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Dispersion characterization of CRLH transmission lines by electro-optic visions of forward/backward waves CRLH传输线的正反向色散特性研究
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5517797
M. Tsuchiya, T. Shiozawa
{"title":"Dispersion characterization of CRLH transmission lines by electro-optic visions of forward/backward waves","authors":"M. Tsuchiya, T. Shiozawa","doi":"10.1109/MWSYM.2010.5517797","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5517797","url":null,"abstract":"A novel experimental approach is proposed to characterize the dispersion properties of radio frequency (RF) waves in metamaterial structures. The approach is based on wave analyses in the space domain and is provided by RF wave visualization through the live electro-optic imaging scheme. It was successfully demonstrated to visualize forward/backward RF waves in composite right/left-handed transmission lines. The RF wave imagery is shown to be useful for determining right/left-handed frequency ranges as well as evaluating their propagation constants. The derived dispersion diagrams were compared with those obtained from unwrapped S21 phase data.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131078656","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
Techniques for nonlinear high-frequency circuit-level simulation 非线性高频电路级仿真技术
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5517988
T. Brazil
{"title":"Techniques for nonlinear high-frequency circuit-level simulation","authors":"T. Brazil","doi":"10.1109/MWSYM.2010.5517988","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5517988","url":null,"abstract":"New modes of high frequency circuit operation may involve severe nonlinearity and extensive use of digital control or mixed-signal waveforms together with microwave carriers which in combination present significant challenges for simulation. Much progress has been made in simulation techniques in recent years and this is reviewed briefly, indicating a few limitations and still outstanding challenges. Some features of an in-house transient simulator are outlined, which has proven robust and accurate even for the most challenging applications.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131169058","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
Modeling and metrology of metallic nanowires with application to microwave interconnects 金属纳米线的建模与计量及其在微波互连中的应用
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5517856
Kichul Kim, T. M. Wallis, P. Rice, C. Chiang, A. Imtiaz, P. Kabos, D. Filipović
{"title":"Modeling and metrology of metallic nanowires with application to microwave interconnects","authors":"Kichul Kim, T. M. Wallis, P. Rice, C. Chiang, A. Imtiaz, P. Kabos, D. Filipović","doi":"10.1109/MWSYM.2010.5517856","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5517856","url":null,"abstract":"Broadband characterization of individual metallic nanowires for microwave interconnect applications is discussed. Circuit and method of moments (MoM) modeling are benchmarked using a set of coplanar waveguide (CPW) test devices with Au microwire (MW) interconnect and air gaps in the middle of the CPW. Comparison with measurements reveals significantly larger errors from circuit models though all dimensions are much smaller than wavelength. Similar CPW devices hosting 100 nm and 250 nm diameter Pt nanowires (NWs) are then investigated to determine the ranges of conductivity and contact resistance for each Pt NW. An algorithm that utilizes the transmission line theory and different nanowire lengths to determine the actual conductivity and contact resistance is proposed and validated.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131207556","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 6 bit linear binary RF DAC in 0.25µm SiGe BiCMOS for communication systems 用于通信系统的6位线性二进制射频DAC，采用0.25µm SiGe BiCMOS
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5517724
M. Khafaji, H. Gustat, C. Scheytt
{"title":"A 6 bit linear binary RF DAC in 0.25µm SiGe BiCMOS for communication systems","authors":"M. Khafaji, H. Gustat, C. Scheytt","doi":"10.1109/MWSYM.2010.5517724","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5517724","url":null,"abstract":"This paper presents a circuit technique to improve the frequency domain behavior of the binary weighted digital to analog convertors (DAC). It is shown that by adding a current buffer stage, the effect of one of the major drawbacks in this architecture, the impedance variation in every stage, is reduced. To verify the method, a fully binary 6bit 20.5Gsps DAC with 1W power dissipation and measured SFDR higher than 28.2dBc up to 6.2GHz input bandwidth was fabricated. The DAC produces 1Vpp differential output, and less than 60ps full scale rise time.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131037529","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
Waveguide transition to feed a fully PCB integrated dielectric rod antenna 波导过渡馈送一个完全PCB集成的介电杆天线
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5517776
F. Poprawa, Abdellatif Zanati, A. Ziroff, F. Ellinger
{"title":"Waveguide transition to feed a fully PCB integrated dielectric rod antenna","authors":"F. Poprawa, Abdellatif Zanati, A. Ziroff, F. Ellinger","doi":"10.1109/MWSYM.2010.5517776","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5517776","url":null,"abstract":"A microstrip line-to-circular waveguide transition is described which operates at a nominal design frequency of 77 GHz. In order to improve the transmission characteristics, an additional periodically structured shield is used. The transition is capable of exciting a dielectric rod antenna, thus enabling the realization of radar modules on a PCB substrate with a dielectric rod antenna interface.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132847793","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
Low phase noise K-Band oscillator on organic Liquid Crystal Polymer (LCP) substrate 基于有机液晶聚合物(LCP)衬底的低相位噪声k波段振荡器
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5516823
W. Khan, S. Bhattacharya, S. Horst, J. Cressler, J. Papapolymerou
