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2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)最新文献

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A new design of a miniature microstrip patch antenna using Defected Ground Structure DGS 基于缺陷接地结构的微型微带贴片天线设计
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934598
R. Er-Rebyiy, J. Zbitou, A. Tajmouati, M. Latrach, A. Errkik, L. El Abdellaoui
{"title":"A new design of a miniature microstrip patch antenna using Defected Ground Structure DGS","authors":"R. Er-Rebyiy, J. Zbitou, A. Tajmouati, M. Latrach, A. Errkik, L. El Abdellaoui","doi":"10.1109/WITS.2017.7934598","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934598","url":null,"abstract":"The concept of Defected Ground Structures (DGS) has been developed to improve the characteristics of many microwave devices. For this purpose the DGS is also used in the microstrip antenna for some advantages such as antenna size reduction, mutual coupling reduction in antenna arrays etc… In this paper the defected ground structure (DGS) has been employed to miniaturize a microstrip patch antenna and to shift the resonance frequency from an initial value of 10 GHz to a final value at 3.5 GHz, without any change in the dimensions of the original microstrip patch antenna. This antenna is designed on a FR-4 substrate with dielectric constant 4.4 and thickness 1.6 mm and its size is 27 × 30 mm2. The antenna is designed, optimized, and miniaturized by using CST MW.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"517 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116235690","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}
引用次数: 21
Optimizing the size of a miniature K-band patch antenna with two ceramic substrates layers 两层陶瓷基板微型k波段贴片天线的尺寸优化
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934597
M. Hamdaoui, A. Roukhe, J. Foshi
{"title":"Optimizing the size of a miniature K-band patch antenna with two ceramic substrates layers","authors":"M. Hamdaoui, A. Roukhe, J. Foshi","doi":"10.1109/WITS.2017.7934597","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934597","url":null,"abstract":"In this work, we present a miniature multi-layered patch antenna for K-band applications. The size of the antenna has been optimized by using two substrates layers, introducing a rectangular probe between the layers, and insertion of an air-filled cavity into the lower substrate. Analysis and modeling were performed using the HFSS (High Frequency Structure Simulator) simulator based on the finite element method. The comparison between the obtained simulation results of antenna's parameters (S11, bandwidth, and gain) with those published, showed a good satisfaction.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122257284","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}
引用次数: 0
Trapezoidal control of Brushless DC motor based on DSP F28335 基于DSP F28335的无刷直流电机梯形控制
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934602
Ali Mousmi, A. Abbou, Yassine El Houm
{"title":"Trapezoidal control of Brushless DC motor based on DSP F28335","authors":"Ali Mousmi, A. Abbou, Yassine El Houm","doi":"10.1109/WITS.2017.7934602","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934602","url":null,"abstract":"Brushless DC motors (BLDC) can achieve a high performance on efficiency comparing to traditional Brushed DC motor, but their control is more complicated because it requires a phase supply switching circuit. This paper presents a trapezoidal control of an Outrunner Brushless motor based on Hall effect sensors and a DSP card to implement the all control scheme. An algorithm to calculate the rotor speed using the signal coming from one of Hall effect sensors is proposed. Finally some experiments are presented to illustrate the response on speed with PI control and verify the capability and performance of the control algorithm.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133367245","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}
引用次数: 9
Comparative study of the radiation patterns of circular patch antenna by using the model approach of the resonant cavity for microwave band RFID reader 利用微波波段RFID阅读器谐振腔模型方法对圆形贴片天线的辐射方向图进行对比研究
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934594
A. El Alami, S. Bennani, A. Slimani, A. Bendali
