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2016 International Workshop on Antenna Technology (iWAT)最新文献

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Keynote speakers: Metamaterial-based ultra-low-profile broadband antennas 主讲人:基于超材料的超低轮廓宽带天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434776
Zhi Ning Chen
{"title":"Keynote speakers: Metamaterial-based ultra-low-profile broadband antennas","authors":"Zhi Ning Chen","doi":"10.1109/IWAT.2016.7434776","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434776","url":null,"abstract":"“Metamaterials” are the structures artificially engineered to realize unusual electromagnetic properties not yet found in nature. The introduction of metamaterials has greatly spurred the development of electromagnetic theory and engineering. At microwave bands, the application of metamaterial-based technologies to enhance the performance of antennas is attractive to both academia and industry. This talk will update the latest progress in developing metamaterialbased technologies for low-profile and broadband antennas at RF and microwave bands. One is how to manipulate the dispersion property of patch antennas to achieve a broad operating bandwidth with an ultra-low profile. The other one is how to introduce an anisotropic metadielectric loading to a dipole antenna to realize ultra-low profile and high radiation efficiency over a broad bandwidth. Both design ideas have been successfully used in practical wireless systems.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116890796","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
Multi-functional composite metamaterial-inspired EEAD antenna for structural applications 结构应用的多功能复合超材料激发EEAD天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-16 DOI: 10.1109/IWAT.2016.7434826
T. Baum, K. Ghorbani, K. Nicholson, A. Galehdar, R. Ziolkowski
{"title":"Multi-functional composite metamaterial-inspired EEAD antenna for structural applications","authors":"T. Baum, K. Ghorbani, K. Nicholson, A. Galehdar, R. Ziolkowski","doi":"10.1109/IWAT.2016.7434826","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434826","url":null,"abstract":"An electrically small, load-bearing Egyptian axe dipole (EAD) antenna has been sewn into a low loss, pure quartz glass composite material to investigate its performance. Previous investigations of embroidered Egyptian axe dipole antennas indicated that the dielectric losses of the associated epoxy-based composite, in conjunction with the high effective surface resistance of the conductive textile threads, significantly degrade their performance. Simulations of the EAD antenna using a composite sandwich structure based on an advanced embroidery technique and the much lower loss quartz fabric have shown that a realized gain of 0.9 dBi is possible, a dramatic improvement over previous realizations.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128684339","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: 3
Dielectric-loaded end-fire slot antenna with low back-lobe radiation for UHF RFID applications 用于超高频RFID应用的低后瓣辐射介电负载端火槽天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434838
Ramiro A. Ramirez, T. Weller
{"title":"Dielectric-loaded end-fire slot antenna with low back-lobe radiation for UHF RFID applications","authors":"Ramiro A. Ramirez, T. Weller","doi":"10.1109/IWAT.2016.7434838","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434838","url":null,"abstract":"In this paper two end-fire constant width slot antennas built over an FR4 substrate are presented for UHF RFID tracking systems (902-928 MHz). The antennas are fed by a CPW to slot-line transition tuned to 915 MHz. Dielectric loading is implemented as a way to reduce the half-power beamwidth (HPBW); specifically, variations in the FR4 substrate thickness and additional loading material are used to achieve a 3 dB beamwidth of 75°, which is an improvement of 55° compared with the 130° HPBW when no loading is applied. Corrugated edges provide front-to-back ratio enhancement, achieving a ratio of 17.74 dB compared to 10.7 dB with no corrugation.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128302667","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
Logo antenna for 5.8 GHz wireless communications 用于5.8 GHz无线通信的Logo天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434832
K. L. Jorgensen, K. Jakobsen
{"title":"Logo antenna for 5.8 GHz wireless communications","authors":"K. L. Jorgensen, K. Jakobsen","doi":"10.1109/IWAT.2016.7434832","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434832","url":null,"abstract":"A logo antenna for the 5.8 GHz ISM band is presented. The idea behind the logo antenna is to use the company or university logo as part of the antenna. When disguised as a logo, it may be more acceptable to place the antenna at optimal locations to obtain good coverage. In the present work the university logo has been used. The designed logo antenna has a measured and simulated 3-dB bandwidth of 153.1 MHz (2.6%) and 165.6 MHz (2.9%), respectively. The aperture fed, omnidirectional logo antenna is little hand sensitive.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128686955","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
Millimeter-wave automotive radar with PLL-generated ramps modelling by using SystemVue and MATLAB 利用SystemVue和MATLAB对具有锁相环生成坡道的毫米波汽车雷达进行建模
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434836
Libo Huang, Jie Bai, Huanlei Chen
{"title":"Millimeter-wave automotive radar with PLL-generated ramps modelling by using SystemVue and MATLAB","authors":"Libo Huang, Jie Bai, Huanlei Chen","doi":"10.1109/IWAT.2016.7434836","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434836","url":null,"abstract":"Millimeter wave automotive radar is one of the most important components in the advanced driver assistance system (ADAS), which detects objects around the ego vehicle with moderate cost. Because automotive radar is composed of a vast variety of different components including RF, analog and digital circuits and radar signal processing software, modelling the whole radar system is challenging. This paper presents modelling a whole 24GHz automotive radar by using SystemVue and MATLAB. The ramps of the radar are generated by a phase locked loop. The radar radio frequency frontend and the radar target echo signal are modelled in SystemVue and the radar signal processing is taken place in MATLAB. Influences of the real RF signal source on the radar performance of object detection can be analyzed.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134434506","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
