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2020 International Workshop on Antenna Technology (iWAT)最新文献

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Modified Patch Antenna Design Using Moth Search Algorithm for RF Energy Harvesting Applications 基于飞蛾搜索算法的射频能量收集改进贴片天线设计
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570609565
A. Boursianis, S. Koulouridis, P. Rocca, S. Goudos
{"title":"Modified Patch Antenna Design Using Moth Search Algorithm for RF Energy Harvesting Applications","authors":"A. Boursianis, S. Koulouridis, P. Rocca, S. Goudos","doi":"10.1109/iWAT48004.2020.1570609565","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570609565","url":null,"abstract":"Radio frequency energy harvesting is a well-promising technique to power wireless sensor network devices that require small amounts of energy to operate. It can be utilized as an alternative technique for power-constrained systems, such as wireless sensor networks with limited battery lifetime, by extending their energy supply. In outdoor environments, the dominant ambient radio wave sources are the broadcasting and the mobile communication networks. In this paper, we apply an optimization technique by utilizing Moth Search algorithm to design a modified microstrip patch antenna of three varying slots. The proposed antenna exhibits tuning operation in the LoRa (Long Range) and the cellular communications frequency bands of GSM-1800 and UMTS. Numerical results exhibit an acceptable performance of the proposed antenna for RF energy harvesting applications.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133789684","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
Geophysical Measurements Performed at Targu Ocna Salt Mine to Evaluate Subsurface Homogeneity Targu Ocna盐矿地下均匀性评价的地球物理测量
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570612656
A. Anghel, A. Badescu, Valentin Dedu, N. Rotar
{"title":"Geophysical Measurements Performed at Targu Ocna Salt Mine to Evaluate Subsurface Homogeneity","authors":"A. Anghel, A. Badescu, Valentin Dedu, N. Rotar","doi":"10.1109/iWAT48004.2020.1570612656","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570612656","url":null,"abstract":"This paper presents the results of an experimental campaign performed in a mine gallery from Targu Ocna salt mine (Bacau county, Romania) that aimed to assess the potential of various geophysical measurement methods to evaluate the homogeneity of salt layers. The test site contained two different subsurface layer structures: one that has a 7 m layer of rock salt followed by a cavity corresponding to the next exploitation level of the mine, and one that is formed only by solid layers. The specific purpose of the measurements was to emphasize the presence of this cavity. The investigations were performed using the following methods: ground-penetrating radar, electromagnetic ground conductivity analysis and seismic refraction. For each method we present the measurement configurations and the main results. The long term goal of the measurement campaign was to identify a reliable geophysical measurement technique that can be used as reference for future muon tomography-based measurements in salt mines or other types of soil/geological layers.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127825103","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
ULA Transmit Beamforming on SDR Platform 基于SDR平台的ULA发射波束形成
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570616261
Cristian Codau, R. Buta, A. Pastrav, T. Palade, P. Dolea, E. Puschita
{"title":"ULA Transmit Beamforming on SDR Platform","authors":"Cristian Codau, R. Buta, A. Pastrav, T. Palade, P. Dolea, E. Puschita","doi":"10.1109/iWAT48004.2020.1570616261","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570616261","url":null,"abstract":"Beamforming is a key element in current wireless communications, being employed in a broad variety of applications due to its high impact on system performance. This paper presents a Software Defined Radio system with a linear antenna array configuration that performs digital transmit beamforming by weighting the baseband I and Q components of the signal.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121377094","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
Investigation of Gap Cavity in Millimeter Multilayer Planar Antenna Array for 5G Applications 面向5G应用的毫米多层平面天线阵列隙腔研究
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570609300
L. Khashan
{"title":"Investigation of Gap Cavity in Millimeter Multilayer Planar Antenna Array for 5G Applications","authors":"L. Khashan","doi":"10.1109/iWAT48004.2020.1570609300","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570609300","url":null,"abstract":"The demand for 5G communication systems is to deliver high data rate and to provide larger capacity. Millimeter wave technology is considered to be the best solution for such requirements. 5G antennas are required to have a small size to fit into the commercial cellular handsets, large bandwidth to deliver the required capacity and high gain to combat the high attenuation of mm-waves. In this paper, a reference aperture-coupled four-element multilayer planar array is optimized for operation in the Ka-band. Different gap cavities between the antenna layers are assessed for better performance and ease of fabrication. A low cost millimeter 5G antenna operating at 28 GHz is fabricated and the achieved bandwidth is 7.1% as compared to the 4.6% in the original design.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116709101","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
Millimetre-wave Planar Bruce Array Antenna 毫米波平面布鲁斯阵列天线
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570608201
Zeeshan Ahmed, M. Hoang, P. McEvoy, M. Ammann
{"title":"Millimetre-wave Planar Bruce Array Antenna","authors":"Zeeshan Ahmed, M. Hoang, P. McEvoy, M. Ammann","doi":"10.1109/iWAT48004.2020.1570608201","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570608201","url":null,"abstract":"A tri-band mm-wave planar Bruce array antenna for fifth generation communications (5G) is presented. The 16-element planar Bruce array antenna is simulated and fabricated on Rogers RT/Duroid 5880 substrate with thickness of 0.254 mm. For a compact and simple structure, the antenna has a highly directional fan-beam radiation pattern at broadside and peak realized gain of 14.0 dBi.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116727361","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
