Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Millimeter Wave Filtres using a high Q MMIC Transmission Line

높은 Q값을 가지는 MMIC 전송선을 이용한 밀리미터파 필터

  • Liamas-Garro, Ignacio (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Kim, Yong-Sung (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Baek, Chang-Wook (School of Electrical and Electronics Engineering, Chung-Ang University) ;
  • Kim, Yong-Kweon (School of Electrical Engineering and Computer Science, Seoul National University)
  • ;
  • 김용성 (서울대학교 전기컴퓨터공학부) ;
  • 백창욱 (중앙대학교 전자전기공학부) ;
  • 김용권 (서울대학교 전기컴퓨터공학부)
  • Published : 2005.07.18
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Abstract

In this paper we discuss the design and fabrication of two millimeter wave filters, in bandpass and bandstop topologies for wireless communications applications. The filters are made using a high Q MMIC transmission line, which consists of a 100 micrometers tall, surface micromachined, air filled inverted microstrip structure on a quartz substrate, made by using a JSR THB-151N negative photoresist sacrificial layer mold and electroplating technology. The filter topologies include a new, very compact, four pole, cross-coupled filter, that presents a single transmission zero at the lower side of the passband, which provides a very sharp out of passband rejection at this region.

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