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2015 European Microwave Conference (EuMC)最新文献

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A push-push oscillator array with very simple coupling circuits using HEMT 一个推推振荡器阵列与非常简单的耦合电路使用HEMT
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345745
Takayuki Tanaka, T. Sameshima, I. Toyoda
{"title":"A push-push oscillator array with very simple coupling circuits using HEMT","authors":"Takayuki Tanaka, T. Sameshima, I. Toyoda","doi":"10.1109/EUMC.2015.7345745","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345745","url":null,"abstract":"A push-push oscillator array with simple coupling circuit is studied. The push-push oscillators are connected via a coupling circuit using a HEMT. The oscillators are synchronized and the output phase difference is controlled by the coupling circuit. The phase difference is changed by the bias voltage of the HEMT. The basic performance of the oscillator array using two push-push oscillators is investigated. It is confirmed that the output phase difference is widely changed by the phase difference of the reflection signals and the phase of the transmission signal of the coupling circuit.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"68 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":"115719972","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
Simplified power adaptive digital predistorter for RF power amplifiers in dynamic power transmission 用于射频功率放大器动态功率传输的简化功率自适应数字预失真器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMIC.2015.7345124
Yan Guo, Chao Yu, A. Zhu
{"title":"Simplified power adaptive digital predistorter for RF power amplifiers in dynamic power transmission","authors":"Yan Guo, Chao Yu, A. Zhu","doi":"10.1109/EUMIC.2015.7345124","DOIUrl":"https://doi.org/10.1109/EUMIC.2015.7345124","url":null,"abstract":"A simplified power adaptive digital predistorter (DPD) is proposed in this paper to compensate the nonlinear distortion of the power amplifier (PA) within a wide range of input power variation. Compared to the original power adaptive method which requires doubling the number of the coefficients in model extraction, the proposed model can significantly reduce the coefficients number, which further decreases the system cost and complexity. A high power Doherty PA was employed to validate the proposed DPD. Measurement results show that the nonlinear distortion of the PA at multiple power levels can be effectively removed.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"8 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":"125283921","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
300-GHz FM-CW radar system by optical frequency comb generation 300 ghz调频-连续波雷达系统由光频梳产生
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345824
A. Kanno, N. Sekine, Y. Uzawa, I. Hosako, T. Kawanishi
{"title":"300-GHz FM-CW radar system by optical frequency comb generation","authors":"A. Kanno, N. Sekine, Y. Uzawa, I. Hosako, T. Kawanishi","doi":"10.1109/EUMC.2015.7345824","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345824","url":null,"abstract":"In this paper, we demonstrate a 300-GHz FM-CW radar using optical modulation technology. An optical frequency comb based on the optical modulation is utilized as a broadband frequency multiplier with a factor of 12. At a central frequency of 300 GHz, we generate a 12-GHz-bandwidth FM-CW signal with a pulse duration of 10 μs, realizing a precise ranging with a resolution of several centimeters. We show that the optical frequency comb generator is capable of generating larger bandwidth FM-CW signals.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"45 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":"117204550","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
Reconfigurable UWB filtennas with sharp WLAN dual bandnotch 具有锐利WLAN双带陷波的可重构UWB滤波器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345991
W. Ahmad, D. Budimir
{"title":"Reconfigurable UWB filtennas with sharp WLAN dual bandnotch","authors":"W. Ahmad, D. Budimir","doi":"10.1109/EUMC.2015.7345991","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345991","url":null,"abstract":"This paper presents the design and results of a reconfigurable ultra-wideband (UWB) 3.1-10.6 GHz filtenna with sharp dual bandnotch for WLAN 5.25 GHz and 5.8 GHz bands. A design for a bandstop filter is first proposed. Reconfigurability of the filter is achieved by the implementation of Graphene based switches and PIN diodes within the proposed filter. The filter was simulated, fabricated and measured for switch OFF and ON states. The simulated and measurement results are in good agreement with each other. The results for a switch OFF case show no bandnotch in the passband of the filter. While for a switch ON case, dual bandnotch have been obtained at a measured insertion loss rejection of 30 dB. The filter is then integrated with an UWB antenna. The resulting filtenna is simulated, fabricated and measured. Obtained simulation and measurements results of both switches in OFF and ON states have been presented to validate the accuracy of the proposed structures. On comparison, the obtained results of PIN diodes match those of the Graphene based switches. The results of the filtenna with both switches in OFF state show an entire bandpass response from 3.1-10.9 GHz with no bandnotch present. In ON state, the results show that sharp rejections at 5.3 GHz and 5.8 GHz are achieved at a measured return loss of 2.5 dB.