Pub Date : 2016-07-10DOI: 10.1109/ANTEM.2016.7550125
E. Erfani, T. Denidni, S. Tatu, M. Niroo-jazi
A new high gain hybrid dielectric resonator antenna (HDRA) is proposed for millimeter-wave (mm-wave) communication systems operating in the frequency range of 57-64 GHz. A ring-shape dielectric resonator (DR) is excited by an aperture-coupled patch antenna to achieve multiple resonances and widen the antenna bandwidth. To enhance the antenna gain, the HDRA is surrounded with a metallic dented-cavity. In addition, the performance of its radiation pattern is improved by using grounded-metallic rings. The simulation results demonstrate a good performance in terms of bandwidths, gain, and radiation patterns.
{"title":"A broadband and high gain millimeter-wave hybrid dielectric resonator antenna","authors":"E. Erfani, T. Denidni, S. Tatu, M. Niroo-jazi","doi":"10.1109/ANTEM.2016.7550125","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550125","url":null,"abstract":"A new high gain hybrid dielectric resonator antenna (HDRA) is proposed for millimeter-wave (mm-wave) communication systems operating in the frequency range of 57-64 GHz. A ring-shape dielectric resonator (DR) is excited by an aperture-coupled patch antenna to achieve multiple resonances and widen the antenna bandwidth. To enhance the antenna gain, the HDRA is surrounded with a metallic dented-cavity. In addition, the performance of its radiation pattern is improved by using grounded-metallic rings. The simulation results demonstrate a good performance in terms of bandwidths, gain, and radiation patterns.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127112053","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550241
I. Jeffrey, J. Lovetri
Algorithms for solving time-harmonic electromagnetic inverse scattering problems can benefit from improved forward solver capabilities such as high-order discretizations of electromagnetic fields and constitutive parameters. The Discontinuous Galerkin Method (DGM) offers such high-order capabilities for simultaneously simulating both electric and magnetic fields from locally varying complex permittivity and permeability. In this work a Gauss-Newton Inversion (GNI) algorithm that adopts DGM as the forward solver is developed for 2D transverse magnetic inverse scattering problems.
{"title":"Discontinuous Galerkin Gauss-Newton Inversion for electromagnetic imaging","authors":"I. Jeffrey, J. Lovetri","doi":"10.1109/ANTEM.2016.7550241","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550241","url":null,"abstract":"Algorithms for solving time-harmonic electromagnetic inverse scattering problems can benefit from improved forward solver capabilities such as high-order discretizations of electromagnetic fields and constitutive parameters. The Discontinuous Galerkin Method (DGM) offers such high-order capabilities for simultaneously simulating both electric and magnetic fields from locally varying complex permittivity and permeability. In this work a Gauss-Newton Inversion (GNI) algorithm that adopts DGM as the forward solver is developed for 2D transverse magnetic inverse scattering problems.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"96 3 Suppl 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129046676","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550119
J. Zaid, M. Farahani, T. Denidni
This paper presents a circular polarization (CP) microstrip patch antenna at L1-band (1575 MHz). The proposed antenna is miniaturized using electromagnetic bandgap (EBG). Therefore, the antenna has a size reduction of 40 % comparison with convential antenna. In addition, the proposed antenna provides a good gain. The right hand circular polarization (RHCP) is achieved by etching truncated corner of the patch. This antenna was designed using CST software, and obtained results show good performances in term of bandwidth, gain and radiation pattern.
{"title":"Miniatunrized microstrip patch antenna using electromagnetic bandgap (EBG) for GPS applications","authors":"J. Zaid, M. Farahani, T. Denidni","doi":"10.1109/ANTEM.2016.7550119","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550119","url":null,"abstract":"This paper presents a circular polarization (CP) microstrip patch antenna at L1-band (1575 MHz). The proposed antenna is miniaturized using electromagnetic bandgap (EBG). Therefore, the antenna has a size reduction of 40 % comparison with convential antenna. In addition, the proposed antenna provides a good gain. The right hand circular polarization (RHCP) is achieved by etching truncated corner of the patch. This antenna was designed using CST software, and obtained results show good performances in term of bandwidth, gain and radiation pattern.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132989123","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550106
M. Ali, O. Haraz, S. Alshebeili, A. Sebak
In this paper, a broadband elliptical-shaped slot antenna for the future fifth generation (5G) wireless applications is proposed. The antenna has a compact size of 0.5λ0 × 0.5λ0 at 30 GHz. It consists of a circular shaped radiating patch fed by a 50-Ω microstrip line via proximity-feed technique. An elliptically shaped slot is etched in the ground plane to enhance the antenna bandwidth. A stub has been added to the microstrip line feed to achieve better impedance matching bandwidth of the antenna. Simulated results indicate that the proposed 5G antenna yields a broadband impedance bandwidth larger than 67% (from 20 GHz to beyond 40 GHz) for S11 less than -10 dB. The achieved bandwidth covers both future 5G bands (28/38 GHz). The proposed antenna provides almost omni-directional patterns, relatively flat gain, and high radiation efficiency through the frequency band excluding the rejected band.
