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

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Electrically-small wearable antennas for emergency services applications 用于紧急服务应用的电小型可穿戴天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434822
M. Orefice, P. Pirinoli, G. Dassano
{"title":"Electrically-small wearable antennas for emergency services applications","authors":"M. Orefice, P. Pirinoli, G. Dassano","doi":"10.1109/IWAT.2016.7434822","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434822","url":null,"abstract":"This paper presents the results of a study on electrically small wearable antennas, for use in emergency and security applications in the low UHF band, around 860 MHz. Realization of prototypes in textile materials has also been considered and implemented.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"94 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":"116425511","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 omni-directional electrically small helical antenna with high radiation efficiency 一种具有高辐射效率的全向电小螺旋天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434816
Lidong Huang, J. Xiong, Bing-Zhong Wang
{"title":"An omni-directional electrically small helical antenna with high radiation efficiency","authors":"Lidong Huang, J. Xiong, Bing-Zhong Wang","doi":"10.1109/IWAT.2016.7434816","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434816","url":null,"abstract":"In this paper, an electrically small helical antenna with segmented sections and tapered parallel plate transmission line with a 1800 swap as feeding has been proposed and studied. Due to the unique property of segmented structure, the proposed helical antenna allows uniform current along the radiator. Simulated results show the proposed the helical antenna has good impedance matching, high radiation efficiency, and excellent omni-directional circular radiation pattern.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"65 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":"131600559","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
Metamaterial magneto inductive lens for magnetic resonance imaging 磁共振成像用超材料磁感应透镜
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434824
S. Yeap, X. Qing, Zhi Ning Chen
{"title":"Metamaterial magneto inductive lens for magnetic resonance imaging","authors":"S. Yeap, X. Qing, Zhi Ning Chen","doi":"10.1109/IWAT.2016.7434824","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434824","url":null,"abstract":"A metamaterial magneto inductive lens is presented for the coil design in magnetic resonance imaging (MRI) applications, which is expected to enhance the magnetic field intensity of surface coils for improvement of the signal to noise ratio (SNR) of the MRI systems. The split-ring based lens is constructed into a pair of parallel two-dimensional arrays, that is, a metamaterial magneto inductive lens, providing minimum loading to the coil. Measurements show that the magnetic field intensity of the coil with metamaterial magneto inductive lens is improved about 2 dB at 295 MHz over a conventional coil at a distance of 10 mm, which is promising for pre-clinical study in a 7T MRI system at 300 MHz band.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"21 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":"131465009","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
3D printing technology: Enabling innovative & cost effective industrial antenna solution 3D打印技术:实现创新和成本效益的工业天线解决方案
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434799
F. Gianesello, A. Bisognin, D. Titz, C. Luxey, C. Fernandes, Jorge R. Costa, D. Gloria
{"title":"3D printing technology: Enabling innovative & cost effective industrial antenna solution","authors":"F. Gianesello, A. Bisognin, D. Titz, C. Luxey, C. Fernandes, Jorge R. Costa, D. Gloria","doi":"10.1109/IWAT.2016.7434799","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434799","url":null,"abstract":"The rapid growth of wireless data drives the development of new wireless technologies. We can have here in mind the current works on 5G standardization, wireless backhaul development in V/E Band, as well as low orbit mobile satellite service development in Ku band. For all those systems, the availability of high performance and cost effective antenna is key. To address this need, fundamental enablers lie in manufacturing technologies able to handle complex 3D shape while providing at the same time fast and low cost prototyping as well as the ability to support volume production. This talk will try to illustrate how 3D printing and digital manufacturing technologies can help to develop innovative and cost effective antennas in order to address new wireless businesses challenges.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"1 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":"129831197","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: 8
