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2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)最新文献

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A System Stability Analysis for a Time-delayed Four Meander Line Antenna Legs Birdcage for Helicon Excitation with Titanium Alloy and Copper Legs 钛合金-铜支腿螺旋激励延时四曲线天线支腿鸟笼系统稳定性分析
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958056
O. Aluf, Netanya, Israel
{"title":"A System Stability Analysis for a Time-delayed Four Meander Line Antenna Legs Birdcage for Helicon Excitation with Titanium Alloy and Copper Legs","authors":"O. Aluf, Netanya, Israel","doi":"10.1109/COMCAS44984.2019.8958056","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958056","url":null,"abstract":"A four meander line antenna legs birdcage for helicon excitation with titanium alloy and copper legs is used in many applications. Helicon waves are electromagnetic waves which propagate in magnetized plasma. An approach for helicon plasma source improvement consists in optimizing helicon wave excitation by means of specific antenna designs. The antenna is composed of N1 identical meander line antenna legs equally distributed on a cylinder of radius Rc. We consider an $mathrm{N}_{1}=4$ design. Due to the RF antenna leg parasitic effect we get each leg’s current with delay $tau_{k}$ (k is a leg number index, $mathrm{k}=1,ldots,4$). For simplicity, we assume all time delays are equal, $tau_{k}=tau$ for $k = 1$, 2, 3, 4. We present a practical guide which combines graphical information with theoretical analysis to effectively study the local stability of models involving delay dependent parameters. The stability of a given steady state is determined by the graphs of some function of $tau$.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125551044","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
MMW Wireless Communication System Based On QPSK Format Using Photomixer and Coherent Detection 基于Photomixer和相干检测的QPSK格式毫米波无线通信系统
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958192
Wudu Asemahegn Asi, R. Daniel, Abramovich Amir
{"title":"MMW Wireless Communication System Based On QPSK Format Using Photomixer and Coherent Detection","authors":"Wudu Asemahegn Asi, R. Daniel, Abramovich Amir","doi":"10.1109/COMCAS44984.2019.8958192","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958192","url":null,"abstract":"Millimeter wave (MMW) frequencies (30 - 300 GHz) are promising solution for the increasing demand for high data rate, UHD multimedia, HD gaming, security and surveillance. The generation of CW signal at MMW band and above is essential. We experimentally demonstrate MMW wireless communication system at W-band (75 - 110 GHz) with on-off keying (OOK) modulation format using optical heterodyning technique and digital coherent detection. The generation of MMW carrier signal and the wireless photonic transmission system enabled by using commercial off-the-shelf, ultra wideband and antenna integrated InGaAs p-i-n photomixer. The MMW carrier signal received and detected using Schottky barrier diode (SBD) integrated with MMW antenna.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114886611","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
Method of Total Fields for Diffraction Problems between Different Media 不同介质间衍射问题的总场法
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958085
H. D. Basdemir
{"title":"Method of Total Fields for Diffraction Problems between Different Media","authors":"H. D. Basdemir","doi":"10.1109/COMCAS44984.2019.8958085","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958085","url":null,"abstract":"In this present study a new method which gives the scattered field by a canonical structure between two different media is introduced. This method is applied to the half-plane with soft boundary condition. The fields are examined numerically. Thus, numerical analysis showed that the proposed method is suitable for these kinds of problems.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"349 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122714799","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
Quantum Noise Radar: Assessing Quantum Correlations 量子噪声雷达:评估量子相关性
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958223
D. Mogilevtsev, I. Peshko, I. Karuseichyk, A. Mikhalychev, A. Nizovtsev, G. Slepyan, Amir Boag
{"title":"Quantum Noise Radar: Assessing Quantum Correlations","authors":"D. Mogilevtsev, I. Peshko, I. Karuseichyk, A. Mikhalychev, A. Nizovtsev, G. Slepyan, Amir Boag","doi":"10.1109/COMCAS44984.2019.8958223","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958223","url":null,"abstract":"We suggest overcoming the \"Rayleigh catastrophe\" and reaching superresolution for imaging with both spatially and temporally-correlated field of a superradiant quantum antenna. Considering far-field radiation of two interacting spontaneously emitting two-level systems, we show that for the measurement of the temporally-delayed second-order correlation function of the scattered field, the Fisher information does not tend to zero with diminishing the distance be-tween a pair of scatterers even for non-sharp time-averaged detection. For position estimation of a larger number of scatterers, measurement of the time-delayed function is able to provide a considerable accuracy gain over the zero-delayed function. We show also that the superresolution with the considered quantum antenna can be achieved for both near-field imaging and estimating parameters of the antenna.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114449767","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
Depolarization Diversity 去极化多样性
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958081
A. Frid, Y. Ben-Shimol, N. Blaunstein
{"title":"Depolarization Diversity","authors":"A. Frid, Y. Ben-Shimol, N. Blaunstein","doi":"10.1109/COMCAS44984.2019.8958081","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958081","url":null,"abstract":"Depolarization of EM waves in terrestrial communication links has been poorly researched. The main source of knowledge to this field comes from Stokes parameters and various field tests results. This paper presents an innovative analytical approach to this topic, providing a sufficient way of predicting the polarization of EM waves. This can be used to reduce polarization losses in receiving antennas, hence, more effective data transmission can be achieved. This paper makes use of the waves total intensity and derives probability functions for parameters of the spatial polarization ellipse.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121880826","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
