Effects of Bragg Scattering on Ultra-Wideband Signal Transmission from Periodic Surfaces

Hiroaki TSUCHIYA
Navarat LERTSIRISOPON
Jun-ichi TAKADA
Takehiko KOBAYASHI

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B    No.2    pp.536-542
Publication Date: 2008/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.2.536
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
Keyword: 
Bragg scattering,  ultra-wideband,  UWB transmission,  propagation,  

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Summary: 
In this paper, the effects of Bragg scattering on ultra-wideband (UWB) signal transmission from periodic surfaces are reported. First, the frequency dispersive property of Bragg scattering is theoretically and experimentally confirmed. Next, the transfer function of both specular path and Bragg scattering are extracted. Then direct sequence UWB (DS-UWB) transmission simulations are conducted by using a raised cosine pulse that occupied 3.1 to 10.6 GHz and a Gaussian pulse that occupied 8.75 to 9.25 GHz. Finally, the effects of Bragg scattering on UWB systems are discussed.