Fabrication of a band-reject filter using dielectric-supported air-gapped microstriplines

Tae Jong Baek, Baek Seok Ko, Dong Hoon Shin, Sung Chan Kim, Byoung Ok Lim, Soon Koo Kim, Hyun Chang Park, Jin Koo Rhee

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, we develop a new type of band-reject filter, which provides the practical usefulness of dielectric-supported air-gapped microstriplines. The filter is composed of a signal line of 10-μm height in order to reduce the substrate dielectric loss and a post of size 20 × 20 μm 2 that supports the signal line. The fabricated band-reject filter has a measured reject band of 46.6 dB at 45 GHz and a pass band of 1.7 dB at 60 GHz.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume44
Issue number1
DOIs
StatePublished - 5 Jan 2005

Keywords

  • Air-bridge
  • Band reject filter
  • DAML
  • Microstrip line
  • RF MEMS
  • Surface micromachining

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