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

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Dual-band leaky-wave antenna based on a dual-layer frequency selective surface for bi-directional satcom-on-the-move in Ka-band 基于双层选频面的ka波段双向移动卫星双频漏波天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434791
A. Krauss, H. Bayer, R. Stephan, M. Hein
{"title":"Dual-band leaky-wave antenna based on a dual-layer frequency selective surface for bi-directional satcom-on-the-move in Ka-band","authors":"A. Krauss, H. Bayer, R. Stephan, M. Hein","doi":"10.1109/IWAT.2016.7434791","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434791","url":null,"abstract":"A 2D-periodic leaky-wave antenna for a Ka-band satcom-on-the-move ground user terminal is presented. The antenna panel operates at the 20 GHz downlink as well as the 30 GHz uplink bands with the respective circular polarizations, using a common radiation aperture and a common phase centre. The dual-band performance is achieved by a carefully designed stacked dual-layer frequency selective surface, with one layer operating at 20 GHz and being transparent at 30 GHz, and the second layer acting vice versa. The paper describes the design of the circularly polarized primary feed, the dual-layer structures, and the complete compact leaky-wave antenna panel. The measured radiation performance reveals realized-gain values above 22 dBi and efficiencies above 60%. The cross-polarization discrimination and sidelobe level are suitable to meet the power spectral requirements for satellite communications at Ka-band.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"191 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":"132716229","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
High data rate multi-path transmit/receive system with on-site coding 现场编码的高数据速率多路径收发系统
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434843
E. Alwan, Dimitrios Siafarikas, J. Volakis
{"title":"High data rate multi-path transmit/receive system with on-site coding","authors":"E. Alwan, Dimitrios Siafarikas, J. Volakis","doi":"10.1109/IWAT.2016.7434843","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434843","url":null,"abstract":"We propose a new class of transceivers operating over large bandwidths on the order of 10 GHz using ultra-wideband phased arrays. Specifically, a novel coding approach that combines frequency and code multiplexing is proposed. This is essential for secure communications and interference mitigation and for accessing such large bandwidths. Equally important is power reduction. For the latter, a low power on-site coding beamforming is proposed to reduce power requirements for the digitizers by a factor of 10 to 32. In this paper, we present a description of the proposed high data system. Also, a noise analysis is conducted to assess the impact of coding on the system's noise floor. Preliminary results show minimal degradation using orthogonal Walsh-Hadamard codes with ideal filters and a minimum digitizer resolution of 5 bits.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"94 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":"115667078","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
Microwave Doppler tomography of high impedance ground planes for aerospace applications 航空航天高阻抗地平面的微波多普勒层析成像
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/iwat.2016.7434793
K. Nicholson, T. Baum, K. Ghorbani, R. Ziolkowski
{"title":"Microwave Doppler tomography of high impedance ground planes for aerospace applications","authors":"K. Nicholson, T. Baum, K. Ghorbani, R. Ziolkowski","doi":"10.1109/iwat.2016.7434793","DOIUrl":"https://doi.org/10.1109/iwat.2016.7434793","url":null,"abstract":"Recent developments in the areas of metamaterials and high impedance ground planes (HIGPs) have created new opportunities for the development of novel multi-functional aerospace materials. One niche application of such materials is the suppression of electromagnetic surface waves across the outer mold line (OML) of aerospace structures. Doppler tomographic imaging and spectral filtering techniques are used to characterize the performance of a simple numerically simulated HIGP. A tapered HIGP concept is introduced to improve the performance over a range of illumination angles. This tapered HIGP is to be embroidered in a commercial aerospace pre-preg material. Experimental results will be presented at the conference.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"33 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":"130779501","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
Highly integrated VO2-based antenna for frequency tunability at millimeter-wave frequencies 高度集成的基于vo2的毫米波频率可调谐天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434795
L. Huitema, A. Crunteanu, H. Wong
{"title":"Highly integrated VO2-based antenna for frequency tunability at millimeter-wave frequencies","authors":"L. Huitema, A. Crunteanu, H. Wong","doi":"10.1109/IWAT.2016.7434795","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434795","url":null,"abstract":"We report the monolithic integration of a metal-insulator material (vanadium dioxide, VO2) for realizing a frequency tunable antenna operating around 30 GHz. The design of the device is based on a slot antenna excited by a microstrip line having a length that can be conveniently varied using a VO2-based switch. Compared to existing commercial solutions, the proposed switches show better electrical properties at high frequencies, with low losses (<;1 dB) and high isolation (>20 dB) up to 40 GHz. The simulation shows that the antenna can be tunable around 30 GHz, with discrete frequency operation while being highly integrated.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"11 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":"126667689","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: 9
A microfluidically switched feed network for beam-scanning focal plane arrays 一种用于光束扫描焦平面阵列的微流控开关馈电网络
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434784
E. González, G. Mumcu
{"title":"A microfluidically switched feed network for beam-scanning focal plane arrays","authors":"E. González, G. Mumcu","doi":"10.1109/IWAT.2016.7434784","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434784","url":null,"abstract":"A microfluidically switched feed network is designed for beam-scanning focal plane arrays by utilizing a selectively metallized plate within the microfluidic channel. As compared to the prior work that microfluidically repositioned a patch antenna element behind the lens for beam-scanning, the presented feed network approach is shown to provide higher efficiency and bandwidth performance. The design is carried out at Ka-Band (30 GHz) for an aperture coupled patch antenna array located at the focal plane of an extended hemispherical dielectric lens.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"1 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":"131199120","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