{"title":"Low phase noise K-Band oscillator on organic Liquid Crystal Polymer (LCP) substrate","authors":"W. Khan, S. Bhattacharya, S. Horst, J. Cressler, J. Papapolymerou","doi":"10.1109/MWSYM.2010.5516823","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5516823","url":null,"abstract":"In this paper, for the first time, a reflection type K-band oscillator, on low-cost Liquid Crystal Polymer (LCP), organic substrate, is presented. The oscillation frequency is determined by a λ/2 microstrip resonator coupled to a microstrip line. The measured phase noise and power output of the oscillator are found to be −108 dBc/Hz at 1 MHz offset and −6 dBm respectively, for an oscillating frequency of 25.6 GHz.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133439731","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
Quasi-optical cruciform substrate integrated waveguide (SIW) coupler for millimeter-wave systems 用于毫米波系统的准光学十字基板集成波导耦合器
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5515124
T. Djerafi, J. Gauthier, K. Wu
{"title":"Quasi-optical cruciform substrate integrated waveguide (SIW) coupler for millimeter-wave systems","authors":"T. Djerafi, J. Gauthier, K. Wu","doi":"10.1109/MWSYM.2010.5515124","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5515124","url":null,"abstract":"A new substrate integrated waveguide (SIW) coupler in the form of a cruciform structure is proposed and developed in this work. This coupler is composed of four arms waveguide section connected by a central junction. The central portion is partially etched to act as an impedance transformer and mirror. This coupler could be used for millimetre-wave and sub-millimetre wave applications without insuperable tolerance problem. A 3dB coupler design procedure is validated by electromagnetic -simulations (HFSS) and prototype experiments. Measured results on the basis of the realized prototypes agree well with theoretical predictions and simulated results. This coupler is demonstrated to have a 20% relative bandwidth with 20dB of isolation and return loss.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132740349","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
Digital radiometers for earth science 地球科学用数字辐射计
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5518137
C. Ruf, S. Gross
{"title":"Digital radiometers for earth science","authors":"C. Ruf, S. Gross","doi":"10.1109/MWSYM.2010.5518137","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5518137","url":null,"abstract":"Digital microwave radiometers replace as much of the conventional analog circuitry in a radiometer as possible with an analog-to-digital converter followed by a high speed Digital Signal Processing (DSP) stage. Digital technology adds capabilities to a radiometer that would otherwise be much more difficult (and often cost prohibitive) to include. The quality of each of the performance enhancements enabled by digital radiometry (e.g. spectral resolution, RFI detectability threshold, and full Stokes polarization purity) is dependent on certain aspects of the digital technology (e.g. number of bits of digitization, digitization oversampling rate, length of transverse digital filters, number of internal bits utilized by the DSP algorithm, and core memory and logic block sizes in the DSP chip). These factors are examined and current and projected radiometer performance capabilities estimated given the current and projected state of the art in DSP technology.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133255597","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
Experimental dielectric sensing of materials using Epsilon-Near-Zero tunnel in SIW technology SIW技术中epsilon -近零隧道材料介电传感实验研究
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5515893
H. Lobato-Morales, A. Corona‐Chavez, D. Murthy, Juan Martinez-Brito, L. G. Guerrero-Ojeda
{"title":"Experimental dielectric sensing of materials using Epsilon-Near-Zero tunnel in SIW technology","authors":"H. Lobato-Morales, A. Corona‐Chavez, D. Murthy, Juan Martinez-Brito, L. G. Guerrero-Ojeda","doi":"10.1109/MWSYM.2010.5515893","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5515893","url":null,"abstract":"A planar Epsilon-Near-Zero (ENZ) structure implemented on substrate integrated waveguide technology is used for the characterization of material dielectric permittivity. The proposed structure has very high sensitivity which yields more accurate results when compared to other techniques, such as perturbation of conventional cavities. This prototype presents a low profile, low cost, ease of fabrication and ease of integration, which add important characteristics for portable material analysis systems. Measurements are in good agreement with standard values.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127807674","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
Shape-preserving response prediction for microwave circuit modeling 微波电路建模中的保形响应预测
2010 IEEE MTT-S International Microwave Symposium Pub Date : 2010-05-23 DOI: 10.1109/MWSYM.2010.5515741
S. Koziel
{"title":"Shape-preserving response prediction for microwave circuit modeling","authors":"S. Koziel","doi":"10.1109/MWSYM.2010.5515741","DOIUrl":"https://doi.org/10.1109/MWSYM.2010.5515741","url":null,"abstract":"A new and simple surrogate modeling technique for microwave devices is presented. Our method exploits a recently introduced shape-preserving response prediction procedure that allows us to estimate the response (e.g., S-parameters over certain frequency range) of the computationally expensive microwave structure by examining the response of the computationally cheap (e.g., circuit equivalent) model of the structure. It is demonstrated that the proposed approach offers good modeling accuracy which is better than the accuracy provided by the space mapping approach, even when a very tight limit on the number of base designs used to set up a surrogate model is imposed.","PeriodicalId":341557,"journal":{"name":"2010 IEEE MTT-S International Microwave Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131866071","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: 10
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