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2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)最新文献

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Broadband design of substrate integrated waveguide to stripline interconnect 基板集成波导与带状线互连的宽带设计
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995660
F. Taringou, T. Weiland, J. Bornemann
{"title":"Broadband design of substrate integrated waveguide to stripline interconnect","authors":"F. Taringou, T. Weiland, J. Bornemann","doi":"10.1109/NEMO.2014.6995660","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995660","url":null,"abstract":"A broadband design of substrate integrated waveguide (SIW) to stripline interconnects is presented for the first time. The transition shows a wideband performance and, contrary to microstrip and coplanar waveguide circuitry, interconnects two planar transmission-line media that are both capable of medium-level power handling capabilities. Over a bandwidth of 18 GHz to 28 GHz (43.4 percent), the single interconnect shows a worst-case return loss of 24 dB and maximum insertion losses of 0.44 dB. For a back-to-back connection, the return loss reduces to 19 dB and insertion loss increases to 0.87 dB. All dimensional parameters are specified, and the design is validated by two commercially available field-solver packages. Moreover, field plots are presented that highlight the step-by-step mode conversion from SIW to stripline.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124852152","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
Modeling of losses in substrate integrated waveguide components 基板集成波导元件损耗的建模
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995688
M. Bozzi, M. Pasian, L. Perregrini
{"title":"Modeling of losses in substrate integrated waveguide components","authors":"M. Bozzi, M. Pasian, L. Perregrini","doi":"10.1109/NEMO.2014.6995688","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995688","url":null,"abstract":"This paper presents recent advances in the electromagnetic modeling of substrate integrated waveguide (SIW) components. In particular, the modeling of different aspects is discussed, namely the dispersion characteristics, the losses, and the overall device simulation. The different modeling approaches, based on semi-analytical formulas, full-wave simulations and equivalent circuits are presented.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128831176","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
Optimization of multiconductor transmission line parameters using constrained evolution strategies 基于约束演化策略的多导体传输线参数优化
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995673
A. Melkozerov, H. Beyer
{"title":"Optimization of multiconductor transmission line parameters using constrained evolution strategies","authors":"A. Melkozerov, H. Beyer","doi":"10.1109/NEMO.2014.6995673","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995673","url":null,"abstract":"In this paper, the parameters of a multiconductor transmission line (MTL) are optimized using the constraint covariance matrix self-adaptation evolution strategy (cCMSA-ES). The cCMSA-ES performance scaling behavior is experimentally investigated. Practically relevant optimization results are reported for MTL configurations with 3, 4, ..., 9 conductors.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"116 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117222466","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
Modelling the effects of realistic environments in the nearfield and farfield of Low Frequency Antennas with 3D FDTD method 利用三维时域有限差分法对低频天线近场和远场的实际环境影响进行建模
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995711
J. Vincent, P. Borderies, V. Gobin, J. Poirier
{"title":"Modelling the effects of realistic environments in the nearfield and farfield of Low Frequency Antennas with 3D FDTD method","authors":"J. Vincent, P. Borderies, V. Gobin, J. Poirier","doi":"10.1109/NEMO.2014.6995711","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995711","url":null,"abstract":"Ground wave radiation of Low Frequency Antennas is well known for the canonical case of a flat, azimuthally homogeneous, soil. In this paper, more complex kinds of environment are considered in the surroundings of the antenna or in the far field. Both of them are treated by FDTD. Some realistic environments are studied in the near field zone including forest and slopes. An original methodology is proposed for the far field zone. It rests on the use of the direct numerical integration of Sommerfeld's integrals which is presented also.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122744624","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
An equivalent circuit for thick centered irises in rectangular waveguide 矩形波导中厚中心虹膜的等效电路
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995668
L. Zappelli
{"title":"An equivalent circuit for thick centered irises in rectangular waveguide","authors":"L. Zappelli","doi":"10.1109/NEMO.2014.6995668","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995668","url":null,"abstract":"An equivalent circuit for thick centered irises in rectangular waveguide, exciting evanescent accessible modes, is proposed. Starting from the numerical evaluation of the scattering matrix of the iris, we can define some approximating functions for the elements of the circuit representing the iris, which can be used to speed up the optimization of complex structures, like filters or diplexers, based on irises.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124028612","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
The influence by trapezoidal conductor shapes on ring-resonator based material characterization up to 110 GHz 梯形导体形状对高达110 GHz的环形谐振器基材料表征的影响
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995723
A. Talai, R. Weigel, A. Koelpin, Frank Steinhauser, A. Bittner, U. Schmid
