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

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Innovative Machine Learning Techniques for Biomedical Imaging 生物医学成像的创新机器学习技术
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958253
M. Salucci, D. Marcantonio, Maokun Li, G. Oliveri, P. Rocca, A. Massa
{"title":"Innovative Machine Learning Techniques for Biomedical Imaging","authors":"M. Salucci, D. Marcantonio, Maokun Li, G. Oliveri, P. Rocca, A. Massa","doi":"10.1109/COMCAS44984.2019.8958253","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958253","url":null,"abstract":"Machine Learning (ML) is a powerful paradigm to solve several inverse problems arising in biomedical imaging with very high computational efficiency. As a matter of fact, learning-by-examples (LBE) strategies can be successfully exploited to predict the status of the domain under investigation (DoI) starting from measured data with almost real-time performance. Some recent advances of ML as applied to brain stroke detection, classification, and localization, as well as to human chest monitoring are presented. An illustrative example concerned with a novel LBE strategy for the real-time prediction of the lungs dimensions from electrical impedance tomography (EIT) measurements is given, as well.","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":"129687740","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
On the Optimal Positioning of Antennas in the Microwave Personnel Screening System with Inverse Synthetic Aperture 逆合成孔径微波人员筛选系统中天线优化定位研究
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958282
A. Zhuravlev, V. Razevig, G. Dong
{"title":"On the Optimal Positioning of Antennas in the Microwave Personnel Screening System with Inverse Synthetic Aperture","authors":"A. Zhuravlev, V. Razevig, G. Dong","doi":"10.1109/COMCAS44984.2019.8958282","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958282","url":null,"abstract":"In this paper we consider strategies of positioning of antennas in a new type of microwave personnel screening system, in which the motion of the subject in the vicinity of an antenna array could be used to create synthetic aperture required for obtaining high resolution radar images. For this purpose we simulate 2D point spread functions (PSF) of the screening system depending on the number of receive and transmit antennas in a horizontal section of the viewing geometry. Optimization is considered to find how positioning of a fixed number of transmit and receive antennas can improve PSF of the perspective radar system.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"122 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":"134594454","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
A 300GHz Quadrature Down-Converter S-MMIC for Future Terahertz Communication 面向未来太赫兹通信的300GHz正交下变频S-MMIC
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958300
I. Dan, C. Grötsch, B. Schoch, S. Wagner, L. John, A. Tessmann, I. Kallfass
{"title":"A 300GHz Quadrature Down-Converter S-MMIC for Future Terahertz Communication","authors":"I. Dan, C. Grötsch, B. Schoch, S. Wagner, L. John, A. Tessmann, I. Kallfass","doi":"10.1109/COMCAS44984.2019.8958300","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958300","url":null,"abstract":"This paper presents a highly broadband quadrature down-converter with a center frequency of 300GHz and a low-noise amplifier (LNA) with a bandwidth of 80GHz. The operation frequency between 235GHz and 315GHz enables the usage in future wireless high data rate applications. The submillimeter-wave monolithic integrated circuits (S-MMICs) are realized using a 35nm metamorphic high electron mobility transistor (mHEMT) technology based on InAlAs/InGaAs. The down-converter integrates a frequency multiplier by four, a buffer amplifier and a passive fundamental I/Q mixer and reaches a conversion gain of -15dB and an RF bandwidth of 60GHz. The low-noise amplifier has an average gain of 26dB over the 3dB bandwidth. A total conversion gain of the receiver of 11dB is therefore reached by combining the down-converter and the LNA.","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":"130858774","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
A Novel Sensor Based on Microstrip Patch Antenna for Detecting Different Gases in Circular Pipe 一种基于微带贴片天线的新型圆管内气体检测传感器
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958234
Yun Jie Mao, Qing Xu, Xu Shi, M. Tong
{"title":"A Novel Sensor Based on Microstrip Patch Antenna for Detecting Different Gases in Circular Pipe","authors":"Yun Jie Mao, Qing Xu, Xu Shi, M. Tong","doi":"10.1109/COMCAS44984.2019.8958234","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958234","url":null,"abstract":"Many industries need a robust sensor to detect and collect information. This paper proposes a sensor based on microstrip patch antennas which are fed by circular waveguide. It can not only realize the function of the antenna but also detect the information about gas as a sensor. When different gases pass through the circular pipe, due to the change of dielectric permittivity, the impedance characteristics of antenna change, which can cause the changes in resonant frequency, return loss, etc. Besides this sensor has advantages of real-time automatic detection, which can reduce the cost of time and manpower. When the inside of the pipe is vacuum, the reflection coefficient of the antenna is less than -20 dB at 24.4 GHz.","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":"131124214","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
U-Slot Dual-band Frequency Reconfigurable Patch Antenna Tuned With Commercial Ferroelectric BST capacitors. 用商用铁电BST电容器调谐的u槽双频可重构贴片天线。
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958124
M. Carballo, Dubari Borah, T. Kalkur
{"title":"U-Slot Dual-band Frequency Reconfigurable Patch Antenna Tuned With Commercial Ferroelectric BST capacitors.","authors":"M. Carballo, Dubari Borah, T. Kalkur","doi":"10.1109/COMCAS44984.2019.8958124","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958124","url":null,"abstract":"A U-slot dual-band frequency reconfigurable patch antenna is presented in this paper. The resonant frequencies of the antenna before loading with varactors are 1.3 GHz and 2.4 GHz. The tunability is achieved using p-n varactors and ferroelectric tunable capacitors. It is found that individual tuning for both frequency bands is possible depending on the capacitor position. The maximum tuning range achieved for the first band is 600 MHz and the same for the second band is 422 MHz. The minimum and maximum gain values for the lower band are found to be 4.25 dBi and 4.95 dBi, respectively. Similarly, for the upper band, those values are obtained as 6.77 dBi and 7 dBi, respectively.","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":"131973483","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
