A Ka-band narrow bandpass filter using LTCC technology

Author

Choi, B.G. ; Stubbs, M.G. ; Park, C.S.

Author_Institution

Sch. of Eng., Inf. & Commun. Univ., Daejeon, South Korea

Volume

13

Issue

9

fYear

2003

Firstpage

388

Lastpage

389

Abstract

A Ka-band low-temperature co-fired ceramic (LTCC) narrow bandpass filter (BPF) is presented first. This BPF shows a very narrow 3 dB fractional bandwidth of 4.5% centered at 28.7 GHz. The advantages of multilayered LTCC technology such as high integration and vertical stacking capabilities were employed to design a three-dimensional interdigital end-coupled embedded microstrip narrow BPF. The difficulties in controlling the precise distance between two adjacent resonators in LTCC end-coupled BPF were overcome by locating the resonators on different layers. The measured insertion loss is 3 dB at 28.7 GHz.

Keywords

band-pass filters; ceramics; dielectric resonator filters; microstrip filters; microwave filters; 28.7 GHz; 3 dB; 3 dB fractional bandwidth; Ka-band narrow bandpass filter; LTCC technology; high integration; insertion loss; low-temperature co-fired ceramic technology; multilayered LTCC technology; narrow bandpass filter; resonator distance control; three-dimensional interdigital end-coupled embedded microstrip narrow BPF; vertical stacking capabilities; Band pass filters; Bandwidth; Capacitance; Ceramics; Dielectric losses; Dielectric substrates; Insertion loss; Microwave technology; Millimeter wave technology; Resonator filters;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2003.817139

Filename

1232555