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Parametric study of UWB antenna loaded with stacked parasitic patch and reflector 负载叠加寄生贴片和反射器的超宽带天线参数化研究
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711920
D. Awan, S. Bashir, N. Riauka
{"title":"Parametric study of UWB antenna loaded with stacked parasitic patch and reflector","authors":"D. Awan, S. Bashir, N. Riauka","doi":"10.1109/LAPC.2013.6711920","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711920","url":null,"abstract":"This paper presents a parametric study of a UWB antenna loaded with parasitic patches on the front and metal sheets as reflectors on the back side. A maximum increase of 2.6dB in gain with a maximum gain of 10.4dBi was observed by increasing the number of parasitic patches but keeping their sizes fixed. Similarly by varying the size of the parasitic patches, gain increased by 5dB. Finally increasing the size of the metal reflector showed an increase of 3.5dB in gain. This parametric study provides the design guidelines for the best configuration of UWB antenna integrated with parasitic patches and metal reflectors.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121989280","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: 4
Impedance modeling for a unit cell of the square loop frequency selective surface at 2.4 GHz 2.4 GHz方形环路频率选择面单元格的阻抗建模
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711873
M. Abd Aziz, M. M. Shukor, M. K. Suaidi, B. Ahmad, M. F. Johar, M. A. Othman, M. F. Abd Malek, M. S. Zulkefli
{"title":"Impedance modeling for a unit cell of the square loop frequency selective surface at 2.4 GHz","authors":"M. Abd Aziz, M. M. Shukor, M. K. Suaidi, B. Ahmad, M. F. Johar, M. A. Othman, M. F. Abd Malek, M. S. Zulkefli","doi":"10.1109/LAPC.2013.6711873","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711873","url":null,"abstract":"Equivalent Circuit (EC) method gives a simple alternative method in Frequency Selective Surface (FSS) analyses which are useful for quickly predicting the characteristic of FSS. An impedance modeling of the Equivalent Circuit (EC) for a unit cell of the square loop FSS structure is presented in this paper. The unit cell of the square loop FSS is designed and simulated using the CST Microwave Studio software at 2.4 GHz based on industrial, scientific and medical bands (ISM) standard. The square loop FSS is simulated without FSS, with square FSS and square FSS with slot. The investigation has been done on the length of substrate (s), width of substrate (w), length of square FSS (a), length of square FSS with slot (b) and the number of slots (n). Real (Re) and Imaginary (Im) component of EC or known as resistance and reactance has been modeled based on physical parameters of the design structure of the FSS. The resistance and reactance of the impedance are depending on the geometry of the unit cell of FSS. This impedance modelling can be used to design the advance FSS for the similar ISM band. EC gives a simple alternative method in FSS analyses which are useful for quickly predicting the performance of FSS. The 7th and 8th degree polynomial type has been used to model the component of EC.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122259512","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: 7
Compact meanderline surface for linear to cicular polarisation transform 紧凑的曲线表面线性到圆极化变换
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711896
I. Morrow, P. Thomas
{"title":"Compact meanderline surface for linear to cicular polarisation transform","authors":"I. Morrow, P. Thomas","doi":"10.1109/LAPC.2013.6711896","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711896","url":null,"abstract":"A circular polarisation frequency selective surface converts linearly polarised waves into circular polarised ones or reflects one sense of circular polarisation and transmits another. While known designs made with meanderlines often employ several cascaded surfaces with many interconnects; the design feature reported here is a single planar surface of very closely arrayed metallic meanderline loaded with rectangular patches. This approach permits a broadband polariser that opeates over a wide frequency range and angles of incidence. The finite element method and waveguide simulator technique are used to analyse the reflected and transmitted plane waves from these surfaces on normal and oblique incidence.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125744628","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
Circularly polarized equilateral triangle patch antenna for UHF RFID reader applications 用于超高频RFID阅读器的圆极化等边三角形贴片天线
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711928
C. Sim, Y. Hsu
