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논문 기본 정보

자료유형
학술저널
저자정보
Kun-An Kwon (Sogang University) Hyun-Keun Kim (Sogang University) Sang-Won Yun (Sogang University)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.16 No.1
발행연도
2016.1
수록면
19 - 23 (5page)

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초록· 키워드

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This paper presents a novel design for dual-band bandpass filters. The proposed filters are applicable to the carrier aggregation of the TV white space (TVWS) band and long-term evolution (LTE) band for cognitive radio applications. The lower passband is the TVWS band (470–698 MHz) whose fractional bandwidth is 40 %, while the higher passband is the LTE band (824–894 MHz) with 8 % fractional bandwidth. Since the two passbands are located very close to each other, a transmission zero is inserted to enhance the rejection level between the two passbands. The TVWS band filter is designed using magnetic coupling to obtain a wide bandwidth, and the LTE band filter is designed using dielectric resonators to achieve good insertion loss characteristics. In addition, in the proposed design, a transmission zero is placed with cross-coupling. The proposed dual-band bandpass filter is designed as a two-port filter (one input/one output) as well as a three-port filter (one common input/two outputs). The measured performances show good agreement with the simulated performances.

목차

Abstract
I. INTRODUCTION
II. DESIGN PROCEDURES
III. MEASURED RESULTS
Ⅳ. CONCLUSIONS
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