TY - GEN
T1 - THz leaky mode properties exhibited in a plasmonic waveguide with periodic subwavelength corrugated metallic wire structure
AU - Wu, Jin Jei
AU - Yang, Tzong Jer
AU - Wu, Chien Jang
AU - Chiueh, Her Lih
AU - Chung, In Hang
AU - Shen, Jian Qi
AU - Yuan, Chengchi
AU - Huang, Pin Jung
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/3
Y1 - 2016/11/3
N2 - In this report, the phenomena of low-frequency spoof surface plasmon polaritons (spoof SPPs) in a new metallic cylindrical antenna at terahertz (THz) frequencies are demonstrated. The antenna is designed as a periodic structure whose unit cell includes an open hollow ring (OHR) as compared with the conventional periodic subwavelength corrugated metallic wire (PSCMW) with cylindrical structure. Near- and far-field distributions, dispersion properties, and radiation efficiency are numerically evaluated and then compared for both PSCMW and PSCMW-OHR. It is indicated that when the dispersion line passes through the light line into a radiation zone, the field becomes a leaky mode. We find that the far-field radiation of the leaky mode can generate frequency scanning effects with a scanning angle of 23°, and the radiation efficiency can be increased to 90% as the number of periodic unit cells is large enough.
AB - In this report, the phenomena of low-frequency spoof surface plasmon polaritons (spoof SPPs) in a new metallic cylindrical antenna at terahertz (THz) frequencies are demonstrated. The antenna is designed as a periodic structure whose unit cell includes an open hollow ring (OHR) as compared with the conventional periodic subwavelength corrugated metallic wire (PSCMW) with cylindrical structure. Near- and far-field distributions, dispersion properties, and radiation efficiency are numerically evaluated and then compared for both PSCMW and PSCMW-OHR. It is indicated that when the dispersion line passes through the light line into a radiation zone, the field becomes a leaky mode. We find that the far-field radiation of the leaky mode can generate frequency scanning effects with a scanning angle of 23°, and the radiation efficiency can be increased to 90% as the number of periodic unit cells is large enough.
UR - https://www.scopus.com/pages/publications/85006812911
UR - https://www.scopus.com/pages/publications/85006812911#tab=citedBy
U2 - 10.1109/PIERS.2016.7734811
DO - 10.1109/PIERS.2016.7734811
M3 - Conference contribution
AN - SCOPUS:85006812911
T3 - 2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings
SP - 1843
EP - 1845
BT - 2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 Progress In Electromagnetics Research Symposium, PIERS 2016
Y2 - 8 August 2016 through 11 August 2016
ER -