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2018 IEEE Conference on Antenna Measurements & Applications (CAMA)最新文献

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Study of Maturity Fruit Assessment using Permittivity and Microwave Reflectivity Measurements for Quality Classification 利用介电常数和微波反射率测量评价成熟果实品质的研究
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530481
S. Redzwan, M. Pérez, J. Velander, R. Augustine
{"title":"Study of Maturity Fruit Assessment using Permittivity and Microwave Reflectivity Measurements for Quality Classification","authors":"S. Redzwan, M. Pérez, J. Velander, R. Augustine","doi":"10.1109/CAMA.2018.8530481","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530481","url":null,"abstract":"This paper aims at the non-invasive analysis of fruit quality using Split Ring Resonator sensor and correlating the results with dielectric variations in the fruit due to ageing. The microwave split ring resonator sensor (SRR) is used differentiate between fresh and aged Red Grapefruit (Citrus Paradisi) over the frequency band ranging from 1–10 GHz over 1 day to 2 weeks measurement time points. A relative difference, in the mean epsilon (over 5 samples) values between the good and aged grapefruits, of 30% and 40% are found for the real and imaginary part of the permittivity respectively over the S-band frequency range. Corresponding shift in resonance frequency of SRR is also observed.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114188189","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: 10
Using Small Unmanned Aerial Systems and Helium Aerostats for Far-Field Radiation Pattern Measurements of High-Frequency Antennas 利用小型无人机系统和氦气浮空器进行高频天线远场辐射方向图测量
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530671
Joshua M. Miller, E. Decrossas
{"title":"Using Small Unmanned Aerial Systems and Helium Aerostats for Far-Field Radiation Pattern Measurements of High-Frequency Antennas","authors":"Joshua M. Miller, E. Decrossas","doi":"10.1109/CAMA.2018.8530671","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530671","url":null,"abstract":"A new methodology is described for performing near-free space far-field radiation pattern measurements of high frequency and very-high frequency antennas to be employed as part of the radar science instrument system onboard NASA’s planned Europa Clipper mission to Jupiter’s moon Europa. Adapted from land-based measurements, this test methodology involves hoisting the antenna under test using a helium-filled aerostat above the earth to minimize ground interactions while flying a small unmanned aerial system (sUAS) with onboard RF measurement equipment package to map the far field radiation pattern. Prior to testing the technique using both airborne platforms – the aerostat and the sUAS - measurements are performed on the ground using the sUAS and a fixed VHF dipole over a ground plane to verify the methodology prior to incorporating the flying aerostat for airborne measurements of the HF dipole. These initial measurements have produced promising far-field pattern results with work remaining to fully adapt the fixed VHF antenna measurements to the dynamic HF antenna test setup that uses two airborne platforms (sUAS and aerostat) for measurements.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115791476","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
Conductivity Estimation of Composite Materials Used on UAV Airframes 无人机机身复合材料电导率估算
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530642
J. Rosado-Sanz, M. Jarabo-Amores, D. Mata-Moya, P. Gomez-del-Hoyo, M. Benito-Ortiz
{"title":"Conductivity Estimation of Composite Materials Used on UAV Airframes","authors":"J. Rosado-Sanz, M. Jarabo-Amores, D. Mata-Moya, P. Gomez-del-Hoyo, M. Benito-Ortiz","doi":"10.1109/CAMA.2018.8530642","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530642","url":null,"abstract":"The problem of electromagnetic characterization of composite materials used for the airframe of aircrafts is considered. A measurement methodology is proposed for estimating the associated conductivity. This parameter is critical for the definition of antenna emplacement on the airframe keeping in mind the impact of the presence of the platform and other antenna systems on its performance. This is specially important in small size aircraft, as UAVs. Presented preliminary results are really promising. Specimens of PCN (Polymer-Clay Nanocomposite) material are used, which include metallic meshes for improving material performance against lightning.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125335303","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
