2009 IEEE 10th Annual Wireless and Microwave Technology Conference最新文献_第2页

Driving-signal optimization for LDMOS-SOI class E power amplifier efficiency enhancement 提高LDMOS-SOI E类功率放大器效率的驱动信号优化

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207257

L. A. Montes, M. Villegas, G. Baudoin

引用次数: 1

Design, fabrication and measurement of a GPS-Galileo dual-passband filter GPS-Galileo双通带滤波器的设计、制造和测量

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207302

Ó. Menéndez, P. de Paco, M. Ramirez, J. Verdú, E. Corrales

引用次数: 3

On-chip S11 signal detection circuit 片上S11信号检测电路

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207238

Ming‐Che Lee, W. Eisenstadt

{"title":"On-chip S11 signal detection circuit","authors":"Ming‐Che Lee, W. Eisenstadt","doi":"10.1109/WAMICON.2009.5207238","DOIUrl":"https://doi.org/10.1109/WAMICON.2009.5207238","url":null,"abstract":"As the RF era is ubiquitous nowadays, scattering parameters play an essential role in the modeling and verification of a variety of devices, chips, packages and transmission lines. To reduce the excessive cost in production chip testing with vector network analyzers (VNA), this paper proposes a simple system, utilizing only two lumped directional couplers (DC) and one power divider (DIV), that enables the measurement of the S11 of the device-under-test (DUT) using power and phase detectors. The proposed system is fabricated in the 0.18-um IBM 7RF process with 1.60 mm width and 1.40 mm length die dimensions including the pads. Power and phase detectors can be cascaded in the system to increase the level of integration. The three-port system has a targeted operating frequency of about 10 GHz when all the devices are correctly tuned. The measurement results show the expected behavior at the targeted frequency but inaccuracy occurs away from this frequency. To extend the working frequency band, three types of calibration methods are proposed and verified through simulation. In addition, ad-hoc production testing can still work with this device by using the simple mapping, derived from comparing a measured golden DUT behavior to its pre-characterized behavior.","PeriodicalId":132141,"journal":{"name":"2009 IEEE 10th Annual Wireless and Microwave Technology Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125708161","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

A fault tolerant location management for MNANET MNANET的容错位置管理

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207305

K. Khazaei, S. Mohammadi, A. Momeni

引用次数: 3

Challenges for Quality of Service (QoS) in Mobile Ad-hoc Networks (MANETs) 移动自组网(manet)服务质量(QoS)面临的挑战

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207262

M. Karimi, Deng Pan

引用次数: 36

An adaptive fuzzy logic based vertical handoff decision algorithm for wireless heterogeneous networks 基于自适应模糊逻辑的无线异构网络垂直切换决策算法

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207312

C. Çeken, H. Arslan

{"title":"An adaptive fuzzy logic based vertical handoff decision algorithm for wireless heterogeneous networks","authors":"C. Çeken, H. Arslan","doi":"10.1109/WAMICON.2009.5207312","DOIUrl":"https://doi.org/10.1109/WAMICON.2009.5207312","url":null,"abstract":"Handoff decision making is one of the most challenging issues in wireless heterogeneous networks designs since there are many parameters which have to be considered when triggering handoff and choosing the best candidate access point. Various parameters such as data rate, monetary cost, remaining battery, mobile speed, etc., must be exploited in handoff process of wireless overlapped networks along with the RSSI information which is already utilized widely in traditional networks. Beside these parameters, an effective handoff decision algorithm must be developed to combine and process them as well. In this study, an adaptive fuzzy logic based handoff decision algorithm is introduced for wireless heterogeneous networks. The parameters data rate, monetary cost, RSSI, and mobile speed are considered as inputs of the proposed fuzzy based system. According to these parameters, an output value, which varies between one and ten, is produced. This output describes the candidacy level of the available access points in the vicinity of smart terminal and is utilized in the access point selection algorithm. This algorithm decides whether a handoff is necessary or not, by using the handoff resolution value. The results show that, compared to the traditional RSSI based algorithms the performance is significantly enhanced for both user and network by the method proposed.","PeriodicalId":132141,"journal":{"name":"2009 IEEE 10th Annual Wireless and Microwave Technology Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122649490","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

Structured tone mitigation in 3rd and 4th order MASH Delta-Sigma Modulators-comparative study 三阶和四阶MASH δ - σ调制器的结构音调缓和-比较研究

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207242

A. Telli, I. Kale

引用次数: 2

Reconfigurable and cost-effective FET mixer 可重构和经济高效的FET混频器

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207268

U. Rohde, A. Poddar

引用次数: 0

A multilayer Jerusalem Cross Frequency Selective Surface 多层耶路撒冷交叉频率选择表面

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207235

S. Melais, T. Weller

引用次数: 14

Propagation modeling — a CSP approach 传播建模——一种CSP方法

2009 IEEE 10th Annual Wireless and Microwave Technology Conference Pub Date : 2009-04-20 DOI: 10.1109/WAMICON.2009.5207316

N. Sah, Trilok Chand, D. Bagai

引用次数: 1