Bidirectional Rod Antennas Comprising a Narrow Patch and Parasitic Elements

Keizo CHO  Toshikazu HORI  Kenichi KAGOSHIMA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E84-B   No.9   pp.2482-2489
Publication Date: 2001/09/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Mobile Antennas
Keyword: 
base station antenna,  bidirectional,  patch antenna,  antenna efficiency,  rod antenna,  

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Summary: 
This paper proposes a novel bi-directional rod antenna comprising a narrow patch and parasitic elements for base station antennas of street microcell systems. It is shown that the parasitic elements improve the antenna efficiency of an ordinary bi-directional printed antenna and make it possible to form the antennas using conventional substrates. This paper also proposes a suitable configuration for the array and investigates radiation characteristics of the configuration. Finally, a prototype of the bi-directional rod antenna is presented and the effectiveness of the bi-directional antenna is evaluated.