def setUp(self):
self.n_ports = 2
self.wg = WG
wg = self.wg
#Port 0: VNA port 0
#Port 1: DUT port 0
#Port 2: DUT port 1
#Port 3: VNA port 1
self.Z = wg.random(n_ports=4, name='Z')
self.gamma_f = wg.random(n_ports=1, name='gamma_f')
self.gamma_r = wg.random(n_ports=1, name='gamma_r')
o = wg.open(nports=1, name='open')
s = wg.short(nports=1, name='short')
m = wg.match(nports=1, name='load')
om = rf.two_port_reflect(o, m)
mo = rf.two_port_reflect(m, o)
oo = rf.two_port_reflect(o, o)
ss = rf.two_port_reflect(s, s)
thru = wg.thru(name='thru')
ideals = [thru, om, mo, oo, ss]
measured = [self.measure(k) for k in ideals]
self.cal = rf.SixteenTerm(measured=measured,
ideals=ideals,
switch_terms=(self.gamma_f, self.gamma_r))
def setUp(self):
self.n_ports = 2
self.wg = WG
wg = self.wg
#Port 0: VNA port 0
#Port 1: DUT port 0
#Port 2: DUT port 1
#Port 3: VNA port 1
self.Z = wg.random(n_ports=4, name='Z')
self.gamma_f = wg.random(n_ports=1, name='gamma_f')
self.gamma_r = wg.random(n_ports=1, name='gamma_r')
o = wg.open(nports=1, name='open')
s = wg.short(nports=1, name='short')
m = wg.match(nports=1, name='load')
om = rf.two_port_reflect(o, m)
mo = rf.two_port_reflect(m, o)
oo = rf.two_port_reflect(o, o)
ss = rf.two_port_reflect(s, s)
thru = wg.thru(name='thru')
ideals = [thru, om, mo, oo, ss]
measured = [self.measure(k) for k in ideals]
self.cal16 = rf.SixteenTerm(measured=measured,
ideals=ideals,
switch_terms=(self.gamma_f, self.gamma_r))
r = wg.load(.95 + .1j, nports=1)
m = wg.match(nports=1)
mm = rf.two_port_reflect(m, m)
rm = rf.two_port_reflect(r, m)
mr = rf.two_port_reflect(m, r)
rr = rf.two_port_reflect(r, r)
ideals = [thru, mm, rr, rm, mr]
measured = [self.measure(k) for k in ideals]
self.cal_lmr16 = rf.LMR16(
measured=measured,
ideals=[thru],
ideal_is_reflect=False,
#Automatic sign detection doesn't work if the
#error terms aren't symmetric enough
sign=1,
switch_terms=(self.gamma_f, self.gamma_r))
#Same error network, but without leakage terms
#Primary leakage
self.Z.s[:, 3, 0] = 0 # forward isolation
self.Z.s[:, 0, 3] = 0 # reverse isolation
self.Z.s[:, 2, 1] = 0 # forward port isolation
self.Z.s[:, 1, 2] = 0 # reverse port isolation
#Cross leakage
self.Z.s[:, 3, 1] = 0 # forward port 2 isolation
self.Z.s[:, 1, 3] = 0 # reverse port 2 isolation
self.Z.s[:, 2, 0] = 0 # forward port 1 isolation
self.Z.s[:, 0, 2] = 0 # reverse port 1 isolation
measured = [self.measure(k) for k in ideals]
self.cal8 = rf.EightTerm(
measured=measured,
ideals=ideals,
switch_terms=(self.gamma_f, self.gamma_r),
)
#cal.solved_through.plot_s_deg(m=1, n=0)
#cal.solved_reflect.plot_s_smith()
if 1:
if cal != None:
dut = cal.apply_cal(dut)
cal = skrf.TwelveTerm(\
measured = [os, so, ll, through],
ideals =[os_i, so_i, ll_i, through_i],
n_thrus = 1,
)
cal.run()
if 0:
cal = skrf.SixteenTerm(\
measured = [ss, os, so, ll, through],
ideals = [ss_i, os_i, so_i, ll_i, through_i],
)
cal.run()
coefs = cal.coefs
if 0:
cal = skrf.EightTerm(\
measured = [os, so, ll, through],
ideals = [os_i, so_i, ll_i, through_i]
)
cal.run()
plt.figure()
dut = cal.apply_cal(dut)