A LTCC cross-coupled bandpass filter for millimeter-wave integrated module

Author

Li, Yinqiao ; Ji, Jianhua ; Huan, Sha ; Fei, Yuanchun ; Zhou, Jianming

Author_Institution

Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China

fYear

2010

fDate

8-11 May 2010

Firstpage

761

Lastpage

764

Abstract

This paper presents design and realization of a Ka-band stripline bandpass filter. A single pair of transmission zeros at lower and upper stopbands are achieved by introducing cross coupling. The whole filter is designed as a three-dimension structure in LTCC multi-layers. EM simulation is employed to estimate the performance of the filter and do optimization. The dimension of the fabricated LTCC filter is 8.3mm × 4.4mm × 1.1mm. The measurement shows a bandwidth of 1.5 GHz with the center frequency of 35.65 GHz. The measured insertion loss is smaller than 6.5 dB and return loss is below -6.4 dB including the RF connectors in the passband. The proposed filter is suitable for the applications in millimeter-wave integrated module.

Keywords

band-pass filters; millimetre wave integrated circuits; strip line filters; EM simulation; Ka-band stripline bandpass filter; RF connectors; low temperature co-fired ceramic cross-coupled bandpass filter; millimeter-wave integrated module; transmission zeros; Band pass filters; Bandwidth; Connectors; Couplings; Filtering theory; Frequency measurement; Insertion loss; Loss measurement; Radio frequency; Stripline;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5525059

Filename

5525059