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Radar RCS Calculator

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Radar RCS and Range Calculator | Radar Equation Solver
CALC
Please enter valid values.
CALCULATED MAXIMUM RANGE
Rmax
Radar Range Visualization
1 km 10 km 100 km 1000 km
Wavelength
Antenna Gain
Target RCS
Please enter valid radius.
RESULTS
Radar Cross Section

Input Parameters Specification

Transmit Power (Pt) Peak power generated by the radar transmitter. Common units include Watts (W), Kilowatts (kW), or dBm.
Antenna Gain (G) The directional gain performance factor of the radar antenna array. Provided in dBi or pure linear scale ratio.
Frequency (f) / Wavelength (λ) The operating wave frequency parameter. Helps trace the transmission wavelength factor ($\lambda = c / f$).
Target RCS (σ) / Radius Radar Cross Section area footprint ($\text{m}^2$ or dBsm) or structural physical object sphere radius bounds.
Minimum Signal (Smin) Receiver noise threshold sensitivity matrix limits, determining maximum target range acquisition parameters.

Practical Operational Examples

Example 1: Long-Range Surveillance Radar Set
• Transmit Power (Pt) = 500 kW | Antenna Gain (G) = 35 dBi | Frequency = 1.5 GHz
• Target RCS (σ) = 2.5 m² | Minimum Signal (Smin) = -105 dBm
• Expected Rmax Performance Output Boundary: ~234.50 km
Example 2: Target Structural Sphere Radar Cross Section (RCS)
• Physical Target Object Radius = 0.50 Meters (m)
• Applied Geometrical Model Formula: $\sigma = \pi \times \text{Radius}^2$
• Calculated Cross Section Footprint Result Area: 0.785398 m²

Radar Cross Section Scattering Architecture

The standard multi-parameter radar matrix monitors the target profile backscattering signatures depending on azimuth orientation coordinates.

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Formulas & Mathematical Logic

Radar Maximum Detection Distance Formula:
Rmax = [ (Pt × G² × λ² × σ) / ((4π)³ × Smin) ]1/4
Radar Cross Section (RCS Area Calculation):
RCS (σ) = π × Radius²
Wavelength Propagation Logic Constant:
λ = c / f   |   Speed of Light (c) = 299,792,458 m/s

The maximum radar range framework applies the inverse fourth-power wave distribution law to compute electromagnetic wave attenuation levels across radar-to-target paths.

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About this tool

Radar RCS Calculator is a free online calculator tool. Use it to get instant, accurate results for your electronics calculations.