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A compact UWB bandpass filter with WLAN rejection using a slot ring resonator
Author(s) -
Shen Ming,
Tong Tian,
Jensen Ole K.,
Mikkelsen Jan H.,
Larsen Torben
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25381
Subject(s) - passband , resonator , band pass filter , microwave , wi fi , wireless , split ring resonator , electronic engineering , ring (chemistry) , filter (signal processing) , wireless lan , ultra wideband , electrical engineering , fabrication , engineering , acoustics , physics , materials science , telecommunications , wireless network , medicine , chemistry , alternative medicine , organic chemistry , pathology
This article presents a novel ultra‐wideband bandpass filter with controllable notched bands, compact size, and relaxed fabrication requirements.Its implementation is based on a rectangular slot ring resonator with an embedded S‐shaped slotline. The behavior of the rectangular slot ring resonator is characterized and subsequently adopted to build the wide passband. The notched band necessary for rejecting wireless local‐area network (WLAN) signals is implemented by the S‐shaped slotline. A prototype filter is implemented based on the proposed structure and good agreement is found between simulations and measurements. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1980–1984, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25381