solve

Analyze antenna using Gaussian-beam method

Since R2026a

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    Syntax

    s = solve(obj,freq)

    Description

    s = solve(obj,freq) analyzes the parabolic reflector antenna at the specified frequency using the Gaussian-beam method and returns a table of calculated parameter values.

    example

    Examples

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    Open Live Script

    Design an offset parabolic reflector antenna with a 1.2 m diameter, 0.8 m focal length, and a 0.6 m clearance height fed by a four-element conical horn array with a 0.065 m aperture and 0.07 m element spacing.

    r = reflectorCalculator(Diameter=1.2,FocalLength=0.8,ClearanceHeight=0.6,RadiatorAperture=0.065, ...
    RadiatingElement="horn",FeedType="arrayfed",NumRadiators=4,Spacing=0.07);

    Analyze the antenna at 12 GHz.

    s = solve(r,12e9)
    s=18×1 table
                                                       Reflector Antenna Values
                                                       ________________________

    Focal Length (λ)                                             32.02         
    Clearance Height (λ)                                         24.02         
    Diameter (λ)                                                 48.03         
    Feed Tilt Angle θ* (°)                                       73.74         
    Half Angle Subtended By Reflector Center θ_0(°)              27.81         
    Angle At Bottom Edge θ1 (°)                                  41.11         
    Angle At Top Edge θ2 (°)                                     96.73         
    Efficiency (%)                                               17.55         
    Peak Directivity at Boresight Beam (dBi)                     36.02         
    Gain at Boresight Beam (dBi)                                 36.02         
    Gain at Scan Angle (dBi)                                     35.95         
    Illumination Taper (dB)                                      96.35         
    Half Power Beamwidth (°)                                      2.75         
    Feed Size (m)                                                 0.07         
    First SLL (dB)                                              -397.3         
    Gain Loss due to Worst Case Scan (dB)                         0.06         
      ⋮

    Input Arguments

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    Parabolic reflector antenna, specified as a reflectorCalculator object.

    Example: reflectorCalculator

    Analysis frequency, specified as a positive scalar.

    Example: 12e9

    Data Types: double

    Output Arguments

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    Analysis results, returned as a 18-by-1 table.

    Version History

    Introduced in R2026a

    See Also

    Objects