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Design of a compact dual bands patch antenna for 5G applications 5G应用的紧凑型双频贴片天线设计
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934628
Yassine Jandi, F. Gharnati, Ahmed Oulad Said
{"title":"Design of a compact dual bands patch antenna for 5G applications","authors":"Yassine Jandi, F. Gharnati, Ahmed Oulad Said","doi":"10.1109/WITS.2017.7934628","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934628","url":null,"abstract":"This paper presents the design of a compact size dual bands patch antenna for the next generation 5G devices. The proposed compact size antenna has a compact structure of 19 × 19 × 0.787mm3 including the ground plane. The proposed antenna operates at 10.15 GHz and 28 GHz which are two of the candidate frequencies for the 5G mobile communications, the proposed design provides a gain of 5.51 dB at 10.15 GHz and 8.03 dB at 28 GHz and a directional the radiation pattern. The antenna was designed on Rogers5880 substrate with a thickness of 0.787mm. In this paper geometry of the antenna and various parameters such as return loss plot, gain plot, radiation pattern plot and VSWR plot are presented and discussed.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"51 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":"116830188","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: 53
Stereo vision based advanced driver assistance system 基于立体视觉的高级驾驶员辅助系统
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934605
Otmane Amimi, A. Mansouri, Saad Dose Bennani, Y. Ruichek
{"title":"Stereo vision based advanced driver assistance system","authors":"Otmane Amimi, A. Mansouri, Saad Dose Bennani, Y. Ruichek","doi":"10.1109/WITS.2017.7934605","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934605","url":null,"abstract":"in recent decades, vehicle manufacturers and system suppliers equipping these vehicles have made considerable efforts to improve their technology and road safety. One of the major advances is the introduction of advanced systems for driver assistance. These assistance systems ensure continuous monitoring of the environment of the vehicle and driving mode, so early detection of potentially hazardous situation. In a critical situation, these systems warn and provide active assistance to the driver and, if necessary, they work automatically to avoid a collision or reduce the consequences of an accident. And for better decision making, these autonomous driver assistance systems advanced certainly require devices capable of performing real scenes taken from the external environment of the vehicle. Various advanced systems for driver assistance based vision are already commercially available, but they have limitations regarding the robustness and adaptability to changing lighting and visual conditions. Related to this point, this paper describe an algorithm in image processing capable of improving the quality of acquired images of the external environment, this algorithm must be integrated in a stereoscopic process that allows the reconstruction of images 3D.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"33 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":"125436197","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
Design of a calibration board integrated in a Smart Electrical Energy Meter (hardware part) 集成在智能电能表中的校准板设计(硬件部分)
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934603
Zakariae Jebroni, Hajar Chadli, B. Tidhaf, E. Chadli
{"title":"Design of a calibration board integrated in a Smart Electrical Energy Meter (hardware part)","authors":"Zakariae Jebroni, Hajar Chadli, B. Tidhaf, E. Chadli","doi":"10.1109/WITS.2017.7934603","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934603","url":null,"abstract":"We present in this paper, the design of a calibration board integrated into a Smart Electrical Energy Meter (SEEM). Indeed, we proposed a method to calibrate remotely and onsite the SEEM, where the meter is self-calibrated based on a current reference value and a voltage reference value. These references should be generated by an integrated power source. So we included in the calibration board a converter and an AC load. The converter is used to convert the voltage coming from the electrical network, which can vary, to a reference voltage which is stable and known, while the AC load is used to set the current value. The designed converter is an AC-DC-AC type, called indirect converter. To control the DC-AC block switches we used a digital technique based on the feed-forward technique. Our design of the AC-AC converter is validated by a simulation on MATLAB where we show for a variable input voltage around a nominal value, the output voltage remains stable with a very low Total Harmonic Distortion (THD).","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"2007 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":"127308845","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
