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1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)最新文献

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A three-dimensional quasi-optical source 三维准光源
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.779821
J. Mazotta, K. Ching, W. Shiroma
{"title":"A three-dimensional quasi-optical source","authors":"J. Mazotta, K. Ching, W. Shiroma","doi":"10.1109/MWSYM.1999.779821","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.779821","url":null,"abstract":"A three-dimensional quasi-optical source is presented, consisting of several C-band grid oscillators mounted on a photonic-crystal cube. By allowing the grids to oscillate at a frequency along the band edge of the PC, back-radiation from each grid mutually injection-locks the others. Experimental results indicate that this structure is potentially useful for omnidirectional active antennas.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121787024","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
A cryogenic focal plane array for 85-115 GHz using MMIC preamplifiers 采用MMIC前置放大器的85-115 GHz低温焦平面阵列
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/22.808962
N. Erickson, R. Grosslein, R. Erickson, S. Weinreb
{"title":"A cryogenic focal plane array for 85-115 GHz using MMIC preamplifiers","authors":"N. Erickson, R. Grosslein, R. Erickson, S. Weinreb","doi":"10.1109/22.808962","DOIUrl":"https://doi.org/10.1109/22.808962","url":null,"abstract":"A new focal plane array for 85-115 GHz is described. This array has 16 pixels, and uses InP MMIC preamplifiers with 40 dB gain, followed by a wideband subharmonic mixer to convert to a 5-20 GHz IF band. A low loss isolator is used to achieve an excellent input match. Square corrugated feed horns are used for efficient filling of the focal plane. Critical components are operated at a temperature of 20 K. The noise temperature varies from 50-130 K, including all pixels, across the full band.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124254790","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: 75
Time-domain optical sampling of nonlinear microwave amplifiers 非线性微波放大器的时域光学采样
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.779529
M. Weiss, M. Crites, E. Bryerton, J. Whitaker, Z. Popovic
{"title":"Time-domain optical sampling of nonlinear microwave amplifiers","authors":"M. Weiss, M. Crites, E. Bryerton, J. Whitaker, Z. Popovic","doi":"10.1109/MWSYM.1999.779529","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.779529","url":null,"abstract":"Time domain measurements of the output waveforms of two 8-GHz high-efficiency power amplifiers are presented. A new photoconductive probe has enabled nonintrusive absolute voltage measurements which confirm switched-mode class-E and F operation. In order to analyze nonlinear amplifiers designed to deliver a sinusoidal wave to the load, voltages at characteristic points inside the circuit need to be known. The high-impedance probe used here is an optoelectronic sampler which can sense the charge on an exposed interconnect or the field associated with a buried interconnect. This field data is then converted into voltage.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117142267","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
Automated phase noise measurement of Ku-band MMIC VCO on-wafer ku波段MMIC压控振荡器的相位噪声自动测量
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.780313
J.M. Yang, D.C. Yang, P. Cheng, J. Dickson
{"title":"Automated phase noise measurement of Ku-band MMIC VCO on-wafer","authors":"J.M. Yang, D.C. Yang, P. Cheng, J. Dickson","doi":"10.1109/MWSYM.1999.780313","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.780313","url":null,"abstract":"Voltage-controlled-oscillators (VCOs) are often used as low cost frequency sources in mmW transceivers. We have found that it is feasible to rapidly determine the phase noise of Ku-band VCOs on-wafer, using spectrum analyzers instead of special equipment, provided that external noises are suppressed and design is favorable. Our approach affords accurate and repeatable readings, obviates the need to rework at the module level, and results in significant production cost savings.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117211400","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
Large-domain MOM solution of complex electromagnetic problems 复杂电磁问题的大域MOM解
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.780290
B. Notaroš, B. Popovic, R. Brown, Z. Popovic
{"title":"Large-domain MOM solution of complex electromagnetic problems","authors":"B. Notaroš, B. Popovic, R. Brown, Z. Popovic","doi":"10.1109/MWSYM.1999.780290","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.780290","url":null,"abstract":"A numerical method is presented for the analysis and design of a wide variety of electromagnetic structures consisting of dielectric and conducting parts of arbitrary shapes. The method is based on the integral-equation formulation in frequency domain, and represents a large-domain (high-order expansion) Galerkin-type version of the method of moments (MOM). The method is formulated in two versions concerning the type of the equivalence (volume and surface) utilized in the treatment of the dielectric parts of the structure. It is demonstrated on two unconventional examples that a well designed and carefully optimized moment-method can be a highly efficient and reliable tool for numerical solutions of real-world problems.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117232034","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
Adaptive preconditioners for the simulation of extremely nonlinear circuits using harmonic balance 用谐波平衡法模拟极端非线性电路的自适应预调节器
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.779875
M. Gourary, S. Rusakov, S. Ulyanov, M. Zharov, K. Gullapalli, B. Mulvaney
