A Novel Design of Two Loosely Coupled Bandpass Filters Based on Hilbert-zz Resonator with Higher Harmonic Suppression

Author

Mezaal, Y.S. ; Eyyuboglu, H.T. ; Ali, J.K.

Author_Institution

Dept. of Electron. & Commun. Eng., Cankaya Univ., Ankara, Turkey

fYear

2013

fDate

6-7 April 2013

Firstpage

343

Lastpage

347

Abstract

New characteristics of fractal design scheme has been introduced to generate compact two poles capacitively coupled micro strip band pass filter by using additional coupling stubs for different wireless applications. The presented fractal scheme is based on specific type of Hilbert space-filling curve which is called Hilbert-zz fractal geometry. The performance of generated band pass filter structure has been analyzed using Sonnet software package with a relative dielectric constant of 9 and a substrate thickness of 1.27 mm. Results show that these filters possess good transmission and return loss characteristics, besides higher harmonics suppressions, meeting the specifications of most of wireless communication systems.

Keywords

Hilbert spaces; band-pass filters; harmonics suppression; microstrip filters; microstrip resonators; permittivity; radio equipment; substrates; Hilbert space-filling curve; Hilbert-zz resonator; Sonnet software package; compact two poles capacitively coupled microstrip bandpass filter; coupling stub; dielectric constant; fractal design scheme; harmonic suppression; loosely coupled bandpass filter; return loss characteristics; substrate thickness; transmission characteristics; wireless communication system; Band-pass filters; Fractals; Microstrip filters; Microwave filters; Resonant frequency; Resonator filters; Superconducting filters; Hilbert-zz fractal curve; Microstrip bandpass filter (BPF); filter miniaturization; narrow-band bandpass filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computing and Communication Technologies (ACCT), 2013 Third International Conference on

Conference_Location

Rohtak

ISSN

2327-0632

Print_ISBN

978-1-4673-5965-8

Type

conf

DOI

10.1109/ACCT.2013.54

Filename

6524329