N. Dyakonova, D. Coquillat, F. Teppe, W. Knap, J. Suszek, A. Siemion, M. Sypek, D. But, P. Sai, I. Yahniuk, G. Cywiński, J. Marczewski, M. Zaborowski, D. Tomaszewski, P. Zagrajek
{"title":"Terahertz vision using field effect transistors detectors arrays","authors":"N. Dyakonova, D. Coquillat, F. Teppe, W. Knap, J. Suszek, A. Siemion, M. Sypek, D. But, P. Sai, I. Yahniuk, G. Cywiński, J. Marczewski, M. Zaborowski, D. Tomaszewski, P. Zagrajek","doi":"10.23919/MIKON.2018.8405334","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405334","url":null,"abstract":"An overview of main results concerning THz detection related to plasma nonlinearities in nanometer field effect transistors is presented. In particular nonlinearity and dynamic range of these detectors are discussed. As the main result, we will show some of the first real-world applications of the FET THz detectors: demonstrators of the imager developed for fast postal security and industrial nondestructive quality control.","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":"129552226","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}
{"title":"Design of multiband sierpinski fractal carpet antenna array for C-band","authors":"T. N. Cao, W. J. Krzysztofik","doi":"10.23919/MIKON.2018.8405240","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405240","url":null,"abstract":"Paper presents a design of (1×4) fractal antenna array for the C-band satellite-TV ground station. The microstrip line feeding network of the array is realized on the same board with radiating elements, and combined with the shorting-pin to reduce the antenna elements size. The Rogers RT/duroid 5880 microwave laminate of permittivity ε=2.2 and thickness h=1.57mm was used. Antenna operates at two resonant frequencies, f<inf>1</inf>= 4.04 andf<inf>2</inf>=6.17 GHz with return loss S<inf>11</inf>< −19.7 dB in bandwidth BW > 60MHz, for VSWR <2 at 50-Ohm input impedance. Total power gain of antenna array is greater than 12dB. The antenna array was designed and simulated by means of HFSS computer code. The simulated and experimental results agree favorable.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"77 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":"129801923","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}
D. But, C. Conséjo, D. Coquillat, F. Teppe, W. Knap, L. Varani, J. Torres, G. Auton, Jiawei Zhang, E. Hill, A. Song
{"title":"Millimeter and submillimeter range detector based on graphene ballistic rectifiers","authors":"D. But, C. Conséjo, D. Coquillat, F. Teppe, W. Knap, L. Varani, J. Torres, G. Auton, Jiawei Zhang, E. Hill, A. Song","doi":"10.23919/MIKON.2018.8405293","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405293","url":null,"abstract":"We consider a terahertz detector based on a graphene ballistic rectifier integrated with an antenna. The device demonstrates an extrinsic responsivity of hundreds of V/W in the range 70–440 GHz at room temperature with no indications of a cut-off frequency up to 0.44 THz. The device also demonstrates linear response for more than 3 orders of magnitude of power input due to its zero threshold voltage and its high saturation current.","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":"117286666","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}
Johann Lichtblau, Benedikt Sanftl, C. Kraus, R. Weigel, A. Koelpin
{"title":"Influence of train interior on train-onboard communication","authors":"Johann Lichtblau, Benedikt Sanftl, C. Kraus, R. Weigel, A. Koelpin","doi":"10.23919/MIKON.2018.8405299","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405299","url":null,"abstract":"This paper investigates wireless transmission of data sets within a high-speed train and the influence of train interior on the same. For the examinations orthogonal frequency-division multiplexing (OFDM) is used. With respect to fire protection doors, seats and windows, this work gives a classification of train interior parts regarding the attenuation. The results support the generation of future research strategies for various train design types regarding wireless train-onboard communication and the Train Communication Network (TCN).","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"42 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":"121189191","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}
{"title":"A novel calibration method for RSS-based DoA estimation using ESPAR antennas","authors":"M. Płotka, M. Tarkowski, K. Nyka, L. Kulas","doi":"10.23919/MIKON.2018.8405316","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405316","url":null,"abstract":"In this paper, we introduce a new calibration method that can successfully be used in direction of arrival (DoA) estimation using electronically steerable parasitic array radiator (ESPAR) antennas and employing power-pattern cross-correlation (PPCC) algorithm, which relies on received signal strength (RSS) values recorded at the antenna output port. Instead of the commonly used two-step approach, during which ESPAR antenna calibration is performed and then the overall DoA estimation accuracy is measured, a single setup, which allows simultaneous calibration and verification, has been proposed. Measurement results indicate that the new calibration method reduces the total time required for calibration and verification in RSS-based DoA estimation using ESPAR antennas, which makes this approach easily applicable in practical wireless sensor network (WSN) deployments saving the time and associated costs required for system implementations, where the number of WSN nodes can easily reach hundreds.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"398 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":"124601337","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}
