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2018 22nd International Microwave and Radar Conference (MIKON)最新文献

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Extending axial ratio bandwidth of antenna array by parasitic patches 利用寄生贴片扩展天线阵轴比带宽
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405224
J. Spurek, Z. Raida
{"title":"Extending axial ratio bandwidth of antenna array by parasitic patches","authors":"J. Spurek, Z. Raida","doi":"10.23919/MIKON.2018.8405224","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405224","url":null,"abstract":"In the paper, axial ratio bandwidth of a circularly polarized antenna array is increased by parasitic patches placed above the original structure. A 2×2 circularly polarized patch antenna array was used as a reference. Performed simulations at center frequencies 17 GHz and 60 GHz show correspondence: the axial ratio bandwidth was increased from 6.7% to 16.7% at 17 GHz, and from 7.6% to 19.1% at 60 GHz.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125219324","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
Modelling the radiowave propagation with a split-step wavelet method for radio occultation 用分步小波方法模拟无线电掩星中的无线电波传播
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405285
R. Douvenot, A. Chabory, S. Rougerie
{"title":"Modelling the radiowave propagation with a split-step wavelet method for radio occultation","authors":"R. Douvenot, A. Chabory, S. Rougerie","doi":"10.23919/MIKON.2018.8405285","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405285","url":null,"abstract":"This paper introduces the split-step wavelet (SSW) propagation technique applied to radio occultation (RO). This technique accounts for both a complex atmosphere and the ground reflection. It is applied on a scenario between a GPS satellite and a low-elevation orbit satellite. The atmosphere is modelled using an ITU model. The Earth is considered as a sphere. We show that the atmosphere and ground effects are both visible at the receiving satellite. Therefore, SSW is a good candidate for RO propagation modelling.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"441 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116714923","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
The use of shunt-stubs in corporate-feeding network for S-band planar antenna array s波段平面天线阵列企业馈电网络中并联存根的使用
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405225
A. Slowik, M. Czyżewski, Blazej Slesicki
{"title":"The use of shunt-stubs in corporate-feeding network for S-band planar antenna array","authors":"A. Slowik, M. Czyżewski, Blazej Slesicki","doi":"10.23919/MIKON.2018.8405225","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405225","url":null,"abstract":"The construction, work principle and analysis results for microwave impedance matching in corporate-feeding network, cooperating with planar antenna array for S-band using shunt-stubs have been presented in the paper. All planar antenna arrays cooperate with signal distribution networks. This one ensures provide impedance matching between input port and antenna radiating elements too. The use of stubs for reactance correction in microwave and antenna technique is well-known technique. The use of the stubs in every stage of power splitting ensures high level in impedance matching. The analysis for 2, 4 and 8 — elements antenna array was made. The physical realization of the 4-element array without and with additional stubs were made. Obtained measure results confirm numerical analysis results.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115412007","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 comparative analysis of 5G mmWave antenna arrays on different substrate technolgies 5G毫米波天线阵列在不同衬底技术上的对比分析
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405183
I. Ndip, T. H. Le, O. Schwanitz, K. Lang
{"title":"A comparative analysis of 5G mmWave antenna arrays on different substrate technolgies","authors":"I. Ndip, T. H. Le, O. Schwanitz, K. Lang","doi":"10.23919/MIKON.2018.8405183","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405183","url":null,"abstract":"In this work, we perform a comparative analysis of the impact of substrate technologies on the performance of 28 GHz antennas for 5G applications. For this purpose, we model, simulate, analyze and compare 2×2 patch antenna arrays on five substrate technologies typically used for manufacturing integrated antennas. The impact of these substrates on the impedance bandwidth, efficiency and gain of the antennas is quantified. Finally, the antennas are fabricated and measured. Excellent correlation is obtained between measurement and simulation results.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128423234","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: 11
Millimetre band detectors based on GaN/AlGaN HEMT 基于GaN/AlGaN HEMT的毫米波段探测器
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405292
D. But, P. Sai, I. Yahniuk, G. Cywiński, N. Dyakonova, W. Knap, Zhang Bo-Wen, Yan Wei, Lili Feng, Yang Fu-Hua
{"title":"Millimetre band detectors based on GaN/AlGaN HEMT","authors":"D. But, P. Sai, I. Yahniuk, G. Cywiński, N. Dyakonova, W. Knap, Zhang Bo-Wen, Yan Wei, Lili Feng, Yang Fu-Hua","doi":"10.23919/MIKON.2018.8405292","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405292","url":null,"abstract":"We report on experimental studies of resonant and non-resonant detection on GaN/AlGaN high electron mobility transistors in the millimeter-wave band at room temperate. The implementation of detectors strongly correlated with designed planar antennas, that ensure THz radiation coupling. In the present work, we study bow-tie and the dual-dipole detectors, for which responsivity of non-resonant detection shows maximums at 170 GHz (1380 V/W) and 175 GHz (630 V/W), respectively. We observe wide bandwidth ∼ 40 GHz around 183 GHz and demonstrate a response in the range 780 GHz–805 GHz with the maximum at 796 GHz (1250 V/W) for bow-tie detector.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121440875","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
Detection of direct path component absence in NLOS UWB channel NLOS UWB信道直接路径分量缺失检测
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405190
Marcin Kołakowski, J. Modelski
