Title :
Tunable Substrate-Integrated Waveguide (SIW) Dual-Mode Square Cavity Filter with Metal Cylinders
Author :
Wang, Da-Peng ; Wen-quan Che ; Russer, Peter
Author_Institution :
Dept. of Electr. Eng., Nanjing Univ. of Sci. & Technol., Nanjing
Abstract :
One narrow-band substrate-integrated waveguide (SIW) dual-mode square cavity bandpass filter is proposed. Two inductive perturbation metal cylinders are introduced into the cavity to tune the resonant frequencies, bandwidth and out-of-band rejection. One prototype was fabricated and measured, good agreement between the measured and simulated results are observed. The derivation of the resonant frequency is only 0.3%, the bandwidth is about 3.5% at -15 dB return loss.
Keywords :
band-pass filters; cavity resonator filters; perturbation theory; waveguide filters; bandwidth; dual-mode square cavity bandpass filter; inductive perturbation metal cylinders; loss -15 dB; out-of-band rejection; resonant frequencies; return loss; tunable substrate-integrated waveguide; Band pass filters; Bandwidth; Conferences; Engine cylinders; Fasteners; Microwave Theory and Techniques Society; Resonance; Resonant frequency; Tuning; Virtual prototyping; SIW square cavity; dual-mode filter; perturbation; tuning metallized posts;
Conference_Titel :
Art of Miniaturizing RF and Microwave Passive Components, 2008. IMWS 2008. IEEE MTT-S International Microwave Workshop Series on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-2876-2
Electronic_ISBN :
978-1-4244-2877-9
DOI :
10.1109/IMWS.2008.4782279
