发布求助
文献互助 智能选刊 最新文献

2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)最新文献

筛选
英文 中文
Modulational instability characteristics for few cycle pulse propagation in cascaded-quadratic-cubic-quintic nonlinear media 级联-二次-三次-五次非线性介质中脉冲传输的调制不稳定性
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489786
K. K. De, Ritu Pal, C. N. Kumar, T. S. Raju
{"title":"Modulational instability characteristics for few cycle pulse propagation in cascaded-quadratic-cubic-quintic nonlinear media","authors":"K. K. De, Ritu Pal, C. N. Kumar, T. S. Raju","doi":"10.1109/ICMOCE.2015.7489786","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489786","url":null,"abstract":"Using phase amplitude ansatz method and standard linear stability analysis, we have investigated modulational instability (MI) for the ultrashort pulse propagation in cascaded quadratic-cubic-quintic nonlinear media. Propagation of wave has been described beyond the slowly varying envelope approximation (SVEA). Controlling the generation of frequency side-bands and hence desired pulse, through engineering of different parameters are being explored.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121027109","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
Nonlinear optical cryptosystem free from amplitude-phase retrieval attacks 非线性光学密码系统免受幅度相位恢复攻击
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489683
Gaurav Verma, A. Sinha
{"title":"Nonlinear optical cryptosystem free from amplitude-phase retrieval attacks","authors":"Gaurav Verma, A. Sinha","doi":"10.1109/ICMOCE.2015.7489683","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489683","url":null,"abstract":"We present a new optical image encryption method using nonlinear cryptosystem to make it resistant against the amplitude phase retrieval algorithm. In order to enhance the security features, pixel scrambling is introduced into the image encryption process, in which cascaded two steps of phase-truncated Fourier-transform are used. In the proposed scheme, three phase only masks are used as the decryption keys with the scrambling key used for retrieving the input information. To measure the efficacy of the proposed nonlinear cryptosystem, mean square error is calculated for the decryption process.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128372938","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
Spectral, temporal and spatial domain analysis of a compact floral-shaped UWB monopole antenna 紧凑型花形超宽带单极天线的频谱、时域和空域分析
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489743
S. Beegum, S. Mishra
{"title":"Spectral, temporal and spatial domain analysis of a compact floral-shaped UWB monopole antenna","authors":"S. Beegum, S. Mishra","doi":"10.1109/ICMOCE.2015.7489743","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489743","url":null,"abstract":"A simple and compact printed floral-shaped monopole antenna (FMPA) for Ultrawideband (UWB) applications is proposed. Printed monopole antennas fabricated on a substrate offer impedance band width, which can cover UWB. However, radiation pattern varies significantly over the bandwidth. The cross polar component increases with frequency and the pattern degrades from the desired omnidirectional characteristics. Thus, it is required to analyse and investigate all the antenna characteristics of wide band antennas meticulously. The proposed antenna is fed by a 50Ω CPW feed line and fabricated on RT/ Duroid substrate having dimensions 20 mm × 25.5 mm × 0.787 mm. The measured S11 is ≤ -10 dB over 3.4-13.4 GHz. The antenna shows acceptable gain flatness with nearly omnidirectional radiation patterns over UWB frequency bands. Also other spectral, temporal and spatial domain parameters i.e. group delay, transfer function, fidelity factor, pattern stability factor (PSF) of proposed structure are analysed and reported.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126115045","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
Noise characterization of Silicon-Germanium HBTs 硅-锗HBTs的噪声特性
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489747
R. K. Nanda, Tara Prasanna Dash, Sanghamitra Das, C. K. Maiti
{"title":"Noise characterization of Silicon-Germanium HBTs","authors":"R. K. Nanda, Tara Prasanna Dash, Sanghamitra Das, C. K. Maiti","doi":"10.1109/ICMOCE.2015.7489747","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489747","url":null,"abstract":"Coupled process and device simulations have been applied to study the microwave noise performance of high frequency Silicon-Germanium heterojunction bipolar transistors. The detrimental effects of noise in advanced strain-engineered bipolar devices with highly scaled device dimensions are discussed in detail. Y-parameter based technique has been used to extract the noise parameters of bipolar transistors to account for the correlation between the base and collector shot noise.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122249276","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
