49 lines
1.1 KiB
Python
49 lines
1.1 KiB
Python
#!/usr/bin/env python3
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import numpy as np
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################################################################################
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# Operating Enviornment
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#####
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f0 = 28
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bw0 = 6.5 # assumed tuning range (GHz)
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bw_plt = 2 # Plotting range (GHz)
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fbw = bw0/f0 # fractional bandwidth
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frequency_sweep_steps = 101
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gamma_sweep_steps = 15
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gamma = 1 - np.power(f0 / (f0 + bw0/2),2)
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gamma_limit_ratio = 0.99 # how close gamma can get to theoretical extreme
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# Configuration Of Hardware
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#####
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q1_L = 10
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q1_C = 10
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l1 = 100e-3 # nH
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gm1 = 25e-3 # S
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# Compute frequency sweep
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#####
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w0 = f0*2*np.pi
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fbw_plt = bw_plt/f0
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delta = np.linspace(-fbw_plt/2,fbw_plt/2,frequency_sweep_steps)
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w = w0*(1+delta)
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f = f0*(1+delta)
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jw = 1j*w
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##################
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# Compute system
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#####
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c1 = 1/(w0*w0*l1)
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g1_L = 1 / (q1_L*w0*l1)
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g1_C = w0 * c1 / q1_C
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g1 = g1_L + g1_C
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# Verify gamma is valid
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#####
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gamma_max = g1 * np.sqrt(l1/c1)
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if gamma > (gamma_limit_ratio * gamma_max):
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print("==> WARN: Gamma to large, reset to %.3f (was %.3f) <==" % \
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(gamma_max_cap*gamma_max, gamma))
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gamma = gamma_max_cap*gamma_max
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