Aeu-International Journal of Electronics and Communications最新文献_第7页

Pico-ampere resolution current measurement circuit using Gm-C filter sigma-delta modulator for low-power nanopore DNA sequencing 使用 Gm-C 滤波器 sigma-delta 调制器的皮安培分辨率电流测量电路，用于低功耗纳米孔 DNA 测序

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-19 DOI: 10.1016/j.aeue.2024.155508

Pegah Tahani , Mehdi Habibi , Sebastian Magierowski

{"title":"Pico-ampere resolution current measurement circuit using Gm-C filter sigma-delta modulator for low-power nanopore DNA sequencing","authors":"Pegah Tahani , Mehdi Habibi , Sebastian Magierowski","doi":"10.1016/j.aeue.2024.155508","DOIUrl":"10.1016/j.aeue.2024.155508","url":null,"abstract":"<div><div>New generation DNA sequencers use an array of electrochemical cells equipped with nanopores, which produce pico-ampere current levels. Due to the large number of channels, low current levels and bandwidths in the order of a few kHz, in the design of these readout circuits, 2D arrays of in-channel, low noise and low power analog to digital converters are preferred. Previously many different sigma-delta modulators have been presented to convert the nanopore current signal into a digital code. Conventionally, the opamps required in these converters will eventually increase the power dissipation of each channel. In this paper a novel Gm-C filter based second order sigma-delta converter is proposed. In the given design, rather than relying on multiple opamps to achieve the necessary gain and noise performance, only a 4 transistor Gm block is used. Evaluations show that while the input referred noise remains close to previous methods, the power dissipation is considerably reduced. A prototype is also implemented to show the effectiveness of the approach. In a 180-nm design, an ENOB of 12.16 bits, RMS input referred noise of 0.2 pA at 10 kHz bandwidth and power dissipation of 8.27 μW is obtained per channel.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155508"},"PeriodicalIF":3.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316096","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

Investigation and analysis of design techniques for ultra-wideband CMOS on-chip dipole antennas for 6G sub-THz applications 针对 6G sub-THz 应用的超宽带 CMOS 片上偶极子天线设计技术的研究与分析

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-18 DOI: 10.1016/j.aeue.2024.155532

Samiyalu Usurupati , Aparna V. , Immanuel Raja , Chinmoy Saha , Yahia M.M. Antar

{"title":"Investigation and analysis of design techniques for ultra-wideband CMOS on-chip dipole antennas for 6G sub-THz applications","authors":"Samiyalu Usurupati , Aparna V. , Immanuel Raja , Chinmoy Saha , Yahia M.M. Antar","doi":"10.1016/j.aeue.2024.155532","DOIUrl":"10.1016/j.aeue.2024.155532","url":null,"abstract":"<div><p>This article explores different techniques to improve the impedance bandwidth of on-chip dipole antennas in the sub-THz frequency range. Increasing the area of the dipole antenna has shown considerable improvement in bandwidth. However, this violates the design rule checks (DRC) of the foundry. Various topologies, such as squared-slotted dipole, meandered-slotted dipole, and straight-slotted dipole antennas, are introduced and implemented to increase the width of the on-chip antennas and thus the impedance bandwidth while meeting the DRC rules. All three topologies show better performance in terms of providing improved bandwidth. The straight-slotted technique is adopted as it offers less complexity and flexibility. The behavior of the impedances for different widths implemented by the straight-slotted topology has been analyzed in detail. A 6-strip straight-slotted dipole antenna results in an ultra-wide impedance bandwidth ranging from 76–262 GHz with a fractional bandwidth of 110% and a gain of −0.6 dBi at 159 GHz, while occupying a small silicon area of <span><math><mrow><mn>567</mn><mspace></mspace><mi>μ</mi><mi>m</mi><mo>×</mo><mn>112</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>. To the best of the authors’ knowledge, this is the highest fractional bandwidth that is reported to date at these frequencies.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155532"},"PeriodicalIF":3.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142270583","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 exponential variation based PSO for analog circuit sizing in constrained environment 基于指数变化的 PSO，适用于受限环境中的模拟电路选型

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-17 DOI: 10.1016/j.aeue.2024.155531

Shreeharsha K.G. , Siddharth R.K. , Charudatta G Korde , Vasantha M.H. , Nithin Kumar Y.B.

