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MM Wave Conductivity Measurement Technique by Grazing Incidence Reflectivity 基于掠入射反射率的毫米波电导率测量技术
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751643
A. Gubin, N. Cherpak, A. A. Lavrinovich
{"title":"MM Wave Conductivity Measurement Technique by Grazing Incidence Reflectivity","authors":"A. Gubin, N. Cherpak, A. A. Lavrinovich","doi":"10.1109/EUMC.2008.4751643","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751643","url":null,"abstract":"Non-resonant non-destructive grazing incidence reflectivity (GIR) technique of HTS and relative materials microwave characterization has been developed. As is shown by the authors earlier, electromagnetic grazing incident wave reflection coefficient can be used to determine absolute value of complex conductivity in wide temperature and frequency range. For the first time the experimental measurement setup was realized in millimeter wavelength range using GIR technique and waveguide phase bridge-based approach. The conductivity of high-temperature superconductor YBa2Cu3O7-delta film at temperatures higher than critical TC was measured.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134335633","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
Controllable Waveguide Based on Capacitively Loaded Wire Medium 基于电容负载导线介质的可控波导
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751444
I. Nefedov, P. Alitalo, I. Vendik, M. Sitnikova, D. Kholodnyak, S. Tretyakov
{"title":"Controllable Waveguide Based on Capacitively Loaded Wire Medium","authors":"I. Nefedov, P. Alitalo, I. Vendik, M. Sitnikova, D. Kholodnyak, S. Tretyakov","doi":"10.1109/EUMC.2008.4751444","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751444","url":null,"abstract":"In this presentation we discuss dispersion, losses and excitation of metal waveguides, filled with wire media, loaded by tunable capacitances. Standard rectangular and square cross section waveguides are considered. The waveguides can be filled with usual (single) and crossed (double) wire media (WM). In the standard waveguides, filled with the single WM, capacitances, inserted near wide walls, create pass bands located much lower than the cutoff frequency. For example, in the waveguide, having the cutoff frequency 26 GHz, we have found propagating modes in the frequency range 5-10 GHz. Dispersion of modes in these pass bands is very sensitive to a change of capacitances. Such loaded waveguides can form a new class of controllable microwave devices. Tunability of modes, propagating below the cutoff of the empty waveguide, is studied numerically and experimentally.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"597 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122936739","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
X-band PIN Diode Limiter with Low Spike Leakage Performances using Re-entrant Coaxial Cavity 采用重入式同轴腔的低尖峰泄漏性能的x波段PIN二极管限流器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751811
M. Koreyasu, T. Takashima, T. Kashiwa
{"title":"X-band PIN Diode Limiter with Low Spike Leakage Performances using Re-entrant Coaxial Cavity","authors":"M. Koreyasu, T. Takashima, T. Kashiwa","doi":"10.1109/EUMC.2008.4751811","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751811","url":null,"abstract":"This paper describes a design methodology and the experimental results of an X-band two-stage PIN diode limiter, whose leakage output powers have been successfully suppressed by optimizing the size of multi section re-entrant cavities. The optimized re-entrant cavity provides an appropriate impedance for the PIN diodes in order to achieve moderate limiting performances. The fabricated limiter exhibits a low spike leakage of 21.6 dBm and flat leakage of 20.7 dBm with a high isolation of more than 48 dB at 12.5 kW input power.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124291025","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
Tunable Lumped Element Filters With BST Thin-Film Varactors 带BST薄膜变容体的可调谐集总元滤波器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751800
E. Lourandakis, M. Schmidt, S. Seitz, R. Weigel
