Design of dual-band bandpass SIW filter with DGS

Author

Wang, Zhu-Dan ; Wei, Feng ; Zhang, Li ; Shi, Xiao-Wei

Author_Institution

Nat. Key Lab. of Antennas & Microwave Technol, Xidian Univ., Xi´´an, China

Volume

2

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

3

Abstract

The proposed filter is implemented using substrate integrated waveguide (SIW) technology featuring compact size, low cost, and high power-capacity. The stopband improvement is achieved by using defected ground structure (DGS) which is etched on the ground plane of the SIW cavity. Based on the concept of DGS, a new class of SIW double bandpass filters are designed, fabricated, and measured around 4.87 GHz and 5.61 GHz, respectively. The proposed filter, fabricated using standard printed circuit board technology, has the advantages of compact size, good S-parameters characteristics and low cost. Simulated and measured results are presented and discussed to show promising performances of the proposed filters.

Keywords

S-parameters; band-pass filters; defected ground structures; etching; printed circuits; substrate integrated waveguides; waveguide filters; DGS; S-parameters; SIW cavity; compact size; defected ground structure; dual-band bandpass SIW filter; frequency 4.87 GHz to 5.61 GHz; ground plane; power capacity; printed circuit board technology; substrate integrated waveguides; Bandpass filter; Defected ground structure (DGS); S-parameters; substrate integrated waveguide (SIW);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230043

Filename

6230043