{"title":"Comparative study of the radiation patterns of circular patch antenna by using the model approach of the resonant cavity for microwave band RFID reader","authors":"A. El Alami, S. Bennani, A. Slimani, A. Bendali","doi":"10.1109/WITS.2017.7934594","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934594","url":null,"abstract":"The main objective of this work is to make a comparative study of the radiation patterns of circular patch antenna excited in transverses magnetics modes TM<inf>11</inf>, TM<inf>21</inf>, TM<inf>31</inf>, TM<inf>41</inf>, TM<inf>51</inf> and TM<inf>61</inf>. This antenna is printed on a Epoxy substrate having a dielectric constant of 4.4 and designed at a height 1.58mm from the ground plane. This study is based on the model approach of the resonant cavity and intended for microwave band RFID reader around a resonance frequency of 2.45 GHz. The simulation results show that the far field components E<inf>θ</inf> and E<inf>ø</inf> for dominant mode TM<inf>11</inf> present the better results in term of amplitude at θ = 0° compared to higher order modes TM<inf>21</inf>, TM<inf>31</inf>, TM<inf>41</inf>, TM<inf>51</inf> and TM<inf>61</inf>. The simulation was made by MATLAB program.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127071478","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}
引用次数: 1
Internet of things security 物联网安全
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934655
Yassine Chahid, M. Benabdellah, A. Azizi
{"title":"Internet of things security","authors":"Yassine Chahid, M. Benabdellah, A. Azizi","doi":"10.1109/WITS.2017.7934655","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934655","url":null,"abstract":"The consequences of security problems are increasingly serious. These problems can now lead to personal injury, prolonged downtime and irreparable damage to capital goods. To achieve this, systems require end-to-end security solutions that cover the layers of connectivity, furthermore, guarantee the privatization and protection of data circulated via networks. In this paper, we will give a definition to the Internet of things, try to dissect its architecture (protocols, layers, entities …), thus giving a state of the art of security in the field of internet of things (Faults detected in each layer …), finally, mention the solutions proposed until now to help researchers start their researches on internet of things security subject.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124200601","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}
引用次数: 159
Indoor localization using Wi-Fi method based on Fingerprinting Technique 基于指纹技术的Wi-Fi室内定位方法
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934613
Houria Chabbar, Mouhcine Chami
{"title":"Indoor localization using Wi-Fi method based on Fingerprinting Technique","authors":"Houria Chabbar, Mouhcine Chami","doi":"10.1109/WITS.2017.7934613","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934613","url":null,"abstract":"In recent years, the mobility market has experienced a phenomenal growth in the productivity of electronic equipment and development of new telecommunication services. This has given birth to the idea of providing services based on the user's position in several sectors. Although Global Positioning System (GPS) considered as the best solution for an open-air localization (Outdoor), it is inaccurate in urbanized and indoor environments and adaptation of such systems to those contexts are particularly challenging due to the disability of GPS signal to penetrate buildings because it needs to be in sight. Various indoor localization techniques were conducted to provide the best solution to deploy. This paper describes an implementation of Wi-Fi fingerprinting method using RSSI (Received Signal Strength Indicator) from access points to determine the position of users in indoor areas.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130584138","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}
引用次数: 20
Multiband rectangular dielectric resonator antenna for 5G applications 用于5G应用的多波段矩形介质谐振器天线
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934637
K. Allabouche, V. Bobrovs, F. Fererro, L. Lizzi, J. Ribero, N. El Amrani El Idrissi, M. Jorio, M. Elbakali
{"title":"Multiband rectangular dielectric resonator antenna for 5G applications","authors":"K. Allabouche, V. Bobrovs, F. Fererro, L. Lizzi, J. Ribero, N. El Amrani El Idrissi, M. Jorio, M. Elbakali","doi":"10.1109/WITS.2017.7934637","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934637","url":null,"abstract":"This paper introduces the design and simulation of multiband dielectric resonator antenna (DRA) for the fifth generation (5G) of cellular networks. The radiating element is a unique rectangular shaped DRA element with a distribution feeding technique based on micro-strip feed line coupled via an elliptical slot. The feed position and configuration has been deliberately designed for optimized matching. The structure is approximately 40mm×48mm in size, conceived on Arlan dielectric substrate. The antenna has been optimized for the 10.5–17 GHz frequency bands. Simulated return loss, radiation pattern and gain over the frequencies of interest have been presented. The proposed antenna structure is a good candidate for future 5G cellular applications.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134067731","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}
引用次数: 13
