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

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Electrically Driven Vacuum Rabi Oscillations as a Potential Quantum-Optical Device 电驱动真空拉比振荡作为一种潜在的量子光学器件
I. Levie, G. Slepyan
{"title":"Electrically Driven Vacuum Rabi Oscillations as a Potential Quantum-Optical Device","authors":"I. Levie, G. Slepyan","doi":"10.1109/COMCAS44984.2019.8958312","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958312","url":null,"abstract":"The dynamics of a charge bounded by a chain of coupled artificial atoms, interacting simultaneously with a single mode quantized electromagnetic field inside a cavity, and a constant electrostatic DC field is presented in this work. We develop an extended Jaynes-Cummings model describing this system and solve it both analytically and numerically, with good agreement between the two methods. It is shown that the charge-photon dressed state is modulated with the Bloch frequency due to the interaction with the DC field. This enables to control the quantum state of light by adiabatically changing the DC field. This novel effect might be important for the application of optical modulators, quantum computing and electrically controlled quantum antennas.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"279 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":"123425033","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
Detection of Water Inclusions in Honeycomb Composite Products by a Holographic Radar 蜂窝复合材料制品中水夹杂物的全息雷达检测
M. Chizh, A. Zhuravlev, V. Razevig, S. Ivashov
{"title":"Detection of Water Inclusions in Honeycomb Composite Products by a Holographic Radar","authors":"M. Chizh, A. Zhuravlev, V. Razevig, S. Ivashov","doi":"10.1109/COMCAS44984.2019.8958114","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958114","url":null,"abstract":"Detection of water inclusions in honeycomb composites is an urgent task during construction and operation of various aircrafts. This includes diagnostics of helicopter composite rotor blades, since the presence of moisture condensed in the internal air cavities leads to gradual development of cracks and results in blade deterioration, icing and imbalance. The imbalance of helicopter rotor blades may influence the comfort and safety of a flight, result in thrust loss and increased load in dynamic components caused by the helicopter vibration. Currently, restoring balance is a complex and time-consuming procedure under the operating conditions of a helicopter. This paper presents the results of detecting moisture inside the honeycomb structure of the blades using microwave holography, which can be used to simplify and speed up the procedure for their diagnosis and prevent imbalance.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"48 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":"121373590","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
Spatial Suppression of Jamming Signals in Extreme Conditions 极端条件下干扰信号的空间抑制
Y. Poberezhskiy, G. Poberezhskiy
{"title":"Spatial Suppression of Jamming Signals in Extreme Conditions","authors":"Y. Poberezhskiy, G. Poberezhskiy","doi":"10.1109/COMCAS44984.2019.8958015","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958015","url":null,"abstract":"Two methods of spatial suppression of jamming signals (JSs) in extreme conditions are described and analyzed. The first method protects a victim receiver (Rx) from and prevents disruption of signal reception by extremely strong JSs that can completely desensitize or even damage its input circuits. The second method protects a victim Rx with a moderate number of elements in its antenna array from a very large number of JSs. Although these methods significantly differ from each other as well as from conventional nulling, beamforming, and diversity combining, the similarity of the required hardware often allows their joint use with conventional techniques.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"103 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120904313","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
Optimization of transmitted power of horn antenna for biomedical applications 生物医学用喇叭天线发射功率优化
S. Rajput, K. Komoshvili, S. Aronov, Ayan Barbora, Praveen K. Patnaik, J. Levitan, A. Yahalom
