Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003449
D. V. van Rensburg, S. Gregson
This paper describes an articulated arm spherical near-field scanner design which transports a probe over a hyper-hemispherical surface that surrounds a stationary test antenna. Surface profile data collected with a laser tracker is presented and a parametric study performed to investigate the viability of testing at mm-wave frequencies is described. Parameters such as probe radial distance, and angular positioning are investigated to assess to what extent spherical near-field testing can be performed using this structure.
{"title":"Parametric study of probe positioning errors in articulated spherical near-field test systems for mm-wave applications","authors":"D. V. van Rensburg, S. Gregson","doi":"10.1109/CAMA.2014.7003449","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003449","url":null,"abstract":"This paper describes an articulated arm spherical near-field scanner design which transports a probe over a hyper-hemispherical surface that surrounds a stationary test antenna. Surface profile data collected with a laser tracker is presented and a parametric study performed to investigate the viability of testing at mm-wave frequencies is described. Parameters such as probe radial distance, and angular positioning are investigated to assess to what extent spherical near-field testing can be performed using this structure.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124671862","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003418
S. Varault, X. Begaud, A. Lepage, M. Soiron, A. Barka
We present the first part of a study supported by the French Ministry of Defense, entitled SAFAS, which aims at developing a low profile self-complementary radiating surface with low signature. This surface concept is intended to be used for antenna and absorber designs. We show some preliminary results for an antenna array required to work for incidences up to 60° over an ultra-wide frequency band with ratio 5:1.
{"title":"Self-complementary antenna array with low signature","authors":"S. Varault, X. Begaud, A. Lepage, M. Soiron, A. Barka","doi":"10.1109/CAMA.2014.7003418","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003418","url":null,"abstract":"We present the first part of a study supported by the French Ministry of Defense, entitled SAFAS, which aims at developing a low profile self-complementary radiating surface with low signature. This surface concept is intended to be used for antenna and absorber designs. We show some preliminary results for an antenna array required to work for incidences up to 60° over an ultra-wide frequency band with ratio 5:1.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124798182","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003364
A. Polo, F. Viani, A. Massa, A. Zorer, S. Marchesi, L. Zappini
Fleet management is actually a very hot topic in development and research. Modern organizations such as goods transportation companies and emergency/security agencies need to track and coordinate their resources in real-time, typically for supporting control-center officers and optimizing the overall planning. This kind of tools are called decision support systems. This paper introduces the architecture and features of an integrated tool designed to support advanced positioning functionalities (i.e., location validation, prediction, accuracy support, indirect location) and to acquire and exploit heterogeneous geo-referenced data-sources distributed on the territory, such as traffic and weather monitoring stations. The proposed framework integrates a reasoning engine that resolves inverse problems by means of optimization algorithms, such as ANT colony optimization and particle swarm optimizer. The tool is under validation by dozen of fire-fighters units and at the Centrale Unica Emergenza (CUE) agency for centralized emergency management of the Autonomous Province of Trento, Italy.
{"title":"Advances in decision-making support tools for fleet management in emergency and security applications","authors":"A. Polo, F. Viani, A. Massa, A. Zorer, S. Marchesi, L. Zappini","doi":"10.1109/CAMA.2014.7003364","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003364","url":null,"abstract":"Fleet management is actually a very hot topic in development and research. Modern organizations such as goods transportation companies and emergency/security agencies need to track and coordinate their resources in real-time, typically for supporting control-center officers and optimizing the overall planning. This kind of tools are called decision support systems. This paper introduces the architecture and features of an integrated tool designed to support advanced positioning functionalities (i.e., location validation, prediction, accuracy support, indirect location) and to acquire and exploit heterogeneous geo-referenced data-sources distributed on the territory, such as traffic and weather monitoring stations. The proposed framework integrates a reasoning engine that resolves inverse problems by means of optimization algorithms, such as ANT colony optimization and particle swarm optimizer. The tool is under validation by dozen of fire-fighters units and at the Centrale Unica Emergenza (CUE) agency for centralized emergency management of the Autonomous Province of Trento, Italy.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123920652","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003349
Cyril Buey, K. Bashir, J. Fargeas, P. Ratajczak, L. Trinh, F. Ferrero
In this paper, the design of an MIMO antenna system for WIFI gateway application is proposed. 8 printed monopole dual band antennas are placed on a 135×135mm2 FR-4 PCB. Placement of the elements is optimized to limit coupling effect. The objective of the system is to combine the MIMO technique and antenna diversity to increase data rate performance. S-Parameters and radiation performances are presented. A new measurement method based on EVM and BER criteria is proposed to characterize the antenna system in a realistic environment.
