D. Zelenchuk, V. Fusco, James Breslin, M. Keaveney
{"title":"Millimetre wave dielectric chartacterisation of multilayer LTCC substrate","authors":"D. Zelenchuk, V. Fusco, James Breslin, M. Keaveney","doi":"10.1109/EUMC.2015.7345943","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345943","url":null,"abstract":"The paper reports on the mm-wave characterization of a low temperature co-fired ceramic (LTCC) substrate. A substrate integrated resonator (SIW) method is presented for robust extraction of both permittivity and loss tangent of the substrate. The data obtained allow full characterization of the substrate in the 71 GHz - 95 GHz frequency range suitable for accurate modelling of E-and W-band printed circuits.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123984554","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}
R. Mettetal, J. Dupuy, F. Jorge, A. Konczykowska, M. Riet, V. Nodjiadjim, A. Ouslimani
{"title":"Large bandwidth tunable analog equalizer based on a differential cascode amplifier cell for 100-GBaud communication systems","authors":"R. Mettetal, J. Dupuy, F. Jorge, A. Konczykowska, M. Riet, V. Nodjiadjim, A. Ouslimani","doi":"10.1109/EUMIC.2015.7345138","DOIUrl":"https://doi.org/10.1109/EUMIC.2015.7345138","url":null,"abstract":"We report a continuous-time analog equalizer based on a differential cascode amplifier cell. Realized with indium phosphide double heterojunction bipolar transistors reaching a fT/fmax couple of 370/340 GHz, this circuit exhibits a maximal peaking of 10.5 dB at 85 GHz. The tunability is made thanks to a varactor, which can tune the peaking frequency from 30 to 85 GHz. This analog equalizer also provide a bandwidth of more than 110 GHz whatever the varactor settings, which makes it suitable for very high speed applications.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"323 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115562474","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 study of uncertainty estimation for time-domain analysis by considering incompleteness of TRL calibration kit","authors":"Y. Kato, M. Horibe","doi":"10.1109/EUMC.2015.7345931","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345931","url":null,"abstract":"We have developed a new algorithm of the Monte-Carlo calculation for the uncertainty evaluation of time-domain measurements, which directly relates to the incompleteness of a calibration standard used on a vector network analyzer. In contrast to the previous study, the propagation of S-parameter uncertainty is considered, and correlations between measured S-parameters at different frequency points are rigorously taken into account, which is important because the time-domain analysis treats the frequency dependence of the S-parameter. We confirmed that the uncertainty of the peak determination at the time-domain is strongly affected by S-parameter uncertainties especially when we measure time-domain signals including multiple peaks, and quantitatively clarified that it is essential for the uncertainty analysis of time-domain measurements to evaluate the propagation of S-parameter uncertainties appropriately.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115585192","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}
C. M. Andersson, E. Kuwata, Yoshifumi Kawamura, S. Shinjo, K. Yamanaka
{"title":"A 0.85 – 2.7 GHz two-cell distributed GaN power amplifier designed for high efficiency at 1-dB compression","authors":"C. M. Andersson, E. Kuwata, Yoshifumi Kawamura, S. Shinjo, K. Yamanaka","doi":"10.1109/EUMC.2015.7345740","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345740","url":null,"abstract":"High performance broadband distributed power amplifier (PA) design relies on the co-design of input signal distribution and non-isolated output combiner to take maximum advantage of the resulting load-pulling effects at both fundamental and higher harmonics. Due to the load-pulling and the need to consider higher harmonics, PA operation is not readily expressed analytically. In this work this is addressed by using a numerical linear multi-harmonic calculation method for rapid circuit evaluation and optimization. This linear approach targets good broadband performance without relying on nonlinear saturation effects. An initial investigation is performed to find suitable input network and output combiner topologies for a two-cell PA configuration. A demonstrator is then designed based on the findings, where a 3-dB hybrid coupler with an offset transmission line in one branch is used to produce a frequency dependent phase difference between transistor cells. Measuring the PA at 40-V supply and 1-dB compression the output power is in the 43-46 dBm range with corresponding efficiencies of 46-58% across 0.85-2.7 GHz, whereas saturated efficiencies are typically in the 60%-range. The simultaneous combination of high output power and high efficiency reported across 100% fractional bandwidth is state-of-the-art and clearly shows the merit of the proposed PA design approach.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132538739","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":"Near-field scanning microwave microscope for subsurface non-destructive characterization","authors":"Sijia Gu, K. Haddadi, A. El Fellahi, T. Lasri","doi":"10.1109/EUMC.2015.7345723","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345723","url":null,"abstract":"We report a nondestructive testing system based on near-field scanning microwave microscopy. The instrumentation is built up with a vector network analyzer, a fully automated tuning matching network and an evanescent microwave probe. The system can perform microwave images in the frequency band 0.1-20 GHz on scanning ranges of 25×25 cm2. The spatial resolution is experimentally verified by investigating imaging of metal slots. A lumped element model is built to describe the probe-sample interaction.