Pub Date : 2016-06-26DOI: 10.1109/APS.2016.7696760
I. Fenni, Z. Haddad, H. Roussel, R. Mittra
The Characteristic Basis Function Method (CBFM) is applied to a 3D full-wave model, in conjunction with the volume-integral equation formulation (VIEF), in the frequency range of 1-35 GHz to calculate the electromagnetic scattering properties of complex-shaped precipitation particles in an efficient and accurate manner. Preliminary results derived by the use of the new approach are shown to be in good agreement with those obtained with the discrete dipole approximation and the Mie theory for the test example of a spherical particle.
{"title":"Application of 3D MoM/CBFM technique to the problem of electromagnetic scattering by complex-shaped precipitation particles","authors":"I. Fenni, Z. Haddad, H. Roussel, R. Mittra","doi":"10.1109/APS.2016.7696760","DOIUrl":"https://doi.org/10.1109/APS.2016.7696760","url":null,"abstract":"The Characteristic Basis Function Method (CBFM) is applied to a 3D full-wave model, in conjunction with the volume-integral equation formulation (VIEF), in the frequency range of 1-35 GHz to calculate the electromagnetic scattering properties of complex-shaped precipitation particles in an efficient and accurate manner. Preliminary results derived by the use of the new approach are shown to be in good agreement with those obtained with the discrete dipole approximation and the Mie theory for the test example of a spherical particle.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"10 1","pages":"2107-2108"},"PeriodicalIF":0.0,"publicationDate":"2016-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88334484","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 : 2016-06-26DOI: 10.1109/APS.2016.7696073
K. Lekkas, Emilie Avignon-Meseldzija, F. Boust
In the present paper, we present a testbed appropriate for the evaluation of the bandwidth enhancement of effective permeability of a metamaterial when non-Foster circuits are used. The proposed methodology is used for the evaluation of the bandwidth enhancement of a split ring resonator sample when a negative inductor is used.
{"title":"A testbed for bandwidth characterization of non-Foster metamaterials","authors":"K. Lekkas, Emilie Avignon-Meseldzija, F. Boust","doi":"10.1109/APS.2016.7696073","DOIUrl":"https://doi.org/10.1109/APS.2016.7696073","url":null,"abstract":"In the present paper, we present a testbed appropriate for the evaluation of the bandwidth enhancement of effective permeability of a metamaterial when non-Foster circuits are used. The proposed methodology is used for the evaluation of the bandwidth enhancement of a split ring resonator sample when a negative inductor is used.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"20 1","pages":"729-730"},"PeriodicalIF":0.0,"publicationDate":"2016-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84800470","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 : 2016-06-26DOI: 10.1109/APS.2016.7696712
M. Fall, H. Roussel, C. Dahon, M. Casaletti, I. Fenni, R. Mittra
The Message Passing Interface implementation ensures a reduction of the computing time and a distribution of the necessary memory to each processor. The 3D full-wave model for electromagnetic scattering from forest environment, based on the volumetric integral Equation formulation of the electric field, combined with the Characteristic Basis Function Method (CBFM) and implemented in Message Passing Interface (MPI) parallelization is described in this paper. This combination of the CBFM and the Method of Moments (MoM) allows us to reduce significantly the size of the initial electromagnetic scattering problem.
{"title":"A high performance MPI implementation of numerical modeling of electromagnetic scattering from forest environment","authors":"M. Fall, H. Roussel, C. Dahon, M. Casaletti, I. Fenni, R. Mittra","doi":"10.1109/APS.2016.7696712","DOIUrl":"https://doi.org/10.1109/APS.2016.7696712","url":null,"abstract":"The Message Passing Interface implementation ensures a reduction of the computing time and a distribution of the necessary memory to each processor. The 3D full-wave model for electromagnetic scattering from forest environment, based on the volumetric integral Equation formulation of the electric field, combined with the Characteristic Basis Function Method (CBFM) and implemented in Message Passing Interface (MPI) parallelization is described in this paper. This combination of the CBFM and the Method of Moments (MoM) allows us to reduce significantly the size of the initial electromagnetic scattering problem.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"2014 1","pages":"2011-2012"},"PeriodicalIF":0.0,"publicationDate":"2016-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87754054","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 : 2016-06-26DOI: 10.1109/APS.2016.7696290
Ting Zhangt, G. Valério, J. Sarrazin, D. Istrate
This paper presents an approach to estimate body movements related to vital activities by means of a 60 GHz Doppler radar, using robust optimization algorithms. Several different scenarios are simulated and numerical reconstruction results are reported. The optimization algorithm is shown to be more convenient and less sensible to perturbations than a direct spectrum analysis of baseband signal.
