A Four-Sector Shaped-Beam Antenna for 60-GHz Wireless LANs

Yasushi MURAKAMI  Hisao IWASAKI  Tooru KIJIMA  Akihito KATO  Takeshi MANABE  Toshio IHARA  Masayuki FUJISE  

IEICE TRANSACTIONS on Electronics   Vol.E82-C    No.7    pp.1293-1300
Publication Date: 1999/07/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Systems
microwave and millimeter wave technology,  microstrip antenna,  shaped beam,  multi-sector antenna,  wireless LANs,  

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This paper presents a novel four-sector shaped-beam antenna suitable for base station antennas in 60-GHz wireless local area networks (LANs). The antenna has a plateau configuration, whose four side walls have four linearly arranged microstrip antennas. Each trapezoidal facet excites a shaped beam in the elevation plane in order to meet link-budget requirement between base station and remote terminal, taking account of directional patters of remote terminal antennas. Low-loss curved microstrip-line is applied to connect the three-dimensional antennas with active circuits mounted on a flat carrier plate. This antenna has been adopted as the base station antenna in 60-GHz wireless LANs. The first-stage transmission experiment confirms the usefulness of shaped-beam antennas in the 60-GHz band.