Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814901
G. Romo, A. Scogna
A high-performance substrate integrated waveguide (SIW) filter formed by top and bottom metal layers which embed a dielectric slab and two sidewalls of metallic vias is presented. Two different configurations (named as in-line and off-line) are proposed and two different design techniques are discussed: direct method and indirect method. In both cases modeled/simulated results are validated by means of measurements and good agreement is observed over the whole frequency range 0-110GHz. The indirect method allows the prediction of the stop bands with very small computational effort; therefore it is a very promising technique for design of SIW structures.
{"title":"Substrate integrated waveguide (SIW) filter: design methodology and performance study","authors":"G. Romo, A. Scogna","doi":"10.1109/IMWS.2009.4814901","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814901","url":null,"abstract":"A high-performance substrate integrated waveguide (SIW) filter formed by top and bottom metal layers which embed a dielectric slab and two sidewalls of metallic vias is presented. Two different configurations (named as in-line and off-line) are proposed and two different design techniques are discussed: direct method and indirect method. In both cases modeled/simulated results are validated by means of measurements and good agreement is observed over the whole frequency range 0-110GHz. The indirect method allows the prediction of the stop bands with very small computational effort; therefore it is a very promising technique for design of SIW structures.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128106580","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814909
J. Rautio
The popular printed circuit board (PCB) material, FR4 is composed of a glass fiber weave embedded in epoxy. Because the epoxy and the glass fiber have different dielectric constants, the dielectric constant experienced by electric field in the substrate depends on the direction of the electric field. Error in knowledge of this anisotropy causes error in the electromagnetic (EM) analysis of any circuits being designed. An "average" dielectric constant can be used, however the correct average depends on the specific field configuration and thus on the specific circuit layout. As such, both accurate knowledge of dielectric anisotropy and the ability to perform EM analysis including anisotropy is important. This paper proposes a new dual mode resonator for measurement of dielectric anisotropy, specifically uniaxial anisotropy where there is one dielectric constant for electric field perpendicular to the substrate surface, and a second dielectric constant for all electric field tangential to the substrate surface. The technique proposes to compare EM analysis results to measurements to determine the anisotropy. In this paper, we describe and simulate the proposed approach and illustrate evaluation of the expected error.
{"title":"A Proposed Uniaxial Anisotropic Dielectric Measurement Technique","authors":"J. Rautio","doi":"10.1109/IMWS.2009.4814909","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814909","url":null,"abstract":"The popular printed circuit board (PCB) material, FR4 is composed of a glass fiber weave embedded in epoxy. Because the epoxy and the glass fiber have different dielectric constants, the dielectric constant experienced by electric field in the substrate depends on the direction of the electric field. Error in knowledge of this anisotropy causes error in the electromagnetic (EM) analysis of any circuits being designed. An \"average\" dielectric constant can be used, however the correct average depends on the specific field configuration and thus on the specific circuit layout. As such, both accurate knowledge of dielectric anisotropy and the ability to perform EM analysis including anisotropy is important. This paper proposes a new dual mode resonator for measurement of dielectric anisotropy, specifically uniaxial anisotropy where there is one dielectric constant for electric field perpendicular to the substrate surface, and a second dielectric constant for all electric field tangential to the substrate surface. The technique proposes to compare EM analysis results to measurements to determine the anisotropy. In this paper, we describe and simulate the proposed approach and illustrate evaluation of the expected error.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116136673","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814907
F. Aznar, M. Gil, G. Sisó, J. Bonache, F. Martín
This paper is focused on the comparison between the two main categories of resonant-type metamaterial transmission lines: those based on split ring resonators (SRRs) and those based on their complementary counterparts, that is, complementary split ring resonators (CSRRs). It will be shown that both SRR- and CSRR-based metamaterial transmission lines exhibit a very similar behavior, and this analogous behavior has been explained on the basis of the equivalent circuit model of the unit cell of these lines and from duality arguments.