{"title":"Circularly polarized equilateral triangle patch antenna for UHF RFID reader applications","authors":"C. Sim, Y. Hsu","doi":"10.1109/LAPC.2013.6711928","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711928","url":null,"abstract":"A simple circularly polarized (CP) equilateral triangular patch antenna for UHF (902-928 MHz) radio identification (RFID) reader applications is proposed. In this design, good CP radiation is achieved by loading a near semi-circular notch is into the patch. Furthermore, the L-shaped probe-feed method is used for achieving good impedance matching that results in broad impedance and CP bandwidth. The experimental results show that the 3-dB AR (axial ratio) bandwidth is approximately 3% (902-929 MHz), while the 10-dB impedance bandwidth is approximately 25.4% (854-1102 MHz).","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132848629","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: 2
Robustness of the behavior of microstrip lines loaded with disordered complementary split ring resonators 加载无序互补分环谐振器的微带线的鲁棒性
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711956
A. Sidibe, F. Gadot, B. Belier, G. Bordier, A. Ghribi, A. Tartari, D. Cammilleri, M. Piat, J. Martino, F. Pajot
{"title":"Robustness of the behavior of microstrip lines loaded with disordered complementary split ring resonators","authors":"A. Sidibe, F. Gadot, B. Belier, G. Bordier, A. Ghribi, A. Tartari, D. Cammilleri, M. Piat, J. Martino, F. Pajot","doi":"10.1109/LAPC.2013.6711956","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711956","url":null,"abstract":"In many papers, compact band-reject filters are realized by associating microstrip lines with complementary split ring resonators (CSRR). These studies assume that the periodicity of CSRR is perfect. However, a margin of error, related to the precision of manufacturing techniques, appears when operating these filters. In this paper, the robustness of the behavior of these filters is studied according to the degree of disturbance of the periodicity.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133281633","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 slot-loaded reduced-size CPW-fed aperture antenna for UWB applications 一种用于超宽带应用的狭缝加载小尺寸cpw馈电孔径天线
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711973
M. Zolfaghari, N. Riley, Meftah Mahdawi, Jie Shen
{"title":"A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications","authors":"M. Zolfaghari, N. Riley, Meftah Mahdawi, Jie Shen","doi":"10.1109/LAPC.2013.6711973","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711973","url":null,"abstract":"The paper presents a co-planar wave guide (CPW)-fed slot loaded low return loss planar printed antenna with a small size designed for wireless communication and UWB applications. First, a conventional UWB antenna is modeled to provide a reference point for the modeling and then the shape is modified by a self inverted configuration to achieve higher bandwidth and size reduction. To improve the gain and efficiency, a combination of corner features and loading slots are introduced. The primary aim throughout the modeling was to achieve the minimum possible value of return loss (S11) below -10 dB over the FCC-defined UWB frequency range. The antenna was designed, simulated and modified using Agilent's Advanced Design System (ADS). It was fabricated on FR4 substrate and measured return loss results are presented.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"31 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114120501","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: 4
An analytical closed-form solution for electromagnetic scattering from a metallic spheroid in terms of spheroidal eigenvectors 金属椭球体电磁散射的球形特征向量解析闭式解
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711889
G. P. Zouros, A. D. Kotsis, J. Roumeliotis
{"title":"An analytical closed-form solution for electromagnetic scattering from a metallic spheroid in terms of spheroidal eigenvectors","authors":"G. P. Zouros, A. D. Kotsis, J. Roumeliotis","doi":"10.1109/LAPC.2013.6711889","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711889","url":null,"abstract":"The electromagnetic scattering of a plane wave by a metallic spheroid is studied in this work. The solution is obtained using two alternative methods: the first method is based on applying asymptotic expansions on the spheroidal eigenvectors, allowing a closed-form solution which is valid for small eccentricities of the spheroid. The second method is based on the exact solution using the separation of variables in terms of the spheroidal eigenvectors. Both prolate and oblate spheroids are considered, and both TE and TM incident plane waves are studied. Numerical results are given for various values of the parameters.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"45 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121203966","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
