Title :
Switched four-sector beam antenna for indoor wireless LAN systems in the 60 GHz band
Author :
Ihara, Toshio ; Manabe, Takeshi ; Iigusa, Kyoichi ; Kijima, Uoru ; Murakami, Yasushi ; Iwasaki, Hisao
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Koganei, Japan
Abstract :
A switched four-sector beam antenna for a wireless LAN system in the 60 GHz band has been developed. The antenna has a pyramidal configuration. Each isosceles triangular surface of the pyramid has been inclined 30° from the vertical axis, in order to cover from low elevation angles to the zenith direction. Four sector beams which have 900 half-power beam width can cover 360° in the azimuth plane. Each sector beam achieved more than 6.5 dBi and the axial ratio of less than 2.5 dB in the 59-60 GHz band
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; indoor radio; microstrip antenna arrays; microwave links; millimetre wave antenna arrays; wireless LAN; 60 GHz; EHF; MM-wave antenna; circular polarisation; indoor wireless LAN systems; isosceles triangular plate; paired-element patch antenna; pyramidal configuration; switched four-sector beam antenna; Asynchronous transfer mode; Azimuth; Directional antennas; Directive antennas; Floors; Laboratories; Millimeter wave communication; Polarization; Propagation delay; Wireless LAN;
Conference_Titel :
Millimeter Waves, 1997 Topical Symposium on
Conference_Location :
Kanagawa
Print_ISBN :
0-7803-3887-1
DOI :
10.1109/TSMW.1997.702485
