ATC RADAR BEACON SLS CRYSTAL DIODE SWITCH.
AMERICAN ELECTRONIC LABS INC COLMAR PA
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The development of a crystal diode microwave switch with coaxial input and output connectors is described. The switch was designed for alternately switching the RF output pulses of an ATC Radar Beacon System transmitter from a rotating directional antenna to an omnidirectional antenna. The switch is a fast-acting solid-state switch that has relatively high power handling capability, low insertion loss and high isolation between the output channels. The solid-state switch driver is also described. The switch meets all design specifications. Field replacement of crystal diodes is not recommended in the model delivered but should be a design goal for future production model switches. The acceptance test procedure and test results are included. Author