This article demonstrates a voltage differencing inverting buffered amplifier (VDIBA)-based resistorless flux-controlled memristor emulator circuit with tunability. Two VDIBA blocks serve as active components, and a grounded capacitor serving as a passive part. The proposed emulator design is devoid of multipliers and resistors through effective utilization of port relationships. Including tunability, the suggested emulator functions in both incremental and decremental modes. It accurately depicts the attributes of an ideal memristor up to 12.7 MHz and consumes a total power of 1.34 mW. The mathematical analysis is substantiated through Cadence simulation in 0.18- $mu text{m}$ Taiwan Semiconductor Manufacturing Company (TSMC) technology with the supply voltage of ±1 V. Nonideal, single/parallel, Monte-Carlo sampling and corner analysis were conducted to confirm circuit resilience. The nonvolatile nature of the presented emulator model has also been included. A breadboard prototype incorporating the ICs CA3080 and LT1193 are built to conduct an experimental demonstration. The experimental findings were consistent with the theoretical expectations and simulation results.
{"title":"Electronically Tunable Flux-Controlled Resistorless Memristor Emulator","authors":"Sagar;Niranjan Raj;Vijay Kumar Verma;Rajeev Kumar Ranjan","doi":"10.1109/ICJECE.2022.3182711","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3182711","url":null,"abstract":"This article demonstrates a voltage differencing inverting buffered amplifier (VDIBA)-based resistorless flux-controlled memristor emulator circuit with tunability. Two VDIBA blocks serve as active components, and a grounded capacitor serving as a passive part. The proposed emulator design is devoid of multipliers and resistors through effective utilization of port relationships. Including tunability, the suggested emulator functions in both incremental and decremental modes. It accurately depicts the attributes of an ideal memristor up to 12.7 MHz and consumes a total power of 1.34 mW. The mathematical analysis is substantiated through Cadence simulation in 0.18-\u0000<inline-formula> <tex-math>$mu text{m}$ </tex-math></inline-formula>\u0000 Taiwan Semiconductor Manufacturing Company (TSMC) technology with the supply voltage of ±1 V. Nonideal, single/parallel, Monte-Carlo sampling and corner analysis were conducted to confirm circuit resilience. The nonvolatile nature of the presented emulator model has also been included. A breadboard prototype incorporating the ICs CA3080 and LT1193 are built to conduct an experimental demonstration. The experimental findings were consistent with the theoretical expectations and simulation results.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"311-317"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-24DOI: 10.1109/ICJECE.2022.3178177
M. Madhu Shobini;D. Prince Winston;S. Satheesh Kumar;M. Pravin;A. G. Aakash;B. Gurukarthik Babu
Advancements in the field of multilevel converters (MLCs) recently have contributed to diverse electrical field applications such as electric vehicles, hybrid energy storage system, and smart grid. In the earlier stages of the basic MLC structure, a large number of switching devices were employed to obtain the replica of the sine wave. This article focuses on reducing the count of switching devices to half the quantity for a higher number of levels in the MLC structure. Proportionally, overall cost and operational complexity in power semiconductor switches get reduced remarkably providing stable operation. In this article, a new topology has been implemented from the knowledge of conventional converters and existing MLCs derived from literature. The proposed topology is designed with a reduced number of both switching devices and dc sources compared to the existing hybrid type and conventional converter structures. Its corresponding topology and mode of operations during each level are studied and the performances are also analyzed. Switching components’ requirement, switching state table and voltage stress, and total harmonic distortion (THD) values of the proposed topology were evaluated. The output five-level voltage has been generated using both MATLAB simulation and hardware experimental setup. The proposed topology with reduced device components exhibits its superior characteristics in all aspects.
