Pub Date : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8073304
S. Maddio, G. Pelosi, M. Righini, S. Selleri, V. Sorrentino
This paper presents the development and characterization of a dual-band left hand circularly polarized square mi-crostrip antenna for WiFi applications (2.45GHz and 5.20 GHz) with a single feed point. The proposed design is achieved via a central slot and four symmetrical T-shaped slits on the patch sides. The antenna is then arranged in a cubic set-up for MIMO applications. Experimental results are presented.
{"title":"A dual band circularly polarized square patch for indoor positioning systems","authors":"S. Maddio, G. Pelosi, M. Righini, S. Selleri, V. Sorrentino","doi":"10.1109/APUSNCURSINRSM.2017.8073304","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073304","url":null,"abstract":"This paper presents the development and characterization of a dual-band left hand circularly polarized square mi-crostrip antenna for WiFi applications (2.45GHz and 5.20 GHz) with a single feed point. The proposed design is achieved via a central slot and four symmetrical T-shaped slits on the patch sides. The antenna is then arranged in a cubic set-up for MIMO applications. Experimental results are presented.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116128515","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072572
Q. Ren, Jogender Nagar, L. Kang, Yusheng Bian, P. Werner, D. Werner
This work presents an efficient time domain numerical approach to simulate the wideband response of Drude-critical point (DCP) media. Based on previous research and development of the Discontinuous Galerkin Time Domain (DGTD) method, this approach applies the collocated E-J scheme to discretize the electric fields and polarization currents. A hybridization of the Runge-Kutta and Newmark methods is also proposed to solve the associated first-order and second-order temporal auxiliary differential equations. The effectiveness and efficiency of this new approach is validated through comparison with commercial software.
{"title":"An efficient wideband numerical simulation technique for nanostructures comprised of DCP media","authors":"Q. Ren, Jogender Nagar, L. Kang, Yusheng Bian, P. Werner, D. Werner","doi":"10.1109/APUSNCURSINRSM.2017.8072572","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072572","url":null,"abstract":"This work presents an efficient time domain numerical approach to simulate the wideband response of Drude-critical point (DCP) media. Based on previous research and development of the Discontinuous Galerkin Time Domain (DGTD) method, this approach applies the collocated E-J scheme to discretize the electric fields and polarization currents. A hybridization of the Runge-Kutta and Newmark methods is also proposed to solve the associated first-order and second-order temporal auxiliary differential equations. The effectiveness and efficiency of this new approach is validated through comparison with commercial software.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116154473","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072836
Maryam Razmhosseini, R. Vaughan
The slotted waveguide array is a suitable as standalone antenna and subarray for large array antennas. Its design is complicated, in particular for understanding the impedance bandwidth. As a resonant array of resonant elements, the bandwidth is naturally small, but the role of the main parameters — the waveguide length, the number of slots, and the slot shapes — on the impedance bandwidth is not widely understood. This paper contributes a study which illuminates these roles. Analytic modelling of the slots and waveguide and their interaction is not yet sufficiently accurate to draw specific design conclusions. The complexity of configuration calls for a simulation approach. The results here give direct design information and can assist with formulating transmission line modelling. They show that the impedance bandwidth against the waveguide length for a given slot configuration follows a reasonable trend whereas the impact of the element shape is secondary, and is generally more complex for the larger bandwidths.
{"title":"Impedance bandwidth of a slotted waveguide array: Impact of waveguide length and element shape","authors":"Maryam Razmhosseini, R. Vaughan","doi":"10.1109/APUSNCURSINRSM.2017.8072836","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072836","url":null,"abstract":"The slotted waveguide array is a suitable as standalone antenna and subarray for large array antennas. Its design is complicated, in particular for understanding the impedance bandwidth. As a resonant array of resonant elements, the bandwidth is naturally small, but the role of the main parameters — the waveguide length, the number of slots, and the slot shapes — on the impedance bandwidth is not widely understood. This paper contributes a study which illuminates these roles. Analytic modelling of the slots and waveguide and their interaction is not yet sufficiently accurate to draw specific design conclusions. The complexity of configuration calls for a simulation approach. The results here give direct design information and can assist with formulating transmission line modelling. They show that the impedance bandwidth against the waveguide length for a given slot configuration follows a reasonable trend whereas the impact of the element shape is secondary, and is generally more complex for the larger bandwidths.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116552109","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072366
S. A. Long
The history of the IEEE Antennas and Propagation Society's awards is discussed. The various categories and criteria for both the achievement and best paper awards are detailed; and the past winners are listed for the AP-S Distinguished Achievement Award, the Chen-To Tai Distinguished Educator Award, and the John Kraus Antenna Award.