Ultra-wide band antenna for partial discharge detection inside switchgear for on-line monitoring 用于开关柜局部放电检测的超宽带天线，用于在线监测
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530490
A. Marchal, M. Monedero, P. Le Thuc, R. Staraj
{"title":"Ultra-wide band antenna for partial discharge detection inside switchgear for on-line monitoring","authors":"A. Marchal, M. Monedero, P. Le Thuc, R. Staraj","doi":"10.1109/CAMA.2018.8530490","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530490","url":null,"abstract":"In this paper, a printed ultra-wide band (UWB) antenna with an asymmetric and folded design for partial discharge (PD) detection is presented. Different miniaturization methods have been used in order to facilitate its integration in a harsh and restricted environment like the metallic cavity of medium voltage switchgear. The final antenna dimensions are 122*57*43 mm3. It offers a wide measured bandwidth from 340 to 1750 MHz at -6dB.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121959590","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
Uncertainty Analysis for the Field Probe Calibration System in the anechoic chamber 暗室现场探头标定系统的不确定度分析
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530670
Dabo Li, Zhenfei Song, Donglin Meng
{"title":"Uncertainty Analysis for the Field Probe Calibration System in the anechoic chamber","authors":"Dabo Li, Zhenfei Song, Donglin Meng","doi":"10.1109/CAMA.2018.8530670","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530670","url":null,"abstract":"NIM had developed electric field probe calibrating system using horn antennas in a fully anechoic chamber from 1 GHz to 40 GHz. Take 26. 5GHz frequency as an example, the uncertainty measurement mode and analysis methods of several mainly uncertainty influence quantities are presented in this paper. In the end, we show the uncertainty analysis sheet and a comparison result between two measurement systems.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122169492","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
Development of Ultra-Wideband 500 MHz – 20GHz Human Skin Phantoms for Various Microwaves Based Biomedical Applications 用于各种微波生物医学应用的超宽带500mhz - 20GHz人体皮肤模型的开发
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530580
Laya Joseph, M. Pérez, R. Augustine
{"title":"Development of Ultra-Wideband 500 MHz – 20GHz Human Skin Phantoms for Various Microwaves Based Biomedical Applications","authors":"Laya Joseph, M. Pérez, R. Augustine","doi":"10.1109/CAMA.2018.8530580","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530580","url":null,"abstract":"In this paper we proposes an artificial tissue mimicking(TM) phantom for skin layer which mimics the physical and dielectric properties of human skin layer. We have fabricated a low coast, malleable and long lasting skin layer phantom.We have chosen semi solid type phantom for the skin layer. The size and thickness of the skin layer is chosen based on the average thickness of human tissue. Altering the ingredient composition wisely we can alter its dielectric properties also. The performance of the fabricated set of phantoms is carried out using an open-ended coaxial slim probe system by Agilent Technologies. We have developed some different sets of skin layers to analyze how its properties are varied depending on the ingredient composition. The different set of skin layers are tested at a frequency range of 500MHz-20GHz.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117299205","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
Pattern Reconfigurable Antenna Using A Functional Material for MMW Application 基于功能材料的毫米波方向图可重构天线
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530661
H. Wong, Qingyi Guo, Q. Lin, A. Crunteanu, L. Huitema
{"title":"Pattern Reconfigurable Antenna Using A Functional Material for MMW Application","authors":"H. Wong, Qingyi Guo, Q. Lin, A. Crunteanu, L. Huitema","doi":"10.1109/CAMA.2018.8530661","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530661","url":null,"abstract":"This paper introduces a novel reconfigurable antenna for controlling radiation beam direction by using integrated phase-change material (PCM). A PCM GeTe-based parasitic patch considered as a switchable element between insulator and conductive states is applied to operate with a driven patch radiator. The direction of the radiation pattern of the antenna can be tilted by changing the state of the GeTebased patch from its insulator to conductive state. Obtained resultshows that the proposed technique is effective to control the beam direction of the antenna. Around a 40° titled angle is achieved by the insulator-to-conductor activation of the GeTe patch which can be realized by an optical source, making the antenna simple and compact without extra bias circuit. Hence, the antenna is suitable for millimeter-wave applications.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128879420","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