{"title":"S-Connected Ladder Fashion Multilevel Topology With Reduced Device Count","authors":"M. Madhu Shobini;D. Prince Winston;S. Satheesh Kumar;M. Pravin;A. G. Aakash;B. Gurukarthik Babu","doi":"10.1109/ICJECE.2022.3178177","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3178177","url":null,"abstract":"Advancements in the field of multilevel converters (MLCs) recently have contributed to diverse electrical field applications such as electric vehicles, hybrid energy storage system, and smart grid. In the earlier stages of the basic MLC structure, a large number of switching devices were employed to obtain the replica of the sine wave. This article focuses on reducing the count of switching devices to half the quantity for a higher number of levels in the MLC structure. Proportionally, overall cost and operational complexity in power semiconductor switches get reduced remarkably providing stable operation. In this article, a new topology has been implemented from the knowledge of conventional converters and existing MLCs derived from literature. The proposed topology is designed with a reduced number of both switching devices and dc sources compared to the existing hybrid type and conventional converter structures. Its corresponding topology and mode of operations during each level are studied and the performances are also analyzed. Switching components’ requirement, switching state table and voltage stress, and total harmonic distortion (THD) values of the proposed topology were evaluated. The output five-level voltage has been generated using both MATLAB simulation and hardware experimental setup. The proposed topology with reduced device components exhibits its superior characteristics in all aspects.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"285-292"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-23DOI: 10.1109/ICJECE.2022.3178696
P. Anbarasan;M. Venmathi;M. Vijayaragavan;V. Krishnakumar
The main aim of this article is to implement a novel active power decoupling-based Luo converter for the weak grid system interfacing photovoltaic (PV) system. The modified Perturb and Observe (P&O) algorithm has been used for maximum power extraction from the PV source. The proposed system is capable of operating in the standalone mode and the grid-connected mode. The Luo converter is promising with the viewpoint of low inrush current, high voltage gain, small ripples along with high power density, high efficiency, and simple structure. Hence, the Luo converter has been used for maximum power extraction from the PV source, which is appropriate for both grid-tied and islanding modes of operation. The modified P&O algorithm has been used for maximum power extraction. The proposed MPPT technique reduces the drift problem, which occurs in the conventional MPPT methods by including the data of change in current ( $Delta I$ ) in addition to the data used in the conventional P&O algorithm. This extraction has achieved by using a novel decoupling method, which, in turn, reduces the size of the filter. The converter along with the decoupling method also ensures reduced harmonics at the grid output. The operational principle and the stability analysis of the proposed converter have been analyzed in different modes of operation, such as grid-connected mode and standalone. The simulation has been carried out in MATLAB/Simulink environment. The implementation of the converter is carried out using a microcontroller-based prototype model to validate the performance. The efficiency of the proposed converter has been calculated to be 87.53% when operating under the grid-connected mode, whereas the efficiency is 92.46% when operating under the standalone mode.
{"title":"Performance Enhancement of Grid Integrated Photovoltaic System Using Luo Converter","authors":"P. Anbarasan;M. Venmathi;M. Vijayaragavan;V. Krishnakumar","doi":"10.1109/ICJECE.2022.3178696","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3178696","url":null,"abstract":"The main aim of this article is to implement a novel active power decoupling-based Luo converter for the weak grid system interfacing photovoltaic (PV) system. The modified Perturb and Observe (P&O) algorithm has been used for maximum power extraction from the PV source. The proposed system is capable of operating in the standalone mode and the grid-connected mode. The Luo converter is promising with the viewpoint of low inrush current, high voltage gain, small ripples along with high power density, high efficiency, and simple structure. Hence, the Luo converter has been used for maximum power extraction from the PV source, which is appropriate for both grid-tied and islanding modes of operation. The modified P&O algorithm has been used for maximum power extraction. The proposed MPPT technique reduces the drift problem, which occurs in the conventional MPPT methods by including the data of change in current (\u0000<inline-formula> <tex-math>$Delta I$ </tex-math></inline-formula>\u0000) in addition to the data used in the conventional P&O algorithm. This extraction has achieved by using a novel decoupling method, which, in turn, reduces the size of the filter. The converter along with the decoupling method also ensures reduced harmonics at the grid output. The operational principle and the stability analysis of the proposed converter have been analyzed in different modes of operation, such as grid-connected mode and standalone. The simulation has been carried out in MATLAB/Simulink environment. The implementation of the converter is carried out using a microcontroller-based prototype model to validate the performance. The efficiency of the proposed converter has been calculated to be 87.53% when operating under the grid-connected mode, whereas the efficiency is 92.46% when operating under the standalone mode.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"293-302"},"PeriodicalIF":0.0,"publicationDate":"2022-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-22DOI: 10.1109/ICJECE.2022.3178033
Hamzih ALsmadi;Huda Alsheyab;Malek Alsmadi;Emad Mohammed;Yazan Alomari;Salama Ikki
This work studies the unmanned aerial vehicles (UAVs) as a provider and supporter of the future wireless networks’ connections. In this work, we aim to find an optimal solution for the association problem between the wireless access points (WAPs) and UAVs, which allow us to maximize the total weighted sum rate. This optimization is subjected to quality of service (QoS), a number of links, available bandwidth, fairness, and coverage constraints. We propose a centralized algorithm to solve the association problem. Our results show that the proposed algorithm excels for the counterpart suboptimal and approaches the optimal solution with very reduced complexity.
