M.E.C.’s S70L-345 is a WR284 super high power low pass filter. It operates at S-band and handles 5 MW peak, 40 KW average. Two filters are used for this application. The signal is divided, passed through both balanced filters and then recombined at the output. High conductivity aluminum alloy material helps lower the insertion loss (typically 0.2 dB). The low loss, high precision machining, and high efficiency cooling fins all aid in achieving a temperature rise is less than 70° F above ambient at 35 KW average input power. These factors promote problem free operation at extremely high power levels.
This filter is machined and brazed using a carefully controlled process. Its rugged construction makes it suitable for extreme shipboard environments. This field proven design remains operational after many years, failure free, in numerous installations.