Study and analysis of microstrip antenna system on square body for telemetry applications 遥测用方体微带天线系统的研究与分析
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489718
V. Rao, Vipin W. Paradkar, C. Satyanarayana
{"title":"Study and analysis of microstrip antenna system on square body for telemetry applications","authors":"V. Rao, Vipin W. Paradkar, C. Satyanarayana","doi":"10.1109/ICMOCE.2015.7489718","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489718","url":null,"abstract":"In this paper, study and analysis of S Band microstrip antenna system mounted on square body for onboard telemetry applications are presented with simulated and measured results. Microstrip antennas characteristics have been studied by placing on square body. In this study, antenna system consists of two antennas in array configuration to get quasi isotropic coverage. This antenna is flush with the surface of the square body. The antenna requires dielectric cover over radiating portion to provide the protection from heat, physical damage and other environment etc. This design is very useful for onboard Telemetry application. This type of antenna configuration is mostly useful in applications like missiles, aircrafts, spacecrafts, satellites etc. The proposed antenna is designed, simulated and optimized by using HFSS simulation software. The radiation pattern measurement of single antenna as well as two element array mounted on square body is carried out at S Band frequency.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"389 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129425580","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
Evaluation of bandwidth extension of telephony speech by data hiding in three languages 三种语言数据隐藏对电话语音带宽扩展的评价
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489766
N. Prasad, T. Kumar
{"title":"Evaluation of bandwidth extension of telephony speech by data hiding in three languages","authors":"N. Prasad, T. Kumar","doi":"10.1109/ICMOCE.2015.7489766","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489766","url":null,"abstract":"Telephone systems commonly transmit narrowband (NB) speech with a bandwidth limited to 200-3500 Hz. Since human speech contains frequencies even beyond the NB, there is a degradation of speech quality and intelligibility in such systems. This can be improved by regenerating the audible components existing outside the telephone bandwidth which are transmitted to the receiver by hiding them into the NB signal. In this paper, the performance of bandwidth extension (BWE) of telephony speech by data hiding method was assessed by auditory and instrumental tests in English, Hindi, and Telugu languages. The Data hiding method was found to improve the telephony speech quality and intelligibility in all the evaluated languages.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134315044","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
Frequency reconfigurable hourglass shaped microstrip antenna 频率可重构沙漏形微带天线
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489680
Debakanta Behera, Biswajit Dwivedy, D. Mishra, S. Behera
{"title":"Frequency reconfigurable hourglass shaped microstrip antenna","authors":"Debakanta Behera, Biswajit Dwivedy, D. Mishra, S. Behera","doi":"10.1109/ICMOCE.2015.7489680","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489680","url":null,"abstract":"A compact hourglass shaped microstrip antenna having frequency reconfiguring ability from 2.362 GHz to 2.525 GHz range is proposed. A varactor diode is used in the gap between the two segments of ground plane in order to achieve frequency agility. By varying the capacitance of the varactor diode, six operating frequencies 2.395 GHz, 2.435 GHz, 2.445 GHz, 2.455 GHz, 2.47 GHz and 2.495 GHz are achieved with impedance bandwidth of 2.92%, 2.42%, 2.46%, 2.40%, 2.45%, 2.45% and 2.44% respectively. The antenna exhibits stable omnidirectional radiation patterns with realized gain varying from 2.55 dB-1.05 dB for all the bands. These features make the antenna suitable for different wireless application standards like Wi-Fi (2.412 GHz-2.483 GHz), Bluetooth (2.402 GHz-2.48 GHz), WiMax (2.3 GHz-2.4 GHz) etc. The proposed antenna has compact dimensions of 0.44λ×0.25λ×0.013λ at 2.4 GHz frequency which is suitable for many handheld devices.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130033877","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
