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Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference最新文献

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Effect of tunneling current on the modeling of AlGaAs/GaAs and InP/InGaAs/InP HBTs 隧道电流对AlGaAs/GaAs和InP/InGaAs/InP HBTs建模的影响
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509711
E. Martins, J. W. Swart
{"title":"Effect of tunneling current on the modeling of AlGaAs/GaAs and InP/InGaAs/InP HBTs","authors":"E. Martins, J. W. Swart","doi":"10.1109/SBMOMO.1995.509711","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509711","url":null,"abstract":"HBTs of AlGaAs/GaAs and InP/InGaAs are characterized and modeled. The effect of the tunneling current through the spike at the emitter-base heterojunction is analysed and shown that it is possible to include it in the Ebers-Moll model. A comparison of the measured current of the HBTs with the current calculated by the modified Ebers-Moll model, which includes the thermionic emission, is presented.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115878628","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 integrated optical technology based on sol-gel glasses on silicon: the NODES project 基于硅溶胶-凝胶玻璃的集成光学技术:NODES项目
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509714
E. Yeatman
{"title":"An integrated optical technology based on sol-gel glasses on silicon: the NODES project","authors":"E. Yeatman","doi":"10.1109/SBMOMO.1995.509714","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509714","url":null,"abstract":"The European collaboration project, NODES, aims to establish the basis of a new material and fabrication technology for low-cost mass production of multi-functional integrated optic components, based on spin-on sol-gel glass on silicon. We are developing materials using sol-gel silica as a host matrix, and semiconductor and rare-earth dopants for nonlinear and optical gain functions respectively, for demonstrator switching and amplifying devices. The paper describes the methods used, and the results obtained, in the project as a whole.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121910687","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
Optical low coherence reflectometry for characterization of optical devices 光学器件特性的光学低相干反射计
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509685
J.A.P. da Silva, C. Prola, J. P. von der Weid
{"title":"Optical low coherence reflectometry for characterization of optical devices","authors":"J.A.P. da Silva, C. Prola, J. P. von der Weid","doi":"10.1109/SBMOMO.1995.509685","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509685","url":null,"abstract":"A new OLCR configuration, which places the device out of both arms of the Michelson interferometer was demonstrated. By modulating the device-fiber distance the plurality of solutions can be solved. Resolution of 2.5 /spl mu/m and sensitivity of -100 dB enables the system for characterization of optical waveguides.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121608110","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
A COM model for longitudinally and waveguide coupled SAW resonator filters 纵向和波导耦合SAW谐振器滤波器的COM模型
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509632
P.M. Smith
{"title":"A COM model for longitudinally and waveguide coupled SAW resonator filters","authors":"P.M. Smith","doi":"10.1109/SBMOMO.1995.509632","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509632","url":null,"abstract":"An extended coupling-of-modes model for longitudinally coupled and for waveguide-coupled surface acoustic wave resonator filters is presented. The relationship between the device structure and performance is examined. Experimental measurements on two 100 MHz devices are used to validate the model.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122554084","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
Uncertainty analysis of measurement of complex dielectric permittivity using microstrip transmission line 微带传输线测量复介电常数的不确定度分析
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509611
R. Keam, W. Holmes
{"title":"Uncertainty analysis of measurement of complex dielectric permittivity using microstrip transmission line","authors":"R. Keam, W. Holmes","doi":"10.1109/SBMOMO.1995.509611","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509611","url":null,"abstract":"Microstrip transmission line shows many properties which make it well suited as a medium for complex dielectric permittivity measurement. Such a system could be based on determining the effective permittivity of a microstrip line covered by an unknown dielectric substance. Simple approximate expressions for the effective permittivity are compared with a more rigorous (and hence more computationally involved) solution in order to gain some insight into the accuracy of the approximate solutions with respect to the dielectric material covering the microstrip line. Experimentally determined values of effective permittivity for various standard organic liquids are also presented for comparison.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123978875","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
