Design of UWB filter based on multi short circuited stubs

Author

Gupta, S.C. ; Kumar, Manoj ; Meena, R.S.

Author_Institution

Deptt. of Electron. & Commun. Eng., Rajasthan Tech. Univ., Kota, India

fYear

2014

fDate

6-8 March 2014

Firstpage

1

Lastpage

3

Abstract

A novel ultra-wideband (UWB) band pass filter (BPF) with a fractional bandwidth (FBW) of about 109% is proposed using microstrip line structure. The proposed UWB filter consists five short circuited stubs of quarter wave length are placed at λ₀/4 distance apart each other in feed line of 50 Ω impedance which exhibit a very wide bandwidth from 3.1 GHz to 10.67 GHz and high rejection in out of the UWB band. The proposed filter structure is simulated using GML 1000 substrate of dielectric constant 3.2 and height 0.762mm on Electromagnetic circuit simulator for UWB band of fractional bandwidth 109% at center frequency 6.85GHz. The simulated frequency response shows about zero dB insertion loss (S₂₁) and return loss (S₁₁) less than -20dB. Simulated frequency response is very close to standard UWB spectrum.

Keywords

band-pass filters; microstrip lines; ultra wideband communication; FBW; UWB filter design; electromagnetic circuit simulator; fractional bandwidth; frequency 6.85 GHz; microstrip line structure; multishort circuited stubs; simulated frequency response; ultrawideband band pass filter; Band-pass filters; Educational institutions; Microstrip filters; Microwave circuits; Microwave communication; Microwave filters; Resonator filters; Band pass filter (BPF); Defectedground structure (DGS); Fractional Bandwidth (FBW); Parallel coupled microstripline (PCML); Ultra wide band (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering and Computational Sciences (RAECS), 2014 Recent Advances in

Conference_Location

Chandigarh

Print_ISBN

978-1-4799-2290-1

Type

conf

DOI

10.1109/RAECS.2014.6799606

Filename

6799606