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IEICE TRANSACTIONS on Communications

Enhancement of Band-Edge Gain in Radial Line Slot Antennas Using the Power Divider--A Wide-Band Radial Line Slot Antenna--

Tetsuya YAMAMOTO, Masaharu TAKAHASHI, Makoto ANDO, Naohisa GOTO

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Summary :

A Radial Line Slot Antenna (RLSA) is a planar antenna for DBS reception. It is a kind of slotted waveguide arrays. The conductor loss is so small that high efficiency is expected irrespective of the aperture diameter. On the other hand, since a RLSA utilizes the traveling waves, the frequency bandwidth is limited by the long line effect, particularly for a larger antenna. A new Wide-Band RLSA (WB-RLSA) is proposed which halves the waveguide length and widens the frequency bandwidth. This paper presents the design and experimental results of a model antenna. A gain of 33.7dBi is measured at the edge of 800MHz bandwidth and its high potential is demonstrated.

Publication
IEICE TRANSACTIONS on Communications Vol.E78-B No.3 pp.398-406
Publication Date
1995/03/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Antennas and Propagation

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