发布求助
文献互助 智能选刊 最新文献

2019 IEEE MTT-S International Microwave and RF Conference (IMARC)最新文献

筛选
英文 中文
Interferometric Noise Reduction in Optoelectronic Oscillator with Roundtrip Optical Delay Line 双向光延迟线光电振荡器干涉降噪研究
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118668
Weijie Xu, Chun Yang, Ziye Wang
{"title":"Interferometric Noise Reduction in Optoelectronic Oscillator with Roundtrip Optical Delay Line","authors":"Weijie Xu, Chun Yang, Ziye Wang","doi":"10.1109/IMaRC45935.2019.9118668","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118668","url":null,"abstract":"A roundtrip optical delay line can double the time delay so that it can be used in optoelectronic oscillators (OEOs) to halve the length of the optical fiber. But in bidirectional optical links, the interferometric intensity noise is much higher than that in unidirectional optical link. The intensity noise will be converted to microwave phase noise via amplitude-to-phase conversion at photodetector. In this paper, we built an OEO using a roundtrip optical delay line and suppress the interferometric intensity noise by sweeping the frequency of the optical carrier realized by direct modulating the laser diode. In case of 100kHz modulation, the reduction of phase noise at 1kHz offset frequency is 26dB, and the phase noise of the generated 10GHz signal is -118dBc/Hz @ 1kHz and -136dBc/Hz @ 10kHz. In addition, The OEO was stabilized by injection and phase locked to a stable reference signal.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"331 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133273067","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
Machine-Learning for Classification of Naval Targets 海军目标分类的机器学习
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118614
Sangeetha S Sajjan, B. S, B. Choudhury, R. U. Nair
{"title":"Machine-Learning for Classification of Naval Targets","authors":"Sangeetha S Sajjan, B. S, B. Choudhury, R. U. Nair","doi":"10.1109/IMaRC45935.2019.9118614","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118614","url":null,"abstract":"Naval target classification is one of the prominent area of research in defence to safeguard ships and to provide guidelines for shipping channels. This work mainly explains the machine learning approach for naval target classification by examining the radar kinematics. The Artificial Neural Network (ANN) model is developed to classify various ship models. The Radar Cross-Section (RCS) data has been used for identification and classification of the naval target. The RCS database for ships are generated by simulating the open domain CATIA models.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115451084","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
Multi-chip Module Based GaAs MMICs Packaging for L-Band High Gain Application 基于多芯片模块的l波段高增益GaAs mmic封装
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118771
Ravi Gugulothu, S. Bhalke, A. A. Naik, L. K, R. Dasari
{"title":"Multi-chip Module Based GaAs MMICs Packaging for L-Band High Gain Application","authors":"Ravi Gugulothu, S. Bhalke, A. A. Naik, L. K, R. Dasari","doi":"10.1109/IMaRC45935.2019.9118771","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118771","url":null,"abstract":"this paper details a multi-chip module (MCM) suitable for GaAs monolithic microwave integrated circuit common control high gain block MCM package design, 3D EM simulation of the package, package fabrication and end module level execution, which includes assembly and testing under various environmental test conditions as per the space standards. This MCM package designed using three internally separated cavities for individual cavity isolation, 4-RF Ports, 10mil thin film microstrip line and optimized wire bonding interconnects, and the same package is EM simulated using a CST microwave studio. This package modelled and fabricated using kovar material. This MCM package proposed to house a chain of four amplifiers with a common gain of 69dB, 2 SPDT switches with insertion loss of 3.6dB, a digital attenuator with initial attenuation of 2.5dB with TTL driver and 2 thermopads of 3dB individual attenuation. This package resonating frequency is 7.484GHz. The packaged MCM measurements are carried out over a frequency of 1.1GHz-1.4GHz and resulted with S21 of 60dB, S11&S22 of better than 15dB and P1dB out of 15dBm.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117345858","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
MMIC based Up-converter for Ku-band Data Transmitter 基于MMIC的ku波段数据发射机上变频器
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118665
Prolay Verma, Anshul Joshi, Puja Srivastava, D. Singh, A. Bhattacharya, K. Parikh