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"136 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":"122754967","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
Millimeter wave spatial multiplexing: Feasibility and performance of a short range 2×2 link 毫米波空间复用:短距离的可行性和性能2×2链接
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345734
Eddy Dailleux, J. Frigon, C. Hannachi, S. Tatu
{"title":"Millimeter wave spatial multiplexing: Feasibility and performance of a short range 2×2 link","authors":"Eddy Dailleux, J. Frigon, C. Hannachi, S. Tatu","doi":"10.1109/EUMC.2015.7345734","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345734","url":null,"abstract":"In this paper, a 60 GHz short-range spatial multiplexing architecture for a 2 × 2 MIMO (Multiple-Input Multiple-Output) system is proposed and analyzed. High-speed communications can be achieved at 60 GHz thanks to the availability of 7 GHz of unlicensed bandwidth and strong free-space attenuation, allowing efficient spectrum reuse. Spatial multiplexing MIMO techniques can also be used to furher improve the data rate. A computer model using measured results of 8 patches microstrip antenna array for both transmitter and receiver antennas is proposed to analyze a MIMO spatial multiplexing architecture which diagonalize the channel matrix in hardware, by tuning certain physical parameters. This method avoids the conventional MIMO signal processing which requires high speed embedded DSP. Measurement results of the spatial multiplexing systems are also presented. This study proves that the capacity of the proposed MIMO system can be considerably increased compared to SISO (Single-Input-Single-Output) under certain conditions.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"82 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":"126513858","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
K-Band BiCMOS based near-field biomedical dielectric sensor for Detection of fat and calcium in blood 基于k波段BiCMOS的近场生物医学介质传感器用于检测血液中的脂肪和钙
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345890
F. I. Jamal, S. Guha, M. Eissa, S. Vehring, D. Kissinger, C. Meliani
{"title":"K-Band BiCMOS based near-field biomedical dielectric sensor for Detection of fat and calcium in blood","authors":"F. I. Jamal, S. Guha, M. Eissa, S. Vehring, D. Kissinger, C. Meliani","doi":"10.1109/EUMC.2015.7345890","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345890","url":null,"abstract":"This paper presents a K-band BiCMOS dielectric biomedical sensor for discrimination of fat and calcium in blood. Open ended microstrip line, referred as open-stub, is used as the sensing element and is embedded in a Colpitts oscillator. The impedance seen by the oscillator core at this node is capacitive and varies with the permittivity of the medium on top of the stub. As the resonant frequency of the oscillator scales in accordance with the capacitance of this stub, the permittivity data is translated into output frequency of the oscillator. The sensor chip was fabricated in standard 0.25 μm SiGe:C BiCMOS technology and has a size of 0.6 mm2, while consuming approx. 15 mW power from a 3.3 V supply. First measurements were performed by detecting concentration of water in glucose solution. Following this, varied concentrations of fat and calcium were measured using water and blood as the host material in binary mixture. This sensor is proposed as a building block for non-invasive investigations and plaque characterization.","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":"126529432","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
Dispersive model for the phase velocity of slow-wave CMOS coplanar waveguides 慢波CMOS共面波导相速度的色散模型
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345696
A. Franc, E. Pistono, P. Ferrari
