Aeu-International Journal of Electronics and Communications最新文献_第2页

A cost-effective hardware accelerator for PMDC motor-based auxiliary component automation of electric three-wheelers

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-10 DOI: 10.1016/j.aeue.2025.155766

Pratikanta Mishra , Atanu Banerjee , Mousam Ghosh , Naresh Kumar Vemula , Pramod Kumar Meher , B. Chitti Babu

{"title":"A cost-effective hardware accelerator for PMDC motor-based auxiliary component automation of electric three-wheelers","authors":"Pratikanta Mishra , Atanu Banerjee , Mousam Ghosh , Naresh Kumar Vemula , Pramod Kumar Meher , B. Chitti Babu","doi":"10.1016/j.aeue.2025.155766","DOIUrl":"10.1016/j.aeue.2025.155766","url":null,"abstract":"<div><div>In this paper, a quadral-duty digital pulse width modulation (QDPWM) control-based hardware accelerator for the auxiliary permanent magnet brushed DC (PMDC) motors of electric three-wheelers (E3Ws) is proposed. The proposed accelerator involves a precise motor speed calculation circuit, including a buffer to hold the position encoder signal for a predefined number of clock cycles to eliminate encoder signal noise. The proposed hardware accelerator is described with supporting mathematical models and is implemented on field-programmable gate array (FPGA) as well as application-specific integrated circuit (ASIC) platforms using SCL 180 nm CMOS technology library. The ASIC implementation at 12.5 MHz shows that the proposed design has significantly less area and power consumption than the conventional PI-PWM controller-based architecture and is comparable to the dual-duty digital pulse width modulation (DDPWM) controller. The proposed FPGA prototype-driven motor attains a wider speed range with low-speed ripple than DDPWM controller-based architecture. The position signal buffer circuit also enables the accelerator to tolerate noise or glitches in the position encoder signal, which makes the speed calculation precise and reliable. The proposed hardware accelerator-based PMDC drive performance has been validated regarding settling time, speed tracking ability, tolerance to dynamic speed, and load variations on a laboratory test setup.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"195 ","pages":"Article 155766"},"PeriodicalIF":3.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686074","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 general design methodology for Dual-Resonant topology with inherent constant current and constant voltage outputs under varying mutual inductance

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-09 DOI: 10.1016/j.aeue.2025.155761

Yiming Zhang, Guo Wei, Chao Wang, Lianbin Cheng, Lingjun Hao, Botong Yuan

{"title":"A general design methodology for Dual-Resonant topology with inherent constant current and constant voltage outputs under varying mutual inductance","authors":"Yiming Zhang, Guo Wei, Chao Wang, Lianbin Cheng, Lingjun Hao, Botong Yuan","doi":"10.1016/j.aeue.2025.155761","DOIUrl":"10.1016/j.aeue.2025.155761","url":null,"abstract":"<div><div>To accommodate the battery charging process in wireless power transfer (WPT) systems, dual-frequency topologies capable of supporting constant current (CC) and constant voltage (CV) output modes have been extensively studied. However, most existing topologies struggle to maintain two output modes and zero phase angle (ZPA) input under varying mutual inductance (MI). To overcome this limitation, this paper proposes a general design methodology for dual-resonant topologies with inherent CC and CV outputs, ensuring that two output modes and ZPA input are maintained across different MI values. The proposed methodology begins by segmenting the topology into three parts, effectively decoupling the compensation parameters from MI, with the mode conversion and resonance of each segment designed independently. The design process first establishes the two output modes, followed by the ZPA input design. To achieve ZPA input, additional parameter constraints and topology compensation are introduced. Moreover, principles for identifying feasible compensation positions and corresponding parameter calculation methods are provided, enabling systematic and efficient topology design. Finally, based on the proposed methodology, an LCCL-LCLC compensated topology is derived. Experimental validation confirms the effectiveness and practical applicability of the proposed design approach, demonstrating its potential for enhancing the performance and reliability of WPT systems.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155761"},"PeriodicalIF":3.0,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611552","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 high linearity and low-noise potentiostat with current Mirror, chopper stabilization and relaxation circuit techniques for implantable sensor applications

