Silicon-Based RF Front-Ends for Ultra Wideband Radios

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(97 Seiten)
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ISBN-13:
9781402067228
Einband:
eBook
Seiten:
97
Autor:
Aminghasem Safarian
Serie:
Analog Circuits and Signal Processing
eBook Typ:
PDF
eBook Format:
eBook
Kopierschutz:
Adobe DRM [Hard-DRM]
Sprache:
Englisch
Beschreibung:

"Ultra-wideband (UWB) is a promising technology for high speed short distance communication, as well as low data-rate low power communication for object localization and sensor networks. The most important characteristic of UWB is the operation in power-limited regime while achieving high channel capacity. The main challenge lies in designing transceivers for wideband signals.
Chapter 1 Introduction. 1.1. Organization of the Book Chapter 2 Ultra Wideband Systems. 2.1. Wireless World of Technologies. 2.2. UWB Applications : high speed short range communication, long range localization. 2.3. UWB Signals. 2.4. Advantages of Ultra Wideband over Narrow-band Systems. 2.5. UWB Transceiver Architecture. 2.6. Challenges. 2.7. Link Budget. References. Chapter 3 UWB Distributed Low Noise Amplifiers (DLNA). 3.1. Wideband LNA Matching. 3.2. Background: Distributed Circuits. 3.3. CMOS Performance optimized DLNA. 3.4. Noise Analysis. 3.5. Linearity Analysis. 3.6. Mesurement Results. 3.7. Summary. References. Chapter 4 Distributed RF Front-End. 4.1. UWB Zero/Low IF Dual Conversion Receivers. 4.2. UWB-DRF. 4.3. Experimental Results. 4.4. Summary. References. Chapter 5 Distributed RF Front-End for UWB Direct Conversion Receiver. 5.1. Distributed RF Front-End for Direct Conversion Receiver. 5.2. Current Equalization to Remove IQ Gain/Phase Imbalances. 5.3. Measurement Results. 5.4. Summary. References. Chapter 6 Distributed Active Power Combiners and Splitters for Multi-Antenna UWB Beamforming Transceivers. 6.1. MA-UWB Transceiver Architectures with Beamforming. 6.2. Distributed Power Combiner and Splitter. 6.3. Experimental Results. 6.4. Summary. References. Chapter 7. Conclusions. Index.
Ultra-wideband (UWB) technology enables high data-rate short-range communi- tion, in excessof hundredmegabit-per-secondsand up to multi-gigabit-per-seconds, over a wide spectrum of frequencies, while keeping power consumption at low l- els. This low power operation results in a less-interfering co-existence with other existed communication technologies (e.g., UNII bands). In addition to carrying a huge amount of data over a distance of up to 230 feet at very low power (less than 0.5mW), the UWB signal has the ability to penetrate through the doors and other obstacles that tend to re?ect signals at more limited bandwidths and higher power densities. The key attributes of UWB technology, therefore, include; high data rates, ranging and communication applications, low equipment cost, and immunity to the multipath fading. These features have motivated the researchers to investigate performance-optimizedintegrated circuit (IC) solutions for UWB technology. To best utilize theentire UWB spectrumspeci?ed bythe FCC from3.1GHzupto 10.6GHz, the constituent transceiver should operate across this wide spectral band. On the other hand, designing RF front-end circuits, particularly in CMOS techn- ogy, for UWB transceivers entails stringent challenges associated with wideband requirements. In fact, the RF front-end has to exhibit wideband RF characteristics of gain, noise ?gure, and linearity, as well as low power consumption. The scope of this book includes design and analysis of novel wideband RF front-ends for UWB transceivers in silicon technologies. A great deal of emphasis will be made on the exploration of new performance-optimized distributed integrated circuit topologies for UWB wireless radios.

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