{"title":"Less Complex and Higher Spectral Efficiency Resource Allocation Algorithm for Unmanned Aerial Vehicles Networks","authors":"Hamzih ALsmadi;Huda Alsheyab;Malek Alsmadi;Emad Mohammed;Yazan Alomari;Salama Ikki","doi":"10.1109/ICJECE.2022.3178033","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3178033","url":null,"abstract":"This work studies the unmanned aerial vehicles (UAVs) as a provider and supporter of the future wireless networks’ connections. In this work, we aim to find an optimal solution for the association problem between the wireless access points (WAPs) and UAVs, which allow us to maximize the total weighted sum rate. This optimization is subjected to quality of service (QoS), a number of links, available bandwidth, fairness, and coverage constraints. We propose a centralized algorithm to solve the association problem. Our results show that the proposed algorithm excels for the counterpart suboptimal and approaches the optimal solution with very reduced complexity.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"279-284"},"PeriodicalIF":0.0,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-07DOI: 10.1109/ICJECE.2022.3157662
Hugues Souchard de Lavoreille;Juan A. Gómez-Herrera;Miguel F. Anjos
Demand response (DR) has been increasingly growing in significance among the solutions to tackle climate change, by supporting the development of intermittent renewable energy sources in the smart grid. Many models based on mathematical optimization have been developed to address the challenge of supporting residential customers in providing flexibility services to the grid. However, comparing and applying those models is not always straightforward because of particular data handling or specific assumptions. In this work, we take advantage of the common aspects of DR models to build a metamodel, and hence an open source Python library that aims to unify the concepts and the data streaming in and out of the underlying mathematical optimization models. We demonstrate the effectiveness of the metamodel and of the Python library by using it to implement a task scheduler and to optimize the energy consumption for two dwellings.
{"title":"Pleiad: An Open-Source Modeling Package for Optimizing Residential Flexibility in the Smart Grid","authors":"Hugues Souchard de Lavoreille;Juan A. Gómez-Herrera;Miguel F. Anjos","doi":"10.1109/ICJECE.2022.3157662","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3157662","url":null,"abstract":"Demand response (DR) has been increasingly growing in significance among the solutions to tackle climate change, by supporting the development of intermittent renewable energy sources in the smart grid. Many models based on mathematical optimization have been developed to address the challenge of supporting residential customers in providing flexibility services to the grid. However, comparing and applying those models is not always straightforward because of particular data handling or specific assumptions. In this work, we take advantage of the common aspects of DR models to build a metamodel, and hence an open source Python library that aims to unify the concepts and the data streaming in and out of the underlying mathematical optimization models. We demonstrate the effectiveness of the metamodel and of the Python library by using it to implement a task scheduler and to optimize the energy consumption for two dwellings.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"254-261"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-21DOI: 10.1109/ICJECE.2022.3168112
Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.
列出本期出版物的编辑委员会、董事会、现任工作人员、委员会成员和/或协会编辑。
{"title":"IEEE Canadian Journal of Electrical and Computer Engineering","authors":"","doi":"10.1109/ICJECE.2022.3168112","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3168112","url":null,"abstract":"Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 2","pages":"C2-C2"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9349829/9758989/09802533.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68023869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article presents a contact fault diagnosis method of gas-insulated switchgear (GIS) plug-in connector via magnetic field measurement, magnetic field visualization, and deep neural network (DNN) classifiers. First, the surrounding magnetic field of GIS plug-in connector with normal contact (NC) condition and with artificially designed contact failures was measured by the Hall sensor array. Then, the measured magnetic field was gathered with an original matrix of $16times16$ dimensions. The $vert $ original matrix was then visualized by the max–min normalization and correlation matrix. Database containing 11 000 magnetic field images was labeled and segmented as training, validation, and test datasets. Furthermore, high-dimensional features of input magnetic field images were extracted by different DNN filters, including convolutional neural network (CNN), simple recurrent neural network (Sim-RNN), and long short-term memory (LSTM) network. Then, extracted high-dimensional features were fed into a fully connected (Fc) neural network with SoftMax classifiers to identify different contact faults. Finally, the performance of different DNN-based classifiers is compared by the fault classification merits, $t$ -distributed stochastic neighbor embedding ( $t$ -SNE) feature clustering, and confusion matrixes. Results show that the DNN-based model could achieve contact fault classification task with an accuracy of 97.7% and $F_{1_{}{mathrm {score}}}$ of 0.985. Therefore, the proposed method is useful for designing a high-performance contact status monitoring system of GIS equipment, thus improving its operation safety.
