A novel miniaturized bandstop filter using defected ground on system in package (SiP)

Author

Tsui-Wei Weng ; Tzong-Lin Wu

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2012

fDate

21-24 Oct. 2012

Firstpage

296

Lastpage

298

Abstract

A novel wide stopband and compact bandstop filter (BSF) is proposed and realized based on defected ground structure (DGS) and meandered signal line on SiP. An equivalent circuit model is built to characterize the filter behaviors. At the same time, a condition for transmission zeros is derived. It can be observed that the equivalent circuit model reasonably agrees with the full-wave simulation and measurement results. Also, it is found that the proposed filter has high rejection over 25 dB in its stopband. The filter has a compact size of 0.21 λ_g × 0.19 λ_g, where λ_g is the wavelength of the center frequency of the stopband, and its -10 dB fractional bandwidth (FBW) is up to 90%.

Keywords

band-stop filters; defected ground structures; equivalent circuits; system-in-package; compact bandstop filter; defected ground structure; equivalent circuit model; fractional bandwidth; full-wave simulation; miniaturized bandstop filter; system in package; wide stopband filter; Bridge circuits; Equivalent circuits; Filtering theory; Inductance; Integrated circuit modeling; Microwave filters; Resonator filters; Bandstop filter (BSF); System in Package(SiP); defected ground structure (DGS);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Performance of Electronic Packaging and Systems (EPEPS), 2012 IEEE 21st Conference on

Conference_Location

Tempe, AZ

Print_ISBN

978-1-4673-2539-4

Electronic_ISBN

978-1-4673-2537-0

Type

conf

DOI

10.1109/EPEPS.2012.6457900

Filename

6457900