E-Book, Englisch, 350 Seiten
Hilbert Tunable RF Components and Circuits
1. Auflage 2015
ISBN: 978-1-4987-1892-9
Verlag: CRC Press
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)
Applications in Mobile Handsets
E-Book, Englisch, 350 Seiten
Reihe: Devices, Circuits, and Systems
ISBN: 978-1-4987-1892-9
Verlag: CRC Press
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)
This book provides a comprehensive review of the state of the art in tunable RF for mobile handsets. With chapters contributed by industry experts who collectively represent the vast majority of today’s tunable RF product revenue, the book supplies essential background in the underlying technologies and theories to give readers the tools necessary to ride the tunable RF wave successfully. Numerous examples and case studies demonstrate the application of the technologies and highlight the differences and trade-offs between alternate technologies and implementation methodologies.
Autoren/Hrsg.
Fachgebiete
Weitere Infos & Material
Tunable RF Market Overview
Introduction
The Mobile Handset Market
Evolution of Handset RF Front End Architectures
What is Tunable RF? Tunable RF Market Snapshot
Tunable RF Component and Circuit Outlook
Summary/Conclusions
References
RFSOI Technologies for Reconfigurable RF Solutions
Introduction to RFSOI Technology
RF Silicon Substrate Development
Modern RFSOI Device Fabrication and Device Physics
RF Switch Cells
Primer on RF/DC Switch-Specific Relevant Metrics
Switchable Capacitor Banks using RFSOI Technologies
Tunable and Reconfigurable Applications Built with RFSOI Technologies
Summary/Conclusions
References
BST Technology for Mobile Applications
Introduction
Market Trends in Mobile Handsets that Present the Antenna Challenge
BST Core Technology Overview
BST Device Physics with Application to RF Requirements
BST Antenna Tuning Application History
BST Technology Future
Summary/Conclusions
References
Tuned Antennas for Embedded Applications
Introduction and Overview
Radiation Theory: Basics, Loss Mechanisms, Bandwidth, Radiation Mechanisms
Antenna Requirements: Current and Future: Band Coverage, Radiation Efficiency, Coupling, Correlation, Architectural Variants
Basic Antenna types: IFA, PIFA, Monopole, Ring, Slot
Tuning Methodology and System Concepts: Aperture-Based, Match-Based, Open Loop, Closed Loop
Tuning Component Requirements: Loss Mechanisms, Parasitics, Non-Linearity
Tuned Antenna Examples
Summary/Conclusions
References
Tunable and Adaptive Antenna Systems
Introduction and Description of Passive Antenna System Limitations
Tunable Matching Circuits
Band Switching Techniques
Radiation Pattern Optimization
Summary/Conclusions
References
Effective Antenna Aperture Tuning with RF-MEMS
Antennas and MEMS: Advantages and Limitations of MEMS and How to Leverage Advantages in an Antenna Design
Tradeoff of Instantaneous Bandwidth and System Requirements
Antenna Volume and Efficiency Expectations
Maximizing Efficiency Starting Point: the Limits of Loading and Unloading the Antenna
Tunable Component Placement on the Antenna Structure
Antenna/Aperture Tuning Examples
Summary/Conclusions
References
RF-CMOS Impedance Tuners – Performance Metrics and Design Trade-Offs
Fundamentals of Semiconductor Switched Capacitor Networks
Design Trade-Off Space
Parasitic Substrate Effects (SOI versus SOS)
Impedance Tuners
Summary/Conclusions
References
Antenna Tuning Using BST Devices
Antenna Feedpoint Tuning
On-Antenna Tuning
Summary/Conclusions
References
Aperture Tunable Antennas: Handset OEM Perspective
Tunable Antenna Design Challenges
Survey of Tunable Antenna Technology
Design and Verification Methods
Summary/Conclusions
References
Tunable RF-MEMS Filters
Introduction to RF-MEMS Technology
RF-CMOS MEMS Fabrication, Packaging and Test
Tunable Digital Capacitor Array Architecture
Filter Applications and Requirements for Mobile Handsets
Tunable Filter Design Considerations
Design of Tunable RF-MEMS Filters
Tunable RF-MEMS Filter Examples
Summary/Conclusions
References
Power Amplifier Envelope Tracking
What is Envelope Tracking (ET)? Generating the Envelope Signal
Modeling the ET Power Amplifier (PA)
The ET Shaping Table
The ET Supply Modulator
How ET Affects PA Design
ET and Digital Pre-Distortion
Optimizing ET System Performance
ET into Mismatched Loads
Summary/Conclusions
References
RF-MEMS Switching in the Mobile Front End
Development of Wireless Technologies
RF-MEMS Switch Value Proposition
Discussion of Example RF-MEMS Switch
Summary/Conclusions
References
Tunable Radio Architectures
Introduction
Context Aware RFFE Resource Manager
Envisioned Protocol Stack and Overall Integration
Context Aware RFFE Resource Manager Interfacing Concepts
Multi-Band, Multi-RAT Tunable Radio Platform Architecture
Summary/Conclusions
References
Network Operator Perspectives
LTE Deployments and Challenges
Mobile Device Support for Advanced LTE Radio Platforms
Future Business Opportunities in LTE
Network Architecture to Improve User Access Capability
Innovative Spectrum Access Drives Further Mobile FEM Evolution
Summary/Conclusions. References
Testing Wireless Devices in Manufacturing
Wireless Device Design Considerations
Manufacturing Defect Identification
Typical Test Apparatus and Methods
Wireless Testing of Wireless Devices
Breakthroughs in Wireless Testing of Wireless Devices
Summary/Conclusions
References
Acronyms and Abbreviations