Title :
Analysis of an optical nanodipole antenna with a stub
Author :
Shibayama, Jun ; Sasaki, Naoki ; Yamauchi, Junji ; Nakano, Hisamatsu
Author_Institution :
Fac. of Sci. & Eng., Hosei Univ., Koganei, Japan
Abstract :
Optical nanodipole antennas using surface plasmon polaritons are numerically investigated with the three-dimensional finite-difference time-domain method. The length of the dipole arm is determined using the effective index of the metal rod calculated from the eigenmode analysis. A stub structure is introduced to match the impedance between the nanodipole antenna and the feeding waveguide. The radiation efficiency and reflectivity are calculated and discussed.
Keywords :
antenna feeds; dipole antennas; eigenvalues and eigenfunctions; finite difference time-domain analysis; metamaterial antennas; nanophotonics; plasmonics; polaritons; surface plasmons; waveguide antennas; 3D finite-difference time-domain method; dipole arm; eigenmode analysis; feeding waveguide; optical nanodipole antenna; stub structure; surface plasmon polaritons; Antenna feeds; Dipole antennas; Educational institutions; Impedance; Metals; Optical waveguides;
Conference_Titel :
Antennas and Propagation in Wireless Communications (APWC), 2014 IEEE-APS Topical Conference on
Conference_Location :
Palm Beach
Print_ISBN :
978-1-4673-5690-9
DOI :
10.1109/APWC.2014.6905532