{"title":"SRR- and CSRR-based Metamaterial Transmission Lines: Modeling and Comparison","authors":"F. Aznar, M. Gil, G. Sisó, J. Bonache, F. Martín","doi":"10.1109/IMWS.2009.4814907","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814907","url":null,"abstract":"This paper is focused on the comparison between the two main categories of resonant-type metamaterial transmission lines: those based on split ring resonators (SRRs) and those based on their complementary counterparts, that is, complementary split ring resonators (CSRRs). It will be shown that both SRR- and CSRR-based metamaterial transmission lines exhibit a very similar behavior, and this analogous behavior has been explained on the basis of the equivalent circuit model of the unit cell of these lines and from duality arguments.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133746320","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814899
J. Simpson
This manuscript presents details of finite-difference time-domain (FDTD) modeling for applications at Intel Corporation in ultrahigh-speed interconnects and electromagnetic compatibility of complex packages. First, an experimental and computational study of substrate integrated waveguides (SIWs) optimized for use as ultrahigh-speed bandpass waveguiding digital interconnects is reported. The novelty of the present work resides in the successful design, fabrication, and testing of low-loss SIWs that achieve 100% relative bandwidths. These SIWs could in principle using standard circuit board technology provide bandpass operation at center frequencies approaching 200 GHz and data rates of 200 Gb/sec. These data rates meet or exceed those expected eventually for proposed silicon photonic technologies. The second FDTD modeling application involves characterizing and solving electromagnetic compatibility problems arising in ultracompact portable electronic devices, such as cellphones operating with mixes of high-speed digital and microwave signals. For this work, an ultra high-resolution full-vector 3D FDTD model of a complete compact portable electronic device is desired. In pursuit of this goal, a sample integrated circuit package is first modeled using 343 million grid cells. As future work, additional components within a sample portable electronic device will be modeled, including the circuit board and its layering details.
{"title":"FDTD Modeling Applications in Ultrahigh-Speed Interconnects and Electromagnetic Compatibility of Complex Packages","authors":"J. Simpson","doi":"10.1109/IMWS.2009.4814899","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814899","url":null,"abstract":"This manuscript presents details of finite-difference time-domain (FDTD) modeling for applications at Intel Corporation in ultrahigh-speed interconnects and electromagnetic compatibility of complex packages. First, an experimental and computational study of substrate integrated waveguides (SIWs) optimized for use as ultrahigh-speed bandpass waveguiding digital interconnects is reported. The novelty of the present work resides in the successful design, fabrication, and testing of low-loss SIWs that achieve 100% relative bandwidths. These SIWs could in principle using standard circuit board technology provide bandpass operation at center frequencies approaching 200 GHz and data rates of 200 Gb/sec. These data rates meet or exceed those expected eventually for proposed silicon photonic technologies. The second FDTD modeling application involves characterizing and solving electromagnetic compatibility problems arising in ultracompact portable electronic devices, such as cellphones operating with mixes of high-speed digital and microwave signals. For this work, an ultra high-resolution full-vector 3D FDTD model of a complete compact portable electronic device is desired. In pursuit of this goal, a sample integrated circuit package is first modeled using 343 million grid cells. As future work, additional components within a sample portable electronic device will be modeled, including the circuit board and its layering details.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127375155","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814915
S. Marini, Á. Coves, M. Taroncher, V. Boria, B. Gimeno
In this paper, a fast and accurate full-wave analysis tool of passive structures based on Electromagnetic-Bandgap (EBG) waveguides periodically loaded with metal ridges is proposed. For this purpose, a very efficient Integral Equation (IE) technique is followed to model the planar steps involving arbitrary waveguides. The well-known Boundary Integral - Resonant Mode Expansion (BI-RME) method is used to obtain the modal chart of the ridged waveguides. In order to show the advantages of this tool, a periodically loaded E-plane filter with improved stopband performance is analyzed and compared to standard implementation. Dispersion relations are also derived and used as guidelines for designing an EBG fifth-order low-pass filter.
