Characteristics of Microfabricated Rectangular Coax in the Ka Band

  • E. R. Brown
  • , A. L. Cohen
  • , C. A. Bang
  • , M. S. Lockard
  • , B. W. Byrne
  • , N. M. Vandelli
  • , D. S. McPherson
  • , G. Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

Miniature rectangular coaxial transmission line (with a 300 × 300 μm outer conductor) is simulated, fabricated, and tested up to the Ka band. It is made by electrochemical fabrication (EFAB™) of nickel such that the center conductor is supported primarily by ≈N4 stubs that also establish a resonant passband. The minimum insertion loss of a 1.67-cm-long test structure is found to be 1.74 dB at the passband center of 29 GHz. This is within 0.57 dB of the lowest insertion loss predicted by full-wave numerical simulations, indicative of the high precision and smooth surface morphology of the EFAB process.
Original languageEnglish
Pages (from-to)365-368
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume40
Issue number5
DOIs
StatePublished - Mar 5 2004
Externally publishedYes

ASJC Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Keywords

  • Electrochemical fabrication
  • Ka band
  • Nickel RF properties
  • Rectangular coaxial transmission line
  • Resonant passband

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