{"title":"Broadband printed slot antenna for the fifth generation (5G) mobile and wireless communications","authors":"M. Ali, O. Haraz, S. Alshebeili, A. Sebak","doi":"10.1109/ANTEM.2016.7550106","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550106","url":null,"abstract":"In this paper, a broadband elliptical-shaped slot antenna for the future fifth generation (5G) wireless applications is proposed. The antenna has a compact size of 0.5λ0 × 0.5λ0 at 30 GHz. It consists of a circular shaped radiating patch fed by a 50-Ω microstrip line via proximity-feed technique. An elliptically shaped slot is etched in the ground plane to enhance the antenna bandwidth. A stub has been added to the microstrip line feed to achieve better impedance matching bandwidth of the antenna. Simulated results indicate that the proposed 5G antenna yields a broadband impedance bandwidth larger than 67% (from 20 GHz to beyond 40 GHz) for S11 less than -10 dB. The achieved bandwidth covers both future 5G bands (28/38 GHz). The proposed antenna provides almost omni-directional patterns, relatively flat gain, and high radiation efficiency through the frequency band excluding the rejected band.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128780134","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550184
Y. Madany, D. Mohamed, W. Ali, Hanady A. Abd-Alnaeem
Modern satellite, wireless communications, and radar systems often demand the wideband performance for multi-channel and multi-function operation. Recent technologies enable electronic and RF circuits in radar and communication devices to be miniaturized and become physically smaller in size. Antenna design has been one of the key limiting constraints to the development of small communication terminals, next generation wireless communication and radar requirements of multi-band and multi-function operation. In this paper, design of miniaturized multifunction two elements microstrip array with single-pole double-throw (SPDT) transmitter/receiver (T/R) switch has been introduced and investigated. The entire proposed array antenna has been evaluated using a commercial software. The final proposed design has been fabricated and the radiation characteristics have been illustrated using network analyzer to meet the requirements for multifunction applications.
{"title":"Design and analysis of miniaturized multifunction two elements microstrip array antenna with SPDT switch for communication and radar applications","authors":"Y. Madany, D. Mohamed, W. Ali, Hanady A. Abd-Alnaeem","doi":"10.1109/ANTEM.2016.7550184","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550184","url":null,"abstract":"Modern satellite, wireless communications, and radar systems often demand the wideband performance for multi-channel and multi-function operation. Recent technologies enable electronic and RF circuits in radar and communication devices to be miniaturized and become physically smaller in size. Antenna design has been one of the key limiting constraints to the development of small communication terminals, next generation wireless communication and radar requirements of multi-band and multi-function operation. In this paper, design of miniaturized multifunction two elements microstrip array with single-pole double-throw (SPDT) transmitter/receiver (T/R) switch has been introduced and investigated. The entire proposed array antenna has been evaluated using a commercial software. The final proposed design has been fabricated and the radiation characteristics have been illustrated using network analyzer to meet the requirements for multifunction applications.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127640448","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550234
Yanxia Liu, R. Raju, L. Shafai, C. Shafai
Naturally occurring high permeability materials are widely used in antenna miniaturization at VHF-UHF frequency range. However, they are unable to be used at frequencies beyond 500 MHz due to their high loss. The main idea of this paper is to reproduce the magnetic behavior using metallic inclusions for low-loss microwave applications. In this paper, an artificial magneto-dielectric resonator antenna (AMDRA), operating at 3.857 GHz, based on split ring resonator (SRR) is presented. The simulation results are compared to those of the conventional dielectric resonator antenna (DRA) with high permittivity. It is shown that the size of the proposed antenna is 1.8 times smaller than that of the conventional DRA, with an efficiency of 88% and a gain of 5.8 dBi. This demonstrates that the artificially induced permeability can be effectively used in dielectric antenna miniaturization.
{"title":"A miniaturized artificial magneto-dielectric resonator antenna with split ring resonators","authors":"Yanxia Liu, R. Raju, L. Shafai, C. Shafai","doi":"10.1109/ANTEM.2016.7550234","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550234","url":null,"abstract":"Naturally occurring high permeability materials are widely used in antenna miniaturization at VHF-UHF frequency range. However, they are unable to be used at frequencies beyond 500 MHz due to their high loss. The main idea of this paper is to reproduce the magnetic behavior using metallic inclusions for low-loss microwave applications. In this paper, an artificial magneto-dielectric resonator antenna (AMDRA), operating at 3.857 GHz, based on split ring resonator (SRR) is presented. The simulation results are compared to those of the conventional dielectric resonator antenna (DRA) with high permittivity. It is shown that the size of the proposed antenna is 1.8 times smaller than that of the conventional DRA, with an efficiency of 88% and a gain of 5.8 dBi. This demonstrates that the artificially induced permeability can be effectively used in dielectric antenna miniaturization.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133800199","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550183
E'qab Almajali, Aldo Petosa, Derek A. McNamara, Jim S. Wight
New observations related to the use of a dielectric substrate and an actual feed, in obtaining the interference pattern used in the synthesis of planar holographic antennas, are provided. It is demonstrated that the inclusion of the dielectric substrate, and actual feed effects, in holographic antenna realization, improves the antenna performance.
