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

fYear

2009

fDate

7-10 Dec. 2009

Firstpage

1446

Lastpage

1449

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APMC.2009.5384489

Filename

5384489