{"title":"An exponential variation based PSO for analog circuit sizing in constrained environment","authors":"Shreeharsha K.G. , Siddharth R.K. , Charudatta G Korde , Vasantha M.H. , Nithin Kumar Y.B.","doi":"10.1016/j.aeue.2024.155531","DOIUrl":"10.1016/j.aeue.2024.155531","url":null,"abstract":"<div><p>This work presents an Exponential Variation based Particle Swarm Optimization (EV-PSO) algorithm to improve the convergence rate and find an optimal solution to analog circuit optimization problems in a constrained-driven environment. Existing evolutionary algorithms have a lower convergence rate leading to higher design time. This work introduces two novel parameters, <span><math><msub><mrow><mi>ζ</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span> and <span><math><msub><mrow><mi>ζ</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>, into the velocity update equation. These parameters dynamically vary with the number of iterations. The algorithm was implemented on the Python platform. The results have shown that, in comparison to the considered existing methods, the exponential variation of the parameters <span><math><msub><mrow><mi>ζ</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span> and <span><math><msub><mrow><mi>ζ</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> in the proposed algorithms have a larger rate of convergence. The proposed EV-PSO has a convergence rate of 27 iterations, which is 57.8%, 65.38%, and 59.1% better than the conventional PSO, differential evolution (DE) and genetic algorithm (GA) respectively. The typical design obtained from the optimal solution is verified through the simulation using 45-nm CMOS technology. The optimal solution presented in this work meets the desired input specifications within the specified constrained environment.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155531"},"PeriodicalIF":3.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1434841124004175/pdfft?md5=ae96eacee54d840f33a6601669a1c3f4&pid=1-s2.0-S1434841124004175-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243136","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

High-Performance monolithic ceramic waveguide filter with isosceles Right-Angled triangular resonator for base station applications 带等腰直角三角形谐振器的高性能单片陶瓷波导滤波器，适用于基站应用

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-13 DOI: 10.1016/j.aeue.2024.155516

Zhengwei Huang , Yulong Guo , Chun Li , Ling Jiang , Yong Cheng , Xingye Fan , Shaoting Li

{"title":"High-Performance monolithic ceramic waveguide filter with isosceles Right-Angled triangular resonator for base station applications","authors":"Zhengwei Huang , Yulong Guo , Chun Li , Ling Jiang , Yong Cheng , Xingye Fan , Shaoting Li","doi":"10.1016/j.aeue.2024.155516","DOIUrl":"10.1016/j.aeue.2024.155516","url":null,"abstract":"<div><p>This paper presents a high-performance integrated monolithic ceramic dielectric waveguide (DW) filter featuring isosceles right-angled triangular (IRAT) resonators. The fabrication process of the filter involves embedding a specific number of blind holes (BHs) or through holes/slots (THs/TSs) in a hexagonal ceramic dielectric block, fully metallizing the dielectric surface, and forming a monolithic ceramic DW filter. To achieve magnetic coupling, four THs and a BH are introduced in the oblique edges of two IRAT resonators; alternatively, a TS and BH are introduced in their right-angled edges. Electrical coupling is realized through a deep BH on the right-angle side of the resonators. Two non-adjacent resonators initiate weak cross-coupling by cascading a T-shaped rectangular TS, shallow BHs, and deep BH, creating two transmission zeros (TZs) outside the band. The filter was fabricated to ensure theoretical correctness and process reliability. The measured results show an insertion loss between 0.5 – 1 dB and a return loss greater than 18 dB at a bandwidth of 3.4 – 3.6 GHz. Two steep out-of-band TZs occur at 3.26 GHz and 3.72 GHz, aligning with simulation results. Therefore, the filter not only exhibits excellent performance but is also convenient for mass production and manufacturing, offering significant potential for future applications in 5G / 6G communication base stations.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155516"},"PeriodicalIF":3.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243237","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 inverted F-shaped slotted broadband metasurface-based circularly polarized patch antenna for 5G application 一种用于 5G 应用的倒 F 型开槽宽带元表面圆极化贴片天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-12 DOI: 10.1016/j.aeue.2024.155507

