Aeu-International Journal of Electronics and Communications最新文献_第9页

Design of High Order Wideband Bandpass Filter with Wide Stopband Based on Hairpin Ring Resonator 基于发夹环谐振器的高阶宽带宽阻带带通滤波器设计

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-15 DOI: 10.1016/j.aeue.2025.155728

Yiwei Jiao , Haiwen Liu , Hongliang Tian , Ruolin Wang , Fei Yang

{"title":"Design of High Order Wideband Bandpass Filter with Wide Stopband Based on Hairpin Ring Resonator","authors":"Yiwei Jiao , Haiwen Liu , Hongliang Tian , Ruolin Wang , Fei Yang","doi":"10.1016/j.aeue.2025.155728","DOIUrl":"10.1016/j.aeue.2025.155728","url":null,"abstract":"<div><div>In this paper, a compact high order wideband bandpass filter (BPF) with wide stopband is proposed, which is aiming at C-band satellite communications. Firstly, the hairpin ring resonator (HRR) with two independently tunable resonant modes is analyzed. Then mechanism of how feed lines are transformed as resonators to generate extra transmission poles in wideband filter design is investigated. After that, by cascading HRRs and utilizing its dual mode, a series of wideband BPF with two, three and four HRRs are designed to illustrate the wideband BPF design procedures of using multi-mode resonators and feed lines, which the selectivity of the passband is improved because of cascading more HRRs. Finally, T-shaped stubs and ladder-like stubs are introduced to generate additional transmission zeros, which expand the range of upper stopband. A 10-order wideband BPF is fabricated based on the proposed design method, which the passband is from 3.28 GHz to 5.8 GHz and fraction bandwidth is about 55.5 %. The upper stopband is from 6.22 GHz to 19.3 GHz (4.2 <em>f</em><sub>0</sub>) and rejection is below −28.9 dB. There is a good agreement between the simulation and measurement.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155728"},"PeriodicalIF":3.0,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454426","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 validation of a multi-band metamaterial absorber for microwave applications 微波多波段超材料吸收器的设计与验证

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-13 DOI: 10.1016/j.aeue.2025.155718

Muhammad Amir Khalil , Mohammad Tariqul Islam , Wong Hin Yong , Md. Shabiul Islam , Hui Hwang Goh , Tonni Agustiono Kurniawan , Naveed Ur Rehman Junejo , Mohamed S. Soliman , Abdul Waheed Khawaja

{"title":"Design and validation of a multi-band metamaterial absorber for microwave applications","authors":"Muhammad Amir Khalil , Mohammad Tariqul Islam , Wong Hin Yong , Md. Shabiul Islam , Hui Hwang Goh , Tonni Agustiono Kurniawan , Naveed Ur Rehman Junejo , Mohamed S. Soliman , Abdul Waheed Khawaja","doi":"10.1016/j.aeue.2025.155718","DOIUrl":"10.1016/j.aeue.2025.155718","url":null,"abstract":"<div><div>An innovative metamaterial (MTM)-based microwave absorber is proposed to feature a unique combination of rectangular and hexagonal resonators, tailored for multi-band absorption across the S, C, and X frequency bands. Built on a Rogers RT 3010 substrate, the proposed Metamaterial Absorber (MMA) demonstrates enhanced absorption efficiency, polarization independence, and angular stability. The absorber achieves multiple resonances at 3.36 GHz, 3.64 GHz, 5.06 GHz, and 6.36 GHz, with absorption values 90 %, 99.5 %, 99.7 % and 99.8 % validated through simulation analysis. The design evolution, progressing through resonator stages A, B, C, and D, highlights the impact of structural complexity on performance improvements. Experimental results align closely with simulations, showcasing minimal deviations due to fabrication imperfections. With its compact dimensions and high effective medium ratio (EMR), this MMA surpasses existing designs in multi-band functionality and efficiency, making it suitable for applications such as electromagnetic interference (EMI) shielding, radar systems, and wireless communication.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155718"},"PeriodicalIF":3.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419245","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

Single/multi-band waveguide protector based on adaptive switching transmission poles and zeros 基于自适应开关传输极点和零点的单/多波段波导保护器

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-12 DOI: 10.1016/j.aeue.2025.155716

Xian Wang , Dongfang Zhou , Yue Wang , Dewei Zhang , Jinjin Wei , Pin Lu , Weida Bai

引用次数: 0

Wide-band metamaterial absorber for sub-6 GHz 5G applications: Reducing specific absorption rate 用于sub-6 GHz 5G应用的宽带超材料吸收器：降低比吸收率

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-12 DOI: 10.1016/j.aeue.2025.155709

Punyatoya Routray, Debalina Ghosh

引用次数: 0

Employing a novel partitioning approach for the power transfer efficiency enhancement of near-field planar WPT system 采用一种新的分块方法提高近场平面WPT系统的功率传输效率