An improved model to design integrated optical pressure sensors 一种改进的集成光学压力传感器设计模型
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509603
S. K. Manfrin, A. C. César, M.T.C. Silva
{"title":"An improved model to design integrated optical pressure sensors","authors":"S. K. Manfrin, A. C. César, M.T.C. Silva","doi":"10.1109/SBMOMO.1995.509603","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509603","url":null,"abstract":"An improved model for the design of multilayered diaphragm type integrated optical pressure sensors is reported. In this new model the multilayered diaphragm structure is based on an equivalent single-layer which is simulated by using the finite-difference method (FDM). Numerical results of the halfwave pressure as a function of the diaphragm length show good agreement with experimental data.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124037986","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
Improvements in the waveform relaxation method applied to transmission lines with nonlinear terminations 应用于具有非线性终端的传输线的波形松弛法的改进
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509625
F. Lau
{"title":"Improvements in the waveform relaxation method applied to transmission lines with nonlinear terminations","authors":"F. Lau","doi":"10.1109/SBMOMO.1995.509625","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509625","url":null,"abstract":"The waveform relaxation algorithm proposed by Chang (1990) applying to the transient analysis of coupled transmission lines has been found to have a problem in dealing with the DC components of the solution waveforms. This paper applies the modified waveform relaxation algorithms to the simulation of lossy coupled lines with nonlinear terminations. The results are compared with those generated by the conventional time-stepping method.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129031485","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
Trade-off performance properties of pHEMT-based LNAs vs. temperature for VSAT applications 基于phemt的LNAs与温度在VSAT应用中的权衡性能
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509591
A. Caddemi, P. Livreri, M. Sannino
{"title":"Trade-off performance properties of pHEMT-based LNAs vs. temperature for VSAT applications","authors":"A. Caddemi, P. Livreri, M. Sannino","doi":"10.1109/SBMOMO.1995.509591","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509591","url":null,"abstract":"The optimum trade-off performance of an LNA for VSAT applications based on a commercial pHEMT series have been investigated vs. temperature, starting from a noisy model fitted to the measured devices's scattering parameters and noise figure values. As a result, it has been noted that with decreasing temperature from room value, the combined minimum noise figure-power gain (Fmin-Gass), reported on the microwave low-noise device's data sheets, doesn't represent a useful working condition for an optimum LNA design.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115971396","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
Diffractive structures in integrated optics 集成光学中的衍射结构
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509717
M. A. Forastiere, S. Pelli, G. Righini, A. Verciani, C. Gómez-reino, L. R. Staronski, Z. Jaroszewicz
{"title":"Diffractive structures in integrated optics","authors":"M. A. Forastiere, S. Pelli, G. Righini, A. Verciani, C. Gómez-reino, L. R. Staronski, Z. Jaroszewicz","doi":"10.1109/SBMOMO.1995.509717","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509717","url":null,"abstract":"Integrated optical diffractive structures can be profitably used in a variety of applications. Grating couplers, for example, are suitable for waveguide characterization, while more complex components, such as Fresnel lenses, can constitute the focusing elements of most IO signal processing devices. We consider both practical and design aspects of the realization of several waveguide diffractive structures, namely the implementation of a fabrication process of gratings in glass substrates, and the design optimization of various types of Fresnel lenses.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115672063","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
Analysis of normal mode helical antenna on finite ground plane 有限地平面上法向模螺旋天线的分析
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509692
S. Zainud-Deen, K. Awadalla, H. Sharshar
{"title":"Analysis of normal mode helical antenna on finite ground plane","authors":"S. Zainud-Deen, K. Awadalla, H. Sharshar","doi":"10.1109/SBMOMO.1995.509692","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509692","url":null,"abstract":"The input impedance and the radiation pattern or normal mode helical antenna over a finite size ground plane are investigated. The problem is formulated in terms of the surface integral equation based on the piecewise-sinusoidal reaction concept. The current distribution along the helical wire as well as on the ground plane is determined using the method of moments.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114547058","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
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