A 60-GHz-band planar dielectric waveguide filter for flip-chip modules

Author

Ito, Masaharu ; Maruhashi, Kenichi ; Ikuina, Kazuhiro ; Hashiguchi, Takeya ; Iwanaga, Shunichi ; Ohata, Keiichi

Author_Institution

Photonic & Wireless Devices Res. Labs., NEC Corp., Shiga, Japan

Volume

49

Issue

12

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

2431

Lastpage

2436

Abstract

A planar dielectric waveguide filter with coplanar waveguide (CPW) I/O ports suitable for flip-chip bonding is proposed and is demonstrated for 60-GHz-band applications. The filter is formed incorporating metallized through holes in an alumina substrate. In order to improve stopband rejection, short-circuited CPW resonators with a half-wavelength are added to waveguide-to-CPW transitions. A fabricated four-resonator filter exhibits an insertion loss of 3.2 dB with a 3-dB bandwidth of 3.0 GHz and rejection of 35 dB at 3-GHz lower separation from a center frequency of 59.5 GHz. The filter is mounted by using flip-chip bonding in a multilayer ceramic package with structures to suppress parasitically propagating electromagnetic waves. No degradation of the stopband rejection is observed from 50 to 80 GHz

Keywords

Chebyshev filters; band-pass filters; ceramic packaging; coplanar waveguide components; dielectric waveguides; flip-chip devices; millimetre wave filters; waveguide filters; waveguide transitions; 3.0 GHz; 3.2 dB; 59.5 GHz; 60 GHz; Chebyshev filter; alumina substrate; coplanar waveguide I/O ports; flip-chip bonding; flip-chip modules; four-resonator filter; insertion loss; metallized through holes; millimeter-wave filters; multilayer ceramic package; planar dielectric waveguide filter; quality factor; short-circuited CPW resonators; stopband rejection; waveguide-to-CPW transitions; Bandwidth; Bonding; Coplanar waveguides; Dielectric substrates; Electromagnetic waveguides; Insertion loss; Metallization; Planar waveguides; Resonator filters; Waveguide transitions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.971632

Filename

971632