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

A Ku-band mechanically tunable bandstop filter in groove gap waveguide 槽隙波导中ku波段机械可调谐带阻滤波器

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-11-25 DOI: 10.1016/j.aeue.2025.156153

Ali Sabbaghi Saber, Rasoul Moslemi, Davood Zarifi

引用次数: 0

A low loss tri-band negative group delay circuit with resistors 带电阻的低损耗三带负群延迟电路

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-11-25 DOI: 10.1016/j.aeue.2025.156144

Yuwei Meng, Zhenping Lan

引用次数: 0

A multi-harmonic class-D FSK power and data transmitter with enhanced load power delivery and high data rate to carrier frequency ratio for biomedical implants 一种用于生物医学植入物的多谐波d类FSK功率和数据传输器，具有增强的负载功率传输和高数据速率与载频比

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.2025.156161

Akbar Asgharzadeh Bonab , Khashayar Dehghan , Jalil Mazloum

{"title":"A multi-harmonic class-D FSK power and data transmitter with enhanced load power delivery and high data rate to carrier frequency ratio for biomedical implants","authors":"Akbar Asgharzadeh Bonab , Khashayar Dehghan , Jalil Mazloum","doi":"10.1016/j.aeue.2025.156161","DOIUrl":"10.1016/j.aeue.2025.156161","url":null,"abstract":"<div><div>This paper presents a novel wireless power transfer and data telemetry circuit for biomedical implants that enhances both data rate and power delivery to the load. The proposed system employs a multi-coil, single-carrier frequency shift keying (FSK) transmitter architecture, where power and data are simultaneously transmitted via three magnetically coupled resonant links. These links are excited by a class-D amplifier operating at the first, third, and ninth harmonics of a base frequency. Bit encoding is performed by switching between two resonant modes: when the data bit is “0,” the system transmits at the base frequency f<sub>0</sub>; when the bit is “1,” it switches to 3f<sub>0</sub>. This design leverages first, third, and ninth harmonic resonance to improve power delivered to the load and simplify modulation circuitry. The system has an ability to achieve a data rate equal to f<sub>0</sub>, resulting in a data-rate-to-f<sub>0</sub> ratio of 100 %. A proof-of-concept prototype was implemented on a printed circuit board and evaluated at operating frequencies of 298 kHz and 894 kHz. The transmitter delivers 1.1 W to the load with a power transfer efficiency of approximately 42 %, achieving a data rate of 0.298 Mbps and a bit error rate (BER) <span><math><mrow><mn>5.33</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>-</mo><mn>6</mn></mrow></msup></mrow></math></span>.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156161"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684710","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

Spiking neural network with 1T-1R RRAM synapses and CMOS LIF neurons for in-situ learning and pattern recognition 基于1T-1R RRAM突触和CMOS LIF神经元的脉冲神经网络用于原位学习和模式识别

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-11-24 DOI: 10.1016/j.aeue.2025.156145

Nivetha T. , Bindu B. , Noor Ain Kamsani

{"title":"Spiking neural network with 1T-1R RRAM synapses and CMOS LIF neurons for in-situ learning and pattern recognition","authors":"Nivetha T. , Bindu B. , Noor Ain Kamsani","doi":"10.1016/j.aeue.2025.156145","DOIUrl":"10.1016/j.aeue.2025.156145","url":null,"abstract":"<div><div>The neuromorphic computation has gained attention over traditional computing techniques due to its low power consumption, real-time processing and adaptability. The spiking neural networks (SNN) are event-based which process information as spikes to provide high energy efficiency and fast computation. In this article, a novel SNN with CMOS neuron and resistive random access memory (RRAM) synapses is implemented for pattern recognition. The RRAM synapses exhibit synaptic plasticity suitable for in-memory computations. A computationally efficient CMOS based leaky integrate and fire (LIF) neuron model is implemented to handle the data-driven applications effectively. The SNN contains the forward and feedback mode operation. In the forward mode, the input pre-spikes with ON-bit and OFF-bit frequencies corresponding to the binary pixel intensities of the image are applied to the RRAM synaptic array. The CMOS LIF neuron integrate these spikes from synapses and produce the post-spikes. In the feedback mode, these post-spikes are given to the sense line and the synaptic weights get modified using spike time-dependent plasticity (STDP) learning mechanism. The proposed SNN circuit is used for training and recognizing the alphabets/digits in <span><math><mrow><mn>500</mn><mspace></mspace><mi>μ</mi><mi>s</mi></mrow></math></span> using 25 1T-1R RRAM synapses and a single output CMOS LIF neuron.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156145"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617912","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