{"title":"The influence by trapezoidal conductor shapes on ring-resonator based material characterization up to 110 GHz","authors":"A. Talai, R. Weigel, A. Koelpin, Frank Steinhauser, A. Bittner, U. Schmid","doi":"10.1109/NEMO.2014.6995723","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995723","url":null,"abstract":"Material characterization by ring-resonator based measurements is well established since the early 20th century. Since then, the demand on spectral complex permittivity characterizations of RF materials and dielectric covers at higher microwave frequencies rises. Nowadays, both free space applications, e.g. 77 GHz automotive radar systems, and dielectrics for microchip packages require accurate knowledge of the relative permittivity in order to optimize RF circuit designs. With increasing frequencies, the conductor shape of photochemically etched ring-resonators gets more influence on the effective ring radius, and therefore the measured resonance frequencies, which results in an error for the relative permittivity determination. This paper provides correction factors for the ring radii up to 110 GHz, compensating the altered field distribution due to trapezoidal edges.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123047141","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
Modelling of back reflection in optical ring resonators 光学环形谐振器中反向反射的建模
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995681
Riyadh Mansoor, H. Sasse, S. Ison, A. Duffy
{"title":"Modelling of back reflection in optical ring resonators","authors":"Riyadh Mansoor, H. Sasse, S. Ison, A. Duffy","doi":"10.1109/NEMO.2014.6995681","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995681","url":null,"abstract":"Modelling of back reflection in silicon ring resonators is presented, together with a simulation to extract the values of reflection coefficients. Back reflection in ring resonators is induced by the sidewall roughness of silicon waveguides and is the main cause of response splitting at resonance. Calculation of the ring resonator frequency response without consideration of back reflection yields inaccurate results. Simulation results show that the resonance shape is strongly affected by back reflection and each resonance has a different response from the others in the same ring. Analytically, this manifests as a change in reflection coefficient at each resonant frequency. This paper proposes an analytical model that characterises back reflection and calculates the reflection coefficient.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131550289","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
New results on EMC simulation for space projects of TUSUR University 图苏尔大学航天工程电磁兼容仿真新成果
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995674
T. Gazizov, A. Melkozerov, A. Zabolotsky, P. Orlov, V. Salov, Renat Ashirbakiev, R. Akhunov, S. Kuksenko, I. Kalimulin
{"title":"New results on EMC simulation for space projects of TUSUR University","authors":"T. Gazizov, A. Melkozerov, A. Zabolotsky, P. Orlov, V. Salov, Renat Ashirbakiev, R. Akhunov, S. Kuksenko, I. Kalimulin","doi":"10.1109/NEMO.2014.6995674","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995674","url":null,"abstract":"The paper presents and summarizes theoretical and practical results of the UEM-TUSUR project which is focused on the development of approaches, technologies and software for EMC simulation of unified electronic modules of spaceborne equipment. Theoretical and practical results for quasi-static and electromagnetic analysis, solution of linear algebraic systems and modal filtration are presented briefly. Outlook for applications of the obtained results in the current SAN project is given.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130816473","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
Modal loss analysis of filtering multiports 滤波多端口模态损耗分析
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995700
L. Accatino, G. Bertin, M. Mongiardo
{"title":"Modal loss analysis of filtering multiports","authors":"L. Accatino, G. Bertin, M. Mongiardo","doi":"10.1109/NEMO.2014.6995700","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995700","url":null,"abstract":"The modal analysis of losses has proved to be an accurate tool for their estimation. This work shows that, by exploiting the network properties of the S-matrix, the two-port loss analysis can be extended to cover important multiport filtering cases such as diplexers and triplexers for satellite applications. Computed and measured results related to a satellite antenna triplexer are presented.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130962069","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
Numerical modeling of plasmon-assisted nanotube sensors of the host-medium refractive index 等离子体辅助纳米管介质折射率传感器的数值模拟
2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO) Pub Date : 2014-05-14 DOI: 10.1109/NEMO.2014.6995680
E. Velichko
{"title":"Numerical modeling of plasmon-assisted nanotube sensors of the host-medium refractive index","authors":"E. Velichko","doi":"10.1109/NEMO.2014.6995680","DOIUrl":"https://doi.org/10.1109/NEMO.2014.6995680","url":null,"abstract":"We consider numerical modeling of the sensing characteristics of circular nanotubes made of gold and silver. The tubes are placed into a homogeneous medium, the refractive index of which is to be determined, and illuminated by the H-polarized visible light. The scattering, absorption and extinction cross-sections are calculated and display host-medium dependent hybrid localized surface-plasmon (LSP) resonances of the dipole and quadrupole type. The sensitivities and the figure-of-merit values of these LSP resonances are computed and compared for the infinite and finite thickness of the analyte layer.","PeriodicalId":273349,"journal":{"name":"2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126927134","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
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