DD131: Fast Temperature-Stable Directional Detector for WR430 Waveguide
DD131 is a small-housing directional detector intended for sampling pulse-modulated incident or reflected waves in high-power 2450 MHz industrial applications using an WR430 (R22) rectangular waveguide.
The detector delivers well-scaled DC voltage proportional to the power of the wave propagating in one direction in the main waveguide.
Simply reversing the DD131 causes it to sample the wave propagating in the opposite direction.
The use of a tunnel diode provides the directional detector with improved temperature stability and fast pulse response.
| Specifications | |
|---|---|
| Frequency range | 2425 – 2475 MHz |
| Directivity | 25 dB min |
| Statistical spread of output voltage | ±1 dB (3-σ deviation) |
| Polarity | Negative |
| Temperature variation of output voltage | < 0.5 dB in 5 to 65°C range |
| DC output connector | SMAf |
| Waveguide of destination | WR430 |