Premium
Multimode wideband diplexer using open‐ and short‐ended stub‐loaded hairpin resonator
Author(s) -
Wu Bian,
Qiu Feng
Publication year - 2015
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.29026
Subject(s) - diplexer , wideband , multi mode optical fiber , resonator , stub (electronics) , microwave , physics , electronic engineering , optics , telecommunications , engineering , optical fiber
A fourth‐order multimode wideband diplexer with high selectivity and compact size is presented in this article. The open‐ or short‐ended stub‐loaded hairpin resonator (SLHR) is utilized to split one resonant mode to even‐mode and odd‐mode. A pair of SLHRs splits the two modes to four modes and also introduces two transmission zeros for each channel due to the mixed coupling. Using two kinds of SLHRs at the two filtering channel, a compact multimode wideband diplexer with center frequencies at 2.1 GHz/2.5 GHz and fractional bandwidths of 10.5%/8.5% are designed and fabricated. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1096–1099, 2015