The WR284 from Scientific Microwave Corporation is an 8-bit digitally controlled waveguide phase shifter that operates at 2997.924 MHz. It provides a phase shift from 0 to 360° with a least significant bit (LSB) of 1.4° and has a repetition rate of 3 Hz. This phase shifter can handle an input power of up to 1.5 kW and a peak power of 40 MW with a VSWR of 1.10:1.
The WR284 has a TTL control bus that allows for 256 discrete phase values and is controlled using a control voltage of 0/+5 V. The phase shifter uses a DB15 connector that accepts an 8-bit codeword input and a trigger signal. It is based on a hybrid coupler with a movable short, using a WR284 waveguide interface, and requires an AC supply of 220 V.
This phase shifter is ideal for precise phase control in critical phased array antennas, radar systems, and satellite communications.