A printed UWB antenna with full ground plane for WBAN applications 用于WBAN应用的全地平面印刷UWB天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434821
R. Simorangkir, S. M. Abbas, K. Esselle
{"title":"A printed UWB antenna with full ground plane for WBAN applications","authors":"R. Simorangkir, S. M. Abbas, K. Esselle","doi":"10.1109/IWAT.2016.7434821","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434821","url":null,"abstract":"In this paper, an ultra-wideband (UWB) antenna based on an inherently narrowband microstrip technology is proposed for wireless body area network (WBAN) applications. UWB performance extending from 4 to 9.5 GHz is obtained by applying several bandwidth enhancement techniques to the radiator printed on the upper surface of a substrate while maintaining a full ground plane on the lower surface of the substrate. A study has been conducted through simulations in both free space and close proximity to frequency dependent homogeneous human muscle-equivalent phantoms to determine the human body's effects on the performances of the antenna. The results reveal that the antenna is robust against both human body loading and structural deformation, and has a less impact on body tissues, indicating a very promising candidate for body-worn applications.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"70 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":"128120547","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
Optically addressed ultra-wideband connected array antenna 光寻址超宽带连接阵列天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434844
Dylan D. Ross, Matthew R. Konkol, S. Shi, D. Prather
{"title":"Optically addressed ultra-wideband connected array antenna","authors":"Dylan D. Ross, Matthew R. Konkol, S. Shi, D. Prather","doi":"10.1109/IWAT.2016.7434844","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434844","url":null,"abstract":"Modern RF antenna systems are being asked to address many simultaneous and pressing challenges, e.g., wide operational bandwidth, dynamic gain patterns, and conformal profiles. One way to address these problems is to develop a low profile and ultra-wideband (UWB) phased array antenna. However, the design, fabrication, and integration of such an array using an all-RF feed is exceedingly difficult. Thus, in this paper we present a novel optical feeding technique to achieve efficient excitation of a UWB connected array (CA) antenna. By feeding the array optically, preservation of the theoretical bandwidth and low-profile of elementary connected dipole elements is enabled. Coupling of light to a photodiode merely requires enough space to firmly secure a fiber ferrule, allowing for the population of more densely packed arrays and wider operational bandwidth. Additionally, the optical feeding of the array can provide low noise excitation of the radiating elements, which supports high fidelity beam steering of independent signals over the array's ultra-wide bandwidth. Currently all of these abilities are unattainable by conventional electronic feeding networks. Previously the main limiting factor for the realization of such an optical system was the low power handling capability of the photodiode at the antenna excitation point. Recently, however, modified uni-travelling carrier (MUTC) photodiodes, flip-chip bonded to high-thermal conductivity aluminum nitride (AlN), have been able to achieve output powers of over 1 W at 10 GHz under CW operation, and over 10 W using pulsed power modulation. A prototype MUTC photodiode-integrated antenna array on AlN with direct fiber feed to each antenna element is discussed and demonstrated that can provide 5-20 GHz bandwidth and a size, weight, and power (SWaP) superior to conventional electronic phased array systems.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"110 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":"127984481","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
Condition number variability of ultra wideband MIMO on body channels 体信道上超宽带MIMO的条件数可变性
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434833
Q. Abbasi, Hassan El Sallabi, E. Serpedin, K. Qaraqe, A. Alomainy
{"title":"Condition number variability of ultra wideband MIMO on body channels","authors":"Q. Abbasi, Hassan El Sallabi, E. Serpedin, K. Qaraqe, A. Alomainy","doi":"10.1109/IWAT.2016.7434833","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434833","url":null,"abstract":"This paper presents, condition number (CN) variability of ultra wideband 2 × 2 multiple-input-multiple-output (MIMO) on-body channels for four different links namely; waist-to-wrist, waist-to-back, waist-to-chest and waist-to-ankle. The relationship between condition number, capacity and signal to noise ratio is studied and results indicate that for fixed value of signal to noise ratio (SNR), the capacity decreases with increasing CN, whereas for fixed values of capacity, SNR increases with CN. For high SNR (> 8 dB), the correlation becomes negative, which means that for the fixed CN, the capacity increases with increasing SNR.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"70 4 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":"128244927","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
