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2018 48th European Microwave Conference (EuMC)最新文献

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Angle-Susceptible Narrowband Terahertz Metasurface for Thin-Film Sensing 用于薄膜传感的角敏感窄带太赫兹超表面
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541443
N. Nikolaev, S. Kuznetsov, M. Beruete
{"title":"Angle-Susceptible Narrowband Terahertz Metasurface for Thin-Film Sensing","authors":"N. Nikolaev, S. Kuznetsov, M. Beruete","doi":"10.23919/EUMC.2018.8541443","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541443","url":null,"abstract":"The plasmonic metasurface with the angle-sensitive resonance positioned in the vicinity of 0.8-0.9 THz was proposed for THz thin-film sensing and its performance under oblique illumination was numerically investigated and experimentally tested. It is shown that the metasurface can be effectively used to substitute spectral measurements for the single-wavelength ones by tracking the transmission at different angles of incidence. The proposed approach is evaluated as promising for sensing sub micron-thick analyte layers.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"1 1","pages":"420-423"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79731778","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
Towards 100 Gbps: A Fully Electronic 90 Gbps One Meter Wireless Link at 230 GHz 迈向100 Gbps: 230 GHz的全电子90 Gbps一米无线链路
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546556
P. Rodríguez- Vázquez, J. Grzyb, N. Sarmah, B. Heinemann, U. Pfeiffer
{"title":"Towards 100 Gbps: A Fully Electronic 90 Gbps One Meter Wireless Link at 230 GHz","authors":"P. Rodríguez- Vázquez, J. Grzyb, N. Sarmah, B. Heinemann, U. Pfeiffer","doi":"10.23919/EURAD.2018.8546556","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546556","url":null,"abstract":"In this paper we present a fully-electronic, high spectral efficiency one meter wireless link working at a maximum speed of 90 Gbps. It is based on a RF Tx and Rx front-end chipset working at a tunable carrier of 220–260 GHz. The chipset was manufactured in a SiGe 0.13um HBT technology with ft/fmax=350/550 GHz. The Tx delivers a maximum output power of 8.5 dBm and its dc power consumption is 960 m W. The receiver peak conversion gain is 21 dB and its minimum single side band noise figure is 9.5 dB with a power consumption of 1 W. The 6-dB bandwidth measured between the Tx baseband input and the Rx baseband output is 15 GHz. To increase the speed of our previous work of 65 Gbps based on a QPSK modulation scheme, an increase in the spectral efficiency of the link is needed. Applying a back off in the Tx of 4 dB, a link based on a 16-QAM modulation scheme with an spectral efficiency of 2 bits per hertz was achieved. For data-rates of 80 Gbps and below, the EVM achieved was under 11.2%, while for 90 Gbps the measured EVM was 15%.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"54 5 1","pages":"1389-1392"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83406751","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: 31
Bandpass Phase Correction Methodology for Ladder-Type Acoustic Filters 阶梯型声滤波器的带通相位校正方法
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541557
I. Evdokimova, J. Verdú, P. de Paco
{"title":"Bandpass Phase Correction Methodology for Ladder-Type Acoustic Filters","authors":"I. Evdokimova, J. Verdú, P. de Paco","doi":"10.23919/EUMC.2018.8541557","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541557","url":null,"abstract":"Phase matching of ladder-type filters based on micro-acoustic technology is an important part of duplexer and multiplexer design. However, it cannot be straightforwardly applied in direct bandpass synthesis methodologies because of essential differences between lowpass and bandpass approaches. A novel filtering function able to accommodate a new phase control term is proposed in this paper. Taking into account the phase correction from the beginning of the synthesis provides additional advantages in the network design.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"56 1","pages":"683-686"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83554474","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
Practical Load Compensation Networks in Chireix Outphasing Amplifiers Using Offset Transmission Lines 采用偏置传输线的Chireix共相放大器的实用负载补偿网络
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541517
A. Bogusz, J. Lees, R. Quaglia, G. Watkins, S. Cripps
