Publication IEICE TRANSACTIONS on CommunicationsVol.E87-BNo.1pp.184-187 Publication Date: 2004/01/01 Online ISSN: DOI: Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Terrestrial Radio Communications Keyword: antennas, microstrip antenna, multiple U-shaped slot, HiperLAN,
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Summary: This paper describes the design, fabrication, and measurement of a multiple U-shaped slot antenna for Hiper-LAN. The prototype consists of a U-shaped slot and two inverted U-shaped slot. To obtain sufficient bandwidth, a foam layer is inserted between the ground plane and substrate. A measured bandwidth of approximately 7.6% (VSWR 1.5) and gain of 2.9-5.3 dBi are obtained. The experimental far-field patterns are shown to be stable across the pass band, with the 3 dB beam width in azimuth and elevation at 50and 62, respectively.