Title :
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
Abstract :
This paper proposes a microstrip ultra-wideband (UWB) filter using quarter wavelength long short circuited stubs. The designed filter is based on 5th 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);
Conference_Titel :
Signal Processing, Computing and Control (ISPCC), 2013 IEEE International Conference on
Conference_Location :
Solan
Print_ISBN :
978-1-4673-6188-0
DOI :
10.1109/ISPCC.2013.6663423