{"title":"Practical Load Compensation Networks in Chireix Outphasing Amplifiers Using Offset Transmission Lines","authors":"A. Bogusz, J. Lees, R. Quaglia, G. Watkins, S. Cripps","doi":"10.23919/EUMC.2018.8541517","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541517","url":null,"abstract":"This paper describes a load compensation network in an outphasing system, realized using series transmission lines instead of conventional shunt reactive components. In particular, it is shown that using transmission lines of different lengths, here referred as Offset Transmission Lines (OTL), can provide load compensation effects at the intrinsic plane of a real device, close to those proposed by Chireix when using shunt reactance in an ideal case. The concept is analysed and demonstrated using a dedicated outphasing circuit, based on GaN HEMT packaged devices. At 2 GHz, the prototype amplifier maintains an efficiency greater than 50% over an output power back-off range in excess of 8 dB. Drain efficiencies of more than 65% and 40% are maintained over 5.5dB and 10dB output power ranges respectively, while achieving a maximum combined output power of 44.5 dBm.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"115 1","pages":"17-20"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80864932","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
High Accuracy Frequency Detection Method Using 1 to mthHarmonics 基于1到m次谐波的高精度频率检测方法
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541804
Jun Shimokawatoko, H. Mizutani, K. Tajima, Mori Kazutomi
{"title":"High Accuracy Frequency Detection Method Using 1 to mthHarmonics","authors":"Jun Shimokawatoko, H. Mizutani, K. Tajima, Mori Kazutomi","doi":"10.23919/EUMC.2018.8541804","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541804","url":null,"abstract":"This paper proposes the high Accuracy frequency detection method by using 1 to mthharmonics. In the proposed method, frequencies of harmonics are detected, and the sum of them is divided by the sum of these orders. The proposed method improves the frequency detection accuracy by $(mathrm{m}+1)/(2sqrt{mathrm{m}})$ as compared with the conventional method using only the mthharmonic. The improvement of the frequency detection accuracy is derived from formulation and is confirmed by simulation and measurement results.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"64 1","pages":"724-727"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81179055","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
Evaluation of Vehicular 4G/5G-MIMO Antennas via Data-Rate Measurement in an Emulated Urban Test Drive 模拟城市试驾中基于数据速率测量的车载4G/5G-MIMO天线评估
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541757
M. Almarashli, S. Lindenmeier
{"title":"Evaluation of Vehicular 4G/5G-MIMO Antennas via Data-Rate Measurement in an Emulated Urban Test Drive","authors":"M. Almarashli, S. Lindenmeier","doi":"10.23919/EUMC.2018.8541757","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541757","url":null,"abstract":"For evaluation of vehicular MIMO antennas in LTE 4G/5G mobile communications a reproducible test method is introduced, which is based on a new investigation of throughput and channel capacity in a virtual test drive. For this 4G/5G MIMO driving test, real hardware and virtual reality are combined. The transmitting and receiving hardware-units are emulated in a measurement hardware-setup, while the air interface is simulated via ray tracing in an urban 3D city model. For evaluation of vehicular 4G/5G-MIMO-antennas, the characteristics of these antennas are measured on the vehicle, and the complete data is fed into the X3D ray tracing algorithm. Reproducibility of the drive is ensured by excluding temporary effects like traffic interferences. The outcome of the 4G/5G-system emulator is applicable in [0.6-6] GHz range and could be extended to higher frequency bands. The comparison between different antennas is accomplished through indicators like signal to interference plus noise ratio, received signal strength indication and data rate.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"26 1","pages":"300-303"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88755368","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: 8
A Compact Circularly-Polarized Lens-Hom Antenna with Very Low Axial Ratio and SLL 一种具有极低轴比和SLL的紧凑型圆偏振透镜天线
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541706
F. R. Varela, José Luis Besada Sanmartín, Belén Galocha Iragiierr
{"title":"A Compact Circularly-Polarized Lens-Hom Antenna with Very Low Axial Ratio and SLL","authors":"F. R. Varela, José Luis Besada Sanmartín, Belén Galocha Iragiierr","doi":"10.23919/EUMC.2018.8541706","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541706","url":null,"abstract":"Antennas used in radio astronomy and remote sensing applications often require the use of high gain horns whose size can be impractical at lower frequencies. To overcome this problem, lens corrected horns are employed. In this paper, the design process of a lens horn antenna with very low axial ratio and side lobe level is reviewed. An analysis of the lens effect over the radiation pattern and matching is performed and some guidelines on the design process are outlined. Measurements of return loss, isolation, radiation pattern and axial ratio are given showing good agreement with the simulations.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"51 1","pages":"1155-1158"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85359272","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
Wideband High Efficiency 50 W GaN-HEMT Balanced Power Amplifier 宽带高效50w GaN-HEMT平衡功率放大器
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541379
Q. H. Le, G. Zimmer