Seif Ben-Hassine, A. Chabory, C. Morlaas, R. Douvenot
{"title":"VOR times series for an aircraft trajectory in the presence of wind turbines","authors":"Seif Ben-Hassine, A. Chabory, C. Morlaas, R. Douvenot","doi":"10.23919/MIKON.2018.8404997","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8404997","url":null,"abstract":"In air navigation, multipath due to large ground scatterers such as wind turbines is a major source of bearing error for VOR systems. Existing models to assess this error neglect the rapid multipath change in time. In this article, this is discussed by computing time series for the VOR signal and multipath.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"226 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":"123722623","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}
K. Ikamas, J. Zdanevicius, Lukas Dundulis, S. Pralgauskaitė, A. Lisauskas, D. Čibiraitė, Daniel Voß, V. Krozer, H. Roskos
{"title":"Quasi optical THz detectors in Si CMOS","authors":"K. Ikamas, J. Zdanevicius, Lukas Dundulis, S. Pralgauskaitė, A. Lisauskas, D. Čibiraitė, Daniel Voß, V. Krozer, H. Roskos","doi":"10.23919/MIKON.2018.8405336","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405336","url":null,"abstract":"We report on design and implementation of narrowband and broadband field-effect transistor-based detectors for THz frequency range (TeraFETs) using commercial CMOS fabrication process. Exploiting the plasma wave mixing principle, which becomes important above the transistor's cut-off frequency, we achieve highly sensitive detection at room temperature operation conditions. At 297 GHz, the resonant detector demonstrates optical noise-equivalent power (NEP) including all losses of 31 pW per square root of Hz. For the same conditions, broadband device exhibits NEP below 100 pW per square root of Hz in a frequency range from 500 GHz to 750 GHz. The optical, antenna effective area-limited NEP of resonant device at 620 GHz is below 10 pW per square root of Hz. These performance values are competitive with the best commercially available room temperature THz detectors.","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":"129210195","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}
{"title":"Miniature high directivity couplers","authors":"A. Gołaszewski, A. Abramowicz","doi":"10.23919/MIKON.2018.8405198","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405198","url":null,"abstract":"The presented high directivity narrowband couplers consist of two transmission lines coupled at two points with capacitances realized as metal patches placed at different layers of the PCB board. The main lines are basically uncoupled. The couplers can be realized in different multilayer stack-ups thus can be easily integrated into PCB circuits. The coupling value can be set from 3 dB to 30 dB. The directivity of the couplers is better than 30 dB in the narrow relative bandwidth of 2%. The match is better than 25 dB. The size of the couplers is much lower than the typical quarter wave length.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"44 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":"124128863","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}
{"title":"Multipoint excitation in the FDTD eigenmode port template generation","authors":"M. Sypniewski","doi":"10.23919/MIKON.2018.8405168","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405168","url":null,"abstract":"Proper waveguide template excitation in EM simulations is one of the key factors to perform fast and accurate FDTD modelling. In some special, but practical cases, the well-known template generation method [1] with one point excitation can lead to numerical problems: it can be ill-conditioned and/or slow. In this paper, it is presented how to improve numerical conditions by exciting 2D waveguide template using a set of excitation points.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"63 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":"126362128","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}
A. Ergintav, F. Herzel, A. Mushtaq, W. Debski, H. Ng, D. Kissinger
{"title":"A comparison of two frequency synthesizer architectures in SiGe BiCMOS for FMCW radar","authors":"A. Ergintav, F. Herzel, A. Mushtaq, W. Debski, H. Ng, D. Kissinger","doi":"10.23919/MIKON.2018.8405218","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405218","url":null,"abstract":"We present a fractional-N phase-locked loop (PLL) with an option to operate either in single-loop or in dual-loop configuration. The PLL is composed of two chips: a voltage controlled oscillator (VCO) chip and a synthesizer chip that are integrated on one printed circuit board. In the synthesizer chip, a chirp generation circuit is included for frequency-modulated continuous-wave (FMCW) radar systems. The measurement results reveal that in the steady state the dual-loop operation is superior over single-loop operation due to its lower in-band phase noise. This makes it attractive for FMCW radar using slow frequency ramps. By contrast, in the case of fast frequency ramps the single-loop configuration is preferred due to its higher VCO gain resulting in a faster frequency settling. The circuits are fabricated in a 0.13 μm SiGe BiCMOS technology and are well suited for highly integrated FMCW radar systems at 80 GHz. They offer high flexibility in programming ramp type, ramp duration and modulation bandwidth.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"10 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":"116892703","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}