def test_get_sparameter_data(self):
'''
This tests the get_sparameter_data function.
'''
with open(os.path.join(self.test_dir, 'simple_touchstone.s2p')) as fid:
touch = Touchstone(fid)
expected_keys = [
"frequency",
"S11R",
"S11I",
"S12R",
"S12I",
"S21R",
"S21I",
"S22R",
"S22I",
]
unexpected_keys = [
'S11DB',
'S11M',
]
# get dict data structure
sp_ri = touch.get_sparameter_data(format="ri")
# test data structure
for ek in expected_keys:
self.assertTrue(ek in sp_ri)
for uk in unexpected_keys:
self.assertFalse(uk in sp_ri)
# test data contents
expected_sp_ri = {
'frequency': npy.array([1.0e+09, 1.1e+09]),
'S11R': npy.array([1., 9.]),
'S11I': npy.array([2., 10.]),
'S21R': npy.array([3., 11.]),
'S21I': npy.array([4., 12.]),
'S12R': npy.array([5., 13.]),
'S12I': npy.array([6., 14.]),
'S22R': npy.array([7., 15.]),
'S22I': npy.array([8., 16.]),
}
for k in sp_ri:
self.assertTrue(k in expected_sp_ri)
self.assertTrue(
(expected_sp_ri[k] == sp_ri[k]).all(),
msg='Field %s does not match. Expected "%s", got "%s"' %
(k, str(expected_sp_ri[k]), str(sp_ri[k])))
def test_get_sparameter_data(self):
'''
This tests the get_sparameter_data function.
'''
with open(os.path.join(self.test_dir, 'simple_touchstone.s2p')) as fid:
touch = Touchstone(fid)
spardict = touch.get_sparameter_data(format="ri")
self.assertTrue("frequency" in spardict)
self.assertTrue("S11R" in spardict)
self.assertTrue("S11I" in spardict)
self.assertTrue("S12R" in spardict)
self.assertTrue("S12I" in spardict)
self.assertTrue("S21R" in spardict)
self.assertTrue("S21I" in spardict)
self.assertTrue("S22R" in spardict)
self.assertTrue("S22I" in spardict)
self.assertTrue("S11DB" not in spardict)
self.assertTrue("S11M" not in spardict)
def test_get_sparameter_data(self):
'''
This tests the get_sparameter_data function.
'''
with open(os.path.join(self.test_dir, 'simple_touchstone.s2p')) as fid:
touch = Touchstone(fid)
spardict = touch.get_sparameter_data(format="ri")
self.assertTrue("frequency" in spardict)
self.assertTrue("S11R" in spardict)
self.assertTrue("S11I" in spardict)
self.assertTrue("S12R" in spardict)
self.assertTrue("S12I" in spardict)
self.assertTrue("S21R" in spardict)
self.assertTrue("S21I" in spardict)
self.assertTrue("S22R" in spardict)
self.assertTrue("S22I" in spardict)
self.assertTrue("S11DB" not in spardict)
self.assertTrue("S11M" not in spardict)
def test_get_sparameter_data(self):
"""
This tests the get_sparameter_data function.
"""
with open(os.path.join(self.test_dir, 'simple_touchstone.s2p')) as fid:
touch = Touchstone(fid)
expected_keys = ["frequency", "S11R", "S11I", "S12R", "S12I",
"S21R", "S21I", "S22R", "S22I", ]
unexpected_keys = ['S11DB', 'S11M', ]
# get dict data structure
sp_ri = touch.get_sparameter_data(format="ri")
# Get dict data in db to check ri -> db/angle conversion
sp_db = touch.get_sparameter_data(format="db")
# test data structure
for ek in expected_keys:
self.assertTrue(ek in sp_ri)
for uk in unexpected_keys:
self.assertFalse(uk in sp_ri)
# test data contents
expected_sp_ri = {
'frequency': npy.array([1.0e+09, 1.1e+09]),
'S11R': npy.array([1., 9.]),
'S11I': npy.array([ 2., 10.]),
'S21R': npy.array([ 3., 11.]),
'S21I': npy.array([ 4., 12.]),
'S12R': npy.array([ 5., 13.]),
'S12I': npy.array([ 6., 14.]),
'S22R': npy.array([ 7., 15.]),
'S22I': npy.array([ 8., 16.]),
}
S11 = npy.array([1., 9.]) + 1j*npy.array([ 2., 10.])
S21 = npy.array([ 3., 11.]) + 1j*npy.array([ 4., 12.])
S12 = npy.array([ 5., 13.]) + 1j*npy.array([ 6., 14.])
S22 = npy.array([ 7., 15.]) + 1j*npy.array([ 8., 16.])
expected_sp_db = {
'frequency': npy.array([1.0e+09, 1.1e+09]),
'S11DB': 20*npy.log10(npy.abs(S11)),
'S11A': npy.angle(S11, deg=True),
'S21DB': 20*npy.log10(npy.abs(S21)),
'S21A': npy.angle(S21, deg=True),
'S12DB': 20*npy.log10(npy.abs(S12)),
'S12A': npy.angle(S12, deg=True),
'S22DB': 20*npy.log10(npy.abs(S22)),
'S22A': npy.angle(S22, deg=True),
}
for k in sp_ri:
self.assertTrue(k in expected_sp_ri)
self.assertTrue( (expected_sp_ri[k] == sp_ri[k]).all(),
msg='Field %s does not match. Expected "%s", got "%s"'%(
k, str(expected_sp_ri[k]), str(sp_ri[k])) )
for k in sp_db:
self.assertTrue(k in expected_sp_db)
self.assertTrue( (expected_sp_db[k] == sp_db[k]).all(),
msg='Field %s does not match. Expected "%s", got "%s"'%(
k, str(expected_sp_db[k]), str(sp_db[k])) )
