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Showing posts with label IEEE. Show all posts
Showing posts with label IEEE. Show all posts
Wednesday, March 11, 2015
Communication networks,
Computer networks,
Control systems,
IEEE,
IEEE Explore,
IEEE free downloads,
IP networks,
Software defined networking,
Virtualization
Tuesday, March 10, 2015
Coupled lines with two shorts,
FREE IEEE PAPERS : TOP 100 JANUARY 2015,
high characteristic impedance,
IEEE,
IEEE Explore,
unequal Wilkinson power divider
Some Description of FREE Download IEEE Paper, A 10:1 Unequal Wilkinson Power Divider Using Coupled Lines With Two Shorts
An alternative way to realize an unequal power divider with large dividing ratio can be through using a simple directional coupler. In order to obtain zero phase difference at the output ports, a phase shifter is needed to add to the coupler. This can be realized by using either a piece of transmission line or an integrated wideband phase shifter. The circuit will then either be narrowband in phase response due to presence of the extra transmission line, or become complicated when using the integrated wideband phase shifter. On the other hand, the structure of the directional coupler is more sensitive to the fabrication tolerance, since its dividing ratio is directly determined by coupling
coefficient. In our proposed power divider, however, the coupling coefficient of the coupled line only slightly affects the bandwidth, therefore leading to an easy fabrication.
To avoid the fabrication difficulties, the high characteristic impedance line is realized by using a coupledline section with two shorts. A design example at 2 GHz is fabricated and tested. The measurements agree very well with the simulations. The measured bandwidth of is about 16%. Over this operation bandwidth, the isolation is better than . The measured amplitude balance betweenoutput port 2 and port 3 is between and , and the phase difference is between 0 and 4.6 . The proposed
structure is compatible with single layer integration and easy to design, therefore very attractive for high power dividing ratio applications.
An alternative way to realize an unequal power divider with large dividing ratio can be through using a simple directional coupler. In order to obtain zero phase difference at the output ports, a phase shifter is needed to add to the coupler. This can be realized by using either a piece of transmission line or an integrated wideband phase shifter. The circuit will then either be narrowband in phase response due to presence of the extra transmission line, or become complicated when using the integrated wideband phase shifter. On the other hand, the structure of the directional coupler is more sensitive to the fabrication tolerance, since its dividing ratio is directly determined by coupling
coefficient. In our proposed power divider, however, the coupling coefficient of the coupled line only slightly affects the bandwidth, therefore leading to an easy fabrication.
To avoid the fabrication difficulties, the high characteristic impedance line is realized by using a coupledline section with two shorts. A design example at 2 GHz is fabricated and tested. The measurements agree very well with the simulations. The measured bandwidth of is about 16%. Over this operation bandwidth, the isolation is better than . The measured amplitude balance betweenoutput port 2 and port 3 is between and , and the phase difference is between 0 and 4.6 . The proposed
structure is compatible with single layer integration and easy to design, therefore very attractive for high power dividing ratio applications.
Friday, March 6, 2015
Thursday, March 5, 2015
4G mobile communication,
cellular radio,
IEEE,
IEEE Explore,
IEEE free downloads,
Long Term Evolution,
mobile antennas,
wireless LAN
GET FREE ACCESS DOCUMENT FOR FREE IEEE PAPERS : TOP 100 JANUARY 2015
HOW TO DOWNLOAD : click on the title you want, when there is no paper that can be downloaded, please directly contact us through this page.
HOW TO DOWNLOAD : click on the title you want, when there is no paper that can be downloaded, please directly contact us through this page.
- Data miningwith big data
- What Will 5GBe?