Wideband RCS reduction of circularly polarized flexible antenna using polarization conversion metasurface 利用极化转换超表面降低圆极化柔性天线宽带RCS

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.2026.156206

Zheng You, Jinqi Zhang, Xuyin Niu, Guangqian Wu, Shaofeng Wang

{"title":"Wideband RCS reduction of circularly polarized flexible antenna using polarization conversion metasurface","authors":"Zheng You, Jinqi Zhang, Xuyin Niu, Guangqian Wu, Shaofeng Wang","doi":"10.1016/j.aeue.2026.156206","DOIUrl":"10.1016/j.aeue.2026.156206","url":null,"abstract":"<div><div>A flexible wideband circularly polarized (CP) antenna with low radar cross section (RCS) is proposed. It employs a double-layer polarization conversion metasurface (PCM) integrated with a phase control surface (PCS). The metasurface units are orthogonally arranged to form a checkerboard patterned metasurface, which is integrated with a slot antenna array fed by a sequential rotating power divider network with a 90° phase difference. The feed network is fabricated on the flexible printed circuit (FPC). The CP antenna achieves a 3 dB axial ratio (AR) bandwidth from 6.72 GHz to 9.06 GHz and provides over 10 dB radar cross section (RCS) reduction across 5.82 GHz to 19.85 GHz. Under central bending angle from 0° to 90° conditions, the proposed antenna maintains stable RCS reduction and radiation performance, while also suppressing RCS for oblique incident electromagnetic waves within elevation angles from 0° to 45°. The designed metasurface antenna is suitable for radar detection systems and wearable devices.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"206 ","pages":"Article 156206"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145927446","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

Low-power, high-speed ternary adder using multi-threshold GNR transistors for efficient digital computing architectures 采用多阈值GNR晶体管的低功耗、高速三元加法器，用于高效的数字计算架构

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-11-14 DOI: 10.1016/j.aeue.2025.156139

Kuruva Mahesh, Syed Shameem

{"title":"Low-power, high-speed ternary adder using multi-threshold GNR transistors for efficient digital computing architectures","authors":"Kuruva Mahesh, Syed Shameem","doi":"10.1016/j.aeue.2025.156139","DOIUrl":"10.1016/j.aeue.2025.156139","url":null,"abstract":"<div><div>The demand for efficient adder architectures is rapidly increasing due to the pervasive use of artificial intelligence, cryptography, and other computationally intensive applications. This paper presents a novel low-power, high-speed ternary full adder (TFA) design based on graphene nanoribbon field-effect transistors (GNRFETs). By exploiting the multi-threshold capability of GNRFET devices, the proposed TFA leverages unary operators, transmission gates, and pass-transistor logic to minimize device count while achieving superior performance. The design avoids voltage-degraded paths, thereby guaranteeing full-swing outputs. Robustness is verified through process, voltage, and temperature (PVT) analysis as well as Monte Carlo simulations, confirming stable operation under variability. Comparative evaluation with state-of-the-art GNRFET-based TFAs demonstrates improvements of 6.3 % in delay, 14.6 % in power consumption, and 34.7 % in energy efficiency, along with a 26.1 % reduction in transistor count. All simulations were performed using Synopsys HSPICE with a SPICE-compatible 32-nm GNRFET technology model. Furthermore, when the proposed TFA was applied to the image-processing task as a real-world demonstration, it not only delivered superior image fidelity but also achieved the highest figure of merit (FOM).</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156139"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145571867","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 partitioned iterative method for bistatic scattering analysis of PEC cavities with internal–external incident field decomposition 内外入射场分解的PEC腔双稳态散射分析的分割迭代方法

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.2026.156207

Da Huang, Ming Bai

引用次数: 0

Automated design of irregularly shaped microstrip bandpass filters with 2-bit fragment-type structure 2位碎片型结构不规则微带带通滤波器的自动化设计