{"title":"Optimization of transmitted power of horn antenna for biomedical applications","authors":"S. Rajput, K. Komoshvili, S. Aronov, Ayan Barbora, Praveen K. Patnaik, J. Levitan, A. Yahalom","doi":"10.1109/COMCAS44984.2019.8958339","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958339","url":null,"abstract":"Lung cancer is considered the deadliest type of cancer for humans and is often diagnosed at the incurable stage. Till now, no effective methods for early diagnosis and treatment of lung cancer have been developed. This short paper presents preliminary studies on millimeter-wave (MMW) effect on yeast cells. It is well known that yeasts are representative of human cells, in many aspects of fundamental cellular processes. Initially, transmitted power from the horn antenna is optimized for both near-field and far-field regions. The studies were performed for the W-band of MMWs (75-110 GHz). Preliminary studies suggested that the MMW radiations with a maximum incident power density do not alter the number of colonies of yeast cells.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"31 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":"123893891","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
Overview of High Frequency Electronics Integration Concepts for Gap waveguide based High Gain Slot Antenna Array 基于缝隙波导的高增益缝隙天线阵列高频电子集成概念综述
A. Zaman, A. Vosoogh, Jian Yang, V. Vassilev, H. Zirath
{"title":"Overview of High Frequency Electronics Integration Concepts for Gap waveguide based High Gain Slot Antenna Array","authors":"A. Zaman, A. Vosoogh, Jian Yang, V. Vassilev, H. Zirath","doi":"10.1109/COMCAS44984.2019.8958272","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958272","url":null,"abstract":"This paper presents an overview of different low-loss microstrip to waveguide transition designs suitable for integrating millimeter wave electronics to a gap waveguide based slot array. Typically, E-plane probe type of transitions are widely used at mmWave frequency range to couple RF signal from a TX/RX MMIC to the waveguide section. H-plane split-blocks are avoided due to leakage problem from tiny slits formed by imperfect metal connections. On the other hand, the traditional slot arrays are built using H-plane split blocks. This makes it very challenging to integrate electronics and other passive components such as diplexer filter directly to a high gain planar antenna array. To overcome this above mentioned problem, we propose to use low-loss H-plane transitions to integrate RF electronics with the multi-layer gap waveguide based slot array. We demonstrate a completely packaged frontend at E-band, showing the potential of the gap waveguide technology to build a very compact full-duplex wireless system.","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":"129048479","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
Early Diagnosis of Stroke and Internal Hemorrhage via Deep Neural Network Inference of Microwave Signals 基于微波信号的深度神经网络早期诊断脑卒中和内出血
Ofir Tal, Shye Shapira
{"title":"Early Diagnosis of Stroke and Internal Hemorrhage via Deep Neural Network Inference of Microwave Signals","authors":"Ofir Tal, Shye Shapira","doi":"10.1109/COMCAS44984.2019.8958136","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958136","url":null,"abstract":"A Compact automatic diagnostic system for internal hemorrhage is described. Utilizing microwave sensing and Deep Neural Network Inference, the technology detects brain stroke and internal abdominal hemorrhage. A sensitivity of 92.9% in detection of internal abdominal hemorrhage is demonstrated. A similar procedure leads to stroke detection with 90% sensitivity for hemorrhage larger than 0.5ml. Results establish the capability to accurately identify stroke and enable treatment with a compact autonomous system, outside the hospital environment.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"1 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":"128692232","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
Comparison of Two Convergent Numerical Methods for Solving the Problem of Wave-Scattering by a Dielectric Rod with a Conformal Strip of Graphene 求解含石墨烯共形条介质杆波散射问题的两种收敛数值方法的比较
Sergii V. Dukhopelnykov
{"title":"Comparison of Two Convergent Numerical Methods for Solving the Problem of Wave-Scattering by a Dielectric Rod with a Conformal Strip of Graphene","authors":"Sergii V. Dukhopelnykov","doi":"10.1109/COMCAS44984.2019.8958354","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958354","url":null,"abstract":"We consider the scattering of an H-polarized plane wave by an infinite circularly curved graphene strip of arbitrary angular width, placed at the dielectric rod. Our analysis is based on the two types of analytical methods. The first is a hypersingular integral equation for the current induced on the strip. Discretization of this equation is carried out by the Nystrom-type method that has a guaranteed convergence. The second is the method of analytical regularization (MAR), which uses explicit inversion of the static part of the problem. We perform numerical experiments demonstrating how the rate of convergence depends on truncation number and interpolation order. We compare these two methods and their errors as a function of frequency.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"23 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":"126857908","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