{"title":"Dispersive model for the phase velocity of slow-wave CMOS coplanar waveguides","authors":"A. Franc, E. Pistono, P. Ferrari","doi":"10.1109/EUMC.2015.7345696","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345696","url":null,"abstract":"This paper presents a model taking the dispersion of slow-wave coplanar waveguides into account. This improved model is a refinement of a previous published physical model. The enhancement consists in modeling the transversal propagation along the strips forming the shielding layer through an inductance. The analysis is based on a physical approach, and an accurate and simple model is derived. Results carried out from the model calculus are in good agreement with the measurement results. Finally, the different cut-off frequencies in slow-wave coplanar waveguides are investigated.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"14 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":"125769651","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
A broadband 3–29 GHz reflectometer with a frequency compensated multilayer sixport structure 一种频率补偿多层六端口结构的宽带3 - 29ghz反射计
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345765
F. Trenz, M. Hofmann, R. Weigel, D. Kissinger
{"title":"A broadband 3–29 GHz reflectometer with a frequency compensated multilayer sixport structure","authors":"F. Trenz, M. Hofmann, R. Weigel, D. Kissinger","doi":"10.1109/EUMC.2015.7345765","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345765","url":null,"abstract":"In this paper, a planar broadband sixport reflectometer structure is presented. A frequency range from 3 to 29 GHz could be achieved by merging broadband components into a single multilayer PCB stackup with an area of 66×55 mm2. The reflectometer architecture used herein allows a frequency independent q-point configuration of the sixport by implementing microstrip linelength compensation. Broadband matching of around -10 dB has been achieved at all ports in a frequency range from 1 to 30GHz. Furthermore, sufficient coupling from DUT port to measurement output could be reached in a range from 2 to 29 GHz. Frequency compensation of the structure and an optimal q-point constellation of 120-120-120 have been verified by measurement. Due to its broadband functionality, compactness and cost efficiency, the proposed system is suitable for a wide range of microwave measurement applications.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"28 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":"125987433","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
Circurlaly polarized isoflux compact X band antenna for nano-satellites applications 应用于纳米卫星的圆极化等通量紧凑X波段天线
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EURAD.2015.7346317
J. Fouany, M. Thevenot, E. Arnaud, F. Torrès, T. Monediere, N. Adnet, R. Manrique, L. Duchesne, J. Baracco, K. Elis
{"title":"Circurlaly polarized isoflux compact X band antenna for nano-satellites applications","authors":"J. Fouany, M. Thevenot, E. Arnaud, F. Torrès, T. Monediere, N. Adnet, R. Manrique, L. Duchesne, J. Baracco, K. Elis","doi":"10.1109/EURAD.2015.7346317","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346317","url":null,"abstract":"This paper presents a circularly polarized isoflux antenna architecture. New design of compact antenna with parasitic elements was done. This antenna is composed of a circularly polarized patch associated with printed parasitic dipoles. The antenna dimension is about 83mm × 83mm × 15mm and only exceeds the upper face of the platform by 7.5mm. A new compact feeding circuit made of two (3dB, 90°) hybrid couplers and one 180° hybrid ring coupler is presented.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"15 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120838205","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
Stable frequency dissemination via optical fiber based on passive phase fluctuation cancellation 基于无源相位波动抵消的光纤稳定频率传播
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7346003
Juan Wei, Fangzheng Zhang, S. Pan, Lan Yu
{"title":"Stable frequency dissemination via optical fiber based on passive phase fluctuation cancellation","authors":"Juan Wei, Fangzheng Zhang, S. Pan, Lan Yu","doi":"10.1109/EUMC.2015.7346003","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7346003","url":null,"abstract":"A compact scheme for stable frequency dissemination over optical fiber is proposed and demonstrated. A standard signal in the center station is delivered to the remote end without any assistant signal source. The frequency of the received signal is the same as the signal source in the center station. A proof-of-concept experiment is performed. A 6-GHz standard signal is transmitted in a 20-km fiber. The phase jitter of the transmission was reduced from more than 41 ps to less than 1.17 ps.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"49 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":"134083383","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
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