{"title":"Adaptive preconditioners for the simulation of extremely nonlinear circuits using harmonic balance","authors":"M. Gourary, S. Rusakov, S. Ulyanov, M. Zharov, K. Gullapalli, B. Mulvaney","doi":"10.1109/MWSYM.1999.779875","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.779875","url":null,"abstract":"Krylov subspace techniques in harmonic balance simulations become increasingly ineffective when applied to strongly nonlinear circuits. This limitation is particularly important in the simulation of the nonlinear aspects of a circuit such as the 1 dB gain compression or if the circuit has components being operated in a very nonlinear region. Even if the circuit contains only a few very nonlinear components, Krylov methods using standard preconditioners can become ineffective. To overcome this problem, we present an adaptive preconditioner that dynamically exploits the properties of the harmonic balance Jacobian. With this technique we have been able to retain the advantages of Krylov methods even for strongly nonlinear circuits. Some numerical experiments illustrating the technique are presented.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"63 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120919618","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
A stable and efficient admittance method for the analysis of complex waveguide circuits 一种稳定有效的复杂波导电路导纳分析方法
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.779498
L. Tarricone, G. Zarba, L. Accatino, S. Cambi, M. Mongiardo
{"title":"A stable and efficient admittance method for the analysis of complex waveguide circuits","authors":"L. Tarricone, G. Zarba, L. Accatino, S. Cambi, M. Mongiardo","doi":"10.1109/MWSYM.1999.779498","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.779498","url":null,"abstract":"The generalised admittance method is a rigorous approach for the analysis of waveguide circuits. Unfortunately, it presents the risk of ill-conditioning, especially when very complex structures are analyzed with a considerably high number of modes. In this paper, the concept of adjacence graph is proposed to solve this problem. By applying the latter strategy, the linear system representing the core of the analysis is partitioned into many independent anti well-conditioned subsystems, thus improving the numerical stability of the approach, and its efficiency. Results are given referred to a real industrial case, a complex E/H-plane filter, whose analysis could not be performed via a standard admittance method when a very high number of modes were considered. With the present approach, the ill-conditioning is avoided, and a speed-up of about 12 times is achieved.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127281103","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
Full MMIC millimeter-wave front end for a 76.5 GHz adaptive cruise control car radar 全MMIC毫米波前端用于76.5 GHz自适应巡航控制汽车雷达
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.780234
M. Camiade, D. Domnesque, P. Alleaume, A. Mallet, D. Pons, H. Dambkes
{"title":"Full MMIC millimeter-wave front end for a 76.5 GHz adaptive cruise control car radar","authors":"M. Camiade, D. Domnesque, P. Alleaume, A. Mallet, D. Pons, H. Dambkes","doi":"10.1109/MWSYM.1999.780234","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.780234","url":null,"abstract":"This paper describes the development for volume production of a millimeter-wave front-end for a 76.5 GHz Adaptive Cruise Control (ACC) car radar. The ACC radar is based on a Frequency Shift Keying (FSK) concept. The millimeter-wave module is fabricated using a chip-set composed of only 3 MMICs: a local oscillator chip, a power transmitter chip and a down-converter receiver chip.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125071512","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: 20
Design and performance of a SAW ladder-type filter at 3.15 GHz using SAW mass production technology 基于声表面波量产技术的3.15 GHz声表面波梯形滤波器的设计与性能
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.780220
F. Hollerweger, A. Springer, R. Weigell, W. Ruile, R. Thomas, S. Berek, M. Guglielmi
{"title":"Design and performance of a SAW ladder-type filter at 3.15 GHz using SAW mass production technology","authors":"F. Hollerweger, A. Springer, R. Weigell, W. Ruile, R. Thomas, S. Berek, M. Guglielmi","doi":"10.1109/MWSYM.1999.780220","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.780220","url":null,"abstract":"To meet the increasing demand of high performance filters in GHz radio communication systems, we have improved the design techniques and fabrication processes for SAW devices. The standard optical projection printing technique based on i-line lithography used for mass-production was optimized, thus attaining a linewidth of 0.3 microns. As a first SAW device prototype we designed and fabricated a ladder type bandpass filter from 42/spl deg/ rotYX-LiTaO/sub 3/ substrate, at 3.15 GHz having a bandwidth of close to 200 MHz and a minimum insertion loss of 1.7 dB.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125277097","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
Material parameter characterization of multilayer LTCC and implementation of high Q resonators 多层LTCC的材料参数表征及高Q谐振器的实现
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) Pub Date : 1999-06-13 DOI: 10.1109/MWSYM.1999.780345
H. Liang, A. Sutono, J. Laskar, W. R. Smith
{"title":"Material parameter characterization of multilayer LTCC and implementation of high Q resonators","authors":"H. Liang, A. Sutono, J. Laskar, W. R. Smith","doi":"10.1109/MWSYM.1999.780345","DOIUrl":"https://doi.org/10.1109/MWSYM.1999.780345","url":null,"abstract":"This paper presents experimental data of material loss and dielectric properties for a multilayer LTCC substrate using /spl lambda//4 resonators. Q values comparison has been made between traditional balanced stripline resonators and unbalanced stripline resonators in this substrate. Relation between conductor loss and resonator geometry in this substrate is presented. We demonstrate that LTCC can be a high performance substrate for future personal communication system applications.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125331621","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: 25
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