Compact microstrip lowpass filter with ultra-wide rejection-band 具有超宽抑制带的紧凑型微带低通滤波器
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934683
Meshaal A. Alyahya, M. Aseeri, Hatim A. Bukhari, H. Shaman, Abdulrahman Alhamrani, A. Affandi
{"title":"Compact microstrip lowpass filter with ultra-wide rejection-band","authors":"Meshaal A. Alyahya, M. Aseeri, Hatim A. Bukhari, H. Shaman, Abdulrahman Alhamrani, A. Affandi","doi":"10.1109/WITS.2017.7934683","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934683","url":null,"abstract":"A lowpass filter with wideband stopband is developed using microstrip line and proposed in this paper. It consists of shunt stepped-impedance open-circuited stubs and unit elements. The electrical length of the open-circuited stubs is chosen to be twice the length of the unit elements at a specific frequency. As a result, the filter can exhibit additional transmission zeros inside the rejection band and close to the cut-off frequency. Hence, the filter can provide an equal ripple performance with very high selectivity. The proposed design is verified by EM-simulations and experiment. A good agreement is attained between the calculated, simulated and measured results. The measured filter shows excellent performance with an extended stopband.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121096721","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}
引用次数: 6
A novel design of passive UHF RFID tag antenna mounted on paper 一种新型纸上无源超高频RFID标签天线设计
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934631
A. Ennajih, J. Zbitou, A. Errkik, A. Tajmouati, L. El Abdellaoui, M. Latrach
{"title":"A novel design of passive UHF RFID tag antenna mounted on paper","authors":"A. Ennajih, J. Zbitou, A. Errkik, A. Tajmouati, L. El Abdellaoui, M. Latrach","doi":"10.1109/WITS.2017.7934631","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934631","url":null,"abstract":"In this paper, a novel design of metamaterial passive tag antenna for radio frequency identification operating in the UHF band is proposed. The design of the proposed tag antenna included a meandering technique to match the antenna with the tag chip and a complementary split ring resonator to reduce the antenna size. An advanced Photopaper substrate having a permittivity of 3.3, loss tangent of 0.04 and thickness of 0.25mm is used to design this tag antenna. The dimensions of the proposed tag antenna are optimized by using ADS. The total size of this circuit is 84.6 × 28mm2. The performance of the proposed tag antenna is evaluated and analyzed based on gain, return loss, matching input impedance and read range. The simulated reflection coefficient is about −35dB at 915MHz, the impedance bandwidth is about 32.8MHz, gain is 1.8dB, and the read range is about 6.2 m.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126578186","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}
引用次数: 9
Miniaturization and reduction of mutual coupling for four arrays antennas using new structure of EBG 采用新型EBG结构的四阵列天线小型化和减少互耦
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934595
Ahmed Ghaloua, J. Zbitou, M. Latrach, L. El Abdellaoui, A. Tajmouati, M. C. Abounaima
{"title":"Miniaturization and reduction of mutual coupling for four arrays antennas using new structure of EBG","authors":"Ahmed Ghaloua, J. Zbitou, M. Latrach, L. El Abdellaoui, A. Tajmouati, M. C. Abounaima","doi":"10.1109/WITS.2017.7934595","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934595","url":null,"abstract":"The design of more than one antenna system called antenna arrays. Patch antenna arrays are used extensively due to their high directivity and gain, also light weight and low cost. In antenna arrays energy is wasted in backward radiation as well as losses due to mutual coupling. Placing of elements close to each other can minimize the overall size of an array. On the other hand, a major drawback of this type of antenna arrays is mutual coupling; that depends on the separation between the elements, causes unfavorable effects on antenna characteristics. The use of Electromagnetic Band Gap structures, also called photonic band gap (PBG) structures in the antenna arrays can limit the coupling by suppressing the surface waves. In this paper, a novel electromagnetic band gap (EBG) surface has been introduced by some modifications in conventional mushroom-like EBG structure which has more compact electrical dimensions. This structure is proposed to be placed in between four patch arrays antennas to reduce the mutual coupling loss. The investigation included E coupling direction, and antennas array system is analyzed using CST mws. A significant value of −27.036 dB mutual coupling reduction is reached at 5.8 GHz resonant frequency.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133764891","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}
引用次数: 2
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