Article thumbnail
Location of Repository

Micromachined millimeter-wave rectangular-coaxial branch-line coupler with enhanced bandwidth

By Yi Wang, Maolong Ke, M.J. Lancaster and F. Huang

Abstract

Wideband millimeter-wave branch-line couplers have been demonstrated using micromachined air-filled rectangular-coaxial lines supported by quarter-wavelength stubs. The coaxial lines are constructed by bonding five layers of gold-plated silicon or SU8 slices. The measured coupler shows an insertion loss of 3.2-4.0 dB in the coupled and thru ports between the frequencies 31.3-47.6 GHz. The isolation is better than 12.8 dB, and the return loss less than -10 dB. In addition to providing support, the stubs enhance bandwidth when properly placed

Topics: TK
Publisher: IEEE Microwave Theory and Techniques Society
Year: 2009
DOI identifier: 10.1109/tmtt.2009.2021872
OAI identifier: oai:gala.gre.ac.uk:8452
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://dx.doi.org/10.1109/TMTT... (external link)
  • http://www2.gre.ac.uk/about/sc... (external link)
  • http://ieeexplore.ieee.org/xpl... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.