2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems最新文献_第9页

Thermal management of on-chip hot spots and 3D chip stacks 片上热点和3D芯片堆的热管理

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5385939

A. Bar-Cohen

引用次数: 23

Multi-cantilever HEMT-based resonant sensor 基于hemm的多悬臂谐振传感器

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386064

I. Khmyrova, Elena Shestakova

{"title":"Multi-cantilever HEMT-based resonant sensor","authors":"I. Khmyrova, Elena Shestakova","doi":"10.1109/COMCAS.2009.5386064","DOIUrl":"https://doi.org/10.1109/COMCAS.2009.5386064","url":null,"abstract":"In this paper resonant sensor based on micro-machined high-electron mobility transistor (HEMT) in which multiple suspended resonant cantilevers serve as floating gates is proposed and its analytical and lumped equivalent circuit models are developed. The proposed HEMT-based multi-cantilever resonant sensor enables electrostatic actuation and electrical readout. Mass absorption by a cantilever results in the change in its mechanical resonant frequency. Mechanical oscillations of such a cantilever excited electrically control the source-drain current. Thus, its resonant frequency shift can be detected as a frequency shift in the resonant peak of the source-drain current. Mechanical oscillations of each cantilever and electromechanical transducer are represented by relevant circuit components. The developed equivalent circuit of multi-cantilever resonant sensor was used to simulate its frequency response using Is-Spice software. The simulation reveals an enhanced source-drain current with a peak at a single frequency for the array of the identical cantilevers. In the case of multiple different cantilevers the simulated source-drain current reveals peaks at frequencies corresponding to mechanical resonances of the cantilevers, as expected.","PeriodicalId":372928,"journal":{"name":"2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130135823","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

Transmission through multiple layers in UWB and narrow band communications 在UWB和窄带通信中通过多层传输

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386062

A. Yahalom, Y. Pinhasi, E. Shifman, S. Petnev

引用次数: 2

Planning of WiMAX OFDMA frame parameters in real world deployments 实际部署中WiMAX OFDMA帧参数规划

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386022

A. Freedman, Ziv Nuss

引用次数: 0

Asymptotic analysis of propagation over cluttered parabolic ridges 杂乱抛物脊上传播的渐近分析

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386032

D. Chizhik, L. Drabeck, W. M. MacDonald

引用次数: 1

True time delay photonic beamforming: A review 真时间延迟光子波束形成研究进展

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5385935

M. Tur

{"title":"True time delay photonic beamforming: A review","authors":"M. Tur","doi":"10.1109/COMCAS.2009.5385935","DOIUrl":"https://doi.org/10.1109/COMCAS.2009.5385935","url":null,"abstract":"Wideband, large phased array antennas, using analog control for angle scanning, require true time delay (TTD), rather than phase shifters, to avoid squint and other impairments in both the temporal and spatial domains. While digital beamforming may eventually become a viable solution for such high-end systems, photonic technology can currently provide the required TTD capabilities. Common to most, if not all photonic solutions is the conversion of the RF signal to light, which after proper photonic processing is detected to produce a delayed RF replica of the input RF signal. This double conversion is quite lossy and often requires optical amplification to achieve the required dynamic range. Many architectures have been proposed for the implementation of TTDs. The talk will discuss some of these proposed architectures, including the use of dispersive components, switched fabrics, chirped Bragg gratings, wavelength division multiplexed approaches, as well as solutions based on nonlinear phenomena such as slow light and stimulated Brillouin scattering. In analyzing these various architectures, the following are among the important characteristics should be examined: (i) Flatness of their RF response; (ii) uniformity among the many TTDs populating the array; (iii) Dynamic range; (iv) Nonlinearities and their implications, as well as complexity, volume, weight and cost. In conclusion, it appears that when properly designed, photonic beamformers have matured to the point, where they can replace classical electronic beamformers, offering extremely wide bandwidth and large scanning angles.","PeriodicalId":372928,"journal":{"name":"2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133905728","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: 12

Planning of truncated sequential binomial tests via the ASN-increase parameter 通过ASN-increase参数规划截断的顺序二项式试验

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386017

Y. Michlin, O. Shaham

引用次数: 0

Low cost ferroelectric phase shifter for a higher microwave power level 用于更高微波功率水平的低成本铁电移相器

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386043

O. Vendik, A. Vasiliev, M. Parnes

引用次数: 1

A novel software defined radio architecture with automatic power control for RFID readers 一种具有自动功率控制的RFID读写器软件无线电结构

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386003

Ping Zhao, T. Hollstein, Kun Fang, M. Glesner, Yuliang Zheng, R. Jakoby

引用次数: 2

The optoelectronic oscillator: Review and recent advances 光电振荡器:回顾与最新进展

2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems Pub Date : 2009-11-01 DOI: 10.1109/COMCAS.2009.5386050

E. Shumakher

引用次数: 7