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2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)最新文献

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EVM and BER evaluation of C band new Airport surface communication systems C波段新机场地面通信系统的EVM和误码率评价
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958649
K. Morioka, N. Kanada, S. Futatsumori, J. Honda, A. Kohmura, N. Yonemoto, Y. Sumiya, D. Asano
{"title":"EVM and BER evaluation of C band new Airport surface communication systems","authors":"K. Morioka, N. Kanada, S. Futatsumori, J. Honda, A. Kohmura, N. Yonemoto, Y. Sumiya, D. Asano","doi":"10.1109/IWAT.2014.6958649","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958649","url":null,"abstract":"AeroMACS (Aeronautical Mobile Airport Communication System) is proposed for future airport surface communication system in the C band. In this paper, we report the results of an experiment at Sendai airport in Japan to evaluate the AeroMACS. Our base station covers the approximately 3km×1km rectangular airport surface with a transmitter power of 1W. A BER (Bit Error Rate) of less than 10-6 is required at the physical layer in order to realize reliable data communication systems. However, measurement of the BER is difficult especially in field experiments because another data link is required to inform the receiver of the correct transmitted symbols. Therefore, we calculate the relationship between EVM (Error Vector Magnitude) and BER by computer simulation, then translate the EVM which is measured in the experiment into BER. The results show that 64QAM-3/4 can be used with a BER of less than 10-6 in 64.3% of the LOS (Line Of Sights) area and 64QAM cannot be used in almost all NLOS (Non Line Of Sights) areas at Sendai airport.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124392550","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
Applications of circularly polarized crossed dipole antennas 圆极化交叉偶极子天线的应用
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958579
I. Park, S. Ta, Jea Jin Han, R. Ziolkowski
{"title":"Applications of circularly polarized crossed dipole antennas","authors":"I. Park, S. Ta, Jea Jin Han, R. Ziolkowski","doi":"10.1109/IWAT.2014.6958579","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958579","url":null,"abstract":"Circularly polarized crossed dipole antennas are presented in this paper. A compact crossed dipole is realized with the use of a meander line and a barbed end in each dipole arm. A vacant-quarter printed ring is used as a 90° phase delay line to achieve circularly polarized radiation. For multi-band applications, each dipole arm is divided into multi-branches with different lengths to obtain multiple resonances. These radiators can be equipped with different reflectors, such as a finite planar metallic conductor, a cavity-backed metallic conductor, and a finite artificial magnetic conductor to obtain the desired antenna radiation characteristics. These antennas are quite practical for many wireless communication systems, such as satellite communications, global positioning systems, wireless local area networks, and radio-frequency identification devices.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124605964","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
Dual-band VHF/UHF smartphone antenna for mobile digital television 用于移动数字电视的双频VHF/UHF智能手机天线
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958645
A. Weily, K. Smart, T. Bird
{"title":"Dual-band VHF/UHF smartphone antenna for mobile digital television","authors":"A. Weily, K. Smart, T. Bird","doi":"10.1109/IWAT.2014.6958645","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958645","url":null,"abstract":"A dual-band VHF/UHF antenna suitable for use with a portable media device is proposed. The antenna is designed to attach to a smartphone or tablet as a folding cover. It uses a capacitively-coupled element for the VHF antenna and a shorted dipole for the UHF antenna. A low-pass filter network couples the two antennas together so they can be fed from a single port. Applications of the antenna are for the reception of mobile digital television signals such as the ATSC M/H standards or DVB-H on portable media devices such as smartphones or tablets.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"447 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132649256","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
Metamaterial arrays and applications: FSS, EBG & AMC structures 超材料阵列及其应用:FSS, EBG和AMC结构
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958657
J. Vardaxoglou
{"title":"Metamaterial arrays and applications: FSS, EBG & AMC structures","authors":"J. Vardaxoglou","doi":"10.1109/IWAT.2014.6958657","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958657","url":null,"abstract":"Over the past decade, interest in applications metamaterials has grown explosively. The potential take-up of these structures in communication and sensing systems is primarily due to the control of the amplitudes, frequencies and wave-numbers of propagating and non-propagating electromagnetic modes to an extent that was not previously possible. The control of electromagnetic modes in various application fields such as indoor and outdoor communication systems, communicating mobile objects, transport systems (cruise liners and high-speed trains), space/earth communication and microelectronics (at μ-wave and mm-wave frequencies), can include the following aspects: controlling wave propagation; planar circuit miniaturization; waveguides/dispersive waveguides; enhanced filters; frequency selective reflection/transmission; antennas and antenna arrays; enhancing fields, near field imaging, high-Q cavities; negative refraction' tuneable materials; and high impedance layers/artificial materials.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132969075","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
Dual-band metaloop antenna 双频金属环天线
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958654
H. Nakano, K. Yoshida, J. Yamauchi
{"title":"Dual-band metaloop antenna","authors":"H. Nakano, K. Yoshida, J. Yamauchi","doi":"10.1109/IWAT.2014.6958654","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958654","url":null,"abstract":"This paper presents a metaloop antenna, which radiates a dual-band counter circularly-polarized (CP) wave. The antenna characteristics, including the radiation pattern, gain, and VSWR, are discussed. The radiation efficiency is also discussed. It is found that the gain increases by 3.5 dB for the left-handed CP wave and 4.8 dB for the right-handed CP wave, when the antenna height is changed from 1.6 mm to 3.2 mm. The VSWR is small within the gain bandwidth, as desired.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132358431","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