{"title":"Design of a dual-band MIMO WIFI gateway","authors":"Cyril Buey, K. Bashir, J. Fargeas, P. Ratajczak, L. Trinh, F. Ferrero","doi":"10.1109/CAMA.2014.7003349","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003349","url":null,"abstract":"In this paper, the design of an MIMO antenna system for WIFI gateway application is proposed. 8 printed monopole dual band antennas are placed on a 135×135mm2 FR-4 PCB. Placement of the elements is optimized to limit coupling effect. The objective of the system is to combine the MIMO technique and antenna diversity to increase data rate performance. S-Parameters and radiation performances are presented. A new measurement method based on EVM and BER criteria is proposed to characterize the antenna system in a realistic environment.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125534694","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003329
C. Hua, Zhenxin Hu, Z. Shen
This paper introduces two types of reconfigurable water antennas. One is a water-grating leaky-wave antenna and the other is a sea-water monopole antenna. The water-grating leaky-wave antenna consists of a parabolic reflecting surface-wave launcher and a periodic water-grating structure, which is designed for wide-angle beam-scanning. While the sea-water monopole antenna mainly comprises of a Teflon container and a sea-water stream supplied by a water pump, which is very suitable for maritime wireless communications.
{"title":"Reconfigurable water antennas","authors":"C. Hua, Zhenxin Hu, Z. Shen","doi":"10.1109/CAMA.2014.7003329","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003329","url":null,"abstract":"This paper introduces two types of reconfigurable water antennas. One is a water-grating leaky-wave antenna and the other is a sea-water monopole antenna. The water-grating leaky-wave antenna consists of a parabolic reflecting surface-wave launcher and a periodic water-grating structure, which is designed for wide-angle beam-scanning. While the sea-water monopole antenna mainly comprises of a Teflon container and a sea-water stream supplied by a water pump, which is very suitable for maritime wireless communications.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129476686","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003453
M. Guardiola, S. Buitrago, J. Romeu, L. Jofre
Microwave tomography is proposed for medical diagnosis using Magnitude Combined tomographic algorithm. A proof-of-concept experimental system was build and an in-homogeneous breast phantom with a tumor embedded was successfully reconstructed in less than 30 seconds per frequency. The motivation for this study is the future development of an imaging prototype for head imaging.
{"title":"Towards microwave system for real-time medical imaging","authors":"M. Guardiola, S. Buitrago, J. Romeu, L. Jofre","doi":"10.1109/CAMA.2014.7003453","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003453","url":null,"abstract":"Microwave tomography is proposed for medical diagnosis using Magnitude Combined tomographic algorithm. A proof-of-concept experimental system was build and an in-homogeneous breast phantom with a tumor embedded was successfully reconstructed in less than 30 seconds per frequency. The motivation for this study is the future development of an imaging prototype for head imaging.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129491953","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003324
H. Halheit, R. Touhami, A. Vorst, S. Tedjini, T. Vuong
Hyperthermia is a cancer treatment method used in combination with the classical therapies for enhancing the temperature of cancerous cells. In this paper we present a simple method to obtain an enhancement of the SAR (Specific Absorption Rate), which is one of the requirements to achieve a good thermotherapy treatment. By using the CST Microwave Studio software, the dependence of the maximum local SAR on the rectangular microstrip antenna radiator width is evaluated. It is shown that the maximum local SAR increases as the width of the patch decreases without reducing the electrical performance of the designed applicator.