{"title":"Tunable Lumped Element Filters With BST Thin-Film Varactors","authors":"E. Lourandakis, M. Schmidt, S. Seitz, R. Weigel","doi":"10.1109/EUMC.2008.4751800","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751800","url":null,"abstract":"Tunable lumped element filter topologies are discussed based on ferroelectric thin-film varactors. The design methodology for the proposed filter topologies relies on already known techniques and is enhanced with the tuning functionality by introducing the Barium-Strontium-Titanate (BST) varactors. Prototype circuits of a lowpass and a bandstop filter were fabricated and the measurement results showed good agreement to the corresponding calculated data. The lowpass prototype achieves a continuous tuning range from 1.5 GHz to 1.9 GHz. The highest measured passband insertion loss is about 4 dB and the input matching is better than -15dB for all bias states. The implemented bandstop filter allows a continuous tuning of the notch frequency from 1.5 GHz to 2.1 GHz with a minimum attenuation of 17 dB.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125060635","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
High Q Micro-machined Cavity Resonator Filter in Low-Cost Silicon Technology 低成本硅技术中的高Q微腔谐振器滤波器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751673
W. Gautier, B. Schoenlinner, V. Ziegler, U. Prechtel, W. Menzel
{"title":"High Q Micro-machined Cavity Resonator Filter in Low-Cost Silicon Technology","authors":"W. Gautier, B. Schoenlinner, V. Ziegler, U. Prechtel, W. Menzel","doi":"10.1109/EUMC.2008.4751673","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751673","url":null,"abstract":"This paper demonstrates a two-pole filter based on high Q micro-machined cavity resonators for operation at 20 GHz. The filter implements a novel inter-resonator coupling cavity placed above the inter-cavity wall separating the resonators and etched out of silicon using the same KOH-etching process as the one used to realised the cavity resonators. The Q-factor of a single cavity resonator is measured as well as the response of the two-pole filter. The filter presented here constitutes the first development step toward a more sophisticated fixed as well as tunable four-pole filter aiming at the replacement of bulky waveguide filters mounted in a majority of satellite transceivers.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134535117","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
GPU Accelerated Krylov Subspace Methods for Computational Electromagnetics 计算电磁学的GPU加速Krylov子空间方法
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751704
S. Velamparambil, S. MacKinnon-Cormier, J. Perry, R. Lemos, M. Okoniewski, J. Leon
{"title":"GPU Accelerated Krylov Subspace Methods for Computational Electromagnetics","authors":"S. Velamparambil, S. MacKinnon-Cormier, J. Perry, R. Lemos, M. Okoniewski, J. Leon","doi":"10.1109/EUMC.2008.4751704","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751704","url":null,"abstract":"Programmable graphics processor units (GPU), such as the NVIDIAR Geforce 8800 series, offer a raw computing power that is often an order of magnitude larger than even the most modern multicore CPUs, making them a relatively inexpensive platform for high performance computing. In this paper, we report the development of two Krylov subspace solvers, the generalized minimal residual (GMRES) and the quasi-minimal residual (QMR) algorithms, on the GPU using the NVIDIA CUDAR programming model. The algorithms have been implemented as a stand-alone library. We report a speed-up of up to 13 times, on a single GPU, in our preliminary experiments with the classic problem of computing the capacitance of conductors using an integral equation method.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131619978","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: 9
On the possibility of Biosensors Based on Split Ring Resonators 基于劈裂环谐振器的生物传感器的可能性
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751681
Hee-Jo Lee, Hyun-Seok Lee, K. Yoo, J. Yook
{"title":"On the possibility of Biosensors Based on Split Ring Resonators","authors":"Hee-Jo Lee, Hyun-Seok Lee, K. Yoo, J. Yook","doi":"10.1109/EUMC.2008.4751681","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751681","url":null,"abstract":"An investigation on the feasibility of a biosensor based on split ring resonator (SRR) is reported in this paper. A two-pair SRR array is used for the biosensor device. The compact SRR composite is excited by a microstrip transmission line which can generate the quasi-TEM mode. The device showed sensitivity to the biosensing parameters of S21 resonant frequency and loaded Q values, due to the coupling of nano-size biomaterials. The feasibility of and the applications for a biosensor based on based on SRRs are also briefly discussed.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132353088","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: 17