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-08 DOI: 10.1016/j.aeue.2025.155762

Siraporn Sakphrom , Thunyawat Limpiti , Sarawuth Chaimool , Yuttana Kumsuwan

{"title":"A high linearity and low-noise potentiostat with current Mirror, chopper stabilization and relaxation circuit techniques for implantable sensor applications","authors":"Siraporn Sakphrom , Thunyawat Limpiti , Sarawuth Chaimool , Yuttana Kumsuwan","doi":"10.1016/j.aeue.2025.155762","DOIUrl":"10.1016/j.aeue.2025.155762","url":null,"abstract":"<div><div>This work proposes a potentiostat design with low noise, high linearity, and low power consumption capabilities for implantable biomedical sensor applications. This work is novel in that it combines three techniques: a current mirror-based topology, a chopper stabilization, and a relaxation circuit. All circuits in the design operate on 0.13 μm standard CMOS technology, utilizing a single 1.2 V power supply. The current mirror-based potentiostat mirrors the current to the frequency converter in an RC relaxation oscillator. The period between pulses inversely affects current. Using simulation software, the current was adjusted from 29.8nA to 2.83μA, inversely proportional to altering the working electrode resistance from 100kΩ to 10MΩ. Output frequencies ranged from 470.10 kHz to 27.43 MHz. The simulated results revealed that the mirrored sensing current was accurate with a 0.02 % deviation. The chopper stabilization was combined to regulate the potential using a negative feedback loop that was able to decrease noise by about 18.20 % at the observed frequency of 1 Hz. It was minimized at low frequency while the system stability increased. The overall power consumption of all circuits was less than 42.56 µW. As a result, this designed potentiostat is a promising candidate for implantable sensor applications.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155762"},"PeriodicalIF":3.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601204","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

Realization of an absorptive bandpass filter based on groove gap waveguide technology

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-08 DOI: 10.1016/j.aeue.2025.155765

Fatemeh Dehghani , Javad Ghalibafan , Morteza Rezaee

引用次数: 0

Ultra-miniaturized frequency-selective rasorber with P/L-band absorption and C/X/Ku-band transmission for low-frequency RCS or EMI suppression of ultra-wideband antennas

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-08 DOI: 10.1016/j.aeue.2025.155747

Shengchi Zhu , Yulan Wang , Youhui Feng , Dongliang Liu , Yuanqi Guo , Zongxin Wang , Zhenxin Cao

{"title":"Ultra-miniaturized frequency-selective rasorber with P/L-band absorption and C/X/Ku-band transmission for low-frequency RCS or EMI suppression of ultra-wideband antennas","authors":"Shengchi Zhu , Yulan Wang , Youhui Feng , Dongliang Liu , Yuanqi Guo , Zongxin Wang , Zhenxin Cao","doi":"10.1016/j.aeue.2025.155747","DOIUrl":"10.1016/j.aeue.2025.155747","url":null,"abstract":"<div><div>In this paper, a miniaturized frequency-selective rasorber (FSR) with an ultra-wide absorption band in the P, L-band and an ultrawide transmission window in the C, X, and Ku-band simultaneously is theoretically proposed and experimentally verified. Unlike introducing a transmission window based on paralleled LC resonance, the non-resonant transmission nature of the lossy layer is investigated and applied to achieve ultra-wideband transmission of the proposed FSR. Secondly, meander lines and lumped components are utilized in the lossy layer to suppress the undesired harmonic resonance in the transmission band and achieve miniaturization. The proposed FSR is finally realized by combining the lossy layer with a multilayer sandwich-liked wideband bandpass frequency-selective surface (FSS). Measured results are in considerable consistency with the simulation ones and illustrate that the prototype of the proposed FSR achieves over 90% absorption from 500 MHz to 2.25 GHz with a fractional bandwidth of 127.3% and a -1-dB transmission bandwidth of 100.0% covering 4.6–13.8 GHz. The unit cell’s size is only 0.026 <span><math><mrow><msub><mrow><mi>λ</mi></mrow><mrow><mi>L</mi></mrow></msub><mspace></mspace><mo>×</mo><mspace></mspace><mn>0</mn><mo>.</mo><mn>026</mn><msub><mrow><mi>λ</mi></mrow><mrow><mi>L</mi></mrow></msub><mspace></mspace><mo>×</mo><mspace></mspace><mn>0</mn><mo>.</mo><mn>10</mn><msub><mrow><mi>λ</mi></mrow><mrow><mi>L</mi></mrow></msub></mrow></math></span> (<span><math><msub><mrow><mi>λ</mi></mrow><mrow><mi>L</mi></mrow></msub></math></span> is the free-space wavelength at the lowest operation frequency). The proposed FSR is of great potential in low-frequency radar stealth or electromagnetic interference (EMI) shielding applications for emerging wideband and ultra-wideband antenna systems.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155747"},"PeriodicalIF":3.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619581","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

