Title :
Metamaterial-based spiral antenna with unbalanced excitation
Author :
Hisamatsu Nakano;Kenji Anjo;Junji Yamauchi
Author_Institution :
Science and Engineering, Hosei University, Koganei, Tokyo, Japan
fDate :
3/1/2015 12:00:00 AM
Abstract :
The radiation from a metamaterial-based two-arm spiral antenna is investigated, where the phase relationship of the excitation sources for the two arms (deviation phase) is varied to cause unbalanced-mode excitation. It is found that the radiation field in the antenna-axis direction decreases by 1-dB when the deviation phase reaches approximately 60 degrees.
Keywords :
"Spirals","Antenna radiation patterns","Directive antennas","Metamaterials","Radiation detectors","Erbium"
Conference_Titel :
Antenna Technology (iWAT), 2015 International Workshop on
DOI :
10.1109/IWAT.2015.7365341