{"title":"MMIC based Up-converter for Ku-band Data Transmitter","authors":"Prolay Verma, Anshul Joshi, Puja Srivastava, D. Singh, A. Bhattacharya, K. Parikh","doi":"10.1109/IMaRC45935.2019.9118665","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118665","url":null,"abstract":"This paper discusses design and realization of Amplifier and Sub-harmonic Mixer MMICs using 0.25µm GaAs/AlGaAs pHEMT process. This paper also discusses design and realization of Ku-band up-converter subsystem using these two MMICs for data transmitter applications on a single RF board developed using RT-Duroid 6002 substrate. On the same substrate, a wideband band reject filter MIC is also designed and realized. IF frequency of 375MHz (±125MHz) is up-converted to Ku-band frequencies, Band-1: 10.825GHz & Band-2: 11.327GHz using half of the required translation frequencies. The measured conversion gain of Ku-band up-converter is better than 4.5dB over both the bands, with gain flatness of 0.3dB, NF is less than 18dB and spurious response is less than -60dBc at input level of -15dBm. It weighs less than 240gms.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125982822","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
Slow Wave Spoof Plasmonic Metamaterial Based Multi-Band Band-Stop Filter Using Complementary Split Ring Resonators 基于互补分裂环谐振器的慢波欺骗等离子体超材料多带阻滤波器
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118762
Rahul Kumar Jaiswal, Nidhi Pandit, N. Pathak
{"title":"Slow Wave Spoof Plasmonic Metamaterial Based Multi-Band Band-Stop Filter Using Complementary Split Ring Resonators","authors":"Rahul Kumar Jaiswal, Nidhi Pandit, N. Pathak","doi":"10.1109/IMaRC45935.2019.9118762","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118762","url":null,"abstract":"In this paper, we report a slow wave spoof plasmonic metamaterial based multi-band band-stop filter using a series of complementary split ring resonator (CSRR). Trapezoidal shape loaded grooved stepped impedance resonators (GSIRs) is employed. Compared with the simple trapezoidal shape, the proposed GSIR based structure shows enhanced confinement of surface wave in the vicinity of the metal dielectric interface. In this work, a series of the CSRRs are etched in the ground plane of the developed spoof plasmonic based transmission line circuit, which creates multiple wideband stop-bands at center frequencies 2.6/3.8/5.25 GHz with corresponding rejection levels 40/19/21 dB and 10-dB bandwidths of 646/836/610 MHz respectively within the specified operating frequency range. To validate the concept, the aforementioned device has been fabricated and experimentally characterized. The above mentioned spoof plasmonic band-stop structure have potential application in plasmonic integrated circuits and systems including to develop various sensor.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124679233","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
On-chip Temperature Compensated 2.5GHz to 10GHz Multi-band LC-VCO Phase Locked Loop for Wireline Applications 片上温度补偿2.5GHz至10GHz多频段LC-VCO锁相环有线应用
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118737
Javed S. Gaggatur
{"title":"On-chip Temperature Compensated 2.5GHz to 10GHz Multi-band LC-VCO Phase Locked Loop for Wireline Applications","authors":"Javed S. Gaggatur","doi":"10.1109/IMaRC45935.2019.9118737","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118737","url":null,"abstract":"An on-chip temperature detection and compensation for a LC-VCO based phase locked loop is presented here. A temperature-sensitive current controlled oscillator based temperature sensor is used to measure the temperature around the phase locked loop (PLL). The effects of self heating and thermal coupling in RF circuits is demonstrated using a PLL. The LC-VCO PLL was designed in 65nm CMOS Low Power process. The output variation due to process variations and self-heating was reduced to 7.5%. The technique shows promise for compensation and correction in high frequency operating systems like millimeter-wave circuits where variations due to self-heating can vary the functional operation greatly.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129777819","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
Design of PIN Diode Based Six Channel Switched Harmonic Filter Bank and Antenna Switch for Software Defined Radio 基于PIN二极管的软件无线电六通道开关谐波滤波器组及天线开关的设计
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118667
C. K, V. L, Devindra M. C, Prakash S. P, K. Murthy
{"title":"Design of PIN Diode Based Six Channel Switched Harmonic Filter Bank and Antenna Switch for Software Defined Radio","authors":"C. K, V. L, Devindra M. C, Prakash S. P, K. Murthy","doi":"10.1109/IMaRC45935.2019.9118667","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118667","url":null,"abstract":"In this paper, the design and development of PIN Diode based Switched Harmonic filter bank with Antenna Switch in V/UHF band for software defined radio(SDR) application is reported. This Design consists of six lowpass filters covering VHF to UHF frequency band. The lowpass filter suppresses the higher order harmonics generated in power amplifier to permissible limits. These filters are switched/selected using SP6T switch which is designed using PIN diodes in series/shunt configuration. At the output of harmonic filter bank, PIN diode based Antenna(Transmit/Receive) switch is included. The switch has an insertion loss of 0.3dB with transmit to receive port isolation better than 50dB.The switch filter bank with Antenna switch is capable of handling 50W RF power. The design and simulation is carried out using RF simulation software. The design is implemented and tested. This paper elaborates on the design aspects, implementation & engineering of the switched harmonic filter bank with Antenna switch.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128621386","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