{"title":"Contact Failure Diagnosis for GIS Plug-In Connector by Magnetic Field Measurements and Deep Neural Network Classifiers","authors":"Xiangyu Guan;Shupeng Xue;Hui Peng;Naiqiu Shu;Wei Gao;David Wenzhong Gao","doi":"10.1109/ICJECE.2022.3159806","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3159806","url":null,"abstract":"This article presents a contact fault diagnosis method of gas-insulated switchgear (GIS) plug-in connector via magnetic field measurement, magnetic field visualization, and deep neural network (DNN) classifiers. First, the surrounding magnetic field of GIS plug-in connector with normal contact (NC) condition and with artificially designed contact failures was measured by the Hall sensor array. Then, the measured magnetic field was gathered with an original matrix of \u0000<inline-formula> <tex-math>$16times16$ </tex-math></inline-formula>\u0000 dimensions. The \u0000<inline-formula> <tex-math>$vert $ </tex-math></inline-formula>\u0000original matrix was then visualized by the max–min normalization and correlation matrix. Database containing 11 000 magnetic field images was labeled and segmented as training, validation, and test datasets. Furthermore, high-dimensional features of input magnetic field images were extracted by different DNN filters, including convolutional neural network (CNN), simple recurrent neural network (Sim-RNN), and long short-term memory (LSTM) network. Then, extracted high-dimensional features were fed into a fully connected (Fc) neural network with SoftMax classifiers to identify different contact faults. Finally, the performance of different DNN-based classifiers is compared by the fault classification merits, \u0000<inline-formula> <tex-math>$t$ </tex-math></inline-formula>\u0000-distributed stochastic neighbor embedding (\u0000<inline-formula> <tex-math>$t$ </tex-math></inline-formula>\u0000-SNE) feature clustering, and confusion matrixes. Results show that the DNN-based model could achieve contact fault classification task with an accuracy of 97.7% and \u0000<inline-formula> <tex-math>$F_{1_{}{mathrm {score}}}$ </tex-math></inline-formula>\u0000 of 0.985. Therefore, the proposed method is useful for designing a high-performance contact status monitoring system of GIS equipment, thus improving its operation safety.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"262-271"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-08DOI: 10.1109/ICJECE.2022.3166240
K. Suresh;Parimalasundar E.
A newly designed universal converter is depicted for all forms of power conversions that include step-up and step-down operations. Universal operations include a rectifier, an inverter, a dc–dc converter, and ac voltage control operations in multi-input and multi-output circuits. The circuit consists of power switches such as six transistors, four thyristors, and two diodes, along with two inductors and two capacitors. The inductor role is important for step-up and step-down voltage levels from the source to the required output. In the existing converter, the number of switches is reduced from 26 to 12 in the proposed converter to obtain efficient operations. The circuit is initially developed in a MATLAB/Simulink platform by using a mathematical model and, finally, feasibility and effectiveness have been tested in the hardware test bench model. This converter is highly recommended for wind-solar-powered self-charging hybrid electric vehicles.
{"title":"Design and Implementation of Universal Converter Conception et implémentation d’un convertisseur universel","authors":"K. Suresh;Parimalasundar E.","doi":"10.1109/ICJECE.2022.3166240","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3166240","url":null,"abstract":"A newly designed universal converter is depicted for all forms of power conversions that include step-up and step-down operations. Universal operations include a rectifier, an inverter, a dc–dc converter, and ac voltage control operations in multi-input and multi-output circuits. The circuit consists of power switches such as six transistors, four thyristors, and two diodes, along with two inductors and two capacitors. The inductor role is important for step-up and step-down voltage levels from the source to the required output. In the existing converter, the number of switches is reduced from 26 to 12 in the proposed converter to obtain efficient operations. The circuit is initially developed in a MATLAB/Simulink platform by using a mathematical model and, finally, feasibility and effectiveness have been tested in the hardware test bench model. This converter is highly recommended for wind-solar-powered self-charging hybrid electric vehicles.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 3","pages":"272-278"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68033763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In order to improve the thrust density and efficiency of linear induction motors (LIMs) in large load transport situations, a cross-shaped LIM (CSLIM) structure is proposed in this article. The equivalent circuit of CSLIM is built. Based on that, the electromagnetic thrust expressions are deduced, and the expressions for parameters of equivalent circuits are given. The relationship between the coupling characteristics of the secondary inductive eddy current and the condition of the motor is analyzed. Finally, the simulation results verify the validity and superiority of the proposed analysis.
