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A Study of High Performance and Reliable CORBA Platform for Open Communication Systems  

장종현 (한국전자통신연구원(ETRI))
이동길 (한국전자통신연구원(ETRI))
한치문 (한국외국어대학교 전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.2, 2004 , pp. 19-29 More about this Journal
Abstract
In this paper, the beam steering dipole phased array antenna systems for IMT-2000 base station have been designed. The designed beam steering dipole phased array antenna systems are constituted by the antenna part and the beam steering control system part. The antenna part is designed by the proposed flat dipole for the broadband characteristics, and the 8${\times}$8 dipole way antenna is constructed by the Proposed flat dipole for the directional radiation pattern. Besides the vertical Power divider is designed for the vertical power distribution. The beam steering control system part is designed the horizontal power divider for the horizontal power distribution, the 4-bit phase shifters and the driving circuit of phase shifters for the horizontal beam tilting. In order to evaluate a performance of the designed antenna systems, they were fabricated and the radiation characteristics were measured. From the measured results, we found that the horizontal beams were tilted by the each control signals, and the measured radiation characteristics showed good agreement with the design goals.
Keywords
CORBA; Middleware; Open Communication System;
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