Title :
A dual-notched band bandpass filter using embedded fold-slots
Author :
Meeloon, Mongkol ; Rattarasarn, Matinee ; Chaimool, Sarawuth ; Akkaraekthalin, Prayoot
Author_Institution :
Dept. of Special Investig. (DSI), Bur. of Technol. & Inf. Syst. Center, Bangkok, Thailand
Abstract :
An ultra-wideband bandpass filter with dual-notched band is proposed using slotted step-impedance resonator (SSIR) and embedded fold-slot feed structure. The proposed filter has two notches in the passband, resulting from the embedded fold-slot feed. The center frequencies and bandwidths of the notched bands can be controlled by adjusting dimensions of the embedded fold-slot. The wider upper stopbands caused by slot resonator characteristics have been also obtained. A good agreement between the simulated and measured results is observed. The filter has dual-notched band with center frequencies of 5.6 GHz and 9.3 GHz, respectively. High stopband performances with better than 15 dB for a frequency range up to 18 GHz have also been obtained.
Keywords :
band-pass filters; microwave filters; notch filters; resonator filters; SSIR; dual-notched band bandpass filter; embedded fold-slot feed structure; frequency 5.6 GHz; frequency 9.3 GHz; slot resonator characteristics; slotted step-impedance resonator; ultrawideband bandpass filter; Band pass filters; Feeds; Microwave filters; Resonant frequency; Resonator filters; Ultra wideband technology; Wireless communication;
Conference_Titel :
Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-0666-9
DOI :
10.1109/APCAP.2012.6333271
