Description
This comprehensive summary of the state of the art in Ultra Wideband (UWB) system engineering takes you through all aspects of UWB design, from components through the propagation channel to system engineering aspects. Mathematical tools and basics are covered, allowing for a complete characterisation and description of the UWB scenario, in both the time and the frequency domains. UWB MMICs, antennas, antenna arrays, and filters are described, as well as quality measurement parameters and design methods for specific applications. The UWB propagation channel is discussed, including a complete mathematical description together with modeling tools. A system analysis is offered, addressing both radio and radar systems, and techniques for optimization and calibration. Finally, an overview of future applications of UWB technology is presented. Ideal for scientists as well as RF system and component engineers working in short range wireless technologies.
Chapter
1.1 Definition of UWB signals
1.2 Worldwide regulations
2 Fundamentals of UWB radio transmission
2.1 Description of the UWB radio channel
2.1.1 Time domain and frequency domain
2.1.2 UWB channel in the frequency domain
2.1.3 UWB channel in the time domain
2.2 UWB propagation channel modeling
2.2.2 Ray-tracing for UWB channel modeling
2.3 Parameters for UWB RF system and component characterization
2.3.1 Delay spread of the radio channel
2.3.2 Peak value of the envelope
2.3.6 Gain in the frequency domain
2.4 Impulse radio versus orthogonal frequency division multiplexing
2.5 UWB pulse shapes and pulse shape generation
2.5.1 Classical pulse shapes
2.5.2 Optimal pulse shapes
2.6 Modulation and coding
2.6.2 Pulse position modulation
2.6.3 Orthogonal pulse modulation
2.7.1 Generation of time-hopping codes
2.8 Basic transmitter architectures
2.9 Basic receiver architectures
2.9.1 Coherent receiver for on--off keying and pulse position modulation
2.9.2 Incoherent receiver for pulse position modulation
2.9.3 Receiver for orthogonal modulation
3.1 UWB antenna measurement methods
3.1.1 Calibration and substitution method
3.1.3 Three-antenna method
3.1.4 Direct measurement with one reference standard
3.1.5 Verification in the time domain
3.2.1 UWB antenna principles
3.2.2 Traveling wave antennas
3.2.3 Frequency-independent antennas
3.2.4 Self-complementary antennas
3.2.5 Multiple resonance antennas
3.2.6 Electrically small antennas
3.3 UWB antenna system aspects
3.4 Polarization diversity antennas
3.4.1 Requirements for UWB polarization diversity antennas
3.4.2 Design example 1: dual-polarized traveling wave antennas
3.4.3 Design example 2: dual-polarized antennas with self-cancellationof cross-polarizations
3.4.4 Frequency-independent 180 power splitter
3.5 UWB antennas for medical applications
3.5.1 Analysis of the dielectric properties of human tissue
3.5.2 UWB on-body antennas
3.5.3 Characterizations of UWB on-body antennas
4.1 Array factor in UWB systems
4.1.1 Array factor in the frequency domain
4.1.2 Array factor in the time domain
4.1.4 Radiation characteristics of a real UWB array
4.2 UWB amplitude monopulse arrays
5 Monolithic integrated circuits for UWB transceivers
5.1 Pulse radio transceiver requirements
5.1.1 Indoor channel requirements
5.1.2 Timing accuracy for indoor localization
5.1.3 Example consideration
5.1.4 Implications for circuit design
5.2.1 Generation concepts
5.2.2 All-digital pulse synthesis
5.2.3 Up-conversion approach
5.3.1 Bandwidth-related design trade-offs
5.3.3 Energy detection principle
5.3.4 Cross-correlation principle
5.3.5 Transmitted reference scheme
5.4 RF frontend components
5.4.1 Low-noise amplifier
5.5 Monolithic integration
6.1.1 Modeling of the system components
6.1.2 Modulation and coding
6.1.3 Performance for different system settings -- system analysis
6.1.4 Performance for coherent demodulation
6.1.5 Practical transceiver implementation
6.2.1 Positioning techniques for UWB systems
6.2.2 Steps in the UWB localization system design
6.2.3 Example results of time difference of arrival based UWB positioning
6.2.4 From localization to tracking
6.3.1 UWB signal fidelity
6.3.2 UWB impulse radar measurement scheme
6.3.3 Polarimetric ultra-wideband radar calibration
6.4.1 Overview of UWB imaging
6.4.2 Measurement setup of a fully polarimetric UWB indoor imaging system
6.4.3 Image reconstruction method
6.4.4 Performance of a fully polarimetric UWB imaging system
6.5 UWB medical applications