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New Method for Evaluating Height Gain at Subscriber Station for Wireless Access Systems in Microwave Band

Naoki KITA, Wataru YAMADA, Akio SATO

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Summary :

This paper presents a model for the variation in height of the subscriber station (SS) antenna with respect to the path loss for microwave-band wireless access systems. The propagation mechanism that causes the dependency of the height variation characteristics of the received level at an SS on the SS location and operating frequency is clarified in terms of geometrical optics (GO) using the uniform geometrical theory of diffraction (UTD). The height variation characteristics strongly depend on whether or not regular reflected waves that have a higher level than that of the diffracted wave arrive at the SS. A representation of the model is shown. The model is validated using measured data at 2.2, 5.2, and 25.15 GHz and the validity of the model is shown. This model is useful in the radio zone design of microwave-band broadband wireless access (BWA) systems operating in a non-line-of-sight environment, and in estimating the height gain at a mobile station antenna for mobile communications.

Publication
IEICE TRANSACTIONS on Communications Vol.E90-B No.10 pp.2903-2914
Publication Date
2007/10/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e90-b.10.2903
Type of Manuscript
PAPER
Category
Antennas and Propagation

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