Open AccessBasic RF Characteristics of Fishbone‐Type Transmission Line Employing Comb‐Type Ground Plane (FTLCGP) on PES Substrate for Use in Flexible Passive Circuits
Author(s) -
Yun Young,
Jeong JangHyeon,
Kim Hong Seung,
Jang Nakwon
Publication year - 2015
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.15.0114.0244
Subject(s) - capacitance , ground plane , transmission line , materials science , bandwidth (computing) , optoelectronics , substrate (aquarium) , transmission (telecommunications) , signal (programming language) , electronic engineering , electrical engineering , engineering , physics , telecommunications , computer science , electrode , programming language , oceanography , quantum mechanics , geology , antenna (radio)
In this work, a fishbone‐type transmission line employing a comb‐type ground plane (FTLCGP) was fabricated on polyethersulfone (PES) substrate, and its RF characteristics were thoroughly investigated. According to the results, it was found that the FTLCGP on PES showed periodic capacitance values much higher than other types of transmission lines due to a coupling capacitance between the signal line and ground, which resulted in a reduction of wavelength and line width. Using the theoretical analysis, we also extracted the bandwidth characteristic of the FTLCGP on PES. According to the result, the FTLCGP structure showed a cut‐off frequency of 280 GHz.