Modelling Large-Scale Signal Fading in Urban Environment Based on Fuzzy Inference System 基于模糊推理系统的城市环境大尺度信号衰落建模
S. Popoola, Atayero, B. Adebisi, Abigail Jefia, K. Ogbeide, Andy Gibson
{"title":"Modelling Large-Scale Signal Fading in Urban Environment Based on Fuzzy Inference System","authors":"S. Popoola, Atayero, B. Adebisi, Abigail Jefia, K. Ogbeide, Andy Gibson","doi":"10.1109/COMCAS44984.2019.8958229","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958229","url":null,"abstract":"Path loss models are veritable tools for estimation of expected large-scale signal fading in a specific propagation environment during wireless network design and optimization. In this paper, the capability of Adaptive Neuro-Fuzzy Inference System (ANFIS) to establish non-linear relationship between related variables was explored for path loss predictions at Very High Frequency (VHF) band in a typical urban propagation environment. Drive test measurements were conducted along various routes in the urban area to obtain terrain profile data and path losses of radio signals transmitted at 92.3 MHz and 189.25 MHz frequencies. ANFIS was modelled to predict the magnitude of large-scale signal fading (i.e. path loss) based on the longitude, latitude, distance and elevation of the receiver’s location. Fuzzy Inference System (FIS) was generated based on Fuzzy C-Means (FCM) and subtractive clustering methods. Model performance evaluation results showed that the ANFIS model developed based on FCM clustering method yielded the least prediction errors with a Root Mean Squared Error (RMSE) value of 0.88 dB. Whereas, the International Telecommunications Union Radiocommunication (ITU-R) had earlier set a maximum allowable RMSE value of 6 dB for urban propagation environments. Thus, ANFIS technique produced a very efficient largescale signal fading prediction model for VHF network design and optimization in urban areas.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"1 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":"126288417","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
Space-Time Coding through Time-Modulated Arrays - State-of-the-Art and Recent Trend/Advances 通过时调制阵列进行空时编码——最新技术和最新趋势/进展
P. Rocca, L. Poli, Shiwen Yang
{"title":"Space-Time Coding through Time-Modulated Arrays - State-of-the-Art and Recent Trend/Advances","authors":"P. Rocca, L. Poli, Shiwen Yang","doi":"10.1109/COMCAS44984.2019.8958447","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958447","url":null,"abstract":"This paper presents some recent advances in the synthesis of time-modulated arrays (TMA), focusing on the suitable optimization of the pulse sequences controlling the element excitations of the array for achieving constant instantaneous directivity. In particular, the synthesis of time- modulated linear arrays (TMLAs) taking into account the nonideal switches behavior and the electromagnetic coupling phenomena between real elements have been proposed as well as a study of the constant-directivity TMLAs used for enabling directional modulation for physical layer secure communications, by exploiting the replicas of the signal generated in the sideband radiation.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"31 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":"127189692","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
Spurious Detection and Cancellation Method for Millimeter Wave Heterodyne Transceiver Architecture 毫米波外差收发器结构的杂散检测与消除方法
Z. Du, K. Aronkytö
{"title":"Spurious Detection and Cancellation Method for Millimeter Wave Heterodyne Transceiver Architecture","authors":"Z. Du, K. Aronkytö","doi":"10.1109/COMCAS44984.2019.8958415","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958415","url":null,"abstract":"textbfA simple detecting and controlling circuit to measure and cancel the spurious emission of the millimeter wave heterodyne transceiver architecture is presented. In Time Division Duplex system, the spurious detection and cancellation operate in the receive time frame to avoid the interference in transmission. The test setup along with the exemplary algorithm for adjusting the parameters have been built and demonstrated using commercial-off-the-shelf components. The LO leakage has been reduced by 18.56 dB and 28.61 dB in 28 GHz and 39 GHz bands respectively. The proposed method enables the broadband tunable transceiver designs for the use cases with less stringent emission requirements.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"13 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114024699","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
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