Analysis of vertically installed planar (VIP) combline bandpass filters

Author

Awai, Ikuo ; Zhao, Chuandong

Author_Institution

Dept. of Electr. & Electron. Eng., Yamaguchi Univ., Japan

fYear

1997

fDate

2-5 Dec 1997

Firstpage

801

Abstract

A vertically installed planar (VIP) structure is adopted to create a two-stage combline type bandpass filter. It is basically a pair of 3-dimensional microstrip line resonators coupled very tightly. Addition of a fin capacitor and through-hole inductance at each end of the resonator controls the frequency of attenuation poles as well as the bandwidth. The equivalent circuit analysis gives an approximate but clear insight of the transmission characteristics, being supplemented by the rigorous FDTD analysis

Keywords

band-pass filters; equivalent circuits; finite difference time-domain analysis; microstrip filters; microwave filters; passive filters; resonator filters; 3D microstrip line resonators; FDTD analysis; attenuation poles; coupled resonators; equivalent circuit analysis; fin capacitor; planar combline bandpass filters; through-hole inductance; transmission characteristics; two-stage bandpass filter; vertically installed planar filters; Attenuation; Band pass filters; Bandwidth; Capacitors; Circuit analysis; Coupling circuits; Equivalent circuits; Inductance; Microstrip resonators; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific

Print_ISBN

962-442-117-X

Type

conf

DOI

10.1109/APMC.1997.654663

Filename

654663