TY - JOUR
T1 - Low-Loss Polytetrafluoroethylene Hexagonal Porous Fiber for Terahertz Pulse Transmission in the 6G Mobile Communication Window
AU - Lee, Yong Soo
AU - Choi, Hyucksu
AU - Kim, Byungjoo
AU - Kang, Chul
AU - Maeng, Inhee
AU - Oh, Seung Jae
AU - Kim, Soeun
AU - Oh, Kyunghwan
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2021/11/1
Y1 - 2021/11/1
N2 - Hexagonal porous optical fiber without a central defect is proposed and numerically analyzed with the finite element method (FEM) for transmitting terahertz (THz) electromagnetic wave pulse. In experiments, the transmission characteristics of polytetrafluoroethylene (PTFE) hexagonal porous optical fibers were measured using a THz time-domain spectroscopy (THz-TDS) system. To precisely estimate the effective material loss (EML), we measured the refractive index and absorption coefficient of PTFE in the THz range to use them in FEM analyses, and the EML of the porous fiber was estimated to be lower than that of a bulk rod as large as by a factor of 2 in the frequency range from 0.1 to 0.33 THz. In experiments, we measured the transmission characteristics of both the porous fibers and the bulk rod, to confirm a significant improvement in THz wave transmission nearly by an order of magnitude in the 6G telecommunication window, showing a better performance than theoretical estimations.
AB - Hexagonal porous optical fiber without a central defect is proposed and numerically analyzed with the finite element method (FEM) for transmitting terahertz (THz) electromagnetic wave pulse. In experiments, the transmission characteristics of polytetrafluoroethylene (PTFE) hexagonal porous optical fibers were measured using a THz time-domain spectroscopy (THz-TDS) system. To precisely estimate the effective material loss (EML), we measured the refractive index and absorption coefficient of PTFE in the THz range to use them in FEM analyses, and the EML of the porous fiber was estimated to be lower than that of a bulk rod as large as by a factor of 2 in the frequency range from 0.1 to 0.33 THz. In experiments, we measured the transmission characteristics of both the porous fibers and the bulk rod, to confirm a significant improvement in THz wave transmission nearly by an order of magnitude in the 6G telecommunication window, showing a better performance than theoretical estimations.
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U2 - 10.1109/TMTT.2021.3092761
DO - 10.1109/TMTT.2021.3092761
M3 - Article
AN - SCOPUS:85116864359
SN - 0018-9480
VL - 69
JO - IRE Transactions on Microwave Theory and Techniques
JF - IRE Transactions on Microwave Theory and Techniques
IS - 11
ER -