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Craig Warren
2022-11-09 09:29:23 +00:00
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共有 269 个文件被更改，包括 14 次插入 和 261 次删除
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toolboxes/GPRAntennaModels/MALA.py 普通文件
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# Copyright (C) 2015-2021, Craig Warren
#
# This module is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
# To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
#
# Please use the attribution at http://dx.doi.org/10.1190/1.3548506
import logging
import gprMax
logger = logging.getLogger(__name__)
def antenna_like_MALA_1200(x, y, z, resolution=0.001, **kwargs):
"""Inserts a description of an antenna similar to the MALA 1.2GHz antenna.
Can be used with 1mm (default) or 2mm spatial resolution.
The external dimensions of the antenna are 184x109x46mm.
One output point is defined between the arms of the receiver bowtie.
The bowties are aligned with the y axis so the output is the y component
of the electric field (x component if the antenna is rotated 90 degrees).
Args:
x, y, z (float): Coordinates of a location in the model to insert the
antenna. Coordinates are relative to the geometric
centre of the antenna in the x-y plane and the
bottom of the antenna skid in the z direction.
resolution (float): Spatial resolution for the antenna model.
kwargs (dict): Optional variables, e.g. can be fed from an optimisation
process.
Returns:
scene_objects (list): All model objects that will be part of a scene.
"""
# All model objects that will be returned by function
scene_objects = []
# Antenna geometry properties
casesize = (0.184, 0.109, 0.040)
casethickness = 0.002
cavitysize = (0.062, 0.062, 0.037)
cavitythickness = 0.001
pcbthickness = 0.002
polypropylenethickness = 0.003
hdpethickness = 0.003
skidthickness = 0.006
bowtieheight = 0.025
# If using parameters from an optimisation
try:
kwargs
excitationfreq = kwargs['excitationfreq']
sourceresistance = kwargs['sourceresistance']
absorberEr = kwargs['absorberEr']
absorbersig = kwargs['absorbersig']
# Otherwise choose pre-set optimised parameters
except:
# Original optimised values from http://hdl.handle.net/1842/4074
excitationfreq = 0.978e9
sourceresistance = 1000
absorberEr = 6.49
absorbersig = 0.252
x = x - (casesize[0] / 2)
y = y - (casesize[1] / 2)
# Coordinates of source excitation point in antenna
tx = x + 0.063, y + 0.052, z + skidthickness
if resolution == 0.001:
dx = 0.001
dy = 0.001
dz = 0.001
elif resolution == 0.002:
dx = 0.002
dy = 0.002
dz = 0.002
cavitysize = (0.062, 0.062, 0.036)
cavitythickness = 0.002
polypropylenethickness = 0.002
hdpethickness = 0.004
bowtieheight = 0.024
tx = x + 0.062, y