Title :
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
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;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848448
