Open AccessCompact and high isolated triangular split‐ring diplexer
Author(s) -
Xiao JianKang,
Li Yong,
Ma JianGuo
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.0523
Subject(s) - diplexer , resonator , microstrip , band pass filter , coupling (piping) , hexagonal crystal system , ring (chemistry) , physics , electrical engineering , optoelectronics , materials science , topology (electrical circuits) , electronic engineering , optics , engineering , chemistry , organic chemistry , metallurgy , crystallography
A compact microstrip diplexer using triangular split‐ring resonator bandpass filters with separated electric and magnetic coupling (SEMC) has been presented. The transmission zeros are attributed to the SEMC without requiring more resonators and can be controlled by the electric and magnetic couplings. The diplexer is fabricated, and the design has been demonstrated by measurement. The diplexer has a compact size of 0.264 λ 0 × 0.102 λ 0 , and a measured isolation of no less than 38 dB.