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-12 DOI: 10.1016/j.aeue.2025.155714

Yerassyl Sabyrov, Zhanel Kudaibergenova, Mohammad Hashmi

{"title":"Employing a novel partitioning approach for the power transfer efficiency enhancement of near-field planar WPT system","authors":"Yerassyl Sabyrov, Zhanel Kudaibergenova, Mohammad Hashmi","doi":"10.1016/j.aeue.2025.155714","DOIUrl":"10.1016/j.aeue.2025.155714","url":null,"abstract":"<div><div>This paper presents the development of a near-field planar wireless power transfer (WPT) system utilizing a novel partitioning approach to enhance power transfer efficiency (PTE). The design process begins with the evaluation of various coil shapes based on their inductance, leading to the selection of a square coil structure. Then, the near-field WPT system was designed by coupling two identical planar coil-based resonators separated by a <span><math><mrow><mn>25</mn><mspace></mspace><mi>mm</mi></mrow></math></span> range. In particular, three different WPT systems, namely, the conventional one-coil and the partitioned two- and four-coil systems, were realized, each with the same area of <span><math><mrow><mn>50</mn><mo>×</mo><mn>50</mn><mspace></mspace><msup><mrow><mi>mm</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math></span>. Notably, the effects of key design parameters are extensively analyzed to achieve the operating frequency at practical 433 MHz for all designed WPT systems. It was demonstrated that the proposed partitioning approach resulted in a PTE increase of 3% and 6% for the two- and four-coil WPT systems, respectively. Specifically, partitioned four-coil WPT achieved a superior PTE of 79%, exhibiting the effectiveness of the proposed technique. Furthermore, the proposed partitioned four-coil WPT system design was validated through experimental measurements. Finally, its performance was evaluated under various potential misalignments that may occur in practical scenarios.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"192 ","pages":"Article 155714"},"PeriodicalIF":3.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395727","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

Outage performance of UAV-assisted relaying MIMO-NOMA networks with SWIPT in Rician fading channels 带SWIPT的无人机辅助中继MIMO-NOMA网络在衰落信道中的中断性能

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-11 DOI: 10.1016/j.aeue.2025.155713

Harun Çağiran, Oğuz Kucur, Saliha Büyükçorak

{"title":"Outage performance of UAV-assisted relaying MIMO-NOMA networks with SWIPT in Rician fading channels","authors":"Harun Çağiran, Oğuz Kucur, Saliha Büyükçorak","doi":"10.1016/j.aeue.2025.155713","DOIUrl":"10.1016/j.aeue.2025.155713","url":null,"abstract":"<div><div>In this work, we consider unmanned aerial vehicle (UAV)-assisted simultaneous wireless information and power transfer (SWIPT)-based non-orthogonal multiple access (NOMA) system with imperfect successive interference cancellation (ipSIC) over Rician fading channels. The base station (BS) and ground users (GU) have multiple antennas applying maximal ratio transmission and maximal ratio combining diversity techniques, respectively, and communicate via a single-antenna UAV that performs amplify-and-forward relaying and power splitting (PS). Closed-form outage probability expressions are derived and validated through Monte Carlo simulations in a probabilistic path loss model. Additionally, system performance is analyzed asymptotically. Numerical results show that the optimum altitude and horizontal position of the UAV vary by urban density, and the optimum PS ratios are distinct between NOMA users. The optimum altitude for a certain urban density does not change by antenna configurations and ipSIC conditions. Adding antennas to the BS results in more performance gain than increasing antennas on the GUs. When the numbers of antennas on the BS and GUs are equal, the optimal horizontal position of the UAV is quite close to the BS; however, as the number of BS antennas increases, this position shifts closer to the GUs, a notably pronounced shift for the far user.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155713"},"PeriodicalIF":3.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419246","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 highly flexible dual-band directional coupler with arbitrary phase difference and power division ratio 具有任意相位差和功率分配比的高度灵活的双频定向耦合器

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-11 DOI: 10.1016/j.aeue.2025.155719

Yuan Cao, Xiang Chao Jin, Peng He Xu

{"title":"A highly flexible dual-band directional coupler with arbitrary phase difference and power division ratio","authors":"Yuan Cao, Xiang Chao Jin, Peng He Xu","doi":"10.1016/j.aeue.2025.155719","DOIUrl":"10.1016/j.aeue.2025.155719","url":null,"abstract":"<div><div>In this paper, a highly flexible dual-frequency directional coupler with arbitrary phase difference and power division ratio is designed. The coupler consists of two transmission lines, two C-type coupling lines and two sets of external stubs, which not only can realize arbitrary phase difference and power division ratio in dual-frequency applications, but also has the advantages of compact structure, flexibility and strong coupling. In addition, the structure is a simple and straightforward single-plane structure, which also does not require the use of any lumped element, thus greatly reducing the design cost and providing a high degree of stability and practicality. Based on the odd–even mode analysis method and the equivalent substitution method, explicit design equations for the structural parameters are given, and the effects of different parameters on the coupler performance are analyzed in detail. In order to verify the advancement of the proposed structure, prototypes of four different cases are fabricated for validation. The measured results are in good agreement with the simulation results, verifying the correctness of the theoretical analysis and the advancement of the structure.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155719"},"PeriodicalIF":3.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419247","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

