Open AccessUWB bandpass SSL filter with an adjustable notched band and four transmission zeros
Author(s) -
Xu Z.
Publication year - 2021
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/ell2.12306
Subject(s) - band pass filter , stub (electronics) , stripline , electronic engineering , out of band management , transmission (telecommunications) , wi fi , passband , filter (signal processing) , interference (communication) , wireless , materials science , physics , computer science , acoustics , electrical engineering , optoelectronics , engineering , telecommunications , wireless network , computer network , channel (broadcasting) , network architecture , network management station
UWB suspended stripline (SSL) bandpass filter with an adjustable notched band and four transmission zeros (Tzs) is proposed here. To prevent interference signals from the wireless local‐area network (WLAN) entering UWB system, a short‐stub resonant network is introduced to this UWB filter. In addition, utilizing different resonant modes of the two short–stubs, four Tzs are generated to improve the skirt selectivity. Both the centre frequency of the notched band and the positions of Tzs can be controlled by tuning the structural parameters. The UWB SSL bandpass filter is designed, fabricated and tested. The measured results are in good agreement with the simulated results.