Development of low cost portable ARM processor based GCS data interface module for range sensors network 基于ARM处理器的低成本便携式距离传感器网络GCS数据接口模块的研制
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489694
Sharique Ali, Amit Sardar, Kamal Kumar Patra, Rakesh Barua
{"title":"Development of low cost portable ARM processor based GCS data interface module for range sensors network","authors":"Sharique Ali, Amit Sardar, Kamal Kumar Patra, Rakesh Barua","doi":"10.1109/ICMOCE.2015.7489694","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489694","url":null,"abstract":"The UAVs are controlled and monitored by ground pilot using GCS. The GCS provides the interfaces for controlling the flight of UAV through a customized console. The GCS serves two major purposes, firstly it packetizes the command word and sends it to the active antenna for transmitting it to UAV using uplink radio transmission and receives positional and health parameter using downlink. A Test Range is a facility with dedicated tracking sensors, communication systems, data processing unit and free air space for test and evaluatation of UAV system. For evaluation of the UAV, the onboard data should be communicated to the data processing unit. The data from the GCS varies in size, format and transmission modes form one UAV to another. Here we present a solution for interfacing the data processing unit with GCS using a ARM based board. The interface module is handy, low cost and needs low power.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130037675","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
Design and analysis of spiral circular inductors for GaN based low noise amplifier (MMICs) GaN基低噪声放大器(mmic)螺旋环形电感的设计与分析
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489749
S. Chander, K. Bansal, Samuder Gupta, Mridula Gupta
{"title":"Design and analysis of spiral circular inductors for GaN based low noise amplifier (MMICs)","authors":"S. Chander, K. Bansal, Samuder Gupta, Mridula Gupta","doi":"10.1109/ICMOCE.2015.7489749","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489749","url":null,"abstract":"This paper presents a novel approach for the design, analysis and optimization of spiral circular inductors to be fabricated on Silicon Carbide (SiC) substrate of thickness 100μm. These inductors are designed for use in Gallium Nitride (GaN) based Monolithic Microwave Integrated Circuits (MMICs) specifically for low noise amplifier circuits. On basis of the maximum figure of merit indicator FMI (Q × SRF/chip area) inductors of various strip-widths (μm) i.e. for 12, 16, 24 and 36 from 1 to 5 turns steps of 0.5 turns have been simulated using ADS (Advanced Design System) software. The maximum simulated Q-factor is 54 at 22 GHz and SRF is 46 GHz for 1-turn inductor of 12μm width with maximum figure of merit. The Q-factor is 23 at 2.8 GHz and SRF is 5.6 GHz for 5-turn inductor of strip-width 12μm. The inductance values vary from 0.46 nH for 1-turn to 5.6 nH for 5-turn inductor of strip-width 12μm.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"10 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132610106","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
Numerical study of randomly distributed wire based metamaterial absorber 随机分布金属丝基超材料吸收体的数值研究
2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI: 10.1109/ICMOCE.2015.7489698
A. Bhati, A. Shukla, Abhinandan Jain, K. Hiremath, V. Dixit
{"title":"Numerical study of randomly distributed wire based metamaterial absorber","authors":"A. Bhati, A. Shukla, Abhinandan Jain, K. Hiremath, V. Dixit","doi":"10.1109/ICMOCE.2015.7489698","DOIUrl":"https://doi.org/10.1109/ICMOCE.2015.7489698","url":null,"abstract":"In this article, randomly distributed wire based metamaterial absorber is designed and analyzed numerically in microwave frequency region. The metamaterial absorber is composed of randomly distributed metallic wire on lossy FR4 substrate backed with metallic plate. Twenty random coordinates are generated within a unit cell of absorber. Total forty wire elements are distributed, including twenty wires horizontally and twenty wires vertically, at these random coordinate in unit cell. The numerical result shows the bandwidth of absorber is 1.2 GHz and 2 GHz for 10 dB and 5 dB return loss respectively. The wire elements dimensions (width and thickness) are of 14 μm and 35 μm respectively. Observed multiple absorption peaks expected to correspond to the absorption modes excited by varied effective lengths of shortened randomly distributed metallic wires.","PeriodicalId":352568,"journal":{"name":"2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116437201","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信