{"title":"A historical perspective on the IEEE antennas and propagation society awards for individual achievement and outstanding papers","authors":"S. A. Long","doi":"10.1109/APUSNCURSINRSM.2017.8072366","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072366","url":null,"abstract":"The history of the IEEE Antennas and Propagation Society's awards is discussed. The various categories and criteria for both the achievement and best paper awards are detailed; and the past winners are listed for the AP-S Distinguished Achievement Award, the Chen-To Tai Distinguished Educator Award, and the John Kraus Antenna Award.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122405382","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}
This paper describes a novel Ku/Ka band reflectarray antenna for operating at arbitrary polarization. The reflectarray elements consist of two different types of elements: cross-dipole element with fixed-dimension ring for the lower band, and the ring element with round patches for the upper band. Furthermore, the parameters of the element are optimized to suppress the coupling effects. The simulated radiation patterns of the dual-reflectarray antenna using the proposed element can show a gain of 18.5 dB at 16 GHz and 24.9dB at 35GHz with the aperture efficiency of 38.21% and 34.85% for the lower and upper band, respectively.
{"title":"A novel ku/ka dual-band reflectarray antenna with arbitrary polarization","authors":"Jianing Zhao, Hao Li, Wei Mao, Shengli Cao, Keqiang Wang, Peng Zhao, Qian Li","doi":"10.1109/APUSNCURSINRSM.2017.8073069","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8073069","url":null,"abstract":"This paper describes a novel Ku/Ka band reflectarray antenna for operating at arbitrary polarization. The reflectarray elements consist of two different types of elements: cross-dipole element with fixed-dimension ring for the lower band, and the ring element with round patches for the upper band. Furthermore, the parameters of the element are optimized to suppress the coupling effects. The simulated radiation patterns of the dual-reflectarray antenna using the proposed element can show a gain of 18.5 dB at 16 GHz and 24.9dB at 35GHz with the aperture efficiency of 38.21% and 34.85% for the lower and upper band, respectively.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122913187","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072725
Abdul-Sattar Kaddour, S. Bories, C. Delaveaud, A. Bellion
In this paper, a novel wideband frequency reconfigurable compact dual-polarized magneto-electric dipole is presented. The antenna has two operation modes and cover an ultra-wideband operation frequency from 1.5 to 2.8 GHz and from 2.5 to 4.6 GHz with a Standing Wave Ratio (SWR) <3. RF PIN diodes are placed on the antenna structure and used as switches to select different operation modes. Moreover, in the lower operation band adding a capacitive loading allows to miniaturize the antenna height to 0.1λ.
{"title":"Frequency reconfigurable wideband compact dual-polarized magneto-electric dipole","authors":"Abdul-Sattar Kaddour, S. Bories, C. Delaveaud, A. Bellion","doi":"10.1109/APUSNCURSINRSM.2017.8072725","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072725","url":null,"abstract":"In this paper, a novel wideband frequency reconfigurable compact dual-polarized magneto-electric dipole is presented. The antenna has two operation modes and cover an ultra-wideband operation frequency from 1.5 to 2.8 GHz and from 2.5 to 4.6 GHz with a Standing Wave Ratio (SWR) <3. RF PIN diodes are placed on the antenna structure and used as switches to select different operation modes. Moreover, in the lower operation band adding a capacitive loading allows to miniaturize the antenna height to 0.1λ.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122971297","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072171
J. Massey, Ali E. YıiOlmaz
The adaptive integral method (AIM) is used to solve the basic, moderate, and hard classes of problems in the Austin Benchmark Suite for Computational Bioelectromagnetics. Performance data, including computational costs and errors, are shown for both fast and efficient simulations run on a supercomputer cluster.
