BD131: Fast Temperature-Stable Bidirectional Detector for R22 Waveguide

BD131 is a bidirectional detector intended for simultaneous sampling of incident and reflected waves in high-power 2450 MHz industrial applications using an R22 (WR430) rectangular waveguide. The bidirectional detector combines the following components:

  • 4-port directional coupler (70-dB coupling)
  • Attenuators
  • Tunnel 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. The standard options for maximum working power are 1 kW, 10 kW and 30 kW. In addition to these, customized maximum powers are optionally available.

The use of tunnel diodes provides the bidirectional detector with improved temperature stability and fast pulse response.

BD131 Bidirectional Detector (BD132B shown)