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A CPW fed X-Band antenna for satellite & radar applications 一种用于卫星和雷达应用的CPW馈电x波段天线
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733465
A. Tripathi, B. K. Singh
{"title":"A CPW fed X-Band antenna for satellite & radar applications","authors":"A. Tripathi, B. K. Singh","doi":"10.1109/ICMAP.2013.6733465","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733465","url":null,"abstract":"This paper presents the analysis of simple, compact, CPW- fed monopole aperture antenna with 10dB return loss (VSWR<;2) band from 8 GHz to 12GHz for X-band applications. The antenna includes ground plane, rectangular slot and a crossed rectangular exciting stub. The antenna is very simple and easy to fabricate. The proposed antenna is designed on an inexpensive FR4_Epoxy substrate with dielectric constant of εr =4.4 and with the size of 30mm×25mm×1.5mm The fundamental parameters of the antenna such as bandwidth return loss, radiation pattern, and gain are obtained All justifies the acceptable antenna standards. Simulation tool, based on the finite element method (HFSS V 13.0) has been used to analyze and optimize the proposed antenna Antenna is applicable for radar and satellite communication system It covers complete X-band (8-12) GHz and having the efficiency of 97%.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125018610","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: 13
CPW-fed broadband circularly polarized microstrip rectangular slot antenna with circular shaped tuning stub 带圆形调谐根的cpw馈电宽带圆极化微带矩形槽天线
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733476
Rohit Kumar Saini, S. Dwari
{"title":"CPW-fed broadband circularly polarized microstrip rectangular slot antenna with circular shaped tuning stub","authors":"Rohit Kumar Saini, S. Dwari","doi":"10.1109/ICMAP.2013.6733476","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733476","url":null,"abstract":"In this paper a rectangular slot antenna fed by coplanar waveguide (CPW) with circular shaped tuning stub for broadband circular polarization is presented. Two circular metallic arcs shaped grounded perturbation are introduced at diagonally opposite corners of the rectangular slot to obtain circular polarization with wide axial ratio bandwidth. This slot antenna has been designed and optimized on a FR4 substrate with dielectric constant εr= 4.3 and substrate thickness h=1.53mm. The simulated results of this antenna show impedance bandwidth 151.64% from frequency range 1.93GHz to 14.06GHz at VSWR ≤ 2 throughout this band and axial ratio band width 32.68% from frequency range 3.7GHz to 5.14GHz. The simulated radiation patterns of this antenna are Omni-directional in H-plane and Bi-directional in E-plane. The effect of variation in radius of metallic arcs on impedance bandwidth and axial ratio bandwidth has also been analyzed using HFSS Simulator. The proposed antenna can be easily integrated with radio-frequency/ Microwave Circuitry with low manufacturing cost.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125864956","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
Silicon photonic slot guides for nonlinear optics 非线性光学用硅光子槽波导
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733451
A. Mickelson
{"title":"Silicon photonic slot guides for nonlinear optics","authors":"A. Mickelson","doi":"10.1109/ICMAP.2013.6733451","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733451","url":null,"abstract":"The ultimate goal of nonlinear optics has been all-optical systems in which processing (logic) functions work in tandem with interconnections to carry out processing without electrical conversion. Laser-based nonlinear optics was already demonstrated in the 1961 [1], only months after the 1960 demonstration of the ruby laser [2]. Nonlinear optics has a rich history extending to the present. The reality of nonlinear optics is that electronic based nonlinearities are fast (subpicosecond) but require large electromagnetic fields. Plasmonics and strongly guiding optics (in the present case, silicon photonics) promise nanometric confinement and even guidance of intense optical fields over significant (many wavelength) distances. The optical field enhancement that can be obtained by strong guidance can be sufficient to achieve the magnitudes necessary for nonlinear optics with compact (chip-level) sources.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122711848","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
Multiple scale analysis of low index subwavelength slot waveguide electrooptic modulator 低折射率亚波长缝隙波导电光调制器的多尺度分析
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733520
V. Priye, A. Mickelson
{"title":"Multiple scale analysis of low index subwavelength slot waveguide electrooptic modulator","authors":"V. Priye, A. Mickelson","doi":"10.1109/ICMAP.2013.6733520","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733520","url":null,"abstract":"Multiple scale analysis of slot waveguide electrooptic modulator of few nanometer width and lower refractive index than the adjacent waveguides is presented for the first time to predict phase modulation due to variation in the refractive index in the slot by application of external voltage. The effect of different electrooptic coefficient pertaining to diverse polymers on voltage required for π phase change is investigated. Phase modulation and corresponding intensity modulation for practical waveguide configuration is theoretically demonstrated.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122997697","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
Hexagonal bandpass filter using open end step impedance stub perturbation 采用开端阶跃阻抗短段摄动的六方带通滤波器
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733473
L. Murmu, G. Singh, Sushrut Das
{"title":"Hexagonal bandpass filter using open end step impedance stub perturbation","authors":"L. Murmu, G. Singh, Sushrut Das","doi":"10.1109/ICMAP.2013.6733473","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733473","url":null,"abstract":"A novel dual-mode hexagonal loop resonator bandpass filter with a step impedance open-end stub perturbation is proposed along with possible applications. It is shown that different responses can be realized using only a single dual-mode resonator by changing the parameters of the perturbation. As compared to rectangle and square counterparts the interior angles are large in hexagonal geometry which promises better confinement in the microstrip circuits. The structure is very simple, easy to fabricate and useful for communication system.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128248856","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
