상세정보
학술지
An Ultracompact CRLH-TL Bandpass Filter for VHF Applications
- 발행일
- 201603
- 출처
- Microwave and Optical Technology Letters, v.58 no.3, pp.694-697
- ISSN
- 0895-2477
- 출판사
- John Wiley & Sons
- 협약과제
- 15MB2600, 파동에너지 제어 ICT 극한물성시스템 융합기술, 홍성훈
- 초록
- This article proposes a new design approach to an ultracompact composite right-/left-handed transmission line (CRLH-TL) bandpass filter with good passband and very broad stopband performances. In order to reduce the size, a series connection of the interdigital capacitor and shorted spiral inductor for realizing CRLH-TL is adopted and optimized to create the target Terrestrial-Digital Multimedia Broadcasting (T-DMB, 174-216 MHz) bandpass filtering. T-DMB was developed in South Korea. The results of a Bloch impedance analysis suggest that the proposed approach generates good impedance matching. The proposed filter has overall dimensions of {\\lambda}g/19 by {\\lambda}g/34 in terms of a center frequency of 180 MHz, a 3 dB fractional bandwidth of over 28%, an insertion loss of much lower than 2 dB, and a good return loss performance in the predicted and measured results.
- KSP 제안 키워드
- 6 MHz, Band-pass filter(BPF), Band-pass filtering, Center frequency, Composite right/left handed transmission line(CRLH TL), Fractional Bandwidth(FBW), Interdigital capacitors, Loss performance, Return loss(RL), Series connection, South Korea