{"title":"Equivalent Circuit and Performance Investigation of Cross-Shaped Linear Induction Motor","authors":"Weichang Zhou;Zhaolong Sun;Hanning Qian;Yinhao Mao;Zhexin Zhuang","doi":"10.1109/ICJECE.2021.3135272","DOIUrl":"https://doi.org/10.1109/ICJECE.2021.3135272","url":null,"abstract":"In order to improve the thrust density and efficiency of linear induction motors (LIMs) in large load transport situations, a cross-shaped LIM (CSLIM) structure is proposed in this article. The equivalent circuit of CSLIM is built. Based on that, the electromagnetic thrust expressions are deduced, and the expressions for parameters of equivalent circuits are given. The relationship between the coupling characteristics of the secondary inductive eddy current and the condition of the motor is analyzed. Finally, the simulation results verify the validity and superiority of the proposed analysis.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 2","pages":"124-131"},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68023867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article presents a new fourth-order stub-based decoupling circuit for isolation improvement in a wideband tightly coupled multiple-input–multiple-output (MIMO) antenna array. The proposed decoupling circuit uses a fourth-order coupling-resonator filter effect and is designed using the structure’s admittance parameter. In the decoupling circuit, the pair of dual-band second-order stub-based filters is used for the desired band’s lower and upper frequencies. Finite transmission zeros provide cross-coupling, which helps maintain the admittance slope stopband between these bands and reduces coupling among MIMO elements. The proposed fourth-order decoupling circuit concept can be utilized for different wideband MIMO antenna applications to redesign the targeted band and cross-coupling scenario properly. In addition, to demonstrate the proposed decoupling circuit concept’s influence in achieving good wideband isolation in a compact dimension of $45times 40times1.6$ mm 3 , octagonal- and circular-shaped patch MIMO antennas are analyzed. To analyze the impact of the proposed decoupling circuit of the dimension $11.3times11$ mm 2 in the design, edge-to-edge separation between MIMO elements is kept at a minimum of 0.2 mm ( $0.0035lambda _{0 thinspace }$ at 5.4 GHz, WLAN band). This demonstrates that the decoupling circuits are antenna-independent and can be applied to other MIMO antennas. The measured S-parameters of the proposed wideband MIMO antenna present high isolation (>20 dB) between the antenna elements. Moreover, the proposed solutions’ radiation behavior and diversity performance are evaluated. The MIMO antenna element measured radiation efficiency is increased from 50% to 75%. It demonstrates good properties that make it a suitable contender for advanced scientific applications.
{"title":"Wideband MIMO Antenna Isolation Enhancement Using 4th-Order Cross-Coupled Decoupling Circuit","authors":"Harsh Verdhan Singh;D. Venkata Siva Prasad;Shrivishal Tripathi","doi":"10.1109/ICJECE.2022.3143865","DOIUrl":"https://doi.org/10.1109/ICJECE.2022.3143865","url":null,"abstract":"This article presents a new fourth-order stub-based decoupling circuit for isolation improvement in a wideband tightly coupled multiple-input–multiple-output (MIMO) antenna array. The proposed decoupling circuit uses a fourth-order coupling-resonator filter effect and is designed using the structure’s admittance parameter. In the decoupling circuit, the pair of dual-band second-order stub-based filters is used for the desired band’s lower and upper frequencies. Finite transmission zeros provide cross-coupling, which helps maintain the admittance slope stopband between these bands and reduces coupling among MIMO elements. The proposed fourth-order decoupling circuit concept can be utilized for different wideband MIMO antenna applications to redesign the targeted band and cross-coupling scenario properly. In addition, to demonstrate the proposed decoupling circuit concept’s influence in achieving good wideband isolation in a compact dimension of \u0000<inline-formula> <tex-math>$45times 40times1.6$ </tex-math></inline-formula>\u0000 mm\u0000<sup>3</sup>\u0000, octagonal- and circular-shaped patch MIMO antennas are analyzed. To analyze the impact of the proposed decoupling circuit of the dimension \u0000<inline-formula> <tex-math>$11.3times11$ </tex-math></inline-formula>\u0000 mm\u0000<sup>2</sup>\u0000 in the design, edge-to-edge separation between MIMO elements is kept at a minimum of 0.2 mm (\u0000<inline-formula> <tex-math>$0.0035lambda _{0 thinspace }$ </tex-math></inline-formula>\u0000 at 5.4 GHz, WLAN band). This demonstrates that the decoupling circuits are antenna-independent and can be applied to other MIMO antennas. The measured S-parameters of the proposed wideband MIMO antenna present high isolation (>20 dB) between the antenna elements. Moreover, the proposed solutions’ radiation behavior and diversity performance are evaluated. The MIMO antenna element measured radiation efficiency is increased from 50% to 75%. It demonstrates good properties that make it a suitable contender for advanced scientific applications.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"45 2","pages":"114-123"},"PeriodicalIF":0.0,"publicationDate":"2022-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68023864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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