Compact and high‐selectivity microstrip bandpass filter using two‐stage twist‐modified asymmetric split‐ring resonators

2015 ◽  
Vol 51 (8) ◽  
pp. 635-637 ◽  
Author(s):  
Jian Li ◽  
Yongjun Huang ◽  
Guangjun Wen ◽  
Xiaolin Xue ◽  
Jiaming Song
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Ring Resonators ◽  
Two Stage ◽  
Split Ring ◽  
Split Ring Resonators

scholarly journals A Compact Wideband SIW Bandpass Filter with Wide Stopband and High Selectivity

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 440 ◽  
Author(s):  
Huang ◽  
Yuan
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Cutoff Frequency ◽  
Ring Resonators ◽  
Fractional Bandwidth ◽  
Split Ring ◽  
Electromagnetic Band Gap ◽  
Compact Size ◽  
Novel Method ◽  
Good Agreement

A novel method to design a wideband substrate integrated waveguide (SIW) bandpass filter (BPF) with compact size, wide stopband and high selectivity is presented. In this method some unique electromagnetic band-gap (EBG) cells are periodically etched on the top layer of SIW to realize a wide passband propagating below the equivalent waveguide cutoff frequency. By changing the configuration of EBG cells, undesired harmonics in upper stopband can be suppressed and a wideband BPF with wide stopband can be obtained. By symmetrically loading two complementary split ring resonators (CSRRs) on the tapered gradient lines of the input/output ports, a transmission zero near the passband can be introduced, and it makes the frequency selectivity of upper sideband improve significantly. As a verification, a wideband SIW BPF with a 3.02 GHz absolute bandwidth (ABW) and a 64.7% fractional bandwidth (FBW) centered at 4.67 GHz is designed, simulated, manufactured, and measured. The results of the experiment and simulation are in good agreement.

Bandpass filter design based on vertical split‐ring resonators

2017 ◽  
Vol 53 (21) ◽  
pp. 1412-1414 ◽  
Author(s):  
S. Oh ◽  
J. Choi ◽  
B. Shin ◽  
W.‐S. Yoon ◽  
J. Jeong ◽  
...  
Keyword(s):  
Bandpass Filter ◽  
Filter Design ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators

Compact bandpass filter based on SIW loaded by open complementary split-ring resonators

2016 ◽  
Vol 26 (8) ◽  
pp. 674-682 ◽  
Author(s):  
Mostafa Danaeian ◽  
Kambiz Afrooz ◽  
Ahmad Hakimi ◽  
Ali-Reza Moznebi
Keyword(s):  
Bandpass Filter ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators
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