A wideband conformal flexible monopole antenna 一种宽带共形柔性单极天线
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934599
A. Hachi, H. Lebbar, M. Himdi
{"title":"A wideband conformal flexible monopole antenna","authors":"A. Hachi, H. Lebbar, M. Himdi","doi":"10.1109/WITS.2017.7934599","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934599","url":null,"abstract":"This paper presents the development and design of conformal flexible monopoles antennas. It can be used on different curved surfaces while maintaining all its parameters, The advantage of this monopole disc antenna consist on his capacity to remain matched for all radius of curvature. In addition, when the radius of curvature increase, the radiation pattern change from dipolar behavior (null in the broadside) to boresight axis. The proposed monopole antenna would be a good candidate for tracking radar application. The simulated results are compared successfully with experimental results.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"6 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":"133401358","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
Comparison between HC, FOCV and TG MPPT algorithms for PV solar systems using buck converter buck变换器光伏系统HC、FOCV和TG MPPT算法的比较
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934609
Lahcen El Mentaly, A. Amghar, H. Sahsah
{"title":"Comparison between HC, FOCV and TG MPPT algorithms for PV solar systems using buck converter","authors":"Lahcen El Mentaly, A. Amghar, H. Sahsah","doi":"10.1109/WITS.2017.7934609","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934609","url":null,"abstract":"In this work, the behavior of the maximum power point is simulated for different temperature and solar irradiation values using three methods known in the literature by Temperature Gradient (TG), Fractional Open-Circuit Voltage (FOCV) and Hill Climbing (HC). For each method, the MPPT controller acts on the duty cycle of a buck converter which is associated with the MSX-60 PV module. The simulation under the PSIM software showed that the TG method is well positioned compared to the FOCV method with an efficiency difference of 3%, which leads to the conclusion that the open circuit voltage can be directly deduced by the measurement of the temperature. Despite the success of the TG method, the HC method is still the best method thanks to its simplicity and its least cost.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"11 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":"115375217","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: 17
Dual band printed MIMO antennas for 5G handsets 用于5G手机的双频打印MIMO天线
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934634
I. Dioum, I. Diop, L. Sane, M. Khouma, K. Diallo
{"title":"Dual band printed MIMO antennas for 5G handsets","authors":"I. Dioum, I. Diop, L. Sane, M. Khouma, K. Diallo","doi":"10.1109/WITS.2017.7934634","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934634","url":null,"abstract":"In this article, a compact MIMO dual-band (2.6/3.6 GHz) antenna array for future 5G handsets is presented. The antenna element has a compact with size of 10.5×14.5 mm2. The proposed antenna array elements are symmetrically placed along the long edges of the smartphone, and they are composed of four same antenna types. The reference element antenna consists of U Shape structure and a connected meandered monopole. The simulated result shows that the presented antenna has dual-band at 2.5–2.7 GHz and 3.4–3.82 GHz, which has a bandwidth of 200 MHz and 400 MHz respectively for reflection coefficient less than −6dB. The port isolation is more than 11.5 dB across the whole band of interest without using any decoupling network for two antenna structure.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"CATV-3 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114123581","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: 4
Mutual coupling reduction and miniaturization arrays antennas using new structure of EBG 利用新型EBG结构减少互耦和小型化阵列天线
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934593
Ahmed Ghaloua, J. Zbitou, M. Latrach, L. El Abdellaoui, A. Errkik, R. Mandry
{"title":"Mutual coupling reduction and miniaturization arrays antennas using new structure of EBG","authors":"Ahmed Ghaloua, J. Zbitou, M. Latrach, L. El Abdellaoui, A. Errkik, R. Mandry","doi":"10.1109/WITS.2017.7934593","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934593","url":null,"abstract":"The microstrip patch antennas are associated with some disadvantages, such as narrow bandwidth and low gain. To meet the demands of long distance communication, is necessary to design antennas with very high gain. The easiest way of gain enhancement can be obtained is from the array models, but the increasing array spacing, the gain of the antenna gets reduced significantly also decreasing array spacing, a strong mutual coupling is appears. This letter describes a novel configuration of mushroom-type EBGs structures 13×2 to reduce mutual coupling between the radiating elements 2×4. Our objective is to reduce both the element separation and the mutual coupling between the patch antennas. The results show that a reduction in mutual coupling from −33.24 dB to −59.36 dB is obtained between elements at the operation frequency 5.8 GHz of the antenna array. The proposed configuration is designed, optimized, and miniaturized by using electromagnetic software CST Microwave Studio.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"73 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":"128580573","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: 4