{"title":"Effect of microstrip rectangular radiator width on SAR for local hyperthermia","authors":"H. Halheit, R. Touhami, A. Vorst, S. Tedjini, T. Vuong","doi":"10.1109/CAMA.2014.7003324","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003324","url":null,"abstract":"Hyperthermia is a cancer treatment method used in combination with the classical therapies for enhancing the temperature of cancerous cells. In this paper we present a simple method to obtain an enhancement of the SAR (Specific Absorption Rate), which is one of the requirements to achieve a good thermotherapy treatment. By using the CST Microwave Studio software, the dependence of the maximum local SAR on the rectangular microstrip antenna radiator width is evaluated. It is shown that the maximum local SAR increases as the width of the patch decreases without reducing the electrical performance of the designed applicator.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121604582","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003333
H. Arai, N. Ishii
This paper presents measurement techniques to reduce sampling points in Total Radiated Power (TRP) measurement by spherical scanned probes. For the sampling point reduction, this paper presents modified equi-angle to eliminate the effect of metric coefficient and generalized spiral scanning to pick up measured data uniformly. Data reduction rate is discussed by the measurement results. In addition, a partially spherical scanning is presented for the radiation power measurement only.
{"title":"Sampling points reduction in spherical scanned TRP measurement","authors":"H. Arai, N. Ishii","doi":"10.1109/CAMA.2014.7003333","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003333","url":null,"abstract":"This paper presents measurement techniques to reduce sampling points in Total Radiated Power (TRP) measurement by spherical scanned probes. For the sampling point reduction, this paper presents modified equi-angle to eliminate the effect of metric coefficient and generalized spiral scanning to pick up measured data uniformly. Data reduction rate is discussed by the measurement results. In addition, a partially spherical scanning is presented for the radiation power measurement only.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127087820","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003456
C. Guérin, O. Boisot, S. Pioch, A. Bringer, G. Caulliez, C. Fatras, P. Borderies, J. Lalaurie
We present some recent progresses in the characterization of Ka-band radar return from water surfaces when observed at small incidence. We report on a radar experiment conducted at the large Pytheas wind-wave facility in Marseille and provide associated models. We consider the applicability of the results to natural oceanic and continental surfaces and show some specific properties of the sea clutter in the latter case.
{"title":"Ka-band radar scattering in a wind-wave tank","authors":"C. Guérin, O. Boisot, S. Pioch, A. Bringer, G. Caulliez, C. Fatras, P. Borderies, J. Lalaurie","doi":"10.1109/CAMA.2014.7003456","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003456","url":null,"abstract":"We present some recent progresses in the characterization of Ka-band radar return from water surfaces when observed at small incidence. We report on a radar experiment conducted at the large Pytheas wind-wave facility in Marseille and provide associated models. We consider the applicability of the results to natural oceanic and continental surfaces and show some specific properties of the sea clutter in the latter case.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116652278","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}
Pub Date : 2014-11-01DOI: 10.1109/CAMA.2014.7003370
G. Virone, F. Paonessa, O. Peverini, G. Addamo, R. Orta, R. Tascone, P. Bolli
A new antenna pattern verification system based on a flying far-field source has been recently developed [1]. It performs the antenna validation considering the measured received power level at the antenna port. This paper discusses the deembedding procedure that is used to obtain the antenna pattern from such measured data. The measured radiation patterns of a log-periodic antenna operating at 408 MHz are found in good agreement with the full-wave predictions.
{"title":"Antenna pattern measurements with a flying far-field source (Hexacopter)","authors":"G. Virone, F. Paonessa, O. Peverini, G. Addamo, R. Orta, R. Tascone, P. Bolli","doi":"10.1109/CAMA.2014.7003370","DOIUrl":"https://doi.org/10.1109/CAMA.2014.7003370","url":null,"abstract":"A new antenna pattern verification system based on a flying far-field source has been recently developed [1]. It performs the antenna validation considering the measured received power level at the antenna port. This paper discusses the deembedding procedure that is used to obtain the antenna pattern from such measured data. The measured radiation patterns of a log-periodic antenna operating at 408 MHz are found in good agreement with the full-wave predictions.","PeriodicalId":409536,"journal":{"name":"2014 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132366127","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}
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