Design of a Novel Harmonic-Suppressed Microstrip Low-Pass Filter

Author

Park, Jongkuk ; Kim, Jeong-Phill ; Nam, Sangwook

Author_Institution

Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Kyunggi

Volume

17

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

424

Lastpage

426

Abstract

A novel harmonic-suppressed microstrip low-pass filter (LPF) is proposed which is composed of defected ground structures and stepped-impedance shunt stubs as series L and shunt C components in the pass-band. Due to the attenuation poles of two kinds of resonators, it is found that harmonic responses are not only suppressed effectively, but the rejection in the stop-band is also deep and wide. Besides, the proposed LPF can be compactly implemented since both kinds of resonators have slow-wave characteristics

Keywords

harmonics suppression; low-pass filters; microstrip filters; poles and zeros; attenuation poles; defected ground structures; harmonic-suppressed microstrip low-pass filter; slow-wave characteristics; stepped-impedance shunt stubs; Attenuation; Cutoff frequency; Equivalent circuits; Low pass filters; Microstrip components; Microstrip filters; Periodic structures; Power harmonic filters; Prototypes; Resonator filters; Defected ground structure (DGS); harmonic-suppression; low-pass filter (LPF); step-impedance shunt stub (SISS);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2007.897789

Filename

4220708