Frequency-reconfigurable single-layer design of microstrip patch electrically-steerable parasitic array radiator(ESPAR) 微带贴片电控寄生阵列散热器(ESPAR)单层频率可重构设计
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434829
Ouyang Wei, X. Gong
{"title":"Frequency-reconfigurable single-layer design of microstrip patch electrically-steerable parasitic array radiator(ESPAR)","authors":"Ouyang Wei, X. Gong","doi":"10.1109/IWAT.2016.7434829","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434829","url":null,"abstract":"A novel frequency-reconfigurable ESPAR phased array antenna with beamsteering capability is presented in this paper. ESPAR antennas can realize beam scanning by dynamically changing the load impedance of the parasitic antenna element or the coupling capacitance between the driven and parasitic antennas. However, current ESPAR antennas lack the frequency tuning capability and therefore the useful frequency range is limited. Herein a frequency-reconfigurable ESPAR antenna is realized by providing frequency control on both driven and parasitic antenna elements. In full-wave simulations, it is shown that this ESPAR phased array antenna is able to change its resonant frequency from 0.87 to 0.95 GHz, which significantly extends the frequency range from a frequency-fixed ESPAR. In addition, at each operation frequency, this ESPAR is able to steer the beam from -20 to 20 degree, which is comparable to the beamsteering range of a frequency-fixed ESPAR.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"9 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":"117330801","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
Concept of substrate integrated E-plane waveguide and waveguide filter 基板集成e平面波导和波导滤波器的概念
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434841
Danyang Huang, X. Wu, Qun Zhang
{"title":"Concept of substrate integrated E-plane waveguide and waveguide filter","authors":"Danyang Huang, X. Wu, Qun Zhang","doi":"10.1109/IWAT.2016.7434841","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434841","url":null,"abstract":"A novel substrate integrated E-plane waveguide is proposed. It is used to implement E-plane type of waveguide circuits on printed circuit boards which cannot be accomplished by the conventional substrate integrated waveguide. The new waveguide structure has two copper strips at the middle layer of the substrate. The strips follow the directions of the plated through holes that emulate the vertical wall of a conventional rectangular waveguide. Each strip provides a path for the longitudinal current along the vertical waveguide wall. Simulation is carried out to demonstrate that the proposed waveguide is able to guide horizontally polarized electromagnetic wave. As an example, an E-plane waveguide filter is designed based on the new waveguide structure.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"175 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":"114377685","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: 11
A combination of Alamouti code and beamforming technologies via dual-polarized antenna array systems Alamouti码和波束形成技术通过双极化天线阵列系统的组合
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434819
Xin Su, Xiaofeng Liu, Xiaochun Lu, Cheng Luo
{"title":"A combination of Alamouti code and beamforming technologies via dual-polarized antenna array systems","authors":"Xin Su, Xiaofeng Liu, Xiaochun Lu, Cheng Luo","doi":"10.1109/IWAT.2016.7434819","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434819","url":null,"abstract":"In conventional design works relevant to antennae transmission, the space-time block coding (STBC) and beamforming (BF) gains could not be achieved at the same time usually. This is mainly due to the STBC performs well under a low correlated channel environment; BF technologies, on the other hand, works efficiently when the multi-input multi-output (MIMO) channels are highly correlated. In order to boost the system performance, in this paper, we propose a novel MIMO architecture to exploit STBC, e.g. Alamouti code, and BF technologies simultaneously. The antenna array systems associated with polarization have potential to obtain gains for both techniques because the cross-branch links in the system usually are not correlated; and the cross-array links could be highly correlated by setting a small array element distance, i.e. equal to or less than a half-wavelength. Finally, the efficiency of our proposed architecture is validated via computer simulations.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"227 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":"122617878","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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