Constants

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Below is a list of the constants and their values available for use in Sonnet Equations. All constants use uppercase characters.

Entry

Definition

FREQ

The frequency in Hz at which the present data point is being calculated.

PI

π

TWO_PI

EPSILON_0

Epsilon sub zero - The permittivity of free space

ε0= 8.854187816E-12 F/m

MU_0

Mu sub zero - The permeability of free space

μ0= 0.000000125664 H/m

ETA_0

The impedance of free space

η0= 376.7303136 ohms

RAD_TO_DEG

Factor to convert radians to degrees 57.2957795

DEG_TO_RAD

Factor to convert degrees to radians. 1.0/57.2957795

VELC

Speed of light in free space

c = 299792458.0 m/ sec

CELL_X

Cell size in the X direction (Geometry Project Editor tab only)

CELL_Y

Cell size in the Y direction (Geometry Project Editor tab only)

REF_L

Left Reference Plane (Geometry Project Editor tab only)

REF_R

Right Reference Plane (Geometry Project Editor tab only)

REF_T

Top Reference Plane (Geometry Project Editor tab only)

REF_B

Bottom Reference Plane (Geometry Project Editor tab only)

BOX_X

Box size in the X direction in the present project units (Geometry Project Editor tab only)

BOX_Y

Box size in the Y direction  in the present project units (Geometry Project Editor tab only)

CELLS_X

The number of cells in the X direction (Geometry Project Editor tab only)

CELLS_Y

The number of cells in the Y direction (Geometry Project Editor tab only)

Exponential Notation Syntax

When using exponential notation, you must use a minus sign "-"  to indicate a negative exponent. A positive exponent may be indicated by a ''+'' sign. The positive sign may be used but is not necessary; the positive is implied. Please see the example below.

images/exponent_example.gif