MIL Standards: MIL-STD-461 RS103: Radiated Susceptibility, Electric Field

Signal Generator – Creates signals and modulations for amplifier.

Power Amplifier – Takes signal, amplifies it sometimes greater than 1,000,000 times original power (0dbm going into 1000 W).

Low Loss Cables – Interconnect all coax equipment after amplifier.

Dual Directional Coupler – Couples off nominal values of forward and reverse power (typically by 40 db or 50 db).

Power Sensors – Measures coupled power from dual directional coupler for monitoring (may need attenuator between forward coupled port and power sensor to avoid damage).

Power Meter – Dual channel, displays power sensor reading in dBm or Watts.

Tripod – Holds up radiating antenna, non-metallic.

Radiating Antenna – Transducer which emits RF power into space from signal source.

Electric Field Probe – Measures e-field strength (V/m) on X, Y, Z axes, and composite and returns data via fiber cable.

Fiber Optic Communication Link – Non-conductive communication link between field probe and probe interface.

Probe Interface – Provides both power to and communication to e-field probe.

MIL-STD-461E-RS103.jpg
 

Frequency Amplifier Antenna DUT Placement Max DUT Dimension/Size at Specified Ant. Dist. (m)
10 kHz – 25 MHz 5000 W 10 kHz – 30 MHz Between Elements ≤ 0.90 x 2.10 x 2.90
10 kHz – 30 MHz 150 W 10 kHz – 30 MHz Between Elements ≤ 0.80 x 0.50 x 0.50
10 kHz – 100 MHz 500 W 10 kHz – 100 MHz Between Elements ≤ 0.36 x 0.46 x 0.36
30 MHz – 220 MHz 5000 W 25 – 1000 MHz Dependent on Shielded Enclosure Parameters
30 MHz – 225 MHz 16000 W 26 – 1000 MHz 1 meter 0.43
220 MHz – 1 GHz 1000 W 80 – 1000 MHz 1 meter 0.53
800 MHz – 4.2 GHz 350 W 800 MHz – 5 GHz 1 meter 0.31
2.5 – 7.5 GHz 300 W 2 – 10.6 GHz 1 meter 0.31
4 GHz – 8 GHz 200 W 4 – 8 GHz 1 meter 0.24
4 GHz – 8 GHz 60 W 4 – 8 GHz 1 meter 0.24
7.5 – 18 GHz 300 W 7.5 – 18 GHz 1 meter 0.5
18 GHz – 26 GHz 40 W 18 – 26.5 GHz 1 meter 0.32
26 GHz – 40 GHz 40 W 26.5 – 40 GHz 1 meter 0.19