Aeu-International Journal of Electronics and Communications最新文献

{"title":"A FinFET based single bit-line feedback cutting Low Power 11T SRAM cell for LPWAN applications","authors":"Anandita Srivastav ,&nbsp;Usha Tiwari ,&nbsp;Sushanta K. Mandal ,&nbsp;Ashish Sachdeva","doi":"10.1016/j.aeue.2025.155821","DOIUrl":"10.1016/j.aeue.2025.155821","url":null,"abstract":"<div><div>This work presents the design of an advanced SRAM bit-cell optimized for LPWAN applications, leveraging FinFET 18 nm technology. The proposed FCLP11T cell is compared with Conventional 6T (CO6T), Transmission gate-based feedback-cutting 9T (TGFC9T), Transmission gate-based read buffers 10T (TGRB10T), Dual PMOS-based read decoupled 10T (DPRD10T), and Dual Stack 10T (DS10T). It demonstrates significant reductions in read and write power dissipation by factors of 1.02<span><math><mo>×</mo></math></span>/1.91<span><math><mo>×</mo></math></span>/1.75<span><math><mo>×</mo></math></span>/1<span><math><mo>×</mo></math></span>/1.97<span><math><mo>×</mo></math></span> and 1.54<span><math><mo>×</mo></math></span>/1.90<span><math><mo>×</mo></math></span>/1.09<span><math><mo>×</mo></math></span>/2.29<span><math><mo>×</mo></math></span>/1.10<span><math><mo>×</mo></math></span>, respectively, compared to CO6T/TGRB10T/TGFC9T/DS10T/DPRD10T SRAM bit-cell design. Additionally, the FCLP11T cell reduces leakage power by 1.29<span><math><mo>×</mo></math></span>/1.15<span><math><mo>×</mo></math></span>/1.30<span><math><mo>×</mo></math></span>/1.17<span><math><mo>×</mo></math></span>/ 1.12<span><math><mo>×</mo></math></span> and improves WSNM by 1.39<span><math><mo>×</mo></math></span>/1.55<span><math><mo>×</mo></math></span>/0.99<span><math><mo>×</mo></math></span>/1.38<span><math><mo>×</mo></math></span>/1.31<span><math><mo>×</mo></math></span>, respectively, compared to CO6T/TGRB10T /TGFC9T/DS10T /DPRD10T SRAM bit-cell design. The RSNM and HSNM are also enhanced by 2.12<span><math><mo>×</mo></math></span>/ 1.44<span><math><mo>×</mo></math></span>/ 1.55<span><math><mo>×</mo></math></span>/1.73<span><math><mo>×</mo></math></span>/1.01<span><math><mo>×</mo></math></span> and 1.03<span><math><mo>×</mo></math></span>/1.02<span><math><mo>×</mo></math></span>/1.03<span><math><mo>×</mo></math></span>/1.02<span><math><mo>×</mo></math></span>/ 1.01<span><math><mo>×</mo></math></span>, respectively, compared to CO6T/TGRB10T /TGFC9T/DS10T/DPRD10T SRAM bit-cell design. . The proposed cell has been tested for Process-Voltage-Temperature variations, highlighting its robust performance and suitability for LPWAN applications.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155821"},"PeriodicalIF":3.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923543","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}

{"title":"Electronically controlled square/triangular wave generator with amplitude adjustability and its application in light intensity measurement using commercial-off-the-shelf current feedback amplifiers","authors":"Pawich Choykhuntod ,&nbsp;Roman Sotner ,&nbsp;Phamorn Silapan ,&nbsp;Rapeepan Kaewon ,&nbsp;Winai Jaikla","doi":"10.1016/j.aeue.2025.155840","DOIUrl":"10.1016/j.aeue.2025.155840","url":null,"abstract":"<div><div>This study presents a square and triangular waveform generator using two commercial-off-the-shelf current feedback amplifiers with DC gain control, LT1228. The frequency of the square and triangular waveforms can be electronically and independently adjusted with the bias current. With this advantage feature, the proposed generator can be easily modified to generate a sawtooth waveform and electronically adjust the duty cycle of square waves. Additionally, PWM signals can also be generated from the proposed circuit. The amplitude of both square and triangular waveforms is adjustable without affecting the frequency, and the output nodes have low impedance. The circuit’s performance is validated through practical implementation and testing, showing excellent agreement with theoretical analysis. The measured linear and electronic adjustment of frequency spanned from 4.83 kHz to 436.2 kHz. Furthermore, the circuit can be applied as a low-cost light intensity detection sensor.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155840"},"PeriodicalIF":3.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929100","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}

