Title :
A broadband bandpass filter with a notch-band using step-impedance resonator and embedded slots
Author :
Meeloon, Mongkol ; Chaimool, Sarawuth ; Akkaraekthalin, Prayoot
Author_Institution :
King Mongkut´´s Univ. of Technol. North Bangkok, Bangkok, Thailand
Abstract :
This paper proposes a new broadband microstrip bandpass filter based on a step-impedance resonator (SIR) and embedded slot structure for a notch-band and improved upper stopband performances. A comprehensive treatment of a slotted resonator with both ends of interdigital coupled lines and an embedded slot feed is described. The proposed filter has a notch-band and a wider upper stopband, resulting from the slotted feed line and resonator characteristics. The simulated and experimental results show a narrow notch-band and superior stopband performances of better than 10 dB for a frequency range up to 25 GHz.
Keywords :
band-pass filters; microstrip filters; resonator filters; broadband microstrip bandpass filter; embedded slot feed; embedded slot structure; notch-band; slotted resonator; step-impedance resonator; stopband performance; Band pass filters; Bandwidth; Conductors; Current distribution; Electromagnetic coupling; Feeds; Frequency; Passband; Resonator filters; Strips; broadband bandpass filter; embedded slots; interdigital coupled line; notch-band; step-impedance resonator;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5384489
