Title :
A broadband bandpass rectangular waveguide filter based on metamaterials
Author :
Yan Liu ; Huifeng Ma
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
This paper presents a brand-new method and process of building a broadband bandpass filter in a flat rectangular waveguide with a passband between 6-12GHz (66.7% in percentage) using a 3-layer periodic SRR structure. Due to the unsatisfied reflection in the passband, another scale of SRRs have been utilized as the lambda/4 impedance matching layer between the air and the metamaterial filter layer in the waveguide in order to decrease the reflection coefficient which is lower than -10dB after implement.
Keywords :
band-pass filters; microwave filters; microwave metamaterials; rectangular waveguides; waveguide filters; 3-layer periodic SRR structure; brand-new method; broadband bandpass rectangular waveguide filter; flat rectangular waveguide; frequency 6 GHz to 12 GHz; lambda-4 impedance matching; metamaterial filter layer; Band pass filters; Impedance; Metamaterials; Passband; Rectangular waveguides; Resonator filters; Flat Waveguide; Impedance Matching Lay; Metamaterial; Periodic Structure; Resonator (SRR); Split Ring; Waveguide Filter; er (IML);
Conference_Titel :
Metamaterials (Meta), 2012 International Workshop on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-2807-4
DOI :
10.1109/META.2012.6464958