{"title":"Detection of direct path component absence in NLOS UWB channel","authors":"Marcin Kołakowski, J. Modelski","doi":"10.23919/MIKON.2018.8405190","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405190","url":null,"abstract":"In this paper a novel NLOS (Non-Line-of-Sight) identification technique is proposed. In comparison to other methods described in the literature, it discerns a situation when the delayed direct path component is available from when it's totally blocked and introduced biases are much higher and harder to mitigate. In the method, NLOS identification is performed using Support Vector Machine (SVM) algorithm based on various signal features. The paper includes description of the method and the results of performed experiment.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114316575","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: 13
Towards resonant THz detector: Devices based on Schottky diodes to 2DEG GaN/AlGaN 谐振太赫兹探测器:基于肖特基二极管到2DEG GaN/AlGaN的器件
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405335
G. Cywiński, P. Sai, I. Yahniuk, P. Kruszewski, Bartosz Grzywacz, J. Przybytek, P. Prystawko, A. Khachapuridze, K. Nowakowski-Szkudlarek, Wojciech Knap, P. Wiśniewski, B. Stonio, G. Simin, S. Rumyantsev
{"title":"Towards resonant THz detector: Devices based on Schottky diodes to 2DEG GaN/AlGaN","authors":"G. Cywiński, P. Sai, I. Yahniuk, P. Kruszewski, Bartosz Grzywacz, J. Przybytek, P. Prystawko, A. Khachapuridze, K. Nowakowski-Szkudlarek, Wojciech Knap, P. Wiśniewski, B. Stonio, G. Simin, S. Rumyantsev","doi":"10.23919/MIKON.2018.8405335","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405335","url":null,"abstract":"We report on comparison studies between a novel transistor-like device and two dimensional Fin Field-effect transistor (2DEG FinFET) towards their applications in a THz resonant detector. Both device structures have been fabricated on the same wafer of GaN/AlGaN epistructure during one processing run. The proposed here the transistor-like structure has two side Schottky gates, which can be biased towards complete pinch-off the 2DEG channel in this device. The characteristic dimensions of all device structures are in the range of typical for the laser writer processing i.e. a few micrometers, however in the case of the transistor-like device we report on electronical tuned confinement, which works down to submicron range. At certain conditions, near to pinch-off region, it is possible to obtain one dimensional current flow. This feature is especially attractive for THz resonant detector approach, which will be discussed in details.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133613284","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
Broadband quasi-optical sub-THz detector based on GaAs HEMT 基于GaAs HEMT的宽带准光学亚太赫兹探测器
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405164
P. Kopyt, B. Salski, J. Cuper, P. Zagrajek, J. Bar, D. Obrebski
{"title":"Broadband quasi-optical sub-THz detector based on GaAs HEMT","authors":"P. Kopyt, B. Salski, J. Cuper, P. Zagrajek, J. Bar, D. Obrebski","doi":"10.23919/MIKON.2018.8405164","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405164","url":null,"abstract":"This paper presents design and testing of a broadband quasi-optical sub-THz detector based on a GaAs/AlGaAs HEMT transistor monolithically integrated with an antenna and mounted on a high-resistivity silicon hyper- spherical lens. Comparative measurements of the fabricated device have been performed to reveal that the responsivity of the resulting detector in the frequency range of 100–200 GHz is on the order of 150 V/W while in the range of 200–300 GHz it falls to ca. 30 V/W.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134028633","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
Topological modifications for performance improvement and size reduction of wideband antenna structures 改进宽频带天线结构的拓扑结构及减小其尺寸
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8404995
A. Bekasiewicz, S. Koziel
{"title":"Topological modifications for performance improvement and size reduction of wideband antenna structures","authors":"A. Bekasiewicz, S. Koziel","doi":"10.23919/MIKON.2018.8404995","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8404995","url":null,"abstract":"Compact antennas belong to the key components of modern communication systems. Their miniaturization is often achieved by introducing appropriate topological changes such as simple ground plane slots or tapered feeds. More sophisticated modifications are rarely considered in the literature because they normally lead to significant increase of the number of tunable parameters, which makes the antenna design process more challenging. On the other hand, complex topological changes are questionable as their effects on radiator performance and/or size reduction are difficult to be verified in practice. In particular, parameter sweeping commonly used for dimension adjustment is incapable of their appropriate handling. In this work, the effect of feed line and ground plane modifications on performance and size reduction of a wideband antenna is investigated. Considered geometrical changes include a ground plane slot and a stepped-impedance feed line (both with gradually increasing number of sections). The modified structures have been optimized for minimum in-band reflection and minimum size using a robust gradient-based algorithm. The obtained results demonstrate that complex topological modifications may be useful for achieving both good performance and small size when handled comprehensively.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132858594","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
Design and implementation of a RF energy harvesting module with DC power control 带直流电源控制的射频能量采集模块的设计与实现
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405216
H. Partal, S. Partal, M. A. Belen
{"title":"Design and implementation of a RF energy harvesting module with DC power control","authors":"H. Partal, S. Partal, M. A. Belen","doi":"10.23919/MIKON.2018.8405216","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405216","url":null,"abstract":"In this experimental research paper, a zero-bias RF energy rectifying antenna (rectenna) is designed at an ISM band, DC output is amplified by employing DC boost converters, and DC energy is stored on super-capacitors. The rectenna is analyzed for low power detection and rectification efficiencies, impedance matching network is implemented to reduce the reflected RF power at the rectifiers' input, DC to DC converters are evaluated for their compatibility to the rectifiers, and super-capacitor behaviors are investigated for their charging time and adaptability as wirelessly chargeable batteries. Many practical concerns and experiences are discussed for the RF energy harvesting systems' potential implementations on low power sensors and wireless communications network.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117155685","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: 6
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