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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Journal ArticleDOI
Design of Inscribed Circle Apollo UWB Fractal Antenna with Modified Groundplane
Tejal R. Mehetre,Raj Kumar +1 more
TL;DR: In this paper, the authors have achieved two ultra wideband antennas by applying fractal geometry with co-planar waveguide (CPW) feeding technique on dielectric substrate er= 4.3 and thickness h = 1.53 mm.
Journal ArticleDOI
A novel ultra-wideband bandpass filter using defected microstrip structures
TL;DR: A novel ultra-wideband (UWB) bandpass filter with compact size, improved stopband performance and wider bandwidth is presented, and the insertion loss is less than 0.5 dB with good return loss.
Journal ArticleDOI
A Novel Pulse Design Based on Hermite Functions for UWB Communications
TL;DR: Close form expressions of auto-and cross-correlation functions of the proposed pulses are given, which can be used to evaluate the performance of the correlator receiver and indicate that the systematic algorithm is flexible for designing ultra-wideband pulses that conform to spectral emission constraints and offer good bit error rate performance.
Proceedings ArticleDOI
A fully integrated LNA for 3-5 GHz UWB wireless applications in 0.18-μm CMOS technology
TL;DR: In this paper, a fully integrated low noise amplifier (LNA) employing a cascode topology and an RC feedback network is proposed for an ultra wideband (UWB) wireless system in a 0.18mum RF CMOS technology.
Proceedings Article
Design and analysis of a high-linear UWB CMOS mixer
TL;DR: In this paper, the design, simulation and analysis of a high-linearity, high-gain, low-power, and inductorless 3.1-4.8 GHz ultra-wideband (UWB) down-conversion mixer in a 1.8V, 0.18 μm CMOS process is described.
References
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Proceedings ArticleDOI
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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