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2008 Global Symposium on Millimeter Waves最新文献

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A Method for Reliability Increasing Test of Wireless Base Station Product 一种无线基站产品可靠性提高试验方法
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534561
Yu Susheng, Deng Jie
{"title":"A Method for Reliability Increasing Test of Wireless Base Station Product","authors":"Yu Susheng, Deng Jie","doi":"10.1109/GSMM.2008.4534561","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534561","url":null,"abstract":"This paper has described the general process that reliability of wireless base station product is increased by using HALT test technique. For example, the HALT test process of wireless base station type A and its reliability enhancement is described.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133828773","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
The Hybrid FEM Analysis of 2-D Gyrotropic Medium PBG 二维陀螺介质PBG的混合有限元分析
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534673
Xiaoying Zhao, D. Su, Lezhu Zhou
{"title":"The Hybrid FEM Analysis of 2-D Gyrotropic Medium PBG","authors":"Xiaoying Zhao, D. Su, Lezhu Zhou","doi":"10.1109/GSMM.2008.4534673","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534673","url":null,"abstract":"In this paper, the finite element method of the hybrid of edge-element and node-element incorporated with vector Floquet Theorem is employed for calculating and analyzing the frequency response of the transmitting power of Photonic Band-Gap (PBG) consisting of gyrotropic medium. The method can be used for analysis of 2-D PBG consisting of discretionary anisotropic (including gyrotropic) medium and the computational complexity and required memories are reduced by exploiting the periodicity of PBG and Floquet Theorem. The correctness of the method is verified by the comparison of the calculated results with analytic values. Then the analysis of Gyrotropic Medium PBG is presented, which shows performance of the PBG devices can be adjusted by changing the biased magnetic field.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129212827","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
The Design of T-Septum Substrate Integrated Waveguide with an Ultra-Wideband Monomode 超宽带单模t -隔膜基板集成波导的设计
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534645
Linsheng Wu, Xi-Lang Zhou, W. Yin
{"title":"The Design of T-Septum Substrate Integrated Waveguide with an Ultra-Wideband Monomode","authors":"Linsheng Wu, Xi-Lang Zhou, W. Yin","doi":"10.1109/GSMM.2008.4534645","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534645","url":null,"abstract":"It is known that T-septum waveguide is better than the conventional ridged waveguide with respect to its cutoff frequency and bandwidth of the monomode guided. An improved structure called T-septum substrate integrated waveguide (TSSIW) has been proposed for integrating with planar microwave circuits more recently. Therefore, we propose a procedure for designing TSSIW with an ultra-wideband monomode theoretically, and its characteristics is further examined numerically.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130480279","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
Application of Improved Particle Swarm Optimization in Antenna Array Pattern Syntheis 改进粒子群算法在天线阵方向图合成中的应用
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534574
W. Li, S. Liu, X. Shi
{"title":"Application of Improved Particle Swarm Optimization in Antenna Array Pattern Syntheis","authors":"W. Li, S. Liu, X. Shi","doi":"10.1109/GSMM.2008.4534574","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534574","url":null,"abstract":"Particle swarm optimization (PSO) is a robust stochastic evolutionary computation technique based on the movement and intelligence of swarm, which is very easy to understand and implement. In order to overcome the drawbacks of standard PSO, some improved mechanisms based on the design of a novel formula for velocity updating, and global best perturbation are adopted. The simulation results of sidelobe reduction of 2-D array show that it is effective.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121922401","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
Development of Large Bolometer Arrays for Submillimeter and Millimeter Astronomy 用于亚毫米和毫米天文的大型测辐射热计阵列的研制
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534592
F. Pajot, Y. Atik, C. Evesque, S. Lefranc, B. Leriche, B. Belier, L. Dumoulin, M. Piat, D. PRELE, A. Benoit, P. Camus, D. Santos, Yong Jin, M. Giard
{"title":"Development of Large Bolometer Arrays for Submillimeter and Millimeter Astronomy","authors":"F. Pajot, Y. Atik, C. Evesque, S. Lefranc, B. Leriche, B. Belier, L. Dumoulin, M. Piat, D. PRELE, A. Benoit, P. Camus, D. Santos, Yong Jin, M. Giard","doi":"10.1109/GSMM.2008.4534592","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534592","url":null,"abstract":"Access to new microelectronics facilities allows the development of large bolometer arrays for astronomy. The expected sensitivity increase is the key for the next generation of cameras at the focal plane of submillimeter and millimeter telescopes. We present here the research led in France in this domain.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"366 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115400387","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
Integrating Passive Components With Active Circuits Using Standard Silicon Process for Millimeter-Wave Applications 集成无源元件与有源电路使用标准硅工艺毫米波应用
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534638
C. Meng, S. Tseng
