DC114: Directional Coupler for WR340 Waveguide

DC114 is a small-housing directional coupler intended for sampling incident or reflected waves in high-power 2450 MHz industrial applications using an WR340 (R26) rectangular waveguide.

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

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

Specifications
Frequency range 2425 – 2475 MHz
Coupling factor / Max input power -50 dB / 3 kW
-60 dB / 30 kW
-70 dB / 50 kW
Directivity 25 dB min
Output connectors Nf or SMAf
VSWR (N, SMA) 1.25 max
Waveguide of destination WR340