A turnstile junction waveguide orthomode transducer

by Alessandro Navarrini, Richard L. Plambeck
IEEE Transactions on Microwave Theory and Techniques ()


An orthomode transducer with a circular waveguide input and two rectangular waveguide outputs is described. The design utilizes a turnstile junction and two E-plane power combiners. A K-band version of this device has been constructed and tested. From 18 to 26 GHz, the input reflection coefficient was less than -19 dB, the cross-polarization was less than -48 dB, and the transmission loss was ~0.15 dB. We estimate the mechanical tolerances that would be required to scale this device to the 200-270-GHz band for use in a dual-polarization radio-astronomy receiver

Cite this document (BETA)

Readership Statistics

5 Readers on Mendeley
by Discipline
by Academic Status
20% Student (Postgraduate)
20% Ph.D. Student
20% Post Doc
by Country
20% United States


Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in