{"title":"Symmetric coexistence, complete control, circuit implementation, and synchronization of a memristor-coupled jerk chaotic system","authors":"Yuqi Wei,&nbsp;Xinyang Wang,&nbsp;Tingkai Zhao,&nbsp;Baoxiang Du","doi":"10.1016/j.aeue.2025.155820","DOIUrl":"10.1016/j.aeue.2025.155820","url":null,"abstract":"<div><div>Memristors, with their distinctive nonlinearity, significantly enrich system dynamics by introducing high-dimensional complexity. This study proposes a novel four-dimensional (4D) center-symmetric chaotic system synthesized by integrating a non-chaotic Jerk system with a single memristor. We rigorously investigate the memristor-induced chaotic mechanisms and develop a complete control strategy for amplitude modulation and offset regulation, enabling precise manipulation of dynamical states. Initial condition variations induce a symmetry-breaking bifurcation, progressively splitting the original attractor into two symmetrically paired coexisting attractors. The complex chaotic dynamics are validated through both analog and digital circuit implementations, and the system is further applied to chaotic synchronization, broadening its potential applications in secure communication.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155820"},"PeriodicalIF":3.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143911968","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}

{"title":"Emulation of versatile tunable universal mem-elements design and its application","authors":"Niranjan Raj ,&nbsp;Anshul Awasthi ,&nbsp;Sagar ,&nbsp;Parvatam Deepthi ,&nbsp;Surya Shankar Dan","doi":"10.1016/j.aeue.2025.155838","DOIUrl":"10.1016/j.aeue.2025.155838","url":null,"abstract":"<div><div>This study proposes the use of an active building block Operational Transconductance Amplifier (OTA), three transconductor elements, and a few passive components to design an electronically tunable universal mem-elements emulator circuit that includes memristor (MR), memcapacitor (MC), and meminductor (MI). Mem element’s physical realization is still an open challenge that drives the creation of new designs. The universal circuit requires one floating resistor and two grounded capacitors as passive components. The topology of mem-elements has been implemented using a switch without altering the circuit structure. The workability of memristor and meminductor don’t require any resistor while memcapacitor requires the use of one resistor. The presented design establishes a simple mathematical relationship and verifies Memristive system fingerprint traits such as pinched hysteresis loop (PHL). The functionality of the suggested universal mem-elements architecture is confirmed by the PSpice simulation results for implementing all three characteristics in the 0.18 μm CMOS technology node. Implementation using commercial ICs further validates the circuit’s performance beyond its CMOS-based architecture. The functioning of the suggested architecture is demonstrated by application various examples. The MR, MC, and MI emulation circuits have been shown to consume 7.4 mW, 11.2 mW, and 10.4 mW of power, respectively</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155838"},"PeriodicalIF":3.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906830","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}

{"title":"High gain dielectric resonator filtering antenna for 6G applications","authors":"Pravesh Pal ,&nbsp;Dilip Kumar Choudhary ,&nbsp;Santosh Kumar Mahto","doi":"10.1016/j.aeue.2025.155835","DOIUrl":"10.1016/j.aeue.2025.155835","url":null,"abstract":"<div><div>This work examines a hemispherical dielectric resonator filtering antenna with broad bandwidth, low profile and improved gain. It is designed with a rectangular slot on the bottom ground plane, below which dielectric laminated and fed by a fifty-ohm microstrip feed line. The proposed structure offers wider bandwidth and better gain because of the higher order mode of hemispherical dielectric resonator. Further a filtering resonator is placed in the feedline to provide two radiation nulls. A complete analysis of the filtering antenna has been thoroughly examined. The design offers a 10 dB impedance bandwidth of 10.7 % ranging from 7.1 to 7.9 GHz having a centre frequency of 7.5 GHz. It offers a reflection coefficient of more than 30 dB at the centre frequency with a flat gain of 7.4 dB in the working band. The value of simulated radiation efficiency is more than 90 % in the working band. After fabricating the suggested structure, the outcomes are contrasted with the values from the simulation. The proposed filtering antenna may fit the 6G frequency band well.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155835"},"PeriodicalIF":3.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906829","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}

{"title":"Realization of filtering leaky-wave antenna in Goubau-line","authors":"Rajni Kant ,&nbsp;Chandra Shekhar Prasad ,&nbsp;Animesh Biswas ,&nbsp;M.J. Akhthar","doi":"10.1016/j.aeue.2025.155834","DOIUrl":"10.1016/j.aeue.2025.155834","url":null,"abstract":"<div><div>A Goubau-line leaky-wave antenna (LWA) having filtering property is introduced in this work. The novelty of the design is integration of filtering function in a planar Goubau-line LWA. This integration leads to a bandpass behavior of the antenna. The leaky-wave radiation is generated by incorporating modified symmetrical periodic perturbation along the single conductor transmission line. This modified perturbation reduces the conductor loss further, resulting in a maximum antenna gain of 11.5 dBi. Filtering function is introduced in this planar transmission line by a ring resonator providing the filtering nulls at 5.5 GHz and 11 GHz and the operating bandwidth of 35 % (7 GHz–10 GHz) with 38° backward beam scanning. The proposed antenna demonstrates good radiation performance with filtering properties.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155834"},"PeriodicalIF":3.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890573","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}

