BD132B is a bidirectional detector intended for simultaneous sampling of incident and reflected waves in high-power 2450 MHz industrial applications using an WR430 (R22) rectangular waveguide. The bidirectional detector combines the following components:

• Dual directional coupler
• Attenuators
• Zero-bias Schottky diode detectors
• Low noise operational amplifiers

The unit delivers two DC voltages in the range 0 to approximately 9 V. The voltages are functions of the powers associated with waves propagating in opposite directions in the parent waveguide. Standard maximum working powers P_max are 1 kW, 10 kW, and 30 kW.

Typical Transfer Curve (T_A = 25°C, f = 2450MHz)