DC123: Directional Coupler for R32 Waveguide

DC123 is a small-housing directional coupler intended for sampling incident or reflected waves in high-power 2450 MHz industrial applications using R32 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.

Specifications
Frequency Range 2425 – 2475 MHz
Coupling Factor -50 dB ± 1dB
-60 dB ±1 dB (default)
-70 dB ±1dB
Directivity 25 dB min
Output connector Nf (SMAf available upon request)
VSWR (N, SMA) 1.25 max
Waveguide of destination R32 (72.14 mm x 34.04 mm, wall thickness 2 mm)