antenna

Specifies the maximum antenna ratios for one or more antenna models (oxide thicknesses) for a layer. This constraint holds a value that specifies the maximum allowed ratio of the layer’s antenna area to the gate area, and specifies how that maximum ratio changes if a diode is present on the wire.

antenna Quick Reference

Value Types

Parameters

• antennaAreaFactor (FltValue) specifies a factor, between 0 and 1, for calculating the antenna area. The default value is 1.
• antennaDiffAreaReduceFactor (Flt1DTblValue) multiplies the conductor area by a floating point factor that depends on the diffusion area attached to the net. If the antennaDiffMinusFactor is non-zero, the subtraction of the diffusion area times the antennaDiffMinusFactor must occur after the metal and cut areas are multiplied by the antennaDiffAreaReduceFactor.
• antennaDiffMinusFactor (FltValue) determines how the diffusion area connected to the net is subtracted from the antenna area when calculating antenna/gate ratio for both metal and cut layers.
• antennaDiffPlusFactor (FltValue) determines how the diffusion area connected to the net is added to the area of the gate for antenna/gate ratio calculations. The default value is 0.0.

Related Topics

Antenna Constraints