By Peter S Hall, Yang Hao
ISBN-10: 1580534937
ISBN-13: 9781580534932
ISBN-10: 1596930624
ISBN-13: 9781596930629
Prepare for the tidal wave of "body centric" digital platforms that might take cellular communications and computing to new heights! This first-of-its-kind booklet can assist engineers pave the best way with its definitive therapy of on-body antenna thought, layout and purposes. It coverers either the state of the art in present structures including new advances resulting in scientific, own leisure, legislation enforcement, and army purposes now in improvement.
This state of the art source briefs engineers on key propagation matters after which dives into the nuts-and-bolts of antenna layout that gives you the products. It covers on-body conversation channels at microwave frequency and coffee frequency bands, in addition to extremely wideband platforms for WPANs and WBANs. jam-packed with hands-on counsel from famous specialists, this quantity can be crucial to all engineers eager about designing, trying out, and bettering body-centric conversation platforms.
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Extra resources for Antennas And Propagation for Body-Centric Wireless Communications
Sample text
1 The Uniform Geometrical Theory of Diffraction The Uniform Geometrical Theory of Diffraction (UTD), and its earlier version, the Geometrical Theory of Diffraction (GTD), are based on geometric optics (GO) and diffraction theory [48]. It assumes that all waves are local plane waves, so that ray tracing (RT) can be used. GTD and UTD require that objects under study are electrically large, as is the case for the human body in Bluetooth and WLAN frequency bands. Reflection and transmission (or penetration) is the basic phenomenon when the interactions between propagation waves and the surrounding environment occur.
11 shows the frequency-dependent dielectric constant and conductivity of human muscle from measurement, and their stair-casing approximation used in the proposed subband FDTD model. 16) i =1 where Fr,i( ) is the received frequency domain signal at the ith subband, Ai( ) is a rectangle window function associated with the bandwidth of the ith subband, and N is the total number of subbands. Finally, the combined frequency domain signal is inverse Fourier transformed into the time domain to obtain the time delay profile.
And S. S. Stuchly, “Dielectric Properties of Biological Substances—Tabulated,” J. of Microwave Power, Vol. 15, No. 1, 1980, pp. 19–26. Foster, K. , and H. P. Schwan, “Dielectric Properties of Tissues and Biological Materials: A Critical Review,” Critical Reviews in Biomedical Engineering, Vol. 17, No, 1, 1989, pp. 25–104. Duck, F. , Physical Properties of Tissue: A Comprehensive Reference Book, New York: Academic Press, Harcourt Brace Jovanovich, 1990. , Compilation of the Dielectric Properties of Body Tissues at RF and Microwave Frequencies, Brooks Air Force Technical Report, AL/OE-TR-1996-0037, 1996.
Antennas And Propagation for Body-Centric Wireless Communications by Peter S Hall, Yang Hao
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