eta_a_from_areas

pycraf.conversions.eta_a_from_areas(geom_area, eff_area)

Antenna efficiency from geometric and effective antenna areas.

The effective and geometric antenna areas are linked via the antenna efficiency:

A_eff = eta_a * A_geom.

Parameters:

eff_areaQuantity

Effective antenna area, A_eff [m**2]

geom_areaQuantity

Geometric antenna area, A_geom [m**2]

Returns:

eta_aQuantity

Antenna efficiency [%, dimless]

Notes

Because all parameters/returned values are Astropy Quantities (see Quantity), unit conversion is automatically performed.