Patent ID: 8065101

Claim:
An electromagnetic field intensity calculating method using a computer, the computer including a processor unit, a storage unit, and a display unit that are connected to each other via a bus, the method comprising: extracting pattern form data of a conductor pattern from design data of an object by the processor unit, the object being included in the storage unit; dividing the pattern form data into a plurality of square mesh patterns by the processor unit, the plurality of square mesh patterns having a single size; correcting the mesh pattern including an outline of the pattern form data by the processor unit, the mesh pattern including squares having at least two different sizes; calculating intensity of an electromagnetic field radiated from the object using the mesh pattern by the processor unit; and displaying a result of the calculating on the display unit, wherein in the correcting, the entire region of a partially lost mesh in the mesh pattern is filled with the conductor pattern or is completely blanked by comparing a threshold value with the ratio Sr (=Sb/Sc) between a pattern area Sc occupied by the conductor pattern in the mesh pattern and a blank area Sb in the mesh pattern including an outline of the pattern form data.