{"title":"Wideband High Efficiency 50 W GaN-HEMT Balanced Power Amplifier","authors":"Q. H. Le, G. Zimmer","doi":"10.23919/EUMC.2018.8541379","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541379","url":null,"abstract":"This paper presents a wideband high efficiency GaN-HEMT balanced power amplifier for modern communication systems. Source- and load-pull analyses through simulations as well as pre-matching technique are applied to design the branch amplifiers. The matching networks comprise the 4:1 binomial impedance transformers to step down the $mathbf{50} Omega$ system impedance. Broadband SMD quadrature hybrid couplers are implemented to form the balanced configuration. The realized amplifier exhibits small-signal gain of $mathbf{13.5}pm mathbf{2 dB}$ over the target frequency range 1.3-3.6 GHz while maintaining well-matched conditions at both input and output. Large-signal measurements show that the amplifier properly deliver $mathbf{47.5}pm mathbf{1.2 dBm}$ continuous wave output power with an average power-added efficiency (PAE) of 55 % across the desired bandwidth.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"21 1","pages":"348-351"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89913443","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 Conservation of Materials for Breast Phantoms in the Frequency Range 0.5-50 GHz 0.5 ~ 50ghz频率范围内乳房假体材料的保护研究
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541677
S. Di Meo, L. Pasotti, M. Pasian, G. Matrone
{"title":"On the Conservation of Materials for Breast Phantoms in the Frequency Range 0.5-50 GHz","authors":"S. Di Meo, L. Pasotti, M. Pasian, G. Matrone","doi":"10.23919/EUMC.2018.8541677","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541677","url":null,"abstract":"Breast cancer is one of the most dangerous female disease worldwide. Currently the trend of incidence rate is growing, however the death rate is decreasing. The merit of these statistics can be also referred to the improvement in available diagnostic tools, which are allowing to make early-diagnosis. Nowadays, several diagnostic methodologies are available, however they are not optimal to be used in a mass screening program, because of their limitations (e.g., patient exposition to ionizing radiations or high costs). For these reasons, recently microwaves and mm-waves have been proposed as a safe and low cost alternative. In particular, mm-waves could offer a suitable compromise between penetration depth, image resolution, and contrast between the dielectric properties of healthy and malignant tissues. A key point for the development of such microwave and mm-wave diagnostic systems is the test phase on realistic breast phantoms. This paper discusses for the first time the conservation of a particular type of easy-to-produce and cheap mixtures used to create breast phantom in the frequency range 0.5-50 GHz. The conservation aspects are fundamental to ensure the repeatability of measurements over time. In particular, this paper shows experimental results performed in a time span of one week, which demonstrate that the best stability for the dielectric properties of the mixtures is achieved when preserving the mixture itself using sunflower seed oil.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"10 1","pages":"320-323"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89636664","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
Through-the-Multilayered Wall Imaging Using Passive Synthetic Aperture Radar 被动合成孔径雷达穿透多层壁成像
2018 48th European Microwave Conference (EuMC) Pub Date : 2018-09-01 DOI: 10.23919/EUMC.2018.8541468
Rajar Abedi, B. Zakeri
{"title":"Through-the-Multilayered Wall Imaging Using Passive Synthetic Aperture Radar","authors":"Rajar Abedi, B. Zakeri","doi":"10.23919/EUMC.2018.8541468","DOIUrl":"https://doi.org/10.23919/EUMC.2018.8541468","url":null,"abstract":"Most of the existing through-the-wall imaging (TWI) methods using synthetic aperture radar (SAR) tend to apply an active system. In this work, a novel, passive synthetic aperture radar (PSAR), termed TWI-PSAR, was proposed, to focus the image of multi targets behind single/multilayered wall. Incident angle and frequency were considered the parameters that influence TWI image directly. Zero incident angle PSAR, Z- PSAR, was exploited in TWI for enhanced target identification and feature extraction as well as wall effect mitigation. In scenarios where background measurement might not be available or wall parameters were unknown for compensation, Z-PSAR could be adopted. Moreover, to show the effectiveness of the proposed PSAR method in a real situation, sources of opportunity that are relatively wideband aligned in several directions were used to image targets behind the wall. Numerical results showed that PSAR could be an efficient scheme in through-the-wall imaging.","PeriodicalId":6472,"journal":{"name":"2018 48th European Microwave Conference (EuMC)","volume":"26 1","pages":"1198-1201"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73476859","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: 5
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