a compact UWB microstrip patch antenna for 6G applications","authors":"Farha K. A. , Jasmine P. M. , Fasmi K. A.","doi":"10.1016/j.aeue.2025.156178","DOIUrl":"10.1016/j.aeue.2025.156178","url":null,"abstract":"<div><div>The 6.425 GHz to 8.4 GHz frequency band is gaining recognition as a core spectrum for 6G, offering a strong balance between coverage, capacity, and deployment efficiency. As part of the ultra-wideband (UWB) spectrum, this band delivers expansive bandwidth and robust short-range communication, making it ideal for next-generation applications. This paper presents the design, analysis, and implementation of edge-fed dual band rectangular microstrip patch antenna with improved impedance bandwidth through slot-based defected ground structure for 6G applications. The antenna is designed on a substrate of FR4, which has a dielectric constant of 4.4. The measurement result shows that the proposed antenna operates efficiently from 3.31 GHz to 10.53 GHz. The antenna achieves an excellent Voltage Standing Wave Ratio less than 2 over the operational band, indicating perfect impedance matching and minimal signal reflection. This study integrates a machine-learning-assisted framework for bandwidth prediction with SHAP-based explainable AI analysis to identify the most influential design parameters, providing valuable physical insights for performance optimization. It provides a faster and more efficient alternative to repeated full-wave simulations. The combined Electromagnetic–Machine Learning approach enhances both accuracy and explainability, contributing a novel and efficient methodology for antenna design in 6G communication systems.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"206 ","pages":"Article 156178"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145885914","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 novel 2-D pattern reconfigurable array using beamforming networks and reconfigurable antenna array 一种利用波束形成网络和可重构天线阵列的二维方向图可重构阵列

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-04 DOI: 10.1016/j.aeue.2025.156120

Tian-Gui Huang , Sa Yang , Fu-Chang Chen , Kai-Ran Xiang , Ming-Yang Su

{"title":"A novel 2-D pattern reconfigurable array using beamforming networks and reconfigurable antenna array","authors":"Tian-Gui Huang , Sa Yang , Fu-Chang Chen , Kai-Ran Xiang , Ming-Yang Su","doi":"10.1016/j.aeue.2025.156120","DOIUrl":"10.1016/j.aeue.2025.156120","url":null,"abstract":"<div><div>This paper presents a novel methodology for designing a two-dimensional (2-D) pattern reconfigurable array. The design integrates a conventional 4 × 4 Butler matrix with a reconfigurable antenna array to achieve two-dimensional beamforming capabilities. Beamforming in one dimension is accomplished via the 4 × 4 Butler matrix, while in the other orthogonal direction, beam steering is achieved through the use of two pairs of metal walls vertically placed on both sides of the driven antenna elements. Each pair of metal walls is loaded with a PIN diode at the center, accompanied by its DC biasing feeding network. By controlling the different states of the switching PIN diodes loaded between the metal walls, the beam steering characteristic can be obtained. An experimental antenna is designed and manufactured to validate this approach. When the antenna is excited from various ports, it yields four distinct radiation orientations within the <span><math><mrow><mi>x</mi><mi>o</mi><mi>z</mi></mrow></math></span> plane. For each port activation, the antenna exhibits three unique radiation patterns, resulting in three different radiation directions in the plane orthogonal to the <span><math><mrow><mi>x</mi><mi>o</mi><mi>z</mi></mrow></math></span> plane. This configuration ultimately realizes 2-D beam scanning, encompassing a total of twelve directions.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156120"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736903","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 and optimization of a 1–7.8 GHz wideband low noise amplifier with 2 dB noise figure 噪声系数为2 dB的1-7.8 GHz宽带低噪声放大器的设计与优化

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-02 DOI: 10.1016/j.aeue.2025.156163

Muhammad Hashim, Zhiqun Li, Qin Li, Weiwen Lin

{"title":"Design and optimization of a 1–7.8 GHz wideband low noise amplifier with 2 dB noise figure","authors":"Muhammad Hashim, Zhiqun Li, Qin Li, Weiwen Lin","doi":"10.1016/j.aeue.2025.156163","DOIUrl":"10.1016/j.aeue.2025.156163","url":null,"abstract":"<div><div>An ultra-wideband balun low-noise amplifier (LNA) operating from 1 to 7.8 GHz is proposed for multi-standard wireless applications. The architecture integrates a <em>g<sub>m</sub></em>-boosted common-source (CS) amplifier with a common-gate common-source (CG–CS) balun to enable single-to-differential signal conversion. A complementary nMOS-pMOS configuration is employed to enhance transconductance, reduce noise, and improve gain. A cross-coupled balancing circuit (CBC) is incorporated in the load to provide noise cancellation along with gain and phase correction. Wideband input matching is achieved through the combination of a resistive feedback buffer (RFB) and a series on-chip inductor <em>L<sub>g</sub></em>. Theoretical analysis, closed-form expressions, and simulation results demonstrate that the CBC improves the noise figure (NF), while the RFB and <em>L<sub>g</sub></em> enable effective input impedance matching. The LNA was fabricated using the TSMC 40-nm CMOS process, and measured results show a gain of 18.5 dB and an NF ranging from 2 to 3 dB. Additional performance metrics include an input 1-dB compression point (IP1dB) of −17 dBm, an input third-order intercept point (IIP3) of −1 dBm at 4 GHz, and S<sub>11</sub> less than −10 dB across the 1–7.8 GHz band. The design consumes 12 mA from a 1.2 V supply and occupies an active chip area of 0.16 mm<sup>2</sup>.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156163"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145736900","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

Analysis of gain–efficiency relationship in a wideband rectenna for RF-powered IoT devices 射频供电物联网设备宽带整流天线增益效率关系分析

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-04 DOI: 10.1016/j.aeue.2025.156158

Yassmeen M. Afify , Ahmed Allam , Haruichi Kanaya , Adel B. Abdelrahman

{"title":"Analysis of gain–efficiency relationship in a wideband rectenna for RF-powered IoT devices","authors":"Yassmeen M. Afify , Ahmed Allam , Haruichi Kanaya , Adel B. Abdelrahman","doi":"10.1016/j.aeue.2025.156158","DOIUrl":"10.1016/j.aeue.2025.156158","url":null,"abstract":"<div><div>This paper investigates the impact of antenna gain on RF-to-DC power conversion efficiency (PCE) and sensitivity in a compact, wideband rectenna. We propose an asymmetric-arm I-slot (AAIS) antenna used in two configurations: (1) low-gain standalone, and (2) high-gain with a metallic reflecting surface (MRS) spaced at 0.15λ<sub>0</sub> beneath the ground plane. Both configurations use the same single-stage voltage-doubler (VD) rectifier and load, enabling a controlled comparison. The MRS-backed AAIS achieves a peak gain of 9.2 dBi and an 840 MHz (22.2 %) bandwidth (3.36–4.20 GHz) while using a single radiating element. Compared with the low-gain variant, the high-gain rectenna delivers a 20 % absolute PCE improvement (60 % at 2 dBm vs. ∼ 40 % at 4 dBm) and reproduces the low-gain peak PCE at − 11 dBm (15 dB lower). The high-gain design also yields higher and more stable DC output (1.25 V at 0 dBm, 3.6 GHz, ±0.1 V across 3.5–4.0 GHz) and maintains usable DC (>0.5 V) down to − 7.5 dBm. These results demonstrate that a reflector-enhanced, single-element AAIS rectenna achieves simultaneous wideband operation, high efficiency, and improved low-power sensitivity for RF energy harvesting and WPT.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156158"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684715","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