Title :
A dual-band bandpass filter with substrate integrated waveguide-to-folded defected ground structure split ring resonator unit
Author :
Yuhao Lu;Mingkang Li;Chang Chen;Lingyun Zhou
Author_Institution :
Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences University of Science and Technology of China, Huangshan Road, Hefei, Anhui, China
Abstract :
A unit based on substrate integrated waveguide (SIW) cavity with folded defected ground structure (FDGS) split-ring resonator (SRR) etched on is introduced. The coupling between the SIW cavity and FDGS leads to two resonant frequencies and one transmission zero. By adjusting the size and the position of the FDGS SRR, both resonant frequencies and transmission zero can be controlled. The flexibility of the unit is fully used to design a dual-band bandpass filter with compact size by simply cascading two units. The measured S-parameters agree well with the simulated ones.
Keywords :
"Band-pass filters","Filtering theory","Cavity resonators","Resonator filters","Couplings","Resonant frequency","Substrates"
Conference_Titel :
Microwave Conference (APMC), 2015 Asia-Pacific
Print_ISBN :
978-1-4799-8765-8
DOI :
10.1109/APMC.2015.7413371