Planar H-plane horn antenna with quasi-omnidirectional pattern for 5G applications

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-06 DOI: 10.1016/j.aeue.2025.155752

Shrabani Mukherjee, Nilanjan Dutta, Kaushik Mandal

{"title":"Planar H-plane horn antenna with quasi-omnidirectional pattern for 5G applications","authors":"Shrabani Mukherjee, Nilanjan Dutta, Kaushik Mandal","doi":"10.1016/j.aeue.2025.155752","DOIUrl":"10.1016/j.aeue.2025.155752","url":null,"abstract":"<div><div>This article proposes a quasi-omnidirectional planar H-plane horn antenna having triple-band characteristics, operating in the 5G frequency region centered around 28 GHz. This design comprises four identical substrate integrated waveguide (SIW) based planar H-plane horns. Four coplanar H-plane horns are placed orthogonal to each other to cover the entire 360° azimuth plane, thereby realizing quasi-omnidirectional radiation patterns. The waveguide sections of four H-plane horns are joined at the center location, where a single coaxial probe is connected to excite TE<sub>10</sub> mode in the waveguide section. The center conductor of this coaxial probe is not touched with the broad wall of the horn to realize a planar horn antenna in a true sense. Via-based corrugation has been conceived at the flaring section of each horn that improves the impedance bandwidth (IBW) response. Gain has been enhanced by incorporating trapezoidal-shaped dielectric loads at the front of all four horn apertures. The proposed structure exhibits triple operating bands ranging from 25.58 − 26.18 GHz, 26.59–29.12 GHz, and 29.98–30.72 GHz with a stable peak gain of 7.10–7.76 dBi across the operating bands. The measured and simulated results are in good agreement.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155752"},"PeriodicalIF":3.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611623","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 comprehensive design and fabrication of rectangular waveguide differential phase shift circulator 矩形波导差分移相环行器的综合设计与制造

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-06 DOI: 10.1016/j.aeue.2025.155748

Cengizhan Şahin, Serkan Şimşek

引用次数: 0

Multifunction dielectric resonator antenna featuring omnidirectional switchable patterns

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-05 DOI: 10.1016/j.aeue.2025.155750

Debashis Das , Rajib Jana , Ravi Kumar Gangwar , Sachin Maithani

{"title":"Multifunction dielectric resonator antenna featuring omnidirectional switchable patterns","authors":"Debashis Das , Rajib Jana , Ravi Kumar Gangwar , Sachin Maithani","doi":"10.1016/j.aeue.2025.155750","DOIUrl":"10.1016/j.aeue.2025.155750","url":null,"abstract":"<div><div>This article presents innovative techniques for designing a multifunctional dielectric resonator antenna (DRA) system capable of omnidirectional switchable polarization and radiation patterns. The system comprises a four-port antenna and two back-to-back rectangular DRAs (RDRAs) mounted on a double-layer circular ground substrate. Each RDRA is excited by two orthogonal pole feeds via stripline for TE<sub>1δ1</sub>/TE<sub>δ11</sub> mode operation, generating a bi-directional pattern. Eight rectangular slots on each ground surface form a defected ground structure (DGS), allowing precise control of ground plane currents and enabling dynamic beamwidth adjustment within the four-port antenna system. Strategic port selection facilitates a transition to reconfigurable omnidirectional radiation, offering linear polarization orientation and beam scanning across the entire sphere. The DGS also minimizes cross-polarization in these omnidirectional patterns. The article explores the underlying physics of beamwidth expansion and cross-polarization reduction. The four-port antenna with DGS achieves a 170° HPBW in the E-plane and 180° in the H-plane, with −16 dB port isolation, while reconfigurable omnidirectional patterns exhibit −25 dB cross-polarization suppression. Simulations using Ansys HFSS and CST Studio, along with prototype fabrication and testing, validate the four-port antenna performance and reconfigurable omnidirectional functionalities. This proposed antenna is suitable for Wi-Fi, 5G, and other modern communication applications.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155750"},"PeriodicalIF":3.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593046","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