Joint resource allocation of IRS-aided massive MIMO system with Quantum Water Strider Algorithm 基于量子水黾算法的irs辅助大规模MIMO系统联合资源分配

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-08 DOI: 10.1016/j.aeue.2025.155708

Wen Cui , Lin Zhao , Jianhua Cheng , Hongyuan Gao

{"title":"Joint resource allocation of IRS-aided massive MIMO system with Quantum Water Strider Algorithm","authors":"Wen Cui , Lin Zhao , Jianhua Cheng , Hongyuan Gao","doi":"10.1016/j.aeue.2025.155708","DOIUrl":"10.1016/j.aeue.2025.155708","url":null,"abstract":"<div><div>Leveraging the characteristics of intelligent reflecting surface (IRS), the data transmission rate and channel capacity of massive MIMO system are significantly improved. In this paper, a model of IRS-aided massive MIMO communication system containing a number of base station antennas, receiving terminal antennas, and an intelligent reflecting surface containing a number of passive reflecting elements is established. For IRS-aided massive MIMO system, in order to resolve channel capacity optimization problem which is a non-convex optimization problem and is difficult to effectively obtain an exact solution, we propose a novel algorithm which is called quantum-inspired water strider algorithm (QWSA). A novel quantum swarm intelligence mechanism derived from quantum theory of computation has been newly designed in this algorithm, namely the quantum water strider adjusts its quantum position not only according to global best of population but also according to the main idea of the quantum water striders within the same group. In IRS-aided massive MIMO system, through joint resource allocation of reflection matrix and transmit covariance matrix, QWSA is applied to solve the optimization problem of channel capacity. Through simulation experiments for the engineering application problem, it is verified that the algorithm significantly improves channel capacity of IRS-aided massive MIMO system.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155708"},"PeriodicalIF":3.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419248","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

Beam upwarping suppression for the horizontal omnidirectional monopole antenna in broad bandwidth by using a composite structure 利用复合结构抑制宽带水平全向单极天线的波束上凸

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-08 DOI: 10.1016/j.aeue.2025.155715

Jiemin Jing, Wenquan Cao, Hong Xue, Chuang Wang, Yangkun Zhu, Huangshu Zhou, Yixin Tong

{"title":"Beam upwarping suppression for the horizontal omnidirectional monopole antenna in broad bandwidth by using a composite structure","authors":"Jiemin Jing, Wenquan Cao, Hong Xue, Chuang Wang, Yangkun Zhu, Huangshu Zhou, Yixin Tong","doi":"10.1016/j.aeue.2025.155715","DOIUrl":"10.1016/j.aeue.2025.155715","url":null,"abstract":"<div><div>Due to the ground plane effect, the horizontal omnidirectional pattern of the monopole antenna will tilt upwards, thereby affecting the communication quality in the horizontal direction. In this paper, one composite structure (CS) composed of mushroom structures (MSs) and parasitic metal pillar elements (PMPEs) is introduced, loading uniformly around the source antenna (SA) to suppress the beam upwarping. The individual MSs can enhance the current on the ground plane, coupling more electromagnetic energy to the horizontal plane in the band outside the bandgap. Meanwhile, the PMPEs act as directors, guiding the space wave energy along the horizontal plane in a wide band. By using the two structures as one CS together, beam upwarping suppression is realized for the monopole antenna in broad bandwidth. This structure can achieve 4–25° of suppression at 410–522 MHz and 0.97–2.3 dB improvement on the horizontal plane gain, which is much better than the condition when the two structures are loaded alone. The experimental results prove the theoretical analysis. This structure can provide more stable communication for the design of high-performance devices.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"192 ","pages":"Article 155715"},"PeriodicalIF":3.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403155","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 10 mW-output power range and 88.1% efficiency reconfigurable DC-DC converter with clockless-sampling and pile-up technique for dual-source energy harvesting 采用无时钟采样和堆积技术的10mw输出功率范围和88.1%效率可重构DC-DC变换器，用于双源能量收集

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-07 DOI: 10.1016/j.aeue.2025.155700

Tong Liu, Zilin Yang, Jiale Zhu, Xiaofei Chen, Yanhan Zeng

引用次数: 0