Transition of 94-GHz coplanar waveguide to rectangular waveguide on flip-chip bonding compatible substrate

Sung Woon Moon, Sang Jin Lee, Min Han, Jin Koo Rhee, Sam Dong Kim

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We demonstrate a 94-GHz coplanar waveguide (CPW) to rectangular waveguide transition on high permittivity sapphire substrate. Monolithically fabricated uniplanar transition is composed of the fin-line taper and the open-type CPW to slotline transition that can be fully integrated with the flip-chip bonded monolithic microwave integrated circuits (MMICs) on single rigid sapphire substrate. From an optimized design of a low-loss single-section transition, we fabricate the back-toback transition for the characterization. The measurements show an insertion loss of ∼1.7 dB at 94 GHz from a single-section transition, and the performance is successfully verified from a 94-GHz mixer module assembled with a flip-chip bonded MMIC mixer.

Original languageEnglish
Pages (from-to)1694-1697
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume53
Issue number8
DOIs
StatePublished - Aug 2011

Keywords

  • 94 GHz
  • CPW
  • Flip-chip bonding
  • Slotline transition
  • Uniplanar fin-line taper

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