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2007 IEEE/MTT-S International Microwave Symposium最新文献

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Fully Integrated SiGe-BiCMOS Receiver(RX) and Transmitter(TX) Chips for 76.5 GHz FMCW Automotive Radar Systems Including Demonstrator Board Design 用于76.5 GHz FMCW汽车雷达系统的全集成SiGe-BiCMOS接收机(RX)和发射机(TX)芯片，包括演示板设计
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380434
R. Reuter, H. Li, I. To, Y. Yin, A. Ghazinour, D. Jahn, D. Morgan, J. Feige, P. Welch, S. Braithwaite, B. Knappenberger, D. Scheitlin, J. John, M. Huang, P. Wennekers, M. Tutt, C. Trigas, J. Kirchgessner
{"title":"Fully Integrated SiGe-BiCMOS Receiver(RX) and Transmitter(TX) Chips for 76.5 GHz FMCW Automotive Radar Systems Including Demonstrator Board Design","authors":"R. Reuter, H. Li, I. To, Y. Yin, A. Ghazinour, D. Jahn, D. Morgan, J. Feige, P. Welch, S. Braithwaite, B. Knappenberger, D. Scheitlin, J. John, M. Huang, P. Wennekers, M. Tutt, C. Trigas, J. Kirchgessner","doi":"10.1109/MWSYM.2007.380434","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380434","url":null,"abstract":"Advancements in SiGe device development enable the realization of 76.5 GHz FMCW automotive long range radar systems using relatively low-cost silicon technology. This paper presents fully integrated receiver (RX) and transmitter (TX) circuits for wide temperature range operations. The TX chips consists of a VCO with two stage power amplifier, frequency divider chain, power detector circuit and operational amplifier to on-chip compensate the temperature drift of the center frequency. The RX chips is based on a 38.25 GHz doubler, a 76.5 GHz LNA, a passive balun, a fully balanced mixer and IF buffer. Also the integration and combination with planar patched antennas on a demonstrator board was discussed.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123924360","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: 18
Sensor Nodes for Doppler Radar Measurements of Life Signs 多普勒雷达测量生命体征的传感器节点
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380392
I. Mostafanezhad, Byung-Kwon Park, O. Boric-Lubecke, V. Lubecke, A. Høst-Madsen
{"title":"Sensor Nodes for Doppler Radar Measurements of Life Signs","authors":"I. Mostafanezhad, Byung-Kwon Park, O. Boric-Lubecke, V. Lubecke, A. Høst-Madsen","doi":"10.1109/MWSYM.2007.380392","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380392","url":null,"abstract":"Human life signs can be detected at a distance using mono-static Doppler radars operating in the CW mode. Phase stability of the measurement system plays an important role in successful life signs detection. In this paper it will be shown that small unwanted mechanical motions of the transmit antenna, result in unrecoverable phase errors in the received signal. To overcome this issue, we propose to use a bi-static radar with a sensor node receiver placed in the vicinity of the human subject. Theoretical and experimental results confirm the benefits of using sensor nodes.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"12 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123526140","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
Polarization Combining in the DSN - Recent Results 深空网络中的偏振合并——最新成果
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380173
T. Pham, C. Deboy
{"title":"Polarization Combining in the DSN - Recent Results","authors":"T. Pham, C. Deboy","doi":"10.1109/MWSYM.2007.380173","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380173","url":null,"abstract":"Communications with satellites exploring other planets and objects far from Earth is provided by NASA's Deep Space Network (DSN). Deep space by its nature places a limit on return data rates. This adds to mission cost through extended contact time. Methods that increase mission data rates can substantially reduce the number of required ground contacts and overall cost; or, alternatively, they can increase science data return for a fixed amount of contact time. This paper reports on the first in-flight results of using polarization diversity combining in deep space communications to nearly double the downlink data rate. The DSN and the satellite microwave telecommunications systems are detailed, along with a model of the DSN combining gain. Test results from Mars Odyssey and the New Horizons Mission to Pluto are described, including operational constraints and potential improvements. The significant impact and benefits of this new capability are discussed.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121200942","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
Moments Based Computation of Intermodulation Distortion of Mixer Circuits 基于矩的混频器电路互调失真计算
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380263
D. Tannir, R. Khazaka
{"title":"Moments Based Computation of Intermodulation Distortion of Mixer Circuits","authors":"D. Tannir, R. Khazaka","doi":"10.1109/MWSYM.2007.380263","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380263","url":null,"abstract":"The main figure of merit used to evaluate nonlinear distortion is the third order intercept point (IP3). Traditional methods for obtaining IP3 are either simulation based and suffer from a high CPU cost due to the large number of tones present, or are based on analytical methods which are not suitable for arbitrary topologies and complexities. In this paper, a method based on the computation of the circuit moments is presented for directly obtaining the IP3 of a circuit. The new method is general for all topologies and circuit complexities, and is very accurate and CPU efficient. Furthermore, it is suitable for circuits such as mixers which contain switching behavior and large nonlinearities outside the signal path.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121308928","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: 7
Multi-Watt Wideband MMICs in GaN and GaAs GaN和GaAs中的多瓦宽带mmic
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.379980
D. Meharry, R. Lender, K. Chu, L. Gunter, K. Beech
{"title":"Multi-Watt Wideband MMICs in GaN and GaAs","authors":"D. Meharry, R. Lender, K. Chu, L. Gunter, K. Beech","doi":"10.1109/MWSYM.2007.379980","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.379980","url":null,"abstract":"A comparison is presented of 4 to 18 GHz MMIC power amplifiers implemented in AlGaN-GaN HEMT and GaAs PHEMT with common circuit design technology. Both GaN and GaAs MMICs were designed as non-uniform distributed power amplifiers and achieved approximately 4 Watts over the band. The circuit complexity of the GaAs circuit is much greater than for GaN, as shown by the relative transistor output peripheries of 14.4 mm and 2 mm. The authors believe that both the GaN and GaAs MMICs have higher power than any published result of comparable bandwidth.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114234877","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: 60