Polymer-based 2.4 GHz Patch Antenna 聚合物基2.4 GHz贴片天线
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570617854
Yuchan Song, D. L. Goff, G. Riondet, K. Mouthaan
{"title":"Polymer-based 2.4 GHz Patch Antenna","authors":"Yuchan Song, D. L. Goff, G. Riondet, K. Mouthaan","doi":"10.1109/iWAT48004.2020.1570617854","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570617854","url":null,"abstract":"A highly flexible and conformable polymer-based patch antenna, based on commercial off-the-shelf (COTS) room temperature vulcanized silicone (RTV) silicone rubber substrate combined with a stretchable silver conductor, is presented. The measured performance of the antenna is compared with a reference antenna, which uses the same RTV silicone rubber as substrate and polyimide with copper cladding for the top layer and the ground plane. The measured gain of the polymer-based antenna is $sim$ 4 dB lower compared to the reference antenna. This is also predicted by simulations and is due to the lower conductivity of the conductive polymer compared to copper in the reference antenna. The radiation pattern and gain of the polymer-based antenna remain mostly unaffected when the antenna is conformed to cylindrical surfaces of various radiuses.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116817425","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: 7
A Simple and Wideband Decoupling Method for Antenna Array Applications 一种用于天线阵列的简单宽带解耦方法
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570598551
Yiming Zhang, Shuai Zhang, G. Pedersen
{"title":"A Simple and Wideband Decoupling Method for Antenna Array Applications","authors":"Yiming Zhang, Shuai Zhang, G. Pedersen","doi":"10.1109/iWAT48004.2020.1570598551","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570598551","url":null,"abstract":"In this work, a simple wavetrap-based decoupling method is proposed to suppress the mutual coupling among the antenna elements in a single antenna array. The proposed wavetrap structure consists of a transmission line and a resistor which are in series. By placing two wavetraps between two patch antennas, the isolation between the two corresponding ports can be significantly improved over a wide frequency band. Theoretical analyses and full-wave simulations are carried out to verify the decoupling performance of the proposed method. The results show that the proposed approach features well-designed decoupling characteristics, and can be widely used for largescale arrays.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"37 295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129792232","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 and Characterization of Compact Antennas for Wireless Sensing Applications 用于无线传感应用的紧凑型天线的设计和特性
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570616078
A. Sidibe, G. Loubet, A. Takacs, D. Dragomirescu
{"title":"Design and Characterization of Compact Antennas for Wireless Sensing Applications","authors":"A. Sidibe, G. Loubet, A. Takacs, D. Dragomirescu","doi":"10.1109/iWAT48004.2020.1570616078","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570616078","url":null,"abstract":"This paper addresses the design and the characterization of compact antennas designed for wireless sensing applications. More precisely these antennas have to be integrated in the rectenna part of a battery-free and wirelessly powered wireless sensing node embedded in a concrete material. A 3D compact dipole antenna topology is presented, it exhibits at maximum gain of +1.7 dBi at 868 MHz. By integrating this antenna in a metallic cavity, the gain can be enhanced to +4.5 dBi minimizing also the negative impact and the detuning effect of the concrete material on the antenna performances.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130719304","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
Advanced Reflectarray Antennas for Multispot Coverages in Ka Band Ka波段多点覆盖的先进反射天线
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570608647
Daniel Martinez-de-Rioja, J. Encinar, E. Martinez‐de‐Rioja, Y. Rodriguez-Vaqueiro, A. Pino
{"title":"Advanced Reflectarray Antennas for Multispot Coverages in Ka Band","authors":"Daniel Martinez-de-Rioja, J. Encinar, E. Martinez‐de‐Rioja, Y. Rodriguez-Vaqueiro, A. Pino","doi":"10.1109/iWAT48004.2020.1570608647","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570608647","url":null,"abstract":"This contribution proposes three different multibeam antenna farms based on reflectarrays to be used on board broadband communication satellites in Ka-band. The proposed antenna configurations make it possible to generate multispot coverages in a more efficient way than the antenna systems currently used, since they require a smaller number of antennas on board the satellite. Simulated results are presented for the three antenna configurations to evaluate their compliance with the system requirements.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122745043","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
Design of a conventional horn antenna for Ku band Ku波段传统喇叭天线的设计
2020 International Workshop on Antenna Technology (iWAT) Pub Date : 2020-02-01 DOI: 10.1109/iWAT48004.2020.1570612766
A. Heiman, A. Badescu
{"title":"Design of a conventional horn antenna for Ku band","authors":"A. Heiman, A. Badescu","doi":"10.1109/iWAT48004.2020.1570612766","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570612766","url":null,"abstract":"In this paper are presented the design and the simulation of a broadband pyramidal horn antenna for satellite applications. The design was performed using the method of approximation and the final simulations were performed with HFSS. The proposed antenna operates in the frequency range 12-18 GHz (Ku band). A linearly polarized rectangular guide is used for feeding. The results of the simulations exhibit low voltage standing wave ratio and good radiation properties for the Ku band.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124727440","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: 5
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