Every defense radar program runs into the same problem: a high-power transmitter and a sensitive receiver sit only inches apart. The signal has to flow in one direction without bleeding into the other. Engineers building airborne, shipboard, or ground-based platforms...
Every high-power transmit chain has a vulnerability. The power amplifier at the output stage is built to drive a matched 50-ohm load. When the antenna does not cooperate, whether from VSWR variation, impedance shifts at wide scan angles, or a damaged element in a...
