BC211: Bidirectional Coupler for R9 Waveguide

BC211 is a dual directional coupler intended for simultaneous sampling of both incident and reflected waves in high-power 900 MHz industrial applications using an R9 (WR975) rectangular waveguide.

Two coupling factor options are available: -60 dB for maximal input power 10 kW in the waveguide, and -70 dB for maximal input power 100 kW.

The coupler is fixed to the parent waveguide using eight M3 or similar-diameter screws after machining of appropriate holes in the broad waveguide wall. The parent waveguide (standard or customized) can optionally be part of delivery. The standard length is 300 mm.

Frequency Range 895 – 925 MHz
Coupling Factor -60 dB (max. input power 10 kW)
-70 dB (max. input power 100 kW)
Directivity 25 dB min
Output connector 2 x SMAf
VSWR (SMA) 1.25 max
Waveguide of destination R9 (247.65 mm x 123.825 mm)