Antenna Engineering

Phased Array Scan Loss from Element Pattern and Scan Angle Calculator

Phased Array Scan Loss from Element Pattern and Scan Angle engineering calculator.

Quick Answer

Calculate Phased Array Scan Loss from Element Pattern and Scan Angle

Calculator

Scan Loss (dB)
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Result Interpretation

Phased Array Scan Loss from Element Pattern and Scan Angle Calculator computes Scan Loss in dB using the defined engineering formula and the input values provided.

Worked Example

Verified calculation

Given:

  • Scan Azimuth Angle = 0
  • Scan Elevation Angle = 0
  • Element Pattern DC Offset = 0
  • Element Pattern Cosine Coefficient A = 1
  • Element Pattern Cosine Coefficient B = 0
  • Element Pattern Sine Coefficient C = 0

Expected Result:

  • Scan Loss = 0

Engineering Interpretation:

Under the given input conditions, the calculated result is: Scan Loss = 0 dB.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

scan loss = -10 * log(cos(scan elevation angle) * (cos(scan elevation angle) * cos(scan azimuth angle) * element pattern cosine coefficient a + cos(scan elevation angle) * sin(scan azimuth angle) * element pattern cosine coefficient b + sin(scan elevation angle) * element pattern sine coefficient c + element pattern dc offset)) / log(10)

Formula family: formula_antenna_phased_array_scan_loss_vs_scan_angle_and_element_pattern_calculator

Variables

SymbolLabelRoleDescription
theta_scan_rad Scan Elevation Angle INPUT Scan Elevation Angle
phi_scan_rad Scan Azimuth Angle INPUT Scan Azimuth Angle
element_pattern_coeff_a Element Pattern Cosine Coefficient A INPUT Element Pattern Cosine Coefficient A
element_pattern_coeff_b Element Pattern Cosine Coefficient B INPUT Element Pattern Cosine Coefficient B
element_pattern_coeff_c Element Pattern Sine Coefficient C INPUT Element Pattern Sine Coefficient C
element_pattern_offset Element Pattern DC Offset INPUT Element Pattern DC Offset
scan_loss Scan Loss OUTPUT Scan Loss

Calculation Steps

  1. Enter the scan elevation angle in rad.
  2. Enter the scan azimuth angle in rad.
  3. Enter the element pattern cosine coefficient a in dimensionless.
  4. Enter the element pattern cosine coefficient b in dimensionless.
  5. Enter the element pattern sine coefficient c in dimensionless.
  6. Enter the element pattern dc offset in dimensionless.
  7. Step 1: Compute scan loss.
  8. Read the scan loss (dB) from the results.

Engineering Summary

Calculate Phased Array Scan Loss from Element Pattern and Scan Angle

Frequently Asked Questions

What does this calculator calculate?

The Phased Array Scan Loss from Element Pattern and Scan Angle Calculator estimates Scan Loss based on the input parameters you provide

Why is scan elevation angle important in this calculation?

scan elevation angle is directly proportional to scan loss. When you enter scan elevation angle in rad, the calculator uses it in the engineering formula to compute the output

How should I interpret the result scan loss?

The calculator outputs scan loss in dB. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Scan Elevation Angle (rad), Scan Azimuth Angle (rad), Element Pattern Cosine Coefficient A (dimensionless), Element Pattern Cosine Coefficient B (dimensionless), Element Pattern Sine Coefficient C (dimensionless), Element Pattern DC Offset (dimensionless). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

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