• Broadband - For sweep measurements
• High Gain - Lower Floor Noise for Emissions

Com-Power AH-118 Application

This antenna is suitable for ANSI 63.4, CISPR16, EN55022, FAA and other EMC standards that require emissions and immunity testing.

The high gain reduces input power requirements to generate high electromagnetic field levels for immunity testing. High gain also increases antenna sensitivity to low level signals.

During emissions measurement, the field strength (dBV/m) is calculated by adding the antenna factor

(dB/m) to the voltage measured (dBV) at the antenna terminals.

For immunity testing, the input power requirement Pin Watts to generate E Electric Field Strength in V/mat a distance in D meters can be calculated by using the following formula:

• P = E2 x D2 / 30 x Numeric Gain
• G = 20 log F -29.79- AF
• G = 10 log (Numeric Gain)

Where

• G= gain in dBi
• F = Frequency in MHz
• AF = antenna factor in dB