{"title":"Non-contact estimation at 60 GHz for human vital signs monitoring using a robust optimization algorithm","authors":"Ting Zhangt, G. Valério, J. Sarrazin, D. Istrate","doi":"10.1109/APS.2016.7696290","DOIUrl":"https://doi.org/10.1109/APS.2016.7696290","url":null,"abstract":"This paper presents an approach to estimate body movements related to vital activities by means of a 60 GHz Doppler radar, using robust optimization algorithms. Several different scenarios are simulated and numerical reconstruction results are reported. The optimization algorithm is shown to be more convenient and less sensible to perturbations than a direct spectrum analysis of baseband signal.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"1 1","pages":"1165-1166"},"PeriodicalIF":0.0,"publicationDate":"2016-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76792974","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 : 2016-06-25DOI: 10.1109/APS.2016.7696738
Jean-Baptiste Poisson, J. Forster, Christian Onno Bohler, M. Gallus, A. Ulland, G. Biegel, T. Brehm, A. Danklmayer, Y. Hurtaud
Maritime environment, and in particular the sea clutter, has a significant impact on the detection efficiency. Therefore the physical properties of the radar sea clutter must be well mastered. In this paper, we focus on sea clutter data acquired during an experiment called MARLENE, which was held in the Mediterranean Sea region of Toulon, France, in 2014. The aim of this experiment was to characterize the sea environment influence on radar propagation and backscattering for Refractivity From Clutter (RFC) and radar Doppler detection. Three coastal radars, MARSIG (WTD 71), MEMPHIS (FHR) and MEDYCIS (ONERA) were used to acquire sea clutter measurements simultaneously. During the radar measurements, the in-situ oceanic and meteorological conditions were characterized on board of the RV PLANET meteorological ship deployed by WTD 71 and by WAVEWATCH III and SWAN wave models. The paper gives an overview of the MARLENE experiment, presents the radar data and the first results on sea clutter reflectivity and Doppler.
{"title":"Analysis of radar sea clutter data acquired during the MARLENE measurement campaign","authors":"Jean-Baptiste Poisson, J. Forster, Christian Onno Bohler, M. Gallus, A. Ulland, G. Biegel, T. Brehm, A. Danklmayer, Y. Hurtaud","doi":"10.1109/APS.2016.7696738","DOIUrl":"https://doi.org/10.1109/APS.2016.7696738","url":null,"abstract":"Maritime environment, and in particular the sea clutter, has a significant impact on the detection efficiency. Therefore the physical properties of the radar sea clutter must be well mastered. In this paper, we focus on sea clutter data acquired during an experiment called MARLENE, which was held in the Mediterranean Sea region of Toulon, France, in 2014. The aim of this experiment was to characterize the sea environment influence on radar propagation and backscattering for Refractivity From Clutter (RFC) and radar Doppler detection. Three coastal radars, MARSIG (WTD 71), MEMPHIS (FHR) and MEDYCIS (ONERA) were used to acquire sea clutter measurements simultaneously. During the radar measurements, the in-situ oceanic and meteorological conditions were characterized on board of the RV PLANET meteorological ship deployed by WTD 71 and by WAVEWATCH III and SWAN wave models. The paper gives an overview of the MARLENE experiment, presents the radar data and the first results on sea clutter reflectivity and Doppler.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"111 1","pages":"2063-2064"},"PeriodicalIF":0.0,"publicationDate":"2016-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79307384","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 : 2016-06-01DOI: 10.1109/APS.2016.7696112
Shraman Gupta, M. Akbari, A. Sebak
In this paper, a beamforming technique using multimode section based on s-parameters has been analyzed for antipodal fermi-linear tapered slot antenna (AFLTSA). The analysis is proposed for 2 × 2 and 4 × 4 sub arrays on Rogers 5880 substrate with a relative dielectric permittivity εr=2.2 in order to achieve an objective of high gain and narrow beamwidth, which can be used for target tracking and precise detection applications. The solution frequency is chosen as 32.5 GHz which yields 3 dB beamwidth of ~ 20° and ~13° for 2 × 2 and 4 × 4 AFLTSA structures respectively. The realized gain achieved for these two structures is 12.39 dB and 14.19 dB respectively. The simulation results for multimode section and sub array antenna structures are presented using Ansoft HFSS simulation tool.
{"title":"SIW beamforming of 2 × 2 and 4 × 4 AFLTSA arrays for MMW applications","authors":"Shraman Gupta, M. Akbari, A. Sebak","doi":"10.1109/APS.2016.7696112","DOIUrl":"https://doi.org/10.1109/APS.2016.7696112","url":null,"abstract":"In this paper, a beamforming technique using multimode section based on s-parameters has been analyzed for antipodal fermi-linear tapered slot antenna (AFLTSA). The analysis is proposed for 2 × 2 and 4 × 4 sub arrays on Rogers 5880 substrate with a relative dielectric permittivity εr=2.2 in order to achieve an objective of high gain and narrow beamwidth, which can be used for target tracking and precise detection applications. The solution frequency is chosen as 32.5 GHz which yields 3 dB beamwidth of ~ 20° and ~13° for 2 × 2 and 4 × 4 AFLTSA structures respectively. The realized gain achieved for these two structures is 12.39 dB and 14.19 dB respectively. The simulation results for multimode section and sub array antenna structures are presented using Ansoft HFSS simulation tool.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"1 1","pages":"807-808"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73487170","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 : 2016-06-01DOI: 10.1109/APS.2016.7696735
M. S. Mezghanni, N. Kandil, N. Hakem
In this paper, the effect of the radio-channel in underground mines on Wireless Sensor Networks (WSN) is evaluated through the simulation of the ZigBee/IEEE 802.15.4 physical layer. Since the IEEE 802.15.4 standard has no specification for channel equalization, existing techniques for equalizing multipath fading channels are used. This improves performance in terms of Bit Error Rate (BER) and Frame Error Rate (FER).
