Title :
Substrate Integrated Folded-Waveguide Filter with Asymmetrical Frequency Response
Author :
Alotaibi, Sultan K. ; Hong, Jia-Sheng
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Heriot-Watt Univ., Edinburgh
Abstract :
A new 2-pole bandpass filter design based on a substrate integrated folded-waveguide (SIFW) resonator structure is presented. The filter uses an advanced coupling scheme to achieve a desired asymmetric frequency response with an attenuation pole of finite frequency on the high side of the passband. A full-wave simulator has been employed for designing the filter. The proposed filter circuit design has been implemented. It has been found that the experimental result of constructed filter is in close agreement with simulation result. This filter also provides an improved selectivity characteristic with compact size compared with the conventional resonator filters.
Keywords :
band-pass filters; integrated circuit design; microwave filters; microwave integrated circuits; substrate integrated waveguides; 2-pole bandpass filter design; asymmetrical frequency response; filter circuit design; full-wave simulator; resonator filters; resonator structure; substrate integrated folded-waveguide filter; Band pass filters; Circuit simulation; Coupling circuits; Dielectric substrates; Electromagnetic waveguides; Frequency response; Microwave filters; Passband; Rectangular waveguides; Resonator filters;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751625