P-I-N diode-based hybrid mode reconfigurable element antenna for dual-linearly polarized Ka-band antenna array

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-03 DOI: 10.1016/j.aeue.2025.155742

Nguyen Van Thang, Jae-Young Chung

{"title":"P-I-N diode-based hybrid mode reconfigurable element antenna for dual-linearly polarized Ka-band antenna array","authors":"Nguyen Van Thang, Jae-Young Chung","doi":"10.1016/j.aeue.2025.155742","DOIUrl":"10.1016/j.aeue.2025.155742","url":null,"abstract":"<div><div>This study introduces a multi-functional antenna array concept with polarization and phase-out reconfigurability operating in the <em>Ka</em>-band. We propose a novel dual-polarized reconfigurable antenna element featuring 1-bit phase quantization functionality using p-i-n diodes. The element comprises four p-i-n diodes on one symmetrical metallic layer and two bias lines for controlling four main outgoing wave modes. This single antenna offers a bandwidth of 1 GHz in four modes at 27 GHz, along with approximately 180 ° phase conversion for both linear polarization (LP) states. We construct 4 × 4 a multi-functional array with the arrangement of mirroring elements technique to suppress the cross polarization without the requirement for an external phase-shift compared to conventional dual-port method. Measurement results show a peak gain of 14.1 dBi with the XPD of 24 dB. Additionally, we show beam-steering capability <span><math><mo>±</mo></math></span>30 ° of this antenna element when combined with a beamformer offering only continuous 180 ° phase-shift.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"194 ","pages":"Article 155742"},"PeriodicalIF":3.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561565","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

Cavity-stacked filter in CLAF-SIW technology for millimeter waves

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2025-03-01 DOI: 10.1016/j.aeue.2025.155725

Cleofás Segura-Gómez , Andrés Biedma-Pérez , David Santiago , Ángel Palomares-Caballero , Iván Arregui , Miguel A. Gómez Laso , Pablo Padilla

{"title":"Cavity-stacked filter in CLAF-SIW technology for millimeter waves","authors":"Cleofás Segura-Gómez , Andrés Biedma-Pérez , David Santiago , Ángel Palomares-Caballero , Iván Arregui , Miguel A. Gómez Laso , Pablo Padilla","doi":"10.1016/j.aeue.2025.155725","DOIUrl":"10.1016/j.aeue.2025.155725","url":null,"abstract":"<div><div>This work presents the design of a cavity-stacked bandpass filter (BPF) using contactless air-filled substrate integrated waveguide (CLAF-SIW) technology for millimeter-wave frequencies. This technology is a variant of air-filled SIW technology, incorporating contactless techniques. It enables the reduction of dielectric losses in SIW filters while supporting multilayer structures with robust assembly. The cavity-stacked filter topology allows for very good frequency responses with a reduced footprint and no transitions needed. As an example, a 4th-order Chebyshev bandpass filter composed of four stacked cavities, coupled through irises, is shown. The iris layers are fabricated by metallizing the slot edges of a PCB, while the cavity layers are implemented using CLAF-SIW. The filter has been designed and manufactured to provide a passband response from 36 GHz to 37.5 GHz. A good agreement between measurement and simulation has been achieved. The losses in the proposed CLAF-SIW filter are primarily due to the metal roughness of the low-cost commercial laminates used.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"193 ","pages":"Article 155725"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509036","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