Electric Field Array Detector for Millimeter Wave Assistance on Brain Tumor Resection 毫米波辅助脑肿瘤切除的电场阵列探测器
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958179
V. Cardoso, H. Dinis, P. Mendes
{"title":"Electric Field Array Detector for Millimeter Wave Assistance on Brain Tumor Resection","authors":"V. Cardoso, H. Dinis, P. Mendes","doi":"10.1109/COMCAS44984.2019.8958179","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958179","url":null,"abstract":"One of the problems associated with brain cancer resection surgeries is the difficulty in distinguishing the tumor from brain parenchyma. Therefore, it is important to find new methods that increase the resection degree, reducing tumor recurrence. Human tissues have a frequency-specific response and laboratory measurements have been demonstrated to detect tumors using low frequency waves. With the use of electromagnetic waves working at 60 GHz, this paper aims to show an effective way to distinguish tumor cells from the surrounding brain parenchyma, based on the difference between dielectric properties of the two tissues. This goal is achieved through the analysis of electric field patterns.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128694541","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
Scattering by an all-dielectric metasurface including a periodic arrangement of arbitrary scatterers 包括任意散射体周期性排列的全介电超表面的散射
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958400
Dimitrios Gerontitis, N. Tsitsas
{"title":"Scattering by an all-dielectric metasurface including a periodic arrangement of arbitrary scatterers","authors":"Dimitrios Gerontitis, N. Tsitsas","doi":"10.1109/COMCAS44984.2019.8958400","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958400","url":null,"abstract":"An all-dielectric metasurface containing a periodic arrangement of dielectric scatterers is considered. The problem of plane-wave scattering by this metasurface is analyzed by developing and employing a rigorous entire-domain integral-equation methodology. This methodology is fast and accurate and can aid relevant optimizations of the associated parameters. Numerical results are reported for the variations of the reflection and transmission coefficients.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123863200","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
Modeling the thermal performance of a packaged MEMS thermal sensor at wide pressure range for IoT applications 在物联网应用的宽压力范围内对封装MEMS热传感器的热性能进行建模
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958080
Moshe Avraham, A. Shabtay, Dima Shlenkevitch, S. Stolyarova, Tanya Blank, Y. Nemirovsky
{"title":"Modeling the thermal performance of a packaged MEMS thermal sensor at wide pressure range for IoT applications","authors":"Moshe Avraham, A. Shabtay, Dima Shlenkevitch, S. Stolyarova, Tanya Blank, Y. Nemirovsky","doi":"10.1109/COMCAS44984.2019.8958080","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958080","url":null,"abstract":"This paper focuses on the thermal performance of a wafer level packaged MEMS thermal sensor, where the pressure varies between deep vacuum (0.1 Pa) and atmospheric pressure. The simulations are based on commercial software and are corroborated by modeling and measurements. There is a good agreement between the measured experimental data for the thermal time constant and the modeling and simulations.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123959221","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 and Analysis of Single Beam Parabolic Reflector Antenna in LTCC for Millimeter Wave Automotive Radar 毫米波汽车雷达LTCC单波束抛物反射面天线的设计与分析
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958132
Donghee Park
{"title":"Design and Analysis of Single Beam Parabolic Reflector Antenna in LTCC for Millimeter Wave Automotive Radar","authors":"Donghee Park","doi":"10.1109/COMCAS44984.2019.8958132","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958132","url":null,"abstract":"Abstract This paper designs and analyzes radar antenna for automobiles that can operate at 24 GHz and 77 GHz. This radar antenna is designed on LTCC substrate for highly integrated module. The LTCC substrate has a reflector at an arbitrary position to improve the antenna patterns. The pattern of the reflector antenna has dual beam characteristics that the central portion of the pattern is reduced. Therefore, this paper adds an air layer to the LTCC substrate to improve this disadvantage. As a result, the pattern has been improved to have a single beam characteristic. This paper designs and analyzes a single beam offset parabolic reflector(OPR) antenna for a highly integrated module that can operate in the millimeter wave. This paper also suggests the possibility of integration of monopole antennas for short and long distance radar systems.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123225511","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
Optically switchable scanning antenna 光切换扫描天线
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958040
A. Mikhailovskaya, D. Dobrykh, A. Slobozhanyuk, D. Filonov, P. Ginzburg
{"title":"Optically switchable scanning antenna","authors":"A. Mikhailovskaya, D. Dobrykh, A. Slobozhanyuk, D. Filonov, P. Ginzburg","doi":"10.1109/COMCAS44984.2019.8958040","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958040","url":null,"abstract":"The ability to obtain dynamical control over an antenna radiation pattern is one of the main functions, desired in a vast range of applications, including wireless communications, radars and many others. Widely used approaches include mechanical scanning with antenna apertures and phase switching in arrays. Both of those solutions have severe limitations, related to scanning speeds and implementation costs. Here we propose and experimentally demonstrate a possible paradigm solution, where the antenna pattern switching is achieved with optical signals. Our architecture employs high quality ceramic-based driven element and optically switchable reflectors. The latter elements are realized with a set of split ring resonators, loaded with a tandem of varactors and photodiodes. Resonant frequency of each reflector is controlled with an incident light illumination. Fast switching between optically driven reflectors allows achieving scanning between several directions, which cover the entire 2π azimuth section. The current architecture can link to a new paradigm shift, where extremely fast optical switching can allow performing high quality scans over the whole three-dimensional space, which is highly demanded in a broad range of modern applications.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116353463","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
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