Comparative Analysis of Forest Biomass Estimation using SAR Tomographic Techniques 利用SAR层析成像技术估算森林生物量的比较分析
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118652
N. Ramachandran, S. Tebaldini, M. M. d'Alessandro, S. Saatchi, O. Dikshit
{"title":"Comparative Analysis of Forest Biomass Estimation using SAR Tomographic Techniques","authors":"N. Ramachandran, S. Tebaldini, M. M. d'Alessandro, S. Saatchi, O. Dikshit","doi":"10.1109/IMaRC45935.2019.9118652","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118652","url":null,"abstract":"The objective of this study is to assess and compare different above-ground biomass (AGB) estimation models for tropical forest using P-band SAR tomography. In this paper, we investigate (1) comparative performance of back-projection and Capon beamforming tomographic estimators to analyze the vertical structure of tropical forest 2) impact of terrain slope correction on tomogram reflectivity and AGB estimates 3) correlation of tomogram reflectivity at 30m to forest AGB using different models 4) possibility of using tomographic retrieved height to improve the AGB estimation. The performance of these models is evaluated using dataset acquired during TropiSAR 2009 by ONERA over the Paracou site.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129649024","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 Miniaturized Microwave Absorber based on Interdigital Capacitor and Lumped Resistance for X-Band Radome Applications 基于数字间电容和集总电阻的x波段天线罩小型化微波吸收器
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118662
G. Sen, Mukesh Kumar, S. Islam, Tannistha Mitra Das, Anumoy Ghosh, Santanu Das
{"title":"A Miniaturized Microwave Absorber based on Interdigital Capacitor and Lumped Resistance for X-Band Radome Applications","authors":"G. Sen, Mukesh Kumar, S. Islam, Tannistha Mitra Das, Anumoy Ghosh, Santanu Das","doi":"10.1109/IMaRC45935.2019.9118662","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118662","url":null,"abstract":"In this work, a polarization insensitive compact X-band microwave absorber with miniaturized electric field coupled (ELC) resonator is presented. The ELC resonator is integrated with interdigital capacitor for synthesis of miniaturized unit cell area. The structure is also loaded with lumped resistances to achieve wideband absorption. The absorption band with more than 90% absorption covers mostly X-band frequencies from 8.16 GHz to 12.16 GHz with relative absorption bandwidth (RAB) of 39%. The size of the unit cell is 0.16 λL × 0.16 λL and overall thickness of the structure is only 3 mm (0.08 λL, with respect to lowest resonance frequency). The simulated absorption performances of the proposed miniaturized absorber are analyzed for different incident and polarization angles and found to be insensitive and hence can be well suited for Radome application.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127958940","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 of Switchable Hairpin Band Pass Filters for Low Frequency Radio Astronomy 用于低频射电天文学的可切换发夹带通滤波器设计
2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI: 10.1109/IMaRC45935.2019.9118619
Imran Khan, Anil N Raut, S. Sureshkumar
{"title":"Design of Switchable Hairpin Band Pass Filters for Low Frequency Radio Astronomy","authors":"Imran Khan, Anil N Raut, S. Sureshkumar","doi":"10.1109/IMaRC45935.2019.9118619","DOIUrl":"https://doi.org/10.1109/IMaRC45935.2019.9118619","url":null,"abstract":"In this paper, we present a novel switched band pass filter bank designed using hairpin line topology. This new filter bank design is implemented to facilitate narrow bandwidth mode observations for the upgraded GMRT (uGMRT), as well as providing an option for filtering out strong radio frequency interference that may come up in some parts of the wideband system. Radio Astronomy today requires wideband frequency coverage for achieving higher sensitivity and frequency agility for varied nature of astrophysical observations. As part of a major upgrade, the Giant Metrewave Radio Telescope (GMRT) is going through an increase in the bandwidth coverage from 50 to 1500 MHz, with a maximum instantaneous bandwidth of 400 MHz for increasing the sensitivity of the telescope. As a part of this upgrade, the existing front-end receiver electronics is being modified by introducing wideband low noise amplifiers, octaveband polarizers with low insertion loss, low loss wideband directional couplers for noise injection, wideband filters and high dynamic range broadband post-amplifiers. Keyword: Filter Bank, Hairpin Microstrip filter, uGMRT.","PeriodicalId":338001,"journal":{"name":"2019 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126728489","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
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