RCS Resonances for Canonical Structures 典型结构的RCS共振
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958348
Y. Shestopalov
{"title":"RCS Resonances for Canonical Structures","authors":"Y. Shestopalov","doi":"10.1109/COMCAS44984.2019.8958348","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958348","url":null,"abstract":"A brief survey is presented on the methods aimed at rigorous validation of the occurrence of complex RCS resonances for canonical structures: dielectric and perfectly conducting cylinders covered by layered media possessing circular symmetry. It is shown that the resonances are associated with singularities of the scattered field in the complex domain.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"59 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":"114642067","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
UWB-Based Positioning System for Supporting Lightweight Handheld Ground-Penetrating Radar 支持轻型手持式探地雷达的uwb定位系统
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958144
P. Kaniewski, T. Kraszewski, Przemysław Pasek
{"title":"UWB-Based Positioning System for Supporting Lightweight Handheld Ground-Penetrating Radar","authors":"P. Kaniewski, T. Kraszewski, Przemysław Pasek","doi":"10.1109/COMCAS44984.2019.8958144","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958144","url":null,"abstract":"The paper presents a concept of a high-accuracy positioning system, using ultrawideband (UWB) radio modules. The system is dedicated for supporting operation of a handheld ground-penetrating radar (GPR), as the use of information about the antenna coordinates at the moments of scanning enables correction of the radar signals and facilitates creation of high-resolution subsurface images. The presented system is self-contained and easy-deployable; it has centimeter-level accuracy and provides positioning data with high repeatability. The system’s structure, mathematical model, positioning algorithm and chosen simulation results are presented in the paper.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"30 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":"133845625","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
Echo generation by SVO 由SVO产生回声
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958233
A. Capozzoli, C. Curcio, A. Liseno
{"title":"Echo generation by SVO","authors":"A. Capozzoli, C. Curcio, A. Liseno","doi":"10.1109/COMCAS44984.2019.8958233","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958233","url":null,"abstract":"We deal with an approach, based on the Singular Value Optimization (SVO) technique, for the synthesis of array-based generators of near-field echoes. The approach selects the grid wherein enforcing the design specifications and the radiator locations to control the ill-conditioning associated to the determination of the array excitation coefficients. Following the SVO optimization, the array coefficients are determined by a Singular Value Decomposition (SVD).Numerical results are provided for the synthesis of the near-field scattered by a perfectly conducting sphere illuminated by an elementary dipole.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"38 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":"134094558","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
Pre-PA Delay-Line Based FIR Filter for Self-Interference Cancellation in Full Duplex Wireless Systems 全双工无线系统中基于预pa延迟线的FIR滤波器自干扰消除
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958454
Nimrod Ginzberg, D. Regev, E. Cohen
{"title":"Pre-PA Delay-Line Based FIR Filter for Self-Interference Cancellation in Full Duplex Wireless Systems","authors":"Nimrod Ginzberg, D. Regev, E. Cohen","doi":"10.1109/COMCAS44984.2019.8958454","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958454","url":null,"abstract":"In this paper we propose a pre-PA self-interference (SIC) cancellation FIR filter architecture implemented in a quadrature balanced PAs (QBPA) transmitter (TX) for full duplex wireless applications. Pre-PA SIC filter allows for flexible and efficient equalization of the cancellation signal by reusing the TX path, thus eliminating the need to couple TX power and facilitating linearization operations on both the TX and SIC signals. The pre-PA SIC approach is validated in system-level simulation and demonstrated in measurement using 180nm CMOS QBPA transmitter and a single-tap FIR filter SIC stage. The single-tap filter achieves 37 dB and 42 dB of total TX-RX isolation over BWs of 20 MHz and 10 MHz, respectively, at 14 dBm TX power level.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"7 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":"124825709","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
High System Gain E-Band Link in a Wideband Aircraft-to-Ground Data Transmission 宽带机对地数据传输中的高系统增益e波段链路
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958387
I. Kallfass, A. Tessmann, R. Henneberger, R. Sommer, P. Harati, S. Dilek, B. Schoch, J. Eisenbeis, Sören Marahrens, S. Palm
{"title":"High System Gain E-Band Link in a Wideband Aircraft-to-Ground Data Transmission","authors":"I. Kallfass, A. Tessmann, R. Henneberger, R. Sommer, P. Harati, S. Dilek, B. Schoch, J. Eisenbeis, Sören Marahrens, S. Palm","doi":"10.1109/COMCAS44984.2019.8958387","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958387","url":null,"abstract":"A wireless communication link operating in E-band at 71-76 GHz with 30 dBm of transmit power from a GaN-based solid-state power amplifier and a 3-dB noise Figure of its GaAs-based receiver is employed in a data transmission with up to 9.8 Gbit/s data rate between a plane and a ground station. Flying at a height of 1000 m above ground and at distances between 5 and 12 km from the receiver, a microlight aircraft hosts the payload mounted to its wing. The highly directional link is formed by a 39.7 dBi gain Cassegrain parabolic antenna in the plane-mounted transmitter, and a 48.7 dBi Cassegrain antenna with GPS-based antenna tracking in the ground terminal. Stable data links were established with up to 9.8 Gbit/s data rate employing QPSK, 8-PSK and 16-QAM modulation.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"14 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":"125490435","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
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