Reconfigurable small antenna for mobile phone using MEMS tunable capacitor 使用MEMS可调谐电容器的可重构手机小天线
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711919
P. Ramachandran, P. Annamaa, R. Gaddi, P. Tornatta, L. Morrell, C. Schepens
{"title":"Reconfigurable small antenna for mobile phone using MEMS tunable capacitor","authors":"P. Ramachandran, P. Annamaa, R. Gaddi, P. Tornatta, L. Morrell, C. Schepens","doi":"10.1109/LAPC.2013.6711919","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711919","url":null,"abstract":"In this paper we present a tunable PIFA which can be used in a mobile terminal. A NanoMech™ process enabled MEMS digital variable capacitor has been used as a capacitive load to the antenna. The antenna occupies a volume of just 1.3 cc and is targeted to be placed at the bottom corner of the device. With the help of tunability the antenna is able to cover from 704-960MHz in the low-band and 1710-2170MHz in the high-band, thus covering a wide range of frequency bands required for GSM/WCDMA/LTE systems. The MEMS device has an equivalent series inductance of less than 0.1nH hence the variation in the capacitance value with respect to frequency is less than 10%up to 5GHz. Further, the equivalent series resistance (ESR) of the digital variable capacitor is <;0.4Ω across the whole frequency range of interest, hence causing very low insertion loss to the antenna. The tunable antenna is characterized by measuring it in 3D anechoic chamber. The measured total efficiency of the antenna varies from -4 to -2dB for 700MHz-960MHz and -3dB to -2dB for 1710-2170MHz.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127048031","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: 7
A 60GHz, linearly polarised, 16dBi coaxial slot array antenna 60GHz，线性极化，16dBi同轴槽阵天线
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711901
T. Quinlan, S. Walker
{"title":"A 60GHz, linearly polarised, 16dBi coaxial slot array antenna","authors":"T. Quinlan, S. Walker","doi":"10.1109/LAPC.2013.6711901","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711901","url":null,"abstract":"Developed from Leaky Feeder cable designs; this slotted antenna array design operates over a frequency range between 57GHz and 64GHz with a gain over this bandwidth varying from 10dBi to 16dBi. The design utilizes the properties of commercially available high frequency semi rigid coaxial cable and the associated, high packing density, proprietary connector system. Here we describe a versatile radiating element that could either be used as a stand-alone antenna or as part of an array configuration.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115378589","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
Outdoor coverage & capacity estimation in small cells with a 3D ray tracing model 使用3D光线跟踪模型估算小型小区的室外覆盖和容量
2013 Loughborough Antennas & Propagation Conference (LAPC) Pub Date : 2013-11-01 DOI: 10.1109/LAPC.2013.6711846
Z. Al-Daher, L. Ivrissimtzis, A. Hammoudeh
{"title":"Outdoor coverage & capacity estimation in small cells with a 3D ray tracing model","authors":"Z. Al-Daher, L. Ivrissimtzis, A. Hammoudeh","doi":"10.1109/LAPC.2013.6711846","DOIUrl":"https://doi.org/10.1109/LAPC.2013.6711846","url":null,"abstract":"A computationally efficient ray tracing model is developed and implemented for three-dimensional (3D) coverage analysis and predictions, as well as for MIMO capacity estimation within small urban cells of cellular mobile networks, where the radio base station (RBS) antenna height can be below the average roof-top level. Field strength calculations involve reflected, diffracted, doubly-reflected and reflected-diffracted rays, as well as higher order terms, in addition to a direct field in free space, appropriately attenuated through buildings in shadowed regions. The field transfer functions obtained from field and EMF calculations can be employed to assess improvement in diversity gain and capacity improvement in systems employing MIMO spatial multiplexing, particularly in low coverage areas. The 3D propagation geometry is modelled by a triangular mesh derived from the transformation and processing of high resolution digital LIDAR data. The computations are validated with comparisons against mobile measurements at 2.4GHz along different routes within selected site topographies.","PeriodicalId":206296,"journal":{"name":"2013 Loughborough Antennas & Propagation Conference (LAPC)","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116386256","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
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