Sensing Dielectric Scatterers by Means of The Born Iterative Method in the Contrast-Field Bayesian Compressive Sensing Framework 基于对比场贝叶斯压缩感知框架的Born迭代法检测介质散射体
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530590
M. Salucci, G. Oliveri, A. Massa
{"title":"Sensing Dielectric Scatterers by Means of The Born Iterative Method in the Contrast-Field Bayesian Compressive Sensing Framework","authors":"M. Salucci, G. Oliveri, A. Massa","doi":"10.1109/CAMA.2018.8530590","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530590","url":null,"abstract":"A novel method based on the contrast field formulation for imaging sparse scatterers is proposed in this paper. The inversion of the scattering data is achieved by means of a Bayesian Compressive Sensing $(BCS)$-based methodology developed within an iterative procedure where the non-linear problem is recast as a sequence of linear problems solved through a Relevance Vector Machine (RVM). Selected numerical examples are illustrated in order to evaluate the effectiveness of the presented approach, also in a comparative fashion with a state-of-the-art $(SoA)BCS$-based method based on the first order Born approximation,","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125577769","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
SAR Probe Calibration Using the Transmit Antenna Factor of the Small Dipole Antenna in Saline Solution 盐溶液中小偶极子天线发射天线系数对SAR探针的校正
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530502
N. Ishii, J. Chakarothai, K. Wake, L. Hamada, Soichi Watanabe
{"title":"SAR Probe Calibration Using the Transmit Antenna Factor of the Small Dipole Antenna in Saline Solution","authors":"N. Ishii, J. Chakarothai, K. Wake, L. Hamada, Soichi Watanabe","doi":"10.1109/CAMA.2018.8530502","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530502","url":null,"abstract":"In order to evaluate the specific absorption rate for wireless devices in the MHz band, we propose a method to estimate the electric field intensity generated by small dipole antenna in saline solution using the transmit antenna factor based on the power transfer formula and two antenna method. By introducing the average electric field intensity, we solve some problems caused by inappropriate approximation in our formulation. By comparing the results of numerical simulation and measurement, the validity of the distance property of the transmit antenna factor of the small dipole antenna in the solution is comfirmed. In addition, an example of probe calibration using the small dipole antenna based on our proposal is presented.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"471 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116187230","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
Toward Standard Near-Field Measurement Solutions for Stochastic Electromagnetic Fields 随机电磁场的标准近场测量解决方案
2018 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2018-09-01 DOI: 10.1109/CAMA.2018.8530455
B. Damienne, Kuznetsov Yury, W. Sidina, Thomas David, Russer Johannes, Russer Peter
{"title":"Toward Standard Near-Field Measurement Solutions for Stochastic Electromagnetic Fields","authors":"B. Damienne, Kuznetsov Yury, W. Sidina, Thomas David, Russer Johannes, Russer Peter","doi":"10.1109/CAMA.2018.8530455","DOIUrl":"https://doi.org/10.1109/CAMA.2018.8530455","url":null,"abstract":"This paper investigates directions towards standardization of Near-Field measurement solutions for stochastic electromagnetic fields. A proposal for standardization of Near-Field measurement of Stochastic Electromagnetic Fields led by the European COST Action 1407 is being initiated. An overview of Single-Probe, Dual-probe and Multi-Probe Array based measurements for deterministic fields is given and their capabilities and performances including test-time for industrial deployment are discussed. Importance of Field-Field correlation based analysis is underlined both from an experimental and modeling stand points and finally for combination of measurements and fullwave EM modeling.","PeriodicalId":112989,"journal":{"name":"2018 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122265007","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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