Design of stub based ultra wideband filter with low insertion loss

Author

Kalyan, Robin ; Sharma, Shantanu ; Tripathi, C.C.

Author_Institution

Dept. of Electron. & Commun. Eng., Kurukshetra Univ., Kurukshetra, India

fYear

2013

fDate

26-28 Sept. 2013

Firstpage

1

Lastpage

4

Abstract

This paper proposes a microstrip ultra-wideband (UWB) filter using quarter wavelength long short circuited stubs. The designed filter is based on 5^th order Chebyshev lowpass prototype with 0.1dB Passband ripple. The structure is designed on low cost Arlon substrate with relative dielectric constant of 2.6 and a thickness of 1.27 mm. The filter provides a fractional bandwidth (FBW) of 106% (3.13 GHz -10.4 GHz) and excellent scattering parameters with insertion loss below 0.1dB and return loss better than 16.5dB. As the phase response is ripple free over the entire passband, which gives a flat group delay of 0.3nsec, thus, filter is well suited for UWB applications.

Keywords

Chebyshev filters; integrated circuit design; low-pass filters; microstrip filters; permittivity; ultra wideband technology; 5th order Chebyshev lowpass prototype; Arlon substrate; dielectric constant; fractional bandwidth; frequency 3.13 GHz to 10.4 GHz; insertion loss; microstrip ultra-wideband filter; quarter wavelength long short circuited stubs; return loss; size 1.27 mm; time 0.3 ns; Band-pass filters; Filtering theory; Insertion loss; Microstrip filters; Microwave filters; Optical filters; Resonator filters; Federal Communications Commission (FCC); Fractional Bandwidth(FBW); Group Delay; Insertion Loss; Return Loss; Ultra Wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Computing and Control (ISPCC), 2013 IEEE International Conference on

Conference_Location

Solan

Print_ISBN

978-1-4673-6188-0

Type

conf

DOI

10.1109/ISPCC.2013.6663423

Filename

6663423