Summary
International Symposium on Antennas and Propagation
2006
Session Number:2C2a
Session:
Number:2C2a-3
A fundamental study on a switched-beam sector slot-array antenna in 60 GHz band
Nobuyuki TENNO, Amane MIURA, Takashi ITOH, Makoto TAROMARU, Takashi OHIRA,
pp.1-5
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
This paper describes a switched-beam sector slot-array antenna that can be common used as both an access point antenna fixed on the ceiling and a user terminal antenna for practical applications of multi-gigabit wireless LAN in 60 GHz band. Print-circuit board, which is low cost and suitable for mass production, was assumed to be applied for manufacturing the antenna. To study fundamental characteristics of sector-beam forming, one sector was extracted from the whole structure, and analysed by finite element simulation (HFSS). Secantbeam was obtained in vertical plane. The main beam was tilted to around -60 degree with the maximum gain of about 11.0 dBi at 62.5 GHz. We also proposed improved model that has a metal-plated rectangular cavity at the edge of the antenna. The model provided higher gain in oblique directions (long-distance) as well as lower gain around vertical directions (short-distance). It almost satisfied the system requirement.