Open AccessNew Impedance Matching Scheme for 60 GHz Band Electro‐Absorption Modulator Modules
Author(s) -
Choi KwangSeong,
Chung YongDuck,
Kang YoungShik,
Jun DongSuk,
Ahn ByoungTae,
Moon JongTae,
Kim Jeha
Publication year - 2006
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.06.0205.0049
Subject(s) - impedance matching , band pass filter , electronic engineering , microstrip , electrical impedance , filter (signal processing) , return loss , materials science , computer science , electrical engineering , engineering , antenna (radio)
This letter proposes a new impedance matching scheme of a traveling wave electro‐absorption modulator (TWEAM) module for a 60 GHz band radio‐over‐fiber (ROF) link. A microstrip bandpass filter (BPF) was used to achieve impedance matching at the 60 GHz band, and termination resistance was carefully designed to obtain an input impedance close to 50 Ω. Also, a bias circuit for the device was designed in the module. The measured return loss and frequency response show that the modulator module observes the characteristics of a filter without the need of a further tuning process.