Directional Detector DD132 Datasheet - S-TEAM Lab

DD132: Directional Detector for R-22 Waveguide
General description
DD132 is a miniature directional detector
intended for sampling incident or reflected
waves in high-power 2450 MHz industrial
applications using R-22 rectangular
waveguide. The directional detector combines
three components:
• directional coupler
• attenuator
• zero-bias Schottky diode detector
The detector delivers well-scaled DC voltage
proportional to the power of the wave
propagating in one direction in the main
waveguide. The coupler is fixed to the
waveguide with six M3 or similar-diameter
screws after machining of appropriate holes in
the broad waveguide wall. Simple reversing
the DD132 causes it to sample the wave
propagating in the opposite direction.
Specifications
Frequency range
Directivity
Statistical spread of output voltage
Polarity
Video resistance (typ)
DC output connector
Waveguide of destination
2425 – 2475 MHz
25 dB min
±1 dB (3-σ deviation)
Negative
5 kΩ
SMA-F
R-22 (109.22 mm x 54.61 mm, wall thickness 2 mm)
Typical transfer characteristics
S-TEAM Lab, Chrobákova 2, P.O. Box 35, 840 02 Bratislava 42, Slovakia
Tel./fax: +421 - 2 - 6542 7968 http://www.s-team.sk

DD132
Dimensional drawing (all units in millimeters)
REV. A1 Data subject to change. - 2 - 3-NOV-2004