A review of solar radiation prediction using artificial neural networks 利用人工神经网络预测太阳辐射的研究进展
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934658
M. Marzouq, Hakim El Fadili, Z. Lakhliai, Khalid Zenkouar
{"title":"A review of solar radiation prediction using artificial neural networks","authors":"M. Marzouq, Hakim El Fadili, Z. Lakhliai, Khalid Zenkouar","doi":"10.1109/WITS.2017.7934658","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934658","url":null,"abstract":"Prediction of solar radiation plays an important role in different energy systems. The aim of this paper is twofold: firstly, we provide an updated review of solar radiation prediction models using ANN's, based on 32 retained papers, by specifying the prediction horizon, ANN architecture and the corresponding obtained performance indicators. Secondly, research limitations are carried out followed by proposed recommendations and perspectives for future investigations.","PeriodicalId":147797,"journal":{"name":"2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS)","volume":"24 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":"123753810","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
Performance evaluation of a passive UHF RFID tag antenna using the embedded T-Match structure 采用嵌入式T-Match结构的无源超高频RFID标签天线的性能评估
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934636
H. Raihani, A. Benbassou, M. El Ghzaoui, J. Belkadid
{"title":"Performance evaluation of a passive UHF RFID tag antenna using the embedded T-Match structure","authors":"H. Raihani, A. Benbassou, M. El Ghzaoui, J. Belkadid","doi":"10.1109/WITS.2017.7934636","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934636","url":null,"abstract":"The impedance matching between an RFID IC (Radio Frequency IDentification-Integrated Circuit) and an RFID tag antenna is of a critical importance in RFID tag design. A poor match impedance results in less power delivered to the RFID IC and poor antenna performance that lead to poor communication between the reader and the tag. In this work, we search to match the input impedance of the planar dipole antenna for the UHF RFID (Ultra High Frequency) applications to a RFID chip at 915 MHz. To achieve this goal we have adopted the most popular method of adaptation “T-Match” which enables proper matching between the tag and the chip for maximum power transfer. HFSS (High Frequency Structure Simulator) tool was used as a platform to design, to match, to optimize and to present the circuit and the radiation parameters of the antenna printed on a flexible substrate. The results obtained by HFSS were compared to those obtained by CST MWS (Computer Simulation Technology-MicroWaves Studio). The match between the chip and the antenna is computed in terms of the power transmission coefficient.","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":"129159673","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
An efficient distributed speech processing in noisy mobile communications 在有噪声的移动通信中高效的分布式语音处理
2017 International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS) Pub Date : 2017-04-19 DOI: 10.1109/WITS.2017.7934614
M. Daalache, D. Addou, M. Boudraa
{"title":"An efficient distributed speech processing in noisy mobile communications","authors":"M. Daalache, D. Addou, M. Boudraa","doi":"10.1109/WITS.2017.7934614","DOIUrl":"https://doi.org/10.1109/WITS.2017.7934614","url":null,"abstract":"Mobile communications are greatly influenced by environmental noise that may cause a significant deterioration in automatic speech recognition (ASR) systems performance. In this paper, we present a new framework integrating a noise-robust front-end in distributed speech recognition (DSR) systems. Using the Aurora-2 speech database, the authors evaluate the development of an additional feature set for Mel-frequency-based European Telecommunications Standards Institute advanced front-end (ETSI-AFE) which we refer to as power-normalized cepstral coefficients (PNCCs). The experimental results show that, the proposed approach achieves a significant improvement in word recognition accuracy compared to the current ETSI-AFE deployed by the DSR technology on today's mobile phones.","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":"124354757","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
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