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2019 IEEE International Symposium on Phased Array System & Technology (PAST)最新文献

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Radar Target Localization by Phased Array with Vortex Wave Generating Elements 涡波发生单元相控阵雷达目标定位
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020830
A. Hizal, H. Yildiz
{"title":"Radar Target Localization by Phased Array with Vortex Wave Generating Elements","authors":"A. Hizal, H. Yildiz","doi":"10.1109/PAST43306.2019.9020830","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020830","url":null,"abstract":"Vortex waves (VW) carrying orbital angular momentum (OAM) have azimuth localization property based on phase variation. A phased array (PA) with VW generating elements combine the properties of PA and the vortex array (VA) for angular localization of targets. We have also exploited VW Gaussian beam (GB) generating circular array (CA) in addition to the classical Laguerre-Gaussian (LG) type beams. A rigorous theory of OAM is outlined by the multipole expansion of the spherical vector wave functions (SVWF). Range localization using matched filtering based on SVWF azimuthal mode number (topological charge) is proposed. It is shown that this scheme can be also combined with intrapulse phase coding for a better pulse compression. Two dimensional (2D) angular localization method based on multiple topological charge transmit/receive (TX/RX) patterns is described.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132181615","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
Axisymmetric Gregorian Reflector System for a Space-Deployed Inflatable Antenna: Simulations and Measurements 空间部署充气天线轴对称格里高利反射系统:仿真与测量
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9021054
A. Fenn, Jesse H. Mills, F. Robey, P. Dufilié, M. Hecht
{"title":"Axisymmetric Gregorian Reflector System for a Space-Deployed Inflatable Antenna: Simulations and Measurements","authors":"A. Fenn, Jesse H. Mills, F. Robey, P. Dufilié, M. Hecht","doi":"10.1109/PAST43306.2019.9021054","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9021054","url":null,"abstract":"An axisymmetric array-fed confocal parabolic Gregorian reflector antenna system for potential space deployment is explored. The simulated antenna at Ku-band utilizes a planar array located near the vertex of the primary reflector. Numerical electromagnetic simulations based on the multilevel fast multipole method (MLFMM) were used to analyze and optimize the antenna parameters for fixed on-axis peak directivity performance at Ku-band. Simulations of the radiation pattern performance of the dual reflector system with a 2.4m diameter primary reflector and 0.25m diameter subreflector operating at Ku band are presented. Compact range measurements of a prototype inflatable reflector system with an X-band horn-lens feed are compared with simulations.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130221643","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: 3
Performance Analysis of Cognitive Adaptive Array Processing (CAAP) in Phased Array Radar for Various Jammer Scenarios 相控阵雷达中认知自适应阵列处理(CAAP)在各种干扰情况下的性能分析
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020822
S. Elayaperumal, G. Rathna
{"title":"Performance Analysis of Cognitive Adaptive Array Processing (CAAP) in Phased Array Radar for Various Jammer Scenarios","authors":"S. Elayaperumal, G. Rathna","doi":"10.1109/PAST43306.2019.9020822","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020822","url":null,"abstract":"In phased array radar with element level digital beamforming, Cognitive Adaptive Array Processing (CAAP) technique allows adaptive jammer cancellation with very very less computational load compared to the Sample Matrix Inversion (SMI) technique. Previously published paper on this technique showed the performance analysis of CAAP with SMI for a linear array with element level digital beamforming. In this paper firstly, a mathematical model is developed to simulate the jammer and target signal with various scenarios for a planar array. Secondly performance analysis of CAAP with SMI is done for planar array with the sizes corresponding to the practical use.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121071103","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: 3
Optimal Irregular Subarray Design for Adaptive Jammer Suppression in Phased Array Radar 相控阵雷达自适应干扰抑制的最优不规则子阵设计
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9021033
S. Elayaperumal, K. Hari