Effect of codoping of Zn2+ ion on the upconversion of Er3+-Yb3+ codoped Y2O3 phosphor Zn2+离子共掺杂对Er3+-Yb3+共掺杂Y2O3荧光粉上转换的影响
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733547
Riya Dey, A. Pandey, V. K. Rai
{"title":"Effect of codoping of Zn2+ ion on the upconversion of Er3+-Yb3+ codoped Y2O3 phosphor","authors":"Riya Dey, A. Pandey, V. K. Rai","doi":"10.1109/ICMAP.2013.6733547","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733547","url":null,"abstract":"The frequency upconversion emission from Er<sup>3+</sup>-Yb<sup>3+</sup> codoped Y<sub>2</sub>O<sub>3</sub> phosphor synthesized by low temperature, urea assisted combustion technique has been studied upon excitation at 980 nm diode laser. The effect of incorporation of Zn<sup>2+</sup> ion on upconversion (UC) emission bands around 409 nm, 523 nm, 551 nm, 661 nm arises due to the transitions <sup>2</sup>H<sub>9/2</sub> → <sup>4</sup>I<sub>15/2</sub>, <sup>2</sup>H<sub>11/2</sub> → <sup>4</sup>I<sub>15/2</sub>, <sup>4</sup>S<sub>3/2</sub> → <sup>4</sup>I<sub>15/2</sub> and <sup>4</sup>F<sub>9/2</sub> → <sup>4</sup>I<sub>15/2</sub> of Er<sup>3+</sup> ions have been investigated. The basic mechanism involved in UC process and reason of intensity enhancement on Zn<sup>2+</sup> codoping have been explained by energy level structure and decay time analyses. The present study indicates that the developed phosphors may be of significant interest for use in photonic applications.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129159426","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
Compact microstrip antenna loaded with T-shaped slots 装有t形槽的紧凑型微带天线
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733495
Abhishek Sharma, B. Kanaujia, Sachin Kumar
{"title":"Compact microstrip antenna loaded with T-shaped slots","authors":"Abhishek Sharma, B. Kanaujia, Sachin Kumar","doi":"10.1109/ICMAP.2013.6733495","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733495","url":null,"abstract":"A compact circular microstrip antenna loaded with T-shaped slot is presented. The same antenna is then enclosed in a metallic cavity to achieve further compactness. A 50% compactness is achieved using cavity backed configuration when compared with conventional circular microstrip antenna. Alternatively, miniaturization is also achieved by employing symmetry with respect to the feed-axis and using only half of the antenna configuration. The effect of notch and slot length on the resonant frequency is also investigated and observed that the resonant frequency of the antenna can be varied simply by varying either the notch length or the slot length.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130154244","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
Modeling of High Temperature Superconducting Coplanar Waveguides for microwave propagation under a magnetic field 磁场作用下微波传播的高温超导共面波导模型
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733510
J. Andrews, V. Mathew
{"title":"Modeling of High Temperature Superconducting Coplanar Waveguides for microwave propagation under a magnetic field","authors":"J. Andrews, V. Mathew","doi":"10.1109/ICMAP.2013.6733510","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733510","url":null,"abstract":"The microwave propagation through a High Temperature Superconducting (HTS) Coplanar Waveguide (CPW) exposed to a magnetic field is simulated for a wide range of temperature, applied field and transmission line geometry. The magnetic field effects of a HTS coplanar waveguide is studied using the modified two-fluid model proposed by Coffey and Clem (CC). The surface impedance of the high temperature superconducting strip is determined using the CC model. This enters as the complex valued resistive boundary condition and by using the Galerkin's procedure, we study the propagation parameters and the unloaded Q value of the coplanar waveguide. The spectral domain dyadic Green's functions for the transmission line are formulated by treating coplanar waveguide as a coupled slotline. The results are in tune with the vortex dynamics explored by CC model. The simulation of transmission characteristics of the coplanar waveguide in the microdimensions shows lower dispersion and attenuation. The variations in signal transmission are explained using the vortex effects.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127002282","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
End fed iris excited centered slotted array antenna design with mutual coupling correction 具有互耦校正的端馈虹膜激励中心槽阵天线设计
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733459
S. Chatterjee, D. R. Poddar, Arijit Majumder
{"title":"End fed iris excited centered slotted array antenna design with mutual coupling correction","authors":"S. Chatterjee, D. R. Poddar, Arijit Majumder","doi":"10.1109/ICMAP.2013.6733459","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733459","url":null,"abstract":"A design of eight element end fed asymmetric iris excited centered slotted array antenna is presented in this paper. Mutual coupling effect is corrected by detuning the array elements within its dynamic range, relative to iris design parameters. Improved optimized design proposes -33.53dB of first side lobe level at design frequency of 10GHz and 14.90dB gain is observed. Relative magnitude of field distribution on slot surfaces and corresponding radiated power is also reported as a consequence of optimized design parameter.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114211149","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
Large array synthesis using Invasive Weed Optimization 入侵杂草优化的大阵列合成
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733486
L. Pappula, D. Ghosh
{"title":"Large array synthesis using Invasive Weed Optimization","authors":"L. Pappula, D. Ghosh","doi":"10.1109/ICMAP.2013.6733486","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733486","url":null,"abstract":"This paper discusses the application of nature-inspired optimization techniques for the synthesis of large arrays of antennas. Here the technique of Invasive Weed Optimization (IWO) is chosen for the optimization of the amplitude and/or phase of the excitation at the individual elements of the array. The result of such optimization is performance improvement of the array in terms of minimization of sidelobe levels (SLL) and positioning of nulls at desired locations as compared to the uniformly excited linear array. It is seen that even large arrays of 100 elements can be effectively synthesized using this proposed algorithm.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125795407","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: 12
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