Array antenna with high isolation based on EBG structures for ETC applications 用于ETC应用的基于EBG结构的高隔离阵列天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434831
Y. Liu, Bo Shen, Yunxue Xv, Ho‐Jun Lee, Sehwan Choi
{"title":"Array antenna with high isolation based on EBG structures for ETC applications","authors":"Y. Liu, Bo Shen, Yunxue Xv, Ho‐Jun Lee, Sehwan Choi","doi":"10.1109/IWAT.2016.7434831","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434831","url":null,"abstract":"A RHCP (Right Hand Circular Polarization) microstrip array antenna with EBG structures is designed and optimized. Compared with a conventional RHCP microstrip array antenna, the proposed antenna accomplishes high isolation up to -28dB. High isolation is achieved by simultaneously implementing mushroom-like electromagnetic gap band (EBG) structures, which operate in the same frequency range with the microstrip antenna. To validate our design method, comprehensive simulation has been done. Furthermore, both the return loss and axial ratio bandwidth of the proposed antenna cover the ETC operating band (5.75 GHz to 5.84 GHz) in China.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127069004","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
Characteristics of electric antennas aboard scientific spacecraft 科学航天器上电天线的特性
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434804
T. Imachi, Koudai Kita, M. Ozaki, S. Yagitani, R. Higashi
{"title":"Characteristics of electric antennas aboard scientific spacecraft","authors":"T. Imachi, Koudai Kita, M. Ozaki, S. Yagitani, R. Higashi","doi":"10.1109/IWAT.2016.7434804","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434804","url":null,"abstract":"To improve the accuracy of absolute calibration of a wire antenna which is used to observe electric fields on a scientific spacecraft, we analyzed the relationship between the antenna output voltage and electric field intensity. As a method we made \"Rheometry experiment\", measuring the output voltage of small model antenna which is placed in a known electric field in the water, and according to the result we investigate a theory considering the structure of antenna and the influence of the spacecraft body. We measured the frequency dependence of the effective length of a wire antenna at low frequencies, and made a theoretical method to describe the result of the experiment.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"39 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125741343","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
DOA estimation of signals with frequency characteristics and different powers using a compressed sensing technique 基于压缩感知技术的频率特征和不同功率信号的DOA估计
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434840
Taiki Endo, T. Nishimura, Y. Ogawa, T. Ohgane
{"title":"DOA estimation of signals with frequency characteristics and different powers using a compressed sensing technique","authors":"Taiki Endo, T. Nishimura, Y. Ogawa, T. Ohgane","doi":"10.1109/IWAT.2016.7434840","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434840","url":null,"abstract":"In recent years, much attention has been paid to direction of arrival (DOA) estimation using a compressed sensing technique. In our previous study, we have proposed a method to estimate DOAs of multi-band signals with frequency characteristics. However, we have assumed that all the arrival waves have the same amplitude. In this paper, we propose DOA estimation of signals with frequency characteristics and different powers among the arrived signals. Furthermore, we evaluate the method regardless of whether we know the frequency characteristics in advance.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128631509","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
Large area wireless power via a planar array of coupled resonators 通过平面阵列耦合谐振器的大面积无线电源
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434842
Xingyi Shi, Joshua R. Smith
{"title":"Large area wireless power via a planar array of coupled resonators","authors":"Xingyi Shi, Joshua R. Smith","doi":"10.1109/IWAT.2016.7434842","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434842","url":null,"abstract":"A method of enabling efficient wireless power delivery for a mobile receiver in a 3-D space is proposed. A reconfigurable planar array of coupled resonator (relay) coils is designed, and a method of choosing the optimal array configuration for a particular receiver position is proposed. Experimental results are obtained with a PCB implementation of the proposed planar relay array system operating near 13.56 MHz. Coverage improvements over conventional planar relay arrays are demonstrated.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132545152","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
Tunable band rejection in a tightly-coupled array using varactor diodes 使用变容二极管的紧耦合阵列中的可调谐带抑制
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434789
D. Papantonis, E. Yetisir, N. Ghalichechian, J. Volakis
{"title":"Tunable band rejection in a tightly-coupled array using varactor diodes","authors":"D. Papantonis, E. Yetisir, N. Ghalichechian, J. Volakis","doi":"10.1109/IWAT.2016.7434789","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434789","url":null,"abstract":"A mechanism for tunable band rejection in the reconfigurable balun of an ultra-wideband (UWB) tightly-coupled array (TCA) is presented. A variable capacitor increases and controls the effective length of the balun's short stub, shorting out the dipoles of the array at a specific frequency. The practical implementation of the rejection scheme using varactor diodes is discussed. A number of different varactor diodes has been measured using a custom-made evaluation board to model their actual behavior. Simulation results, including the characterized components and their DC biasing network, verify the design. A fabricated prototype of the reconfigurable array will be presented at the conference.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134599246","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
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