{"title":"Observations on the realisation & performance of low profile planar holographic antennas","authors":"E'qab Almajali, Aldo Petosa, Derek A. McNamara, Jim S. Wight","doi":"10.1109/ANTEM.2016.7550183","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550183","url":null,"abstract":"New observations related to the use of a dielectric substrate and an actual feed, in obtaining the interference pattern used in the synthesis of planar holographic antennas, are provided. It is demonstrated that the inclusion of the dielectric substrate, and actual feed effects, in holographic antenna realization, improves the antenna performance.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"35 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114126239","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550212
Haitham Abu Damis, R. Mirzavand, Hyun‐Joong Chung, P. Mousavi
Two square-loop antennas for wearable applications in the 2.45 GHz (ISM) region are presented and compared. Both antennas were simulated, and then printed on flexible DuPont Kapton sheets for measurements. The standard square-loop antenna was modified by adding four circular patches to its sides in an effort to enhance performance. The new antenna is called the Quadruple Loop (QL) antenna. Simulations and measurement results show that the QL antenna demonstrated robust operation over a wider impedance bandwidth compared to that of the standard square loop antenna.
{"title":"Flexible printed square loop antennas for wearable applications","authors":"Haitham Abu Damis, R. Mirzavand, Hyun‐Joong Chung, P. Mousavi","doi":"10.1109/ANTEM.2016.7550212","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550212","url":null,"abstract":"Two square-loop antennas for wearable applications in the 2.45 GHz (ISM) region are presented and compared. Both antennas were simulated, and then printed on flexible DuPont Kapton sheets for measurements. The standard square-loop antenna was modified by adding four circular patches to its sides in an effort to enhance performance. The new antenna is called the Quadruple Loop (QL) antenna. Simulations and measurement results show that the QL antenna demonstrated robust operation over a wider impedance bandwidth compared to that of the standard square loop antenna.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130141906","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550150
M. A. Meriche, H. Attia, A. Messai, T. Denidni
A coplanar-waveguide fed monopole antenna over a new artificial magnetic conductor (AMC) for WLAN and WiMAX applications is presented. Artificial magnetic conductors are utilized as in-phase reflectors for improving the radiation performance of the printed monopole antennas. The AMC structure is composed of U-slot loaded square patches printed on grounded dielectric substrates. The AMC operates at dual frequency bands of 3.3 and 5.5 GHz. It is demonstrated that the antenna gain increases by about 6.0 dB and 3-dB gain bandwidth of 2.16-6.0 GHz when the AMC is used.
{"title":"Gain improvement of a wideband monopole antenna with novel artificial magnetic conductor","authors":"M. A. Meriche, H. Attia, A. Messai, T. Denidni","doi":"10.1109/ANTEM.2016.7550150","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550150","url":null,"abstract":"A coplanar-waveguide fed monopole antenna over a new artificial magnetic conductor (AMC) for WLAN and WiMAX applications is presented. Artificial magnetic conductors are utilized as in-phase reflectors for improving the radiation performance of the printed monopole antennas. The AMC structure is composed of U-slot loaded square patches printed on grounded dielectric substrates. The AMC operates at dual frequency bands of 3.3 and 5.5 GHz. It is demonstrated that the antenna gain increases by about 6.0 dB and 3-dB gain bandwidth of 2.16-6.0 GHz when the AMC is used.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127286656","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 : 2016-07-10DOI: 10.1109/ANTEM.2016.7550123
Q. Yan, Weimin Huang
In this paper, a scheme is presented for sea ice detection from Global Navigation Satellite System-Reflectometry (GNSS-R) Delay-Doppler Map (DDM). It is found that the DDM of sea ice differs from the one of seawater in the aspect of delay and Doppler spreading. This enables to distinguish sea ice from seawater through studying the number of high-value (greater than 50% of the peak power) DDM pixels. The area associated with a DDM with a number of high-value pixels less and greater than an empirical threshold (12) will be classified as covered by sea ice and seawater, respectively. The proposed method is validated by comparing the DDM-based detection results with ground-truth sea ice data and a detection accuracy of 100% is achieved.
{"title":"Sea ice detection from GNSS-R Delay-Doppler Map","authors":"Q. Yan, Weimin Huang","doi":"10.1109/ANTEM.2016.7550123","DOIUrl":"https://doi.org/10.1109/ANTEM.2016.7550123","url":null,"abstract":"In this paper, a scheme is presented for sea ice detection from Global Navigation Satellite System-Reflectometry (GNSS-R) Delay-Doppler Map (DDM). It is found that the DDM of sea ice differs from the one of seawater in the aspect of delay and Doppler spreading. This enables to distinguish sea ice from seawater through studying the number of high-value (greater than 50% of the peak power) DDM pixels. The area associated with a DDM with a number of high-value pixels less and greater than an empirical threshold (12) will be classified as covered by sea ice and seawater, respectively. The proposed method is validated by comparing the DDM-based detection results with ground-truth sea ice data and a detection accuracy of 100% is achieved.","PeriodicalId":447985,"journal":{"name":"2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121928402","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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