{"title":"Optimal Irregular Subarray Design for Adaptive Jammer Suppression in Phased Array Radar","authors":"S. Elayaperumal, K. Hari","doi":"10.1109/PAST43306.2019.9021033","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9021033","url":null,"abstract":"In phased array radar systems, digital beam forming (DBF) techniques allow implementation of Array Signal Processing (ASP) algorithms like Adaptive Beam Forming (ABF) for jammer cancellation and high resolution angle estimation. In larger phased array radars, for cost and computational benefits, analog subarrays are formed and this output is digitized. For modularity in design and ease of maintenance these analog subarrays are designed with same structure, resulting in grating lobes in the super array antenna pattern. The performance of the system degrades heavily when jammer directions coincide with the grating lobes of the super array pattern. Joint design of subarray configuration and adaptive weights during radar operation using optimization algorithms exist in literature. In this paper, we propose a method which will design the subarray configuration with the required performance constraints and only beamforming weights are computed during the radar operation, for adaptive jammer suppression. This is shown to reduce the computational load enormously in the large phased array radar with acceptable performance, for adaptive jammer suppression. Numerical simulation results are provided to demonstrate the nerformance of the nronosed technique.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133756343","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: 6
Design of Low Phase Noise and Low Spurs Fractional-N PLL Based Frequency Generator for Millimeter Radar 毫米波雷达低相位噪声低杂散分数n锁相环频率发生器设计
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020917
Yuanqing Chen, Zhiming Yi, Bin Xu, N. Buris, Guangli Yang
{"title":"Design of Low Phase Noise and Low Spurs Fractional-N PLL Based Frequency Generator for Millimeter Radar","authors":"Yuanqing Chen, Zhiming Yi, Bin Xu, N. Buris, Guangli Yang","doi":"10.1109/PAST43306.2019.9020917","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020917","url":null,"abstract":"The front end of the radar is a key part of the entire millimeter wave system, and millimeter radars with high performance require the generation of low-spurs, low-phase-noise and highly linear chirp signal. In this paper, source of the phase noise and spurs of a fractional-N PLL based frequency generator are analyzed, and a series of methods are proposed to suppress the spurs and reduce the phase noise. To verify the theoretical analysis, a 24GHz millimeter wave signal source is designed and fabricated, and the measurement results show that the signal source performs well at 24GHz, while the loop bandwidth of the PLL is 35KHz, the phase noise is −74.6dBc/Hz at 50KHz and −110.3dBc/Hz at 1MHz. Moreover, there is no observable spurs near the central frequency.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114192143","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
A Low Profile Tightly Coupled Antenna Array with 80° Scanning for Multifunctional Applications 具有80°扫描的低轮廓紧密耦合天线阵列，用于多功能应用
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020796
Alpha O. Bah, T. Bird, P. Qin
{"title":"A Low Profile Tightly Coupled Antenna Array with 80° Scanning for Multifunctional Applications","authors":"Alpha O. Bah, T. Bird, P. Qin","doi":"10.1109/PAST43306.2019.9020796","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020796","url":null,"abstract":"A wideband wide scanning antenna array for application in multifunctional phased arrays is presented. The dipoles and balun are printed on both sides of a single RT/Duroid™ 6010 substrate with a relative dielectric constant of 10.2. Optimized designs of two thicknesses of a metasurface-based wide angle impedance matching layer are presented, facilitating the highest figure of merit values in phased array antennas. The feed network, composed of meandered impedance transformer and balun sections, are constructed from Klopfenstein tapered microstrip lines. The overall height of the array above the ground plane is 0.087 $lambda_{mathrm{L}}$, where $lambda_{mathrm{L}}$ is the wavelength at the lowest frequency of operation. For the single sided metasurface design, scanning to 80° along the E-plane and 55° along the H-plane over a 5.5:1 impedance bandwidth (0.77 GHz-4.2 GHz) was achieved assuming an active VSWR value of 3.1.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114597815","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
New Smart Plasma Antenna with Radiation Patterns and VSWR Measurements 具有辐射方向图和驻波比测量的新型智能等离子体天线
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020878
T. Anderson, Fred Dyer
