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 language | English |
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Pages (from-to) | 1694-1697 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 53 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2011 |
Keywords
- 94 GHz
- CPW
- Flip-chip bonding
- Slotline transition
- Uniplanar fin-line taper