BD112B: Bidirectional Detector for R26 Waveguide, with DC Amplifers

BD112B is a bidirectional detector intended for simultaneous sampling of incident and reflected waves in high-power 2450 MHz industrial applications using an R26 (WR340) 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 Pmax are 1 kW, 10 kW and 30 kW.

Transfer Curve (f = 2450 MHz, RLOAD = 33 kΩ, TA = 25°C)