Deepak Ram, Amit Kumar Singh, Somak Bhattacharyya

{"title":"An inverted F-shaped slotted broadband metasurface-based circularly polarized patch antenna for 5G application","authors":"Deepak Ram, Amit Kumar Singh, Somak Bhattacharyya","doi":"10.1016/j.aeue.2024.155507","DOIUrl":"10.1016/j.aeue.2024.155507","url":null,"abstract":"<div><p>This paper presents an inverted F-shaped slotted broadband metasurface (MS)-based circularly polarized (CP) microstrip patch antenna. The host antenna comprises a truncated corner square patch with an inverted F-shaped slot, positioned on a 1.6 mm thick FR-4 substrate backed by ground plane. Concurrently, the MS layer is composed of a 4 × 4 square ring array, constructed on a separate 1.6 mm thick FR-4 substrate with net compact dimensions 0.54λ<sub>o</sub> × 0.54λ<sub>o</sub> × 0.027λ<sub>o</sub> at 5.13 GHz, serving as a superstrate layer. The proposed antenna exhibits impressive performance, including a −10-dB impedance bandwidth from 4.40 GHz to 7.38 GHz as well as a 3-dB axial ratio (AR) bandwidth from 4.74 GHz to 5.52 GHz. Furthermore, at 5.13 GHz, it achieves a notable maximum radiation efficiency and realized gain of 85 % and 6.95 dBic respectively. Moreover, polarization of the antenna is observed as left-handed circularly polarized (LHCP). To validate the impedance response, the antenna’s equivalent circuit model has been sequentially developed, followed by the fabrication of a prototype. The measured results closely resemble with the simulated responses, indicating strong consistency between theory and experimental results. With its overall compact dimension of 0.65λ<sub>o</sub> × 0.65λ<sub>o</sub> × 0.027λ<sub>o</sub> at 5.13 GHz, the proposed CP antenna is well-suited for 5G application.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155507"},"PeriodicalIF":3.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230586","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 Doherty power amplifier with power back-off extension based on harmonic tuning and output combining network optimization 基于谐波调谐和输出组合网络优化设计具有功率后置扩展功能的 Doherty 功率放大器

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-12 DOI: 10.1016/j.aeue.2024.155528

Heng Zhang , Jing Xia , Zhongpeng Ni , Xiaoshuai Ge , Wa Kong , Wence Zhang , Chao Yu , Xiao-Wei Zhu

{"title":"Design of Doherty power amplifier with power back-off extension based on harmonic tuning and output combining network optimization","authors":"Heng Zhang , Jing Xia , Zhongpeng Ni , Xiaoshuai Ge , Wa Kong , Wence Zhang , Chao Yu , Xiao-Wei Zhu","doi":"10.1016/j.aeue.2024.155528","DOIUrl":"10.1016/j.aeue.2024.155528","url":null,"abstract":"<div><p>This paper proposes a Doherty power amplifier (DPA) design method based on harmonic tuning and output combining network (OCN) optimization to extend the power back-off (PBO) range. Firstly, based on the optimal harmonic load impedance, a harmonic tuning optimization method is used to design the harmonic tuning network of the amplifiers, effectively improving the efficiency at saturation and PBO. Secondly, the fundamental output matching network and the post-matching network are considered as an OCN. The <em>S</em>-parameters of the OCN are calculated and utilized in the DPA design. To further expand the PBO range, the carrier load impedance at PBO is determined by considering the relationship between PBO range and reflection coefficient. Finally, a multi-objective evolutionary algorithm combined with the theory of solution set is used to optimize the OCN design, simplifying the design process of the output matching network. For verification, a high-efficiency DPA operating at 1.68 GHz with a large PBO range of 9.5 dB is designed and measured. Results indicate that the proposed DPA achieves a saturated output power greater than 44 dBm, with a peak efficiency of up to 75.2%. The efficiencies are 68.5% and 61.0% at 6 and 9.5 dB back-off powers, respectively.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155528"},"PeriodicalIF":3.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142232220","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

