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Compact LTCC dual‐band bandpass filter with high selectivity using the vertically S‐shaped short‐ended SIR
Author(s) -
Chen JianXin,
Ge Yong,
Tang Hui,
Zhou LiHeng,
Shi Jin,
Bao ZhiHua
Publication year - 2013
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.27539
Subject(s) - band pass filter , resonator , microwave , multi band device , ceramic , materials science , electrical engineering , optoelectronics , electrical impedance , coupling (piping) , transmission line , transmission (telecommunications) , electronic engineering , engineering , telecommunications , antenna (radio) , composite material , metallurgy
Abstract For the first time, a vertically S‐shaped short‐ended stepped‐impedance resonator (SIR) is proposed to design a compact low temperature co‐fired ceramic (LTCC) dual‐band bandpass filter (BPF).The proposed SIR as a transmission line resonator can be used in high‐frequency application, and the size of the SIR can be miniaturized greatly because it is vertically folded in LTCC. Three transmission zeros in the stopbands are achieved by using the electric and magnetic mixed coupling schemes. The demonstrated dual‐band BPF at 5.8/10 GHz is designed and fabricated. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1345–1348, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27539