@article{oai:soar-ir.repo.nii.ac.jp:00011880,
 author = {Miyamaru,  F. and Saito,  Y. and Takeda,  M. W. and Liu,  L. and Hou,  B. and Wen,  W. and Sheng,  Ping},
 issue = {22},
 journal = {APPLIED PHYSICS LETTERS},
 month = {Nov},
 note = {This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in APPLIED PHYSICS LETTERS. 95(22):221111 (2009) and may be found at https://doi.org/10.1063/1.3271181 ., We investigate the emission of terahertz radiation from a photoconductive fractal antenna fabricated on a semi-insulating gallium arsenide substrate. Owing to the self-similarity of fractal structures, our fractal antenna shows a multiband emission of terahertz radiation. The emission intensity at peak frequency is about twice that from a bow-tie antenna. We also investigate the mechanism of the multiband emission by using the finite-difference time-domain calculation., Article, APPLIED PHYSICS LETTERS. 95(22):221111 (2009)},
 title = {Emission of terahertz radiations from fractal antennas},
 volume = {95},
 year = {2009}
}