- Cellulararchitecture and key technologies for 5G wireless communication networks
- Securitythreats in cloud computing
- Software-DefinedNetworking: A Comprehensive Survey
- Massive MIMOfor next generation wireless systems
- An Overview of Massive MIMO: Benefits and Challenges
- Compressed sensing
- Scenarios for 5G mobile and wireless communications: the vision of the METIS project
- 5G technology of mobile communication: A survey
- Agent-Based Cloud Computing
- Defining architecture components of the Big Data Ecosystem
- A Computational Approach to Edge Detection
- Five disruptive technology directions for 5G
- A Survey of Software-Defined Networking: Past, Present, and Future of Programmable Networks
- Research Directions for the Internet of Things
- Histograms of oriented gradients for human detection
- A Frequency and Polarization Reconfigurable Circularly Polarized Antenna Using Active EBG Structure for Satellite Navigation
- A tutorial on hidden Markov models and selected applications in speech recognition
- Direct mobile-to-mobile communication: Paradigm for 5G
- Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey
- Statistical pattern recognition: a review
- Image quality assessment: from error visibility to structural similarity
- Robust Face Recognition via Sparse Representation
- Wearable Sensors for Human Activity Monitoring: A Review
- An Introduction To Compressive Sampling
- Context Aware Computing for The Internet of Things: A Survey
- A fast and elitist multiobjective genetic algorithm: NSGA-II
- Multilevel inverters: a survey of topologies, controls, and applications
- Image Quality Assessment for Fake Biometric Detection: Application to Iris, Fingerprint, and Face Recognition
- Image Super-Resolution Via Sparse Representation
- Toward efficient and privacy-preserving computing in big data era
- Design considerations for a 5G network architecture
- Modeling and Optimization for Big Data Analytics: (Statistical) learning tools for our era of data deluge
- Spatial Modulation for Generalized MIMO: Challenges, Opportunities, and Implementation
- Challenges in 5G: how to empower SON with big data for enabling 5G
- A survey on sensor networks
- Representation Learning: A Review and New Perspectives
- A Fully Synthesizable All-Digital PLL With Interpolative Phase Coupled Oscillator, Current-Output DAC, and Fine-Resolution Digital Varactor Using Gated Edge Injection Technique
- Overview of Control and Grid Synchronization for Distributed Power Generation Systems
- Dual Polarization Slotted Miniature Wideband Patch Antenna
- The path of the smart grid
- A 0.13 µm CMOS System-on-Chip for a 512 × 424 Time-of-Flight Image Sensor With Multi-Frequency Photo-Demodulation up to 130 MHz and 2 GS/s ADC
- Toward Energy Efficient Big Data Gathering in Densely Distributed Sensor Networks
- A simple transmit diversity technique for wireless communications
- Smart Grid Technologies: Communication Technologies and Standards
- Challenges of System-Level Simulations and Performance Evaluation for 5G Wireless Networks
- Internet of Things in Industries: A Survey
- A Real-Time QRS Detection Algorithm
- Robust uncertainty principles: exact signal reconstruction from highly incomplete frequency information
- Big Data and the SP Theory of Intelligence
- Particle swarm optimization
- Cognitive radio: brain-empowered wireless communications
- Optical Vehicle-to-Vehicle Communication System Using LED Transmitter and Camera Receiver
- A Survey on Software-Defined Network and OpenFlow: From Concept to Implementation
- Super-resolution image reconstruction: a technical overview
- 5G wireless backhaul networks: challenges and research advances
- Modulation Formats and Waveforms for 5G Networks: Who Will Be the Heir of OFDM?: An overview of alternative modulation schemes for improved spectral efficiency
- Big data: Issues, challenges, tools and Good practices
- Future on Power Electronics for Wind Turbine Systems
- Permission Use Analysis for Vetting Undesirable Behaviors in Android Apps
- Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas
- Smart Grid — The New and Improved Power Grid: A Survey
- Leakage current mechanisms and leakage reduction techniques in deep-submicrometer CMOS circuits
- 5G wireless access: requirements and realization
- Evolution toward 5G multi-tier cellular wireless networks: An interference management perspective
- Captcha as Graphical Passwords—A New Security Primitive Based on Hard AI Problems
- A Survey on Device-to-Device Communication in Cellular Networks
- Big data: A review
- Device-to-device communication in 5G cellular networks: challenges, solutions, and future directions
- Rapid object detection using a boosted cascade of simple features
- Online Social Networks: Threats and Solutions
- A Social Compute Cloud: Allocating and Sharing Infrastructure Resources via Social Networks
- A Low-Profile, Low-Backlobe and Wideband Complementary Antenna for Wireless Application
- A Beam-Steering Reconfigurable Antenna for WLAN Applications
- Mimo for millimeter-wave wireless communications: beamforming, spatial multiplexing, or both?
- An Overlay-Based Data Mining Architecture Tolerant to Physical Network Disruptions
- Scaling Up MIMO: Opportunities and Challenges with Very Large Arrays
- Mean shift: a robust approach toward feature space analysis
- Integration of SDR and SDN for 5G
- The role of small cells, coordinated multipoint, and massive MIMO in 5G
- Weighted Guided Image Filtering
- Battery Energy Storage Station (BESS)-Based Smoothing Control of Photovoltaic (PV) and Wind Power Generation Fluctuations
- Analysis and Design of a Low-Voltage Low-Power Double-Tail Comparator
- Understanding Cloud Computing Vulnerabilities
- IEEE Recommended Practice for Software Requirements Specifications
- The requirements, challenges, and technologies for 5G of terrestrial mobile telecommunication
- A 1 GS/s 10b 18.9 mW Time-Interleaved SAR ADC With Background Timing Skew Calibration
- Unobtrusive Sensing and Wearable Devices for Health Informatics
- Substrate Integrated Waveguide Directional Couplers for Compact Three-Dimensional Integrated Circuits
- IEEE Standard Glossary of Software Engineering Terminology
- Smart home energy management system including renewable energy based on ZigBee and PLC
- Communicating While Computing: Distributed mobile cloud computing over 5G heterogeneous networks
- PID control system analysis, design, and technology
- A 28 Gb/s 560 mW Multi-Standard SerDes With Single-Stage Analog Front-End and 14-Tap Decision Feedback Equalizer in 28 nm CMOS
- Android Security: A Survey of Issues, Malware Penetration and Defenses
- Does Gamification Work? -- A Literature Review of Empirical Studies on Gamification
- Device-to-Device Communications for National Security and Public Safety
- Trends in Microgrid Control
- Shared Authority Based Privacy-Preserving Authentication Protocol in Cloud Computing
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