peakDirectivity

Calculate maximum directivity

Since R2026a

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    Syntax

    dir = peakDirectivity(obj,freq)

    Description

    dir = peakDirectivity(obj,freq) calculates and returns the maximum directivity of the parabolic reflector antenna in dBi at the specified frequency.

    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);

    Calculate its maximum directivity at 10 GHz.

    peakDirectivity(r,10e9)
    36.016798 dBi

    Input Arguments

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    Parabolic reflector antenna, specified as a reflectorCalculator object.

    Example: reflectorCalculator

    Analysis frequency, specified as a positive scalar.

    Example: 10e9

    Data Types: double

    Output Arguments

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    Maximum directivity, returned as a scalar in dBi.

    Version History

    Introduced in R2026a

    See Also

    Objects