BD112 is a bidirectional detector intended for simultaneous sampling of incident and reflected waves in high-power 2450 MHz industrial applications using an WR340 (R26) rectangular waveguide. The bidirectional detector combines the following components:

• 4-port directional coupler (70-dB coupling)
• Attenuators
• Zero-bias Schottky diode detectors

The detector delivers well-scaled DC voltages proportional to power of the waves propagating in forward and reverse directions in the main waveguide. Standard maximum working powers P_max are 1 kW, 10 kW and 30 kW.

Transfer Curve (f = 2450 MHz, R_LOAD = 33 kΩ, T_A = 25°C)