{"title":"New Smart Plasma Antenna with Radiation Patterns and VSWR Measurements","authors":"T. Anderson, Fred Dyer","doi":"10.1109/PAST43306.2019.9020878","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020878","url":null,"abstract":"In this paper experimental results are presented on the radiation patterns and VSWR of the smart plasma antenna. Because of the restrictions of the use of COTS (commercial of the shelf) plasma tubes these designs are not optimized. In addition antenna beam focusing using refraction through a plasma which would significantly increase the gain is not used here but the results are given in another paper. This concept of creating a smart plasma antenna [1] is to surround a plasma antenna by a plasma blanket in which the plasma density can be varied. In regions where the plasma frequency is much less than the antenna frequency, the antenna radiation passes through as if a window exists in the plasma blanket. In regions where the plasma frequency is high the plasma behaves like a perfect reflector with a reactive skin depth. Hence by opening and closing a sequence of these plasma windows we can electronically steer or direct the antenna beam into any and all directions. The new smart plasma antenna design work concentrated on eliminating issues that have caused our smart plasma antenna to have less than optimal performance. The basic design and concept have not been changed. This paper does not cover plasma lenses [2] and [3], but plasma lenses in conjunction with smart plasma antennas can increase the gain above what the smart plasma antennas alone can provide.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123208072","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
Phased Array Applications to Improve Troposcatter Communications 改进对流层散射通信的相控阵应用
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020793
J. Winters, M. Luddy
{"title":"Phased Array Applications to Improve Troposcatter Communications","authors":"J. Winters, M. Luddy","doi":"10.1109/PAST43306.2019.9020793","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020793","url":null,"abstract":"Typical troposcatter communications systems use dish antennas to focus the beams in the direction of a shared common volume between the transmitter and receiver. However, measurements have shown that the best common volume is often not one small area, but multiple areas which can be unequally distributed, as the scattering medium is often not homogeneous. By using a phased array, we can match the transmitted beam shape to the scattering medium dynamically and thereby increase the signal-to-noise ratio (SNR)/data rate for a given transmit aperture and power. Techniques for maximizing SNR with phased arrays with troposcatter communications are discussed.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123252952","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: 3
Digital Beamforming - A Retrospective 数字波束形成-回顾
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020973
J. M. Loomis
{"title":"Digital Beamforming - A Retrospective","authors":"J. M. Loomis","doi":"10.1109/PAST43306.2019.9020973","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020973","url":null,"abstract":"This paper summarizes the development of digital beamforming from its inception through today and provides some insights into its future. It highlights the contributions of Dr. Hans Steyskal in the early stages of digital beamforming development for radar applications.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125110153","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
Millimeter-wave phased arrays for 5G: An industry view on current issues and challenges 5G毫米波相控阵:业界对当前问题和挑战的看法
2019 IEEE International Symposium on Phased Array System & Technology (PAST) Pub Date : 2019-10-01 DOI: 10.1109/PAST43306.2019.9020827
R. Flamini, C. Mazzucco, R. Lombardi, Claudio Massagrande, F. Morgia, A. Milani
{"title":"Millimeter-wave phased arrays for 5G: An industry view on current issues and challenges","authors":"R. Flamini, C. Mazzucco, R. Lombardi, Claudio Massagrande, F. Morgia, A. Milani","doi":"10.1109/PAST43306.2019.9020827","DOIUrl":"https://doi.org/10.1109/PAST43306.2019.9020827","url":null,"abstract":"Large antenna arrays have been always exploited for radar applications in order to provide very high spatial resolution, beam-forming and null-steering. These capabilities have been found to be extremely appealing for communication systems too because of their potential to provide highly-directive beams as the best solution to reduce interference and increase the overall capacity, allowing spectral reuse through spatial diversity. Nowadays the big challenge is not only related to the maximization of the overall system performance - which have been proven to be very effective when considering full-phased/full-digital architectures - but is mainly focused on the economic side: the real goal is to keep cost and energy consumption sufficiently low to obtain affordable products. This work focuses on millimeter-wave wireless systems (nun-Waves), and presents an overview of the application scenarios for 5G (and beyond) networks, together with the main related challenges and finally explores some techniques that can be adopted to design energy- and cost-efficient phased array antennas.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125190472","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: 6
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