Title :
Polarization dependence of multipath propagation and high-speed transmission characteristics of indoor millimeter-wave channel at 60 GHz
Author :
Manabe, Takeshi ; Sato, Katsuyoshi ; Masuzawa, Hiroshi ; Taira, Kazumasa ; Ihara, Toshio ; Kasashima, Yoshinori ; Yamaki, Katsunori
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Koganei, Japan
fDate :
5/1/1995 12:00:00 AM
Abstract :
Measurements of polarization dependence of multipath-propagation characteristics were conducted at 60 GHz in a room within a modern office building. Delay profiles were measured using a swept frequency method with a high time-delay resolution of 2 ns. Directions of arrival of the multipath components reflected from walls were analyzed by rotating a narrow-beam receiving antenna with an angular resolution of 5 degrees. Results of this experiment showed that multipath delayed waves due to wall reflection can be effectively suppressed by employing circular polarization instead of linear polarization. Based on this experimental result, a computer simulation was made to clarify the polarization dependence of the high-speed transmission characteristics of an indoor communications system operating at 60 GHz
Keywords :
business communication; delays; direction-of-arrival estimation; electromagnetic wave polarisation; electromagnetic wave reflection; indoor radio; millimetre wave propagation; multipath channels; wireless LAN; 60 GHz; EHF; MM wave communication; circular polarization; delay profiles; directions of arrival; high-speed transmission characteristics; indoor millimeter-wave channel; linear polarization; modern office building; multipath delayed waves; multipath propagation; narrow-beam receiving antenna; polarization dependence; room; swept frequency method; wall reflection; Antenna accessories; Antenna measurements; Delay effects; Directive antennas; Frequency measurement; Polarization; Propagation delay; Receiving antennas; Reflection; Reflector antennas;
Journal_Title :
Vehicular Technology, IEEE Transactions on