{"title":"Austin benchmark suite for computational bioelectromagnetics: AIM performance data","authors":"J. Massey, Ali E. YıiOlmaz","doi":"10.1109/APUSNCURSINRSM.2017.8072171","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072171","url":null,"abstract":"The adaptive integral method (AIM) is used to solve the basic, moderate, and hard classes of problems in the Austin Benchmark Suite for Computational Bioelectromagnetics. Performance data, including computational costs and errors, are shown for both fast and efficient simulations run on a supercomputer cluster.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123036523","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072827
Ming-da Zhu
Duffy transformation is a well-known singularity cancellation method for handling weakly singular integrals in integral equation solutions. However, Duffy transformation is found to be inaccurate and inefficient for irregularly shaped triangles in several academic papers. In order to alleviate the deformed shape problem of Duffy transformation, a simple polynomial smoothing strategy for Duffy transformation is presented for calculating weakly singular integrals over irregular triangular domains, which also results in faster convergence than that of Duffy transformation. Some numerical results are given to demonstrate the accuracy and the flexibility of the proposed proposed scheme.
{"title":"Duffy transformation with a simple polynomial smoothing strategy for weakly singular integrals","authors":"Ming-da Zhu","doi":"10.1109/APUSNCURSINRSM.2017.8072827","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072827","url":null,"abstract":"Duffy transformation is a well-known singularity cancellation method for handling weakly singular integrals in integral equation solutions. However, Duffy transformation is found to be inaccurate and inefficient for irregularly shaped triangles in several academic papers. In order to alleviate the deformed shape problem of Duffy transformation, a simple polynomial smoothing strategy for Duffy transformation is presented for calculating weakly singular integrals over irregular triangular domains, which also results in faster convergence than that of Duffy transformation. Some numerical results are given to demonstrate the accuracy and the flexibility of the proposed proposed scheme.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114406584","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072911
A. Ibrahim, M. Abdalla, R. Shubair
This paper presents the design of a metamaterial MIMO antenna which operates at 5.8 GHz. The left handed single cell of series capacitor and shunt inductor are considered the main block of the antenna elements. The configuration of the shunt stub is reversed to achieve lower coupling between the antenna elements The small size of only 2.93cm×2.6cm and high isolation of more than 35 dB are considered to be the main advantageous of the proposed metamaterial MIMO design. Experimental measurements of the fabricated antenna design agree with simulation results.
{"title":"High-isolation metamaterial MIMO antenna","authors":"A. Ibrahim, M. Abdalla, R. Shubair","doi":"10.1109/APUSNCURSINRSM.2017.8072911","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072911","url":null,"abstract":"This paper presents the design of a metamaterial MIMO antenna which operates at 5.8 GHz. The left handed single cell of series capacitor and shunt inductor are considered the main block of the antenna elements. The configuration of the shunt stub is reversed to achieve lower coupling between the antenna elements The small size of only 2.93cm×2.6cm and high isolation of more than 35 dB are considered to be the main advantageous of the proposed metamaterial MIMO design. Experimental measurements of the fabricated antenna design agree with simulation results.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114428338","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 : 2017-07-01DOI: 10.1109/APUSNCURSINRSM.2017.8072791
A. Slobozhanyuk, Y. Kivshar, A. Shchelokova, I. Melchakova, S. Glybovski, P. Belov, A. Webb
Metasurfaces created a new paradigm in the research of artificial electromagnetic structures owing to their potential to overcome many challenges typically associated with bulk metamaterials. However, a majority of demonstrated metasurface structures possess fixed properties, e.g. fixed operational bandwidth or functionality. An active control of metasurface functionalities and bandwidth is highly desirable for engineering an advanced electromagnetic and photonic devices. Here, we suggest and demonstrate experimentally a novel type of metasurface capable of dramatic enhancing the image quality.
{"title":"Tunable hybrid metasurfaces for image quality enhancement","authors":"A. Slobozhanyuk, Y. Kivshar, A. Shchelokova, I. Melchakova, S. Glybovski, P. Belov, A. Webb","doi":"10.1109/APUSNCURSINRSM.2017.8072791","DOIUrl":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072791","url":null,"abstract":"Metasurfaces created a new paradigm in the research of artificial electromagnetic structures owing to their potential to overcome many challenges typically associated with bulk metamaterials. However, a majority of demonstrated metasurface structures possess fixed properties, e.g. fixed operational bandwidth or functionality. An active control of metasurface functionalities and bandwidth is highly desirable for engineering an advanced electromagnetic and photonic devices. Here, we suggest and demonstrate experimentally a novel type of metasurface capable of dramatic enhancing the image quality.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114445698","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：