Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2005.11a
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- Pages.131-134
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- 2005
Improvement of Characteristics of DMB SIR-type Bandpass Filter Using LTCC
LTCC를 이용한 DMB용 SIR형 대역통과 필터의 특성 개선
- Kim, Kyoung-Min (Graduate school, Chosun University) ;
- Park, Sung-Kyo (Dept of Electronic Eng., Chosun University) ;
- Lim, Byoung-Hwan (Graduate school, Chosun University) ;
- Ko, Hyang-Guh-Ri (Graduate school, Chosun University) ;
- Park, Chong-Baek (Dept of Electronic Eng., Chosun University)
- 김경민 (조선대학교 대학원) ;
- 박성교 (조선대학교 전자정보공과대학 전자공학과) ;
- 임병환 (조선대학교 대학원) ;
- 고향그리 (조선대학교 대학원) ;
- 박종백 (조선대학교 전자정보공과대학 전자공학과)
- Published : 2005.11.26
Abstract
Recently, RF systems have rapidly grown with the extension of the mobile communication service The mobile service companies are providing the satellite broadcasting and common usage are expected. Coinciding with current trend, the development of improved satellite DMB (Digital Multimedia Broadcasting) tuner is required. To improve the receiving sensitivity under the poor communication circumstance, It is necessary to design the LNA (Low Noise Amplifier) with outstanding low noise characteristic and the BPF (Bandpass Filter) to transmit only desired signal without distortion and loss. Besides high reliability, the miniaturization and lightweight are required for design of mobile terminals. In this study, we designed and fabricated DMB SIR-type BPF which operates at 2642 MHz and is embedded in the substrate using LTCC. As a result, we obtained the passband insertion loss of 2.4 dB and the passband ripple of 0.08 dB. So this DMB SIR-type BPF is applicable to RF module of a satellite DMB tuner.
Keywords