EBG Enhanced Dielectric Lens Antennas for the Imaging at Sub-mm Waves 用于亚毫米波成像的EBG增强介质透镜天线
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/eumc.2008.4751609
J. Baselmans, S. Yates, A. Neto, D. Bekers, G. Gerini, A. Baryshev, Y. J. Y. Lankwarden, H. Hoevers
{"title":"EBG Enhanced Dielectric Lens Antennas for the Imaging at Sub-mm Waves","authors":"J. Baselmans, S. Yates, A. Neto, D. Bekers, G. Gerini, A. Baryshev, Y. J. Y. Lankwarden, H. Hoevers","doi":"10.1109/eumc.2008.4751609","DOIUrl":"https://doi.org/10.1109/eumc.2008.4751609","url":null,"abstract":"We have designed a novel sub-mm radiation detector based upon a twin slot antenna placed in the focus of a Si elliptical lens. We use a novel Electromagnetic Band Gap (EBG) super-layer, consisting of 2 frac14 lambda dielectric layers of Si (epsiv=11.7) and SiO2 (epsiv=4) and a Si carrier wafer to enhance the directivity of the feed. The antenna is coupled to a Kinetic Inductance Detector, KID, an extremely sensitive cryogenic radiation detector operating at 300 mK or lower temperatures. We present the design, implementation and measurements of the full detector, including optical sensitivity, frequency response and beam pattern.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132355549","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
Compact and Broadband Transition of Microstrip Line to Finite-Ground Coplanar Waveguide 微带线到有限地共面波导的紧凑宽带过渡
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751493
Liang Han, K. Wu, W. Hong, Xiaoping Chen
{"title":"Compact and Broadband Transition of Microstrip Line to Finite-Ground Coplanar Waveguide","authors":"Liang Han, K. Wu, W. Hong, Xiaoping Chen","doi":"10.1109/EUMC.2008.4751493","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751493","url":null,"abstract":"In this paper, a compact and broadband transition of microstrip line to finite-ground coplanar waveguide (FGCPW) is proposed. Design rules are presented on the basis of simulation and measurement results. Both electric and magnetic fields are gradually transformed from microstrip line to FGCPW by tapering the signal conductor. The microstrip ground plane on the bottom side of the substrate is directly connected to the grounds of the FGCPW on the top side with metallic vias, providing an RF short-circuit for suppressing parasitic modes. Measured return loss is lower than -10 dB for a back-to-back structure from 0.04 GHz to 24 GHz with a low insertion loss of about 1.5 dB at 20 GHz. This kind of transition can find applications in highly integrated circuits and systems using both FGCPW and microstrip line techniques, and also offer easy and accurate measurements of FGCPW circuits with the help of simple coaxial adapters.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129133683","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
Programmable Frequency-Divider for Millimeter-Wave PLL Frequency Synthesizers 用于毫米波锁相环频率合成器的可编程分频器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751488
F. Barale, Procheta Sen, S. Sarkar, S. Pinel, J. Laskar
{"title":"Programmable Frequency-Divider for Millimeter-Wave PLL Frequency Synthesizers","authors":"F. Barale, Procheta Sen, S. Sarkar, S. Pinel, J. Laskar","doi":"10.1109/EUMC.2008.4751488","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751488","url":null,"abstract":"In this paper, a novel 4-modulus programmable frequency divider, suitable for millimeter wave PLL frequency synthesizer applications, is presented. The proposed frequency divider is designed using dynamic logic D flip-flop, and the divider is implemented in a standard 90 nm CMOS technology to achieve high frequencies of operation with very low power consumption. Measurements show a maximum input frequency of 3.5 GHz, and a power consumption of 4.5 mW from a 1.0 V supply. To the best knowledge of the authors, this divider shows one of the best figure of merit in terms of maximum speed of operation, low power consumption, and division ratio ranges for multi-GHz frequency dividers.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131515423","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: 15
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