Title :
A miniaturized 2.4 GHz band multi-layer bandpass filter using capacitively loaded /spl lambda//4 slow-wave resonator
Author :
Hee-Seok Song ; Young-Shin Lee
Author_Institution :
Korea Electron. Technol. Inst., Kyunggi-Do, South Korea
Abstract :
In this paper, we proposed new multi-layer /spl lambda//4 slow-wave resonator, which is composed of a strip-line and loading capacitance. Due to the slow-wave effect of the proposed resonator, it is possible to design and fabricate a compact bandpass filter with a wide upper stopband. Using LTCC multi-layer technology, we designed and fabricated a 2.4 GHz ISM-band bandpass filter with a wide upper stopband and a size of 2.0 mm/spl times/1.2mm/spl times/0.8mm.
Keywords :
Chebyshev filters; UHF filters; band-pass filters; ceramic packaging; circuit simulation; slow wave structures; strip line resonators; 0.8 mm; 1.2 mm; 2.0 mm; 2.4 GHz; Chebyshev two-pole bandpass filters; ISM-band bandpass filters; LTCC multi-layer technology; ZnO-Nb/sub 2/O/sub 5/-TiO/sub 2/; capacitively loaded quarter-wave slow-wave resonators; circuit simulation; filter wide upper stopband; low temperature cofired ceramics; multi-layer bandpass filters; resonator loading capacitance; slow-wave effects; strip-line resonators; Band pass filters; Capacitance; Ceramics; Circuit simulation; Dielectric substrates; Equivalent circuits; Passband; Resonance; Resonant frequency; Resonator filters;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210989
