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

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Linearly and circularly polarized radiation from metaline antennas 金属天线的线偏振和圆偏振辐射
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434825
H. Nakano, K. Sakata, J. Yamauchi
{"title":"Linearly and circularly polarized radiation from metaline antennas","authors":"H. Nakano, K. Sakata, J. Yamauchi","doi":"10.1109/IWAT.2016.7434825","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434825","url":null,"abstract":"Four metalines, the MTLc, MTLp, MTLn, and MTLpn, are presented. It is found that the MTLp and MTLn form a circularly polarized (CP) scanning beam with change in frequency, moving from the backward direction, through the broadside direction, to the forward direction (BBF scanning). The CP polarization is right-handed for the MTLp and left-handed for the MTLn. The remaining metalines, the MTLc and MTLpn, form a linearly polarized BBF scanning beam.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"57 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":"125762336","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
Compact line source generator for low profile continuous transverse stub array antenna 用于低轮廓连续横向短根阵列天线的紧凑型线源发生器
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434806
Peng-fei Zhang, R. Mittra, S. Gong
{"title":"Compact line source generator for low profile continuous transverse stub array antenna","authors":"Peng-fei Zhang, R. Mittra, S. Gong","doi":"10.1109/IWAT.2016.7434806","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434806","url":null,"abstract":"A compact Line Source Generator (LSG) consisting of a flat lens is proposed in this paper. The flat lens is used to transform a cylindrical wavefront generated by the horn to a planar wavefront which provides a uniform phase distribution in the output aperture. Unlike the conventional convex lens whose design is based on Geometrical Optics (GO), the flat lens is designed based on the Field Transformation (FT) method. By optimizing the permittivity of the center layer and two matching layers, the phase compensation for wavefront transformation is achieved, together with good impedance match over a wide band. A Continuous Transverse Stub (CTS) antenna with a low profile is designed by using the proposed LSG.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"35 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":"126981135","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 miniturized, circularly polarized log periodic dipole array 一种小型化的圆极化对数周期偶极子阵列
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434807
Joshua B Haney, Sungkyun Lim
{"title":"A miniturized, circularly polarized log periodic dipole array","authors":"Joshua B Haney, Sungkyun Lim","doi":"10.1109/IWAT.2016.7434807","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434807","url":null,"abstract":"A 10-element, size-reduced, circularly polarized log periodic dipole array antenna (CPLPDA) is presented by decreasing the length of the antenna elements in half using arc-shaped, top-loading structures. The simulated -10-dB impedance bandwidth is 106.5%, and the 3-dB axial ratio bandwidth is 110.4% Both bandwidths are matched well. The maximum realized gain in the direction of the shortest dipole is 7.1 dBic. Compared to a λ/2-element CPLPDA, the miniaturized CPLPDA has 75% volume reduction.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"54 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":"115383574","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
S-band continuously-tunable slot-ring antennas for reconfigurable antenna array applications 用于可重构天线阵列应用的s波段连续可调谐槽环天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434788
Tianjiao Li, Ma. Shirazi, X. Gong
{"title":"S-band continuously-tunable slot-ring antennas for reconfigurable antenna array applications","authors":"Tianjiao Li, Ma. Shirazi, X. Gong","doi":"10.1109/IWAT.2016.7434788","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434788","url":null,"abstract":"This paper presents a continuously-tunable single-polarized slot-ring antenna operating at S band. The frequency tunability is achieved by loading the slot-ring antenna with varactors. By properly designing the feeding network and biasing circuits, the slot-ring antenna is able to cover 2-4 GHz. A prototype antenna was fabricated and measured. The measured return loss is better than 9 dB from 2.66 to 4.09 GHz. The antenna gain and radiation pattern are very close to simulation results. This tunable slot-ring antenna can be extended for a reconfigurable antenna array to cover both L band and S band by strategically placing switches and varactors inside the slots of the antenna. This novel antenna array is able to change its frequency, polarization and radiation pattern.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"106 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":"122214842","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
A 2.45 GHz novel electrically small planar dipole antenna 一种2.45 GHz新型电小型平面偶极子天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434815
M. Wahib, Sébastien Clauzier, S. Mikki, Y. Antar
{"title":"A 2.45 GHz novel electrically small planar dipole antenna","authors":"M. Wahib, Sébastien Clauzier, S. Mikki, Y. Antar","doi":"10.1109/IWAT.2016.7434815","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434815","url":null,"abstract":"In this paper a novel electrically small planar dipole antenna operating at 2.45 GHz is proposed. This antenna exhibits small dimensions of 11.2×5.1×1.575 mm3 (0.09×0.04×0.01 λ03) which is considered to be one of the smallest ever reported footprints at this operating frequency. It has a simulated realized gain of 1.17 dBi along with an estimated efficiency of 87.4%. Due to the fact that ESAs are not self-resonant by nature, an impedance matching network has to be utilized to tune the antenna to resonate at the desired operating frequency. Three different matching approaches are studied in this paper. Finally, the antenna is modelled using the infinitesimal dipole model.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"135 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":"121145811","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
Performance improvement of stepped frequency UWB sensor for frequency interference 针对频率干扰的步进频率超宽带传感器性能改进
