DC311: Miniature Directional Coupler for R58 Waveguide

DC311 is a miniature directional coupler intended for sampling incident or reflected waves in high-power 5.8 GHz industrial applications using an R58 (WR159) rectangular waveguide.

The coupler is fixed to the waveguide with six M3 or similar-diameter screws after machining of appropriate holes in the broad waveguide wall.

Simple reversing the coupler causes it to sample the wave propagating in the opposite direction.

Frequency Range 5700 – 5900 MHz
Coupling Factor -60 dB ±1 dB standard
-50 dB ±1dB available on special order
-70 dB ±1dB available on special order
Directivity 25 dB min
Output connector Nf (SMAf available upon request)
VSWR (N, SMA) 1.6 max
Waveguide of destination R58 (40.39 mm x 20.19 mm, wall thickness 1.6 mm)