Efficient Mixed-order FDTD Using the Laguerre Polynomials on Non-uniform Meshes 基于拉盖尔多项式的非均匀网格高效混阶时域有限差分
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380197
P. Fernandes, Z. Chen
{"title":"Efficient Mixed-order FDTD Using the Laguerre Polynomials on Non-uniform Meshes","authors":"P. Fernandes, Z. Chen","doi":"10.1109/MWSYM.2007.380197","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380197","url":null,"abstract":"In this paper, we propose a mixed-order approximating method to improve the computational efficiency of the FDTD using the weighted Laguerre polynomial technique. In it, both low-and high-order spatial approximations are used together with a non-uniform mesh; in the interior of a solution domain, a coarse grid is employed and a high-order spatial finite-difference approximation is applied; in a region close to a boundary, a fine grid is used and a low-order spatial finite-difference approximation is applied; As a result, a minimum number of numerical grid cells is used while the boundary handling difficulty with high-order schemes are avoided at no expense of the accuracy and the unconditional stability of the Laguerre-polynomial based FDTD method. Numerical experiments illustrate the effectiveness of the proposed method in improving computational efficiency.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116321696","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
Terahertz time domain spectroscopy - present and future modalities 太赫兹时域光谱学——现在和未来的模式
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380034
J. Cunningham, C. Wood, A. Burnett, P. Upadhya, W. Fan, E. Linfield, A. Davies
{"title":"Terahertz time domain spectroscopy - present and future modalities","authors":"J. Cunningham, C. Wood, A. Burnett, P. Upadhya, W. Fan, E. Linfield, A. Davies","doi":"10.1109/MWSYM.2007.380034","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380034","url":null,"abstract":"We overview and compare free-space and on-chip terahertz time-domain spectroscopy systems. Example spectroscopic applications are given for both types of system: vibrational spectroscopy of crystalline compounds for free-space systems, and assay of dielectric films for on-chip systems.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126544357","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
Passive RF Receiver Design for Wireless Sensor Networks 无线传感器网络无源射频接收机设计
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380553
P. Kolinko, L. Larson
{"title":"Passive RF Receiver Design for Wireless Sensor Networks","authors":"P. Kolinko, L. Larson","doi":"10.1109/MWSYM.2007.380553","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380553","url":null,"abstract":"The design and implementation of an RF-passive 915 MHz ISM-band receiver front-end for a \"wake-up\" radio is presented. The detector has a tangential sensitivity of -69 dBm, and zero RF power consumption in standby mode. Fundamental limits on RF performance, range data, and optimum waveform for minimizing false detection are described.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126572726","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: 35
An E-band Electronically Scanned Imaging Radar System e波段电子扫描成像雷达系统
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.380527
K. Miyashiro, J. Schellenberg, J. Loveberg, V. Kolinko, J. McCoy
{"title":"An E-band Electronically Scanned Imaging Radar System","authors":"K. Miyashiro, J. Schellenberg, J. Loveberg, V. Kolinko, J. McCoy","doi":"10.1109/MWSYM.2007.380527","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.380527","url":null,"abstract":"A bi-static E-band (80GHz) electronically scanned imaging radar system has been fabricated and tested. This radar system combines a stare-mode array within a frequency-scanned antenna to extract azimuth and elevation information, while utilizing a frequency modulated CW (FMCW) transceiver to extract range. This unique architecture provides state of the art instantaneous field of view and voxel refresh rates for electronically scanned systems while requiring less RF components than conventional phased array systems, enabling a cost-effective means for volume production of electronically scanned high resolution imaging radar.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128028942","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: 7
High Performance and Compact Balanced-Filter Design for WiMAX Front-End Modules (FEM) Using LCP-Based Organic Substrates 基于lcp有机基板的WiMAX前端模块(FEM)的高性能紧凑平衡滤波器设计
2007 IEEE/MTT-S International Microwave Symposium Pub Date : 2007-06-03 DOI: 10.1109/MWSYM.2007.379996
Renbin Wu, C. Mmasi, V. Govind, S. Dalmia, C. Ghiu, G. White
{"title":"High Performance and Compact Balanced-Filter Design for WiMAX Front-End Modules (FEM) Using LCP-Based Organic Substrates","authors":"Renbin Wu, C. Mmasi, V. Govind, S. Dalmia, C. Ghiu, G. White","doi":"10.1109/MWSYM.2007.379996","DOIUrl":"https://doi.org/10.1109/MWSYM.2007.379996","url":null,"abstract":"In this paper, high performance RF integrated balanced-filters were proposed and designed for single band WiMAX front end application. This FEM includes an on-chip RF power amplifier and one switch, with two receive and one transmit paths. In addition to module size requirement, the WiMAX standard presents several passive design challenges: (1) The power amplifier (PA) provides an increase in rated power, hence a higher transmit gain which forces a more stringent output spurious/harmonic levels specification. (2) Received unwanted signals and blockers levels deplete the linearity performance of the receiver lineup. The module was designed on a multilayer organic (MLO) substrate. The highly integrated, fully shielded RF module incorporates embedded passive components including filters and baluns. Simulated results show excellent electrical performance with low insertion loss, high rejection and good return loss. Additionally, the module exhibits excellent thermal stability over the range of operating parameters.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128116529","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
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