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434817
Shizuka Kuboyama, Nobuyasu Keya, A. Kajiwara
{"title":"Performance improvement of stepped frequency UWB sensor for frequency interference","authors":"Shizuka Kuboyama, Nobuyasu Keya, A. Kajiwara","doi":"10.1109/IWAT.2016.7434817","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434817","url":null,"abstract":"UWB sensor has recently attracted considerable attention for various consumer applications such as home security and vital-sign monitoring because it has anti-fading capability and the high range resolution. However, the commercialization causes a serious shortage of frequency resources in the RF spectrum. This paper suggests a stepped frequency UWB sensor which can coexist with other narrowband radio systems. The signal-processing algorithm is also presented to improve the signal degradation due to the spectrum hole. We fabricated the sensor system in order to investigate the usefulness and conducted the measurement for several scenarios.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"169 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":"124708127","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
A compact LTE antenna design for mobile device with full metal housing 一种紧凑的LTE天线设计，用于全金属外壳的移动设备
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434790
Peng-Su Chen, Ping Wang, Yumei Yu, Guangli Yang
{"title":"A compact LTE antenna design for mobile device with full metal housing","authors":"Peng-Su Chen, Ping Wang, Yumei Yu, Guangli Yang","doi":"10.1109/IWAT.2016.7434790","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434790","url":null,"abstract":"A compact LTE antenna is proposed to work for mobile phone with full metal housing. Antenna miniaturization and electromagnetic decoupling to metal housing are realized by a high band only antenna structure, feed matching inductor and two tunable techniques. The final antenna size is only 60×8×7 mm3 and measured bandwidth can cover LTE frequencies from 700-960 and 1710-2170 MHz. The free space measured efficiency is about 45% and 60% at low and high band, respectively. This antenna showed great potential for real phone application under metal housing environment.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"36 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":"127878349","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
Electromagnetic fields at the surface of human-body cylinders 人体圆柱体表面的电磁场
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434834
N. P. B. Kammersgaard, S. Kvist, J. Thaysen, K. Jakobsen
{"title":"Electromagnetic fields at the surface of human-body cylinders","authors":"N. P. B. Kammersgaard, S. Kvist, J. Thaysen, K. Jakobsen","doi":"10.1109/IWAT.2016.7434834","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434834","url":null,"abstract":"The electromagnetic fields around an infinitely long cylinder with different material parameters are analyzed. The cylinder is modeled as muscle, skin, fat, and perfect electric conductor respectively. The cylinder is illuminated by a plane wave incident from different angles and with both transverse electric and transverse magnetic polarization. The results show that the material assumption when modeling the human body as a homogeneous material is very important. Furthermore, it is shown that one assumption might lead to higher fields for a specific polarization, angle of incidence and frequency, but that does not translate to similar relative performance at another polarization, angle of incidence, and frequency.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"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":"128013683","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
"An electrically small loop antenna with usefully isotropic radiation and common mode feed" 具有有用的各向同性辐射和共模馈电的电小环形天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434812
Francis E. Parsche
{"title":"\"An electrically small loop antenna with usefully isotropic radiation and common mode feed\"","authors":"Francis E. Parsche","doi":"10.1109/IWAT.2016.7434812","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434812","url":null,"abstract":"An electrically small circular loop antenna with an isotropic radiation pattern to within ± 1.9 dBi is described. The scalable design operated at the 1575.42 Megahertz Global Positioning System L1 frequency. Means are provided to separately adjust driving resistance and reactance. Common mode currents radiate beneficially as part of loop structure. As the radiation pattern is sufficiently spherical, the design permits wireless systems to operate without aiming or orientation. Applications may include radio frequency identification (RFID) tags, radiolocation receivers, tumbling satellites or personal communications.","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":"115573807","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
Multiple-input multiple-output dynamic charging using multiple parallel line feeders 使用多个平行馈线的多输入多输出动态充电
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434837
William-Fabrice Brou, Duong Quang Thang, M. Okada
{"title":"Multiple-input multiple-output dynamic charging using multiple parallel line feeders","authors":"William-Fabrice Brou, Duong Quang Thang, M. Okada","doi":"10.1109/IWAT.2016.7434837","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434837","url":null,"abstract":"This paper proposes a multiple-input multiple-output dynamic charging system for electric vehicles (EVs) using more than one parallel line feeders and pick-ups. Indeed, it has been noticed that in the single parallel line feeding system with a single pick-up, the received power is subject to severe fluctuations due to the standing wave in the magnetic field all along the feeding line. Therefore, by employing multiple shifted parallel line feeders with multiple pick-ups, the proposed method benefits from a pattern diversity to overcome the standing wave issue and also gains from a multiplexing effect resulting in more stable and significantly improved output power. Supported by theoretical analysis, experiments on a system with three feeders and three pick-ups operating at the frequency of 13.56MHz demonstrate the effectiveness of the proposed method.","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":"116744970","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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