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"9 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132193355","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":"Exploitation of capacitive coupling at UHF for remote sensing in a kW WPT system","authors":"R. Trevisan, A. Costanzo","doi":"10.1109/EUMC.2015.7345807","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345807","url":null,"abstract":"In this work we discuss the design of a near-field link, based on capacitive plates, operating in the 868 MHz band, usually adopted for far-field applications. This system, capacitively coupled, serves as a wireless information transfer unit in a temperature-controlled system. Capacitive and inductive coupling are simultaneously exploited to integrate in a unique, robust, and reliable platform the contactless transmission of temperature data and electric power, respectively. A UHF rectifier is exploited to supply and sense the resistive variations of a Pt100-based temperature probe located in an inaccessible part of an industrial rotary tool. An extensive comparison with solutions in the HF band is presented. Results show reduced link losses and improved system performances in terms of accuracy and component tolerances.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130907805","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":"Simulation of PIM generated on the mesh reflector","authors":"He Bai, W. Cui","doi":"10.1109/EUMC.2015.7345835","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345835","url":null,"abstract":"A novel model is presented for the simulation of passive intermodulation (PIM) generated on the mesh reflector. The model considers the contacts between wires as the main PIM sources. The electro-thermal coupling could be the main nonlinear mechanism responsible for PIM for contacts between the wires coated by gold. The third order intermodulation level responses of 0.25*0.25 square mesh sample with different contact radius are presented, which shows that the PIM level varies for contact radius larger than 2um with two tone 2GHz and 2.1GHz irradiated. The PIM roll-off(3rd order) was found to be 3dB per dB, which shows qualitative agreement with the measured data published by previous authors.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124392905","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}
T. Koizumi, M. Motoyoshi, Daliso Banda, O. Wada, S. Kameda, N. Suematsu, T. Takagi, K. Tsubouchi
{"title":"A Ku-band series/shunt switching type S/H IC for direct RF under sampling reception","authors":"T. Koizumi, M. Motoyoshi, Daliso Banda, O. Wada, S. Kameda, N. Suematsu, T. Takagi, K. Tsubouchi","doi":"10.1109/EUMC.2015.7345909","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345909","url":null,"abstract":"To reduce the size and the power consumption of receivers, direct RF under sampling reception has been developed. This reception method is applicable for satellite communication receivers, because the requirements of near-far resistance and spurious response can be relaxed from that of terrestrial wireless receivers. In this paper, we propose and demonstrate a Ku-band series/shunt switching type sample and hold (S/H) IC for very small aperture terminal (VSAT) RF under sampling receivers. The series/shunt configuration enables low RF signal leakage to the S/H output during hold period even in the high frequency range. To reduce to the loss of input stage of the S/H IC, parallel resonant inductor is attached to the shunt switch FET and on-chip matching circuit is employed for RF input port. The proposed S/H circuit is designed and fabricated in 90 nm CMOS process. The fabricated IC performs the |S11| of lower than -19dB and the signal-to-noise ratio (SNR) of higher than 34.9 dB at VSAT's Ku-band (12.2-12.75GHz).","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116849669","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. Berenguer, M. Baquero-Escudero, D. Sánchez-Escuderos, B. Bernardo-Clemente, V. E. Boria-Esbert
{"title":"Response correction of a V-band narrow-band filter using tuning metal insertions and Aggressive Space Mapping","authors":"A. Berenguer, M. Baquero-Escudero, D. Sánchez-Escuderos, B. Bernardo-Clemente, V. E. Boria-Esbert","doi":"10.1109/EUMC.2015.7345818","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345818","url":null,"abstract":"This paper describes a procedure to correct manufacturing deviations, usually critical at mm-wave frequencies. A 5-pole narrow-band filter centered at 60 GHz is designed using Groove Gap Waveguide (GGW) cavity resonators coupled by inductive windows. In the presented design, square-shaped tuning metal insertions are included in each cavity, coupling windows, and input-output ports. This strategy allows the design to be tuned by an optimization procedure using Aggressive Space Mapping (ASM) with full-wave simulation as coarse model, and the manufactured piece as the fine model. Since the GGW is a contact-less two-piece waveguide, and the piece with the insertions has a simple manufacturing process and reposition, by few low-cost iterations the desired response can be finally recovered. In the presented case, with one iteration it is obtained a centered response, which exhibits only 1.5 dB of insertion loss and good return loss in the pass band.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"12 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115016370","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":"Wide bandwidth for high-speed communication in mid-range, resonant WPT and RFID systems","authors":"J. Besnoff, D. Ricketts","doi":"10.1109/EUMC.2015.7345721","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345721","url":null,"abstract":"In this paper we present an experimental wireless power transfer (WPT) prototype that has achieved a 118 kHz power transfer bandwidth operating at the maximum achievable efficiency. Using a simulation and analytical model we show that the power transfer bandwidth of an optimally tuned WPT system is determined by the loaded Q of the system and not by the Q of the resonant tanks. This observation lead to the realization of a WPT communication system that can transmit data at high data rates greater than 8% of the carrier frequency, a data rate significantly greater than has previously been proposed for resonant WPT and RFID systems.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"59 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123715041","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}