Designing of double negative media based low pass microstrip filter using stepped impedance

Author

Gupta, Deepti ; Chaurasia, Kratika ; Rathor, Akansha ; Singhal, P.K.

Author_Institution

Hindustan Coll. of Sci. & Technol.(HCST), Mathura, India

fYear

2015

fDate

19-20 Feb. 2015

Firstpage

633

Lastpage

637

Abstract

This paper presents the use of double negative media for improving the response of microstrip low pass filter using FR4 as a substrate of dielectric constant of 4.4. Initially, this paper presents the discussion of designing a simple low pass microstrip filter using stepped impedance with cut off frequency 2.1GHz and the results are simulated by using CST software. The results did not match with the ideal characteristics. Next, 4 SRR are designed on the positive plate of this filter then the response was close to the ideal one. Further, with 4 SRR a rectangular shaped CSRR is implemented on the filter. The results were improved drastically with the high attenuation in the stop band, improved quality factor, high roll off rate low insertion loss and cut off frequency of 1.99GHz.

Keywords

Q-factor; UHF filters; band-stop filters; electronic engineering computing; losses; low-pass filters; metamaterials; microstrip filters; permittivity; CSRR; CST software; FR4; SRR; cut off frequency; dielectric constant; double negative media design; frequency 1.99 GHz; frequency 2.1 GHz; ideal characteristics; insertion loss; low-pass microstrip filter; positive plate; quality factor improvement; response improvement; stepped impedance; stop band attenuation; Complementary split ring resonator; Double negative media; Microstrip; Split ring resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Integrated Networks (SPIN), 2015 2nd International Conference on

Conference_Location

Noida

Print_ISBN

978-1-4799-5990-7

Type

conf

DOI

10.1109/SPIN.2015.7095277

Filename

7095277