{"title":"Optimum Chebyshev low-pass filter with an arbitrary number of real-frequency transmission zero pairs","authors":"Nikola Stojanović ,&nbsp;Ivan Krstić ,&nbsp;Negovan Stamenković","doi":"10.1016/j.aeue.2025.155813","DOIUrl":"10.1016/j.aeue.2025.155813","url":null,"abstract":"<div><div>The paper examines the effect of introducing distinct pairs of finite transmission zeros into the characteristic function of an optimum Chebyshev all-pole filter. To ensure the equiripple stopband, the transmission zero locations are determined using the Newton–Raphson method. A novel approach is proposed to transform the characteristic function from its transcendental into a rational polynomial form. Notably, the derivation process is straightforward, eliminating the need for recursion or optimization. These filters preserve the same magnitude response in the passband, while achieving enhanced stopband performance compared to their equiripple all-pole counterparts. To illustrate the effectiveness of this method, an approximation procedure is presented for a 7th-degree optimum Chebyshev low-pass filter with one, two, or three distinct simple transmission zeros, achieving a minimum stopband attenuation of 50 dB. A comparative analysis demonstrates the enhanced performance of the proposed filters.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155813"},"PeriodicalIF":3.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890574","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}

{"title":"Application of an innovative FPGA-optimized model on pancreatic β-cells: Validation via Lyapunov analysis and equilibrium stability","authors":"Gilda Ghanbarpour ,&nbsp;Muhammad Akmal Chaudhary ,&nbsp;Maher Assaad ,&nbsp;Milad Ghanbarpour","doi":"10.1016/j.aeue.2025.155816","DOIUrl":"10.1016/j.aeue.2025.155816","url":null,"abstract":"<div><div>Presenting an ideal hardware model capable of mimicking behavior of biological cells and neurons holds great significance in neuromorphic engineering. This research introduces a novel and unique approach to digitally implementing a biological cell model with the goal of reducing hardware requirements and enhancing processing speed while maintaining signal accuracy. The method outlined focuses on minimizing the number of nonlinear terms in the original model, making it well-suited for digital implementation. Specifically, this approach is applied to the pancreatic <span><math><mi>β</mi></math></span> cell model in this study. Both software simulation and hardware implementation results validate the effectiveness of the proposed method in reproducing the signal and behavior of the original <span><math><mi>β</mi></math></span> cell model by decreasing the number of nonlinear terms without discarding any equations from the initial model. By consolidating them into a single form, this method reduces the number of non-linear terms to one through a common variable, making it highly suitable for digital implementation. To validate the mathematical simulation findings, the proposed model was synthesized and implemented on the Zynq XC7Z010 (3CLG400) reconfigurable board (FPGA). The results demonstrate the ability to more efficiently reproduce biological behavior at significantly lower execution costs. Implementing this technique on the Zynq board can enhance the speed of the suggested model by up to 2.187 times compared to the original model, while also achieving a 34.91% decrease in energy (power) usage.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155816"},"PeriodicalIF":3.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882118","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}

{"title":"A cylindrical tightly coupled dipole array (TCDA) with circular polarization","authors":"Liangliang Zhao,&nbsp;Hailiang Zhu,&nbsp;Huiling Zhao","doi":"10.1016/j.aeue.2025.155819","DOIUrl":"10.1016/j.aeue.2025.155819","url":null,"abstract":"<div><div>Different from the regular TCDA, which maintains the characteristics of TCDA without bending the element, this paper first presents a novel cylindrical TCDA, of which the elements are connected by joinable design along the circumferential direction. By utilizing the cylindrical design and sequentially rotated feed technique, the axial ratio (AR) of the proposed TCDA over the whole band is less than 3 dB, showing a great circular polarization (CP) characteristic. Meanwhile, the proposed TCDA remains an ultrawideband property with 10.3:1 bandwidth (2.6–26.7 GHz) and an active VSWR &lt; 3, within a wide-scanning range of ± 70°. Moreover, an 18-element cylindrical TCDA prototype is fabricated and measured, validating our design. Good agreement is obtained between the measured and simulated radiation patterns. Due to the distinctive features of cylindrical design, CP, ultra-wide bandwidth, and wide-angle scanning, the proposed TCDA expands the application fields operated in microwave to millimeter-wave.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155819"},"PeriodicalIF":3.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898602","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}

{"title":"Deep-SOR detection for massive MIMO systems","authors":"Hoang-Yang Lu ,&nbsp;S. Pourmohammad Azizi ,&nbsp;Shyi-Chyi Cheng","doi":"10.1016/j.aeue.2025.155815","DOIUrl":"10.1016/j.aeue.2025.155815","url":null,"abstract":"<div><div>In massive MIMO systems, particularly in highly loaded scenarios where the number of transmit antennas approaches that of receive antennas, symbol detection faces significant challenges, including increased computational complexity and degraded performance. To address these issues, in the paper we propose a deep learning (DL)-assisted successive over-relaxation (SOR) detector. This detector utilizes two relaxation vectors to enhance performance, which are determined through DL training. Additionally, we introduce a convergence theorem and conduct simulations to validate their determination. Finally, simulation and complexity analysis results demonstrate that the proposed detector achieves superior performance with a moderate computational cost, especially in highly loaded scenarios.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"197 ","pages":"Article 155815"},"PeriodicalIF":3.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882119","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}