Reconfigurable double slot-ring antenna for bandwidth enhancement 可重构双槽环天线，增强带宽
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434787
Ma. Shirazi, Tianjiao Li, X. Gong
{"title":"Reconfigurable double slot-ring antenna for bandwidth enhancement","authors":"Ma. Shirazi, Tianjiao Li, X. Gong","doi":"10.1109/IWAT.2016.7434787","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434787","url":null,"abstract":"A reconfigurable single slot-ring antenna is able to switch between S and C bands using PIN diode switches. However, the fractional bandwidth of this single slot-ring antenna at lower band is narrow (11.4%). In this paper, four additional slots are added to form a double slot-ring antenna at the lower band. As a result, the antenna fractional bandwidth at the lower band is significantly enhanced from 11.4% to 28.2%, while the antenna performance at higher band is not compromised. Full-wave simulations show that the antenna efficiency is high and the radiation patterns do not change across each respective frequency band.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"45 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":"115093793","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
Home security monitoring based stepped-FM UWB 基于步进调频超宽带的家庭安全监控
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434839
Yuta Jitsui, A. Kajiwara
{"title":"Home security monitoring based stepped-FM UWB","authors":"Yuta Jitsui, A. Kajiwara","doi":"10.1109/IWAT.2016.7434839","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434839","url":null,"abstract":"This paper presents the effectiveness of stepped-FM UWB home security sensor. UWB sensor has attracted considerable attention it can be expected to detect human body in a home, not room. Then a few schemes had been suggested to detect an intruder in home or room. However, it is important to detect an intruder prior to breaking in the house. This paper suggests a UWB sensor which can detect not only intruder, but also stranger intruding into a house. It can also estimate the intrusion port (window). The measurements were conducted under five scenarios using our fabricated sensor system installed inside a typical four-room apartment house.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"40 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":"130950957","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
BST thin film capacitors integrated within a frequency tunable antenna 集成在频率可调天线内的BST薄膜电容器
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434796
M. Rammal, L. Huitema, A. Crunteanu, D. Passerieux, D. Cros, T. Monediere, V. Madrangeas, P. Dutheil, C. Champeaux, F. Dumas-Bouchiat, P. Marchet, L. Nedelcu, L. Trupina, G. Banciu, M. Cernea
{"title":"BST thin film capacitors integrated within a frequency tunable antenna","authors":"M. Rammal, L. Huitema, A. Crunteanu, D. Passerieux, D. Cros, T. Monediere, V. Madrangeas, P. Dutheil, C. Champeaux, F. Dumas-Bouchiat, P. Marchet, L. Nedelcu, L. Trupina, G. Banciu, M. Cernea","doi":"10.1109/IWAT.2016.7434796","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434796","url":null,"abstract":"Ferroelectric (FE) thin film varactors can be a convenient technology for tuning miniature antennas. In this paper we present the design of a compact, agile, wire patch antenna integrating barium strontium titanate (Ba(1-x)SrxTiO3, BST) thin film interdigitated capacitors (IDC). The IDCs values were measured at different temperatures and bias voltages ranging from 0 to 120 V showing a capacitance variation of more than 40% between 11-13 GHz and up to 28% in the 2-3 GHz frequency interval. Their integration within a compact antenna design allows tuning its operating frequency on the whole WiFi band, with efficiencies higher than 70%.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"8 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":"130434210","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
Parametric study of the effect of annular slot on the operating frequency of solid cone antenna 环形缝隙对实心圆锥天线工作频率影响的参数化研究
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434805
O. Agunlejika, J. Flint, R. Seager
{"title":"Parametric study of the effect of annular slot on the operating frequency of solid cone antenna","authors":"O. Agunlejika, J. Flint, R. Seager","doi":"10.1109/IWAT.2016.7434805","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434805","url":null,"abstract":"The concept of adding slots to solid cone antenna is described in this paper. Effects of slot-depth, slot-width and slot-position on the operating frequency of the conical antenna are investigated. Annular slots on the antenna produced stopbands with anti-resonant frequencies that are inversely proportional to the depth of the slots such that deeper slot produced anti-resonance at lower frequency band while the relatively shallow slot produced anti-resonance in a higher frequency band. The increase in the slot-width caused a corresponding increase in the bandwidth of the stopband but the slot-depth has a stronger effect on the operating frequency of the cone. Prototype antennas were fabricated and measured to verify the simulated results.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"17 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":"114609023","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 pattern reconfigurable antenna utilizing multiple monopoles 利用多个单极子的紧凑方向图可重构天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-03-17 DOI: 10.1109/IWAT.2016.7434783
J. Kowalewski, Jonathan Mayer, T. Mahler, T. Zwick
{"title":"A compact pattern reconfigurable antenna utilizing multiple monopoles","authors":"J. Kowalewski, Jonathan Mayer, T. Mahler, T. Zwick","doi":"10.1109/IWAT.2016.7434783","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434783","url":null,"abstract":"A reconfigurable antenna for optimal radiation patterns used for automotive urban scenarios is proposed in this paper. The antenna is anticipated to radiate in the best sub-channels obtained from a channel simulation. The antenna consist of two serially fed monopoles placed on one substrate. The pattern switching is realized by changing the phase of the feeding signal. Thus, two directional patterns are realized, whereby the first is in and opposite the driving direction and the second is shifted by 90° in azimuth, thus orthogonal to the driving direction. The chosen frequency of operation is 2.45 GHz. As a proof of concept two prototypes of the antenna, one utilizing p-i-n diodes and one using MEMS (micro-electro-machanical switch) as switching elements have been fabricated and measured. The maximum gain achieved is about 5 dBi. The measurement results show that only slight improvement is achieved if MEMS are used instead of p-i-n diodes.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"38 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":"130734166","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
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