{"title":"IEEE 802.15.4 performance evaluation for the underground mine radio-channel","authors":"M. S. Mezghanni, N. Kandil, N. Hakem","doi":"10.1109/APS.2016.7696735","DOIUrl":"https://doi.org/10.1109/APS.2016.7696735","url":null,"abstract":"In this paper, the effect of the radio-channel in underground mines on Wireless Sensor Networks (WSN) is evaluated through the simulation of the ZigBee/IEEE 802.15.4 physical layer. Since the IEEE 802.15.4 standard has no specification for channel equalization, existing techniques for equalizing multipath fading channels are used. This improves performance in terms of Bit Error Rate (BER) and Frame Error Rate (FER).","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"12 1","pages":"2057-2058"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73666244","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 : 2016-06-01DOI: 10.1109/APS.2016.7696219
P. Shah, M. Moghaddam
Compressive sensing (CS) is a powerful sampling and reconstruction approach, if the unknown signal is sparse and the system matrix follows certain properties. It has been recently applied to inverse scattering problems numerous times without validating the properties of the system matrix. In this article, we seek to validate the applicability of CS to the inverse scattering problem. We formulate the problem such that the system matrix remains simple and universally applicable by using only a homogeneous background medium and then applying the CS constraints. Our analysis shows that the constraints can be satisfied under various scenarios. We then show the results of application of two such possible constraints.
{"title":"Theoretical derivation of RIP-less compressive sensing for inverse scattering","authors":"P. Shah, M. Moghaddam","doi":"10.1109/APS.2016.7696219","DOIUrl":"https://doi.org/10.1109/APS.2016.7696219","url":null,"abstract":"Compressive sensing (CS) is a powerful sampling and reconstruction approach, if the unknown signal is sparse and the system matrix follows certain properties. It has been recently applied to inverse scattering problems numerous times without validating the properties of the system matrix. In this article, we seek to validate the applicability of CS to the inverse scattering problem. We formulate the problem such that the system matrix remains simple and universally applicable by using only a homogeneous background medium and then applying the CS constraints. Our analysis shows that the constraints can be satisfied under various scenarios. We then show the results of application of two such possible constraints.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"10 1","pages":"1023-1024"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75252091","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 : 2016-06-01DOI: 10.1109/APS.2016.7695772
M. Zamudio, T. Busani, Y. Tawk, J. Costantine, C. Christodoulou
The design process for transparent conductive aluminum zinc oxide film AZO is presented in this document. The optimized RF conductivity and light transmittance properties of such film make it an attractive candidate for transparent antennas that are proposed for integration with solar cells.
{"title":"Design of AZO film for optically transparent antennas","authors":"M. Zamudio, T. Busani, Y. Tawk, J. Costantine, C. Christodoulou","doi":"10.1109/APS.2016.7695772","DOIUrl":"https://doi.org/10.1109/APS.2016.7695772","url":null,"abstract":"The design process for transparent conductive aluminum zinc oxide film AZO is presented in this document. The optimized RF conductivity and light transmittance properties of such film make it an attractive candidate for transparent antennas that are proposed for integration with solar cells.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"208 1","pages":"127-128"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75654509","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 : 2016-06-01DOI: 10.1109/APS.2016.7696529
H. Abbas, R. Nevels
The advantages and current challenges associated with constructing an integrated on-chip antenna based on plasma waves in a two-dimensional electron gas are presented. We briefly review the advantageous properties of plasma waves, chief of which is its subwavelength nature, the mode configuration and explore the possibility of achieving reduced sized antennas for wireless microwave devices.
{"title":"Plasma based integrated on-chip antenna","authors":"H. Abbas, R. Nevels","doi":"10.1109/APS.2016.7696529","DOIUrl":"https://doi.org/10.1109/APS.2016.7696529","url":null,"abstract":"The advantages and current challenges associated with constructing an integrated on-chip antenna based on plasma waves in a two-dimensional electron gas are presented. We briefly review the advantageous properties of plasma waves, chief of which is its subwavelength nature, the mode configuration and explore the possibility of achieving reduced sized antennas for wireless microwave devices.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"306 1","pages":"1645-1646"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75674686","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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