An UWB bandpass filter with notched band using embedded fold-slot feed and three-slotted resonator

Author

Meeloon, Mongkol ; Jeeracheeweekul, Varapom ; Mahatthanathawee, Surat ; Ngamkhum, Jukkrit ; Chomputawat, Anuthep ; Chomputawat, Sirikanya ; Rattarasarn, M.

Author_Institution

Dept. of Special Investig. (DSI), Bur. of Technol. & Inf. Syst. Center, Bangkok, Thailand

fYear

2011

fDate

7-9 Dec. 2011

Firstpage

1

Lastpage

4

Abstract

In this paper, an ultra-wideband bandpass filter based on slotted linear tapered-line resonator (SLTR) with embedded fold-slot feed structure for notched band is presented. The embedded fold-slot feed at the end of resonator will be comprehensively described. The proposed filter has narrow notch in the passband, resulting from the embedded fold-slot feed. The center frequencies and bandwidths of the notched band can be easily adjusted by tuning the length and width of the embedded fold-slot parameters. The wider upper stopbands caused by resonator characteristics have been also obtained. The simulated and experimental results show narrow notched bands around 270 MHz. High stopband performances with better than 10 dB for a frequency range up to 18 GHz have also been obtained.

Keywords

band-pass filters; microwave filters; resonators; ultra wideband technology; UWB bandpass filter; embedded fold-slot feed; embedded fold-slot feed structure; embedded fold-slot parameter; narrow notched band; notched band; resonator characteristics; stopband performance; tapered-line resonator; three-slotted resonator; ultrawideband bandpass filter; Ultra wideband technology; UWB bandpass filter; embedded fold-slot; slotted linear tapered-line resonators (SLTR);

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communications Systems (ISPACS), 2011 International Symposium on

Conference_Location

Chiang Mai

Print_ISBN

978-1-4577-2165-6

Type

conf

DOI

10.1109/ISPACS.2011.6146166

Filename

6146166