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2026-01-05 DOI: 10.1016/j.aeue.2026.156197

Gongda Hu , Yukun Fang , Dawei Ding

引用次数: 0

A bandwidth controllable dual-band filter integrating effective surface plasmon polaritons and spoof surface plasmon polaritons 一种集成有效表面等离子激元和欺骗表面等离子激元的带宽可控双带滤波器

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-12-29 DOI: 10.1016/j.aeue.2025.156191

Baoping Ren , Pingping Zhang , Shengli Long , Junhui Qin , Wenlong Zhang , Jun Li , Xuehui Guan

{"title":"A bandwidth controllable dual-band filter integrating effective surface plasmon polaritons and spoof surface plasmon polaritons","authors":"Baoping Ren , Pingping Zhang , Shengli Long , Junhui Qin , Wenlong Zhang , Jun Li , Xuehui Guan","doi":"10.1016/j.aeue.2025.156191","DOIUrl":"10.1016/j.aeue.2025.156191","url":null,"abstract":"<div><div>In this paper, a new dual-band filter based on effective surface plasmon polaritons (ESPPs) and spoof surface plasmon polaritons (SSPPs) is designed. Firstly, a two-layer half-mode substrate integrated waveguide (HMSIW) with half size of SIW is proposed to excite an ESPPs mode, which is used to constitute the lower passband of the dual-band filter. Subsequently, periodic grooves are etched on the top metal layer of the ESPPs waveguide to introduce SSPPs, which facilitates the generation of the upper passband. In contrast to the manner of accomplishing dual-band filtering response by harnessing two ESPPs modes propagating at different interfaces, the design method proposed in this paper allows for simplification of the configuration. Moreover, a high degree of independence is demonstrated in the manipulation of the two passbands. Ultimately, a filter with two passbands centered at 2.18 GHz and 3.43 GHz, and corresponding fractional bandwidth of 13.8% and 37.7% is designed. With the simulated maximum insertion loss of 1.3 dB and return loss better than 10.9 dB within two passbands, the filter possesses good transmission performance. In addition, the rejection level of the stopband between two passbands reaches up to −39 dB, exhibiting favorable isolation. For demonstration, a prototype of the dual-band filter is fabricated and measured. The measured results agree well with the simulations, validating the design method and structure.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"206 ","pages":"Article 156191"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145885912","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

Wideband slot antenna with controllable absorptive sidebands based on multi-mode absorptive resonators 基于多模吸收谐振器的可控吸收边带宽带缝隙天线

IF 3.2 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2026-02-01 Epub Date: 2025-11-19 DOI: 10.1016/j.aeue.2025.156142

Jiaqian Cui, Lei Zhu

{"title":"Wideband slot antenna with controllable absorptive sidebands based on multi-mode absorptive resonators","authors":"Jiaqian Cui, Lei Zhu","doi":"10.1016/j.aeue.2025.156142","DOIUrl":"10.1016/j.aeue.2025.156142","url":null,"abstract":"<div><div>In this article, absorptive filtering antennas (AFAs) are implemented for suppressing unwanted radiation and improving impedance matching outside the working band. To achieve that, a multi-mode absorptive resonator (MMAR) is presented to enhance the radiation bandwidth while providing out-of-band absorption. It is then used to constitute the AFA with high efficiency and controllable performance, including radiation bandwidth and absorptive sidebands, generating flexible radiation nulls and reflection zeros. Specifically, the MMARs are implemented with resistors properly loaded on the microstrip ring resonator to excite the slot antenna. While the open-circuited stubs are introduced to adjust the absorptive frequency by manipulating the higher resonant mode, another pin-loaded MMAR is presented to produce additional resonant modes near the passband, resulting in higher selectivity and a continuous impedance matching band. Simulation results reveal that its working bandwidth depends on the coupling feeding structure. Meanwhile, absorptive frequencies can be adjusted by using the stepped-impedance resonator. According to the absorption curves that vary with resistance values, the flexible performance of the AFA is verified by measurement. Measured and simulated results consistently reveal a high efficiency of about 90 % across a wide bandwidth of 33 %.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"205 ","pages":"Article 156142"},"PeriodicalIF":3.2,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617910","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