Radar Target RCS Detection Range Calculator

Radar Systems & Sensor Physics: Compute maximum free-space detection range ($R_{\text{max}}$) for targets across conventional and stealth Radar Cross Section (RCS) categories.

Transmitter & Antenna Parameters

Transmitter Peak Power $P_t$ (kW):

Antenna Gain $G$ (dB):

Frequency $f$ (GHz):

Receiver Bandwidth $B$ (MHz):

Target Radar Cross Section (RCS)

Target Class Preset:

Target RCS $\sigma$ (m²):

Required SNR (dB):

Receiver Noise Figure $F_n$ (dB):

Total System Losses $L$ (dB):

Radar Detection Range Results

Maximum Detection Range

-- km

-- NM (Nautical Miles)

Minimum Detectable Signal ($S_{\text{min}}$)

-- dBm

Thermal Floor: -- dBm

Target RCS in Decibels

-- dBsm

Range Factor vs 1 m²: -- x

Radar Wavelength ($\lambda$)

-- cm

IEEE Radar Band: X-band

RCS Scaling Law ($R \propto \sqrt[4]{\sigma}$):

• Reducing target RCS by $90\%$ (-10 dB) reduces detection range by $44\%$.

• Reducing target RCS by $99.9\%$ (-30 dB, stealth) reduces detection range by $75\%$.

• Effective Isotropic Radiated Power ($EIRP = P_t G$): -- dBW

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Radar Target RCS Detection Range Calculator

Transmitter & Antenna Parameters

Target Radar Cross Section (RCS)

Radar Detection Range Results

Frequently Asked Questions