Journal ArticleDOI
Ultra-wideband wireless systems
G.R. Aiello,G.D. Rogerson +1 more
TLDR
In this article, two UWB multiband systems, frequency hopping and Spectral Keying, have been described, both of which meet the stringent requirements provided by IEEE 802.15.3a.Abstract:
The recent FCC frequency allocation for UWB has generated a lot of interest in UWB technologies. There is 7,500 MHz of spectrum for unlicensed use. The main limitations are provided by the low-power spectral density and by the fact that the transmit signal must occupy at least 500 MHz at whole times. IEEE 802.15.3a is being developed for high-bit-rate PAN applications, and UWB is the most promising technology to support the stringent requirements: 110, 200, and 480 Mb/s. Two UWB multiband systems, frequency hopping and Spectral Keying, have been described in this article. Both systems meet the stringent requirements provided by IEEE 802.15.read more
Citations
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Proceedings ArticleDOI
A 4GHz temperature compensated CMOS ring oscillator for impulse radio UWB
TL;DR: In this article, a voltage controlled ring oscillator (VCO) with a simpler temperature compensation circuit is proposed to produce a stable 4 GHz oscillation frequency. But the proposed circuit is not suitable for the impulse radio ultra wide band (IR-UWB) wireless communication system.
Proceedings ArticleDOI
UWB LNAs using LC ladder and transformers for input matching networks
TL;DR: The most efficient technique, based on LC ladder filtering, providing wide input matching in UWB LNA is first reviewed, and a transformer implementation of this Inductive Degeneration LC Filtering cascode architecture is proposed.
Proceedings ArticleDOI
A novel solution to power problems in implanted biosensor networks.
TL;DR: The great potential of impulse-based UWB signal, in particular low power consumption, low power spectral density, high data rate, and high immunity against interference makes itself an attractive option for implanted biosensor networks.
Proceedings ArticleDOI
An ultra-wideband Darlington low noise amplifier design based on SiGe HBT
TL;DR: A design methodology of Darlington low noise figure (LNA) for application at ultra wide bandwidth using a resistive feedback scheme is proposed in this paper, where the packaged SiGe heterojunction bipolar transistors (HBTs) BFP740 and chip type passive components were used for this direct-coupled LNA.
Journal ArticleDOI
Current reuse topology in UWB CMOS LNA
TL;DR: In this article, a current reuse configuration is proposed to design UWB Low Noise Amplifiers (LNA), which achieves an 11.5 dB gain over a 2 to 9 GHz range.
References
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Rapid acquisition for ultra-wideband localizers
TL;DR: This work has developed a method of rapid acquisition that allows two nodes to acquire each other in a fraction of the time afforded by other methods, utilizing a beacon/listener technique using Kasami sequences and divide-and-conquer algorithms.
Proceedings ArticleDOI
Recent advances in ultra wideband communications systems
TL;DR: Three recent system developments are described: an ad hoc wireless UWB communications network for tactical voice and high-speed data communications; a long range UWB system for over-the-water and non line-of-sight voice, data and video communications.
Proceedings ArticleDOI
UWB technology for wireless video networking
M. Ho,L. Taylor,G.R. Aiello +2 more
TL;DR: The characteristics and the advantages of ultra-wideband (UWB) radio technology when combined with a decentralized, priority-driven network architecture for wireless video networking in the home are described.
Proceedings ArticleDOI
Multi-user perspectives in UWB communications networks
TL;DR: In this article, the authors provide an overview of multiplexing techniques and suggest ways in which they can be applied to UWB networks and relative advantages and challenges of each technique are identified in order to understand the suitabilitability of each for use in a multi-piconet WPAN system.
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