Synthesis of LTCC multi-band bandpass filter using reflection and transmission zeros

Author

Yi-Chieh Lin ; Hui-Hsiag Huang ; Tzyy-Sheng Horng

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

4

Abstract

In this paper, a multi-band bandpass filter (BPF) based on a novel architecture and design method is presented. Very uniquely, its multi-band frequency response is synthesized by giving the transmission- and reflection-zero frequencies. To verify the proposed method, a miniaturized dual-band BPF is implemented using low-temperature co-fired ceramic (LTCC) technology. The size of filter is 2.0 mm × 1.25 mm × 1.0 mm with the two passbands at 2.4-2.5 GHz and 5.15-5.35 GHz for WLAN applications. Comparison of the filter S-parameters obtained by the synthesized prototype circuit, post-layout simulation and measurement shows good correlation.

Keywords

S-parameters; band-pass filters; ceramic packaging; frequency response; microwave filters; LTCC technology; WLAN applications; filter S-parameters; frequency 2.4 GHz to 2.5 GHz; frequency 5.15 GHz to 5.35 GHz; low-temperature co-fired ceramic technology; miniaturized dual-band BPF; multi-band BPF; multi-band bandpass filter; multi-band frequency response; post-layout simulation; reflection zeros; size 1 mm; size 1.25 mm; size 2 mm; transmission zeros; Band-pass filters; Dual band; Filtering theory; LTCC bandpass filters; Multi-band bandpass filters; reflection zeros; transmission zeros;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848448

Filename

6848448