{"title":"Integrating Passive Components With Active Circuits Using Standard Silicon Process for Millimeter-Wave Applications","authors":"C. Meng, S. Tseng","doi":"10.1109/GSMM.2008.4534638","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534638","url":null,"abstract":"Several passive components based on the quarter- wavelength transmission line can be integrated with active circuits for millimeter-wave applications. Passive components such as Marchand baluns, quadrature couplers, and rat-race hybrids are directly implemented on the standard low-resisitivity (~10 Omegaldr cm) silicon substrate. New circuit design concepts such as balanced loss and distortionless transmission line are applied to tolerate the unavoidable loss and thus the size reduction is achieved because of the high effective dielectric constant.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115175349","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
Half Mode Substrate Integrated Waveguide Gunn Oscillator 半模衬底集成波导Gunn振荡器
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534544
C. Zhong, Jun Xu, Zhiyuan Yu, Maoyan Wang, Yong Zhu
{"title":"Half Mode Substrate Integrated Waveguide Gunn Oscillator","authors":"C. Zhong, Jun Xu, Zhiyuan Yu, Maoyan Wang, Yong Zhu","doi":"10.1109/GSMM.2008.4534544","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534544","url":null,"abstract":"Based on the half mode substrate integrated waveguide (HMSIW) technology, a new type of Gunn diode oscillator was developed. Main emphasis was placed on HMSIW resonant cavity structure. Restrictions on the performance of the oscillators imposed by packaged networks and the self-characteristic of the Gunn diode transistor devices have been analyzed. This oscillator's performance is characterized by medium level output power of 13.2 dBm, phase noise less than -97.3 dBc/Hz@100 kHz and frequency excursion 40 MHz over temperature range from 10 C to 75 C. It has some advantages such as planar integration, low cost, small size, good temperature-frequency stability, low phase noise.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127138272","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
Two dimensional numerical simulation of temperature dependency of MOSFET out-put characteristics MOSFET输出特性温度依赖性的二维数值模拟
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534640
H. Djelti, M. Feham, A. Ouslimani, A. Kasbari
{"title":"Two dimensional numerical simulation of temperature dependency of MOSFET out-put characteristics","authors":"H. Djelti, M. Feham, A. Ouslimani, A. Kasbari","doi":"10.1109/GSMM.2008.4534640","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534640","url":null,"abstract":"In this paper we present the impact of temperature on out-put MOSFET characteristics over a wide range of temperature from 300 degK to 500 degK, by using Femlab and Freefem+ tools. We have studied in particular current-voltage characteristics (ID-VDS and ID-VGS), longitudinal electric field, and the variation of drain current with temperature. We have observed a good agreement between the model of Femlab and Freefem+ tools. Two-dimensional numerical simulations are used to describe significant physics phenomena in the characteristics for 0.25 mum gate length NMOSFET transistor.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127411370","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
Design of SIS Mixers for SMA 400 - 520 GHz Band SMA 400 - 520 GHz频段SIS混频器的设计
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534595
C. Li, C.M. Chang, M. Wang, S. Shi
{"title":"Design of SIS Mixers for SMA 400 - 520 GHz Band","authors":"C. Li, C.M. Chang, M. Wang, S. Shi","doi":"10.1109/GSMM.2008.4534595","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534595","url":null,"abstract":"SIS junction mixers were designed for SMA 400 - 520 GHz band, which is similar to ALMA band 8 (380 - 500 GHz). Two schemes were used to tune out the parasitic capacitance of the junction. When shunt inductors were employed, the input resistance is equal to R (close to R0), much higher than R/(omegaRC)2 when series inductors were used. This facilitates the impedance matching between the junction and the waveguide probe. Waveguide probe design was varied to achieve a low feed-point impedance to match the junction resistance. The optimal feed- point impedances for lower receiver noise temperature were also discussed.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123452567","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
A Microstrip Patch Array with Aperture-Coupled Feeding for Ka-Band Applications 用于ka波段应用的带孔耦合馈电的微带贴片阵列
2008 Global Symposium on Millimeter Waves Pub Date : 2008-04-21 DOI: 10.1109/GSMM.2008.4534664
G. Dai, S.L. Lu, M. Xia
{"title":"A Microstrip Patch Array with Aperture-Coupled Feeding for Ka-Band Applications","authors":"G. Dai, S.L. Lu, M. Xia","doi":"10.1109/GSMM.2008.4534664","DOIUrl":"https://doi.org/10.1109/GSMM.2008.4534664","url":null,"abstract":"A Ka-band microstrip patch antenna array with aperture-coupled feeding is presented in this paper. For a single element antenna, an impedance bandwidth (return loss < -10 dB) of 2 GHz is achieved at the central operating frequency of 30 GHz. A 2times2 array and a 4times4 array are simulated, and larger array with more elements is theoretically estimated. Potential applications of the designed Ka-band patch array include the satellite digital communications.","PeriodicalId":304483,"journal":{"name":"2008 Global Symposium on Millimeter Waves","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124884172","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
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