Unidirectional antenna with planar reflector for heart failure detection systems 用于心力衰竭检测系统的平面反射面单向天线
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958629
S. A. Rezaeieh, U. T. Ahmed, A. Abbosh
{"title":"Unidirectional antenna with planar reflector for heart failure detection systems","authors":"S. A. Rezaeieh, U. T. Ahmed, A. Abbosh","doi":"10.1109/IWAT.2014.6958629","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958629","url":null,"abstract":"A broadband monopole antenna with unidirectional radiation is presented. The antenna is specifically designed for microwave systems aimed at the detection of heart failure. A reflector is added to the ground plane of the antenna to both enhance the bandwidth and directivity of the antenna. By the carful design of the radiator and reflector, the antenna achieves a broad operating bandwidth of 35.5% over the operating frequency of 684-980 MHz, which is used for the microwave-based imaging system for heart failure detection. The antenna has a compact size of 0.22 λ × 0.22 λ (where λ is the wavelength of the first resonance of the antenna). It provides a maximum gain of 4.9 dBi at 980 MHz, a stable and unidirectional radiation pattern.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133236329","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
Compact pattern reconfigurable LTE antenna 紧凑方向图可重构LTE天线
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958599
J. Kowalewski, T. Mahler, C. Heine, T. Zwick
{"title":"Compact pattern reconfigurable LTE antenna","authors":"J. Kowalewski, T. Mahler, C. Heine, T. Zwick","doi":"10.1109/IWAT.2014.6958599","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958599","url":null,"abstract":"This paper presents a compact pattern reconfigurable antenna for automotive mobile systems. The presented antenna operates in the 2.6 GHz LTE band in Europe and is capable of switching between four different directivity patterns. The generated main beams for these four states are shifted by 90° in azimuth in respect to one another. The antenna elements can be switched between active state or reflector state with the use of PIN diodes. With the chosen construction the PIN diodes can be easily fed with the help of a coaxial bias-T and a simple feeding structure. The measurement results prove good performance and the suitability for use in LTE applications.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114514479","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
Implantable compact antennas for wireless bio-telemetry: A comparative study 植入式紧凑型无线生物遥测天线的比较研究
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958628
S. Islam, K. Esselle, D. Bull, P. Pilowsky
{"title":"Implantable compact antennas for wireless bio-telemetry: A comparative study","authors":"S. Islam, K. Esselle, D. Bull, P. Pilowsky","doi":"10.1109/IWAT.2014.6958628","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958628","url":null,"abstract":"This paper compares the performance of two compact implantable planar inverted-F antennas (I-PIFAs) designed to operate in the UHF ISM band around 900MHz. The total dimensions of Antenna 1 (Hilbert I-PIFA) and Antenna 2 (planar strip I-PIFA) are 25×33×7.6mm3 and 13.5× 11× 4.25mm3, respectively. A trade-off between the size, bandwidth and radiation efficiency is demonstrated. The larger antenna has a wider bandwidth as expected but both antennas operate well over the Australian ISM band. The radiation efficiencies of the two antennas, when implanted inside a rat, are 1.3% and 0.38%, respectively.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134536380","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
Design of dual-band frequency selective surface with miniaturized elements 小型化元件双频选择面设计
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958638
A. Ebrahimi, W. Withayachumnankul, S. Al-Sarawi, D. Abbott
{"title":"Design of dual-band frequency selective surface with miniaturized elements","authors":"A. Ebrahimi, W. Withayachumnankul, S. Al-Sarawi, D. Abbott","doi":"10.1109/IWAT.2014.6958638","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958638","url":null,"abstract":"A new dual-band frequency selective surface (FSS) is introduced in this paper. By having a miniaturized unit cell size, the proposed FSS transmission response shows minimal sensitivity to the angle of the incident electromagnetic wave. The two passband frequencies of the proposed configuration can be controlled independently by tunning the unit cell geometrical parameters appropriately. An equivalent circuit model analysis is presented to provide an insightful synthesis procedure for the filter. Full-wave numerical electromagnetic simulations are used to confirm the analysis and synthesis method presented based on the circuit model.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125858067","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: 24
Evaluation by scale model experiments for aeronautical MIMO systems effectiveness of channel capacity evaluation in 5.1GHz band 航空MIMO系统5.1GHz频段信道容量评估的比例模型试验评估
2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) Pub Date : 2014-03-04 DOI: 10.1109/IWAT.2014.6958650
N. Kanada, K. Morioka, Y. Sumiya, N. Yonemoto, M. Shioji, A. Kohmura, S. Futatsumori
{"title":"Evaluation by scale model experiments for aeronautical MIMO systems effectiveness of channel capacity evaluation in 5.1GHz band","authors":"N. Kanada, K. Morioka, Y. Sumiya, N. Yonemoto, M. Shioji, A. Kohmura, S. Futatsumori","doi":"10.1109/IWAT.2014.6958650","DOIUrl":"https://doi.org/10.1109/IWAT.2014.6958650","url":null,"abstract":"A new high-speed aeronautical MIMO system is currently being considered for airport communications. We evaluate effectiveness of scale model experiment by comparing MIMO channel capacities around an aircraft between actual and scale model systems. The channel capacities of the scale model indicate a similar tendency to the actual aircraft in the whole band of the communication systems. Therefore, scale model experiments are effective for evaluating aeronautical MIMO systems.","PeriodicalId":337951,"journal":{"name":"2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123769224","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
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