Efficient resource management in direct and indirect transmission in V2X communications V2X 通信中直接和间接传输的高效资源管理

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-11 DOI: 10.1016/j.aeue.2024.155530

Irene Keramidi , Dimitris Uzunidis , Ioannis Moscholios , Konstantinos Yiannopoulos , Nikos Sagias , Panagiotis Sarigiannidis

引用次数: 0

A novel asymmetric antipodal Vivaldi MIMO antenna 新型非对称反向维瓦尔第多输入多输出天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-11 DOI: 10.1016/j.aeue.2024.155529

Kayhan Çelik

引用次数: 0

A reconfigurable ultra-wideband high-purity multimode terahertz OAM antenna array based on graphene and vanadium dioxide 基于石墨烯和二氧化钒的可重构超宽带高纯度多模太赫兹 OAM 天线阵列

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-07 DOI: 10.1016/j.aeue.2024.155514

Ruimin Zhang , Yahui Hou , Shuhui Yang , Kaili Huo , Zihao Fu , Jingjing Liang , Li Zhang , Bin Li , Chenyin Yu , Jiajie Chu , Yimeng Wang , An Yan , Fan Yu

{"title":"A reconfigurable ultra-wideband high-purity multimode terahertz OAM antenna array based on graphene and vanadium dioxide","authors":"Ruimin Zhang , Yahui Hou , Shuhui Yang , Kaili Huo , Zihao Fu , Jingjing Liang , Li Zhang , Bin Li , Chenyin Yu , Jiajie Chu , Yimeng Wang , An Yan , Fan Yu","doi":"10.1016/j.aeue.2024.155514","DOIUrl":"10.1016/j.aeue.2024.155514","url":null,"abstract":"<div><p>A reconfigurable ultra-wideband multimode terahertz OAM antenna array based on graphene and vanadium dioxide (VO<sub>2</sub>) is presented in this paper. The uniform circular array (UCA) composed of circularly polarized (CP) antennas, which include a ring radiation patch, a parasitic patch, a perovskite substrate and an irregular VO<sub>2</sub> ground plane. The radiation patch is covered with a layer of graphene, by changing the chemical potential of graphene, the working bandwidth and axial ratio bandwidth of the antenna can be changed. By changing the phase state of VO<sub>2</sub> (metal state / insulation state) to control the working state of the antenna. The impedance bandwidth (IBW) of the CP antenna proposed is 115.09% (1.73–6.42 THz), the axial ratio bandwidth (ARBW) is 43.97% (2.36–3.69 THz). Using the CP antenna unit can simplify the complex feed network, and only feeding the equal amplitude and equal phase excitation can realize the vortex wave. Changing the number and rotation angle of the antenna unit can realize multimode vortex waves with the <em>l</em>= 0, ±1, ±2, ±3, the purity is approximately 1, respectively. The proposed UCA has excellent application prospect in the 6G communication.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155514"},"PeriodicalIF":3.0,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173776","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

Metamaterial-inspired UWB MIMO antenna with polarization diversity 具有极化分集功能的超材料启发式 UWB MIMO 天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-07 DOI: 10.1016/j.aeue.2024.155518

Prashant Chaudhary , Ashwani Kumar , Ravi Kumar Arya , Maifuz Ali

引用次数: 0