openEMS/python/openEMS/physical_constants.py
Thorsten Liebig 1ebb7932c1 python: add documentation
Signed-off-by: Thorsten Liebig <Thorsten.Liebig@gmx.de>
2016-09-08 22:10:27 +02:00

27 lines
887 B
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2015,20016 Thorsten Liebig (Thorsten.Liebig@gmx.de)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import numpy as np
C0 = 299792458 # m/s
MUE0 = 4e-7*np.pi # N/A^2
EPS0 = 1/(MUE0*C0**2) # F/m
# free space wave impedance
Z0 = np.sqrt(MUE0/EPS0) # Ohm