{"title":"Full-Wave Analysis and Applications of EBG Waveguides Periodically Loaded with Metal Ridges","authors":"S. Marini, Á. Coves, M. Taroncher, V. Boria, B. Gimeno","doi":"10.1109/IMWS.2009.4814915","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814915","url":null,"abstract":"In this paper, a fast and accurate full-wave analysis tool of passive structures based on Electromagnetic-Bandgap (EBG) waveguides periodically loaded with metal ridges is proposed. For this purpose, a very efficient Integral Equation (IE) technique is followed to model the planar steps involving arbitrary waveguides. The well-known Boundary Integral - Resonant Mode Expansion (BI-RME) method is used to obtain the modal chart of the ridged waveguides. In order to show the advantages of this tool, a periodically loaded E-plane filter with improved stopband performance is analyzed and compared to standard implementation. Dispersion relations are also derived and used as guidelines for designing an EBG fifth-order low-pass filter.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121020633","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814917
J. Costantine, Y. Tawk, C. Christodoulou, S. Barbin
This paper presents a star shaped reconfigurable microstrip antenna which exhibits frequency tuning and radiation pattern alteration for different configurations. Switches are suggested to reconfigure the antenna. The antenna is fabricated and measured and simulated results are compared. This antenna can be used in several practical applications according to each configuration. The antenna is then graph modeled and its structure is shown to be not redundant.
{"title":"A Star Shaped Reconfigurable Patch Antenna","authors":"J. Costantine, Y. Tawk, C. Christodoulou, S. Barbin","doi":"10.1109/IMWS.2009.4814917","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814917","url":null,"abstract":"This paper presents a star shaped reconfigurable microstrip antenna which exhibits frequency tuning and radiation pattern alteration for different configurations. Switches are suggested to reconfigure the antenna. The antenna is fabricated and measured and simulated results are compared. This antenna can be used in several practical applications according to each configuration. The antenna is then graph modeled and its structure is shown to be not redundant.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129566555","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814916
Harjot S. Dhindsa, A. Sridhar, R. Achar, M. Nakhla, D. Paul
This paper presents a fast algorithm for transient simulation of power grids in VLSI systems using waveform relaxation techniques. Novel partitioning methods and convergence accelerators are developed for fast convergence of waveform relaxation iterations when applied to power grid networks. Unlike the direct solvers, the new method is highly parallelizable and yields significant speedups. Numerical examples are presented to demonstrate the validity and efficiency of the proposed method.
{"title":"Transient Analysis of Power Grid Networks via Waveform Relaxation Techniques","authors":"Harjot S. Dhindsa, A. Sridhar, R. Achar, M. Nakhla, D. Paul","doi":"10.1109/IMWS.2009.4814916","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814916","url":null,"abstract":"This paper presents a fast algorithm for transient simulation of power grids in VLSI systems using waveform relaxation techniques. Novel partitioning methods and convergence accelerators are developed for fast convergence of waveform relaxation iterations when applied to power grid networks. Unlike the direct solvers, the new method is highly parallelizable and yields significant speedups. Numerical examples are presented to demonstrate the validity and efficiency of the proposed method.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116215512","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814910
P. Moreno, A.R. Chavez, J. L. Naredo
In this work a simplified model for the simulation of electromagnetic transients on non-uniform multiconductor transmission lines is presented. The proposed model is based on the method of characteristics of partial differential equations theory. Rigorous modeling of Nonuniform Multiconductor Transmission Lines requires calculating the space derivatives of the modal transformation matrices. Since such derivatives are calculated numerically, the method can become prone to numerical oscillations. The new procedure presented here does not require the space derivatives, therefore is less prone to numerical oscillations and leads to computing time savings. Results obtained with the proposed model are compared with those from the Numerical Laplace Transform method.
{"title":"A Piece-wise Model for Nonuniform Multiconductor Transmission Lines","authors":"P. Moreno, A.R. Chavez, J. L. Naredo","doi":"10.1109/IMWS.2009.4814910","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814910","url":null,"abstract":"In this work a simplified model for the simulation of electromagnetic transients on non-uniform multiconductor transmission lines is presented. The proposed model is based on the method of characteristics of partial differential equations theory. Rigorous modeling of Nonuniform Multiconductor Transmission Lines requires calculating the space derivatives of the modal transformation matrices. Since such derivatives are calculated numerically, the method can become prone to numerical oscillations. The new procedure presented here does not require the space derivatives, therefore is less prone to numerical oscillations and leads to computing time savings. Results obtained with the proposed model are compared with those from the Numerical Laplace Transform method.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114253328","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814908
Carles Musoll-Anguiano, I. Llamas-Garro, Z. Brito-Brito, L. Pradell, A. Corona‐Chavez
In this paper a reconfigurable bandstop filter able to reconfigure central frequency, bandwidth and selectivity for fine tuning applications is presented. The reconfigurable filter topology has four poles and a quasi-elliptic bandstop filter response. The filter is tuned by varactor diodes placed at different locations on the filter topology. The varactors are voltage controlled in pairs due to filter symmetry for central frequency and bandwidth control. An additional varactor is placed on a crossing line to move a pair of transmission zeros, closer or farther to the filter central frequency, which tunes filter selectivity. The filter has a tuneable fractional bandwidth range from 11.51 to 15.46%, a tuneable central frequency range from 1.346 to 1.420 GHz and a selectivity tuning range from 0.37 to 0.40 dB/MHz.
{"title":"Characterizing a Tune All Bandstop Filter","authors":"Carles Musoll-Anguiano, I. Llamas-Garro, Z. Brito-Brito, L. Pradell, A. Corona‐Chavez","doi":"10.1109/IMWS.2009.4814908","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814908","url":null,"abstract":"In this paper a reconfigurable bandstop filter able to reconfigure central frequency, bandwidth and selectivity for fine tuning applications is presented. The reconfigurable filter topology has four poles and a quasi-elliptic bandstop filter response. The filter is tuned by varactor diodes placed at different locations on the filter topology. The varactors are voltage controlled in pairs due to filter symmetry for central frequency and bandwidth control. An additional varactor is placed on a crossing line to move a pair of transmission zeros, closer or farther to the filter central frequency, which tunes filter selectivity. The filter has a tuneable fractional bandwidth range from 11.51 to 15.46%, a tuneable central frequency range from 1.346 to 1.420 GHz and a selectivity tuning range from 0.37 to 0.40 dB/MHz.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123654488","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}
Pub Date : 2009-04-14DOI: 10.1109/IMWS.2009.4814904
Q. Cheng, J. Bandler, S. Koziel
In this paper we present a simplified space mapping implementation in Agilent ADS. All the space mapping steps are integrated into one ADS schematic. We also describe a generic sequential optimization implementation method using the Application Extension Language functions to activate and deactivate certain design blocks or components to achieve the necessary automatic iteration and looping. The methodology is demonstrated through two microwave design examples.
{"title":"A Simple ADS Schematic for Space Mapping","authors":"Q. Cheng, J. Bandler, S. Koziel","doi":"10.1109/IMWS.2009.4814904","DOIUrl":"https://doi.org/10.1109/IMWS.2009.4814904","url":null,"abstract":"In this paper we present a simplified space mapping implementation in Agilent ADS. All the space mapping steps are integrated into one ADS schematic. We also describe a generic sequential optimization implementation method using the Application Extension Language functions to activate and deactivate certain design blocks or components to achieve the necessary automatic iteration and looping. The methodology is demonstrated through two microwave design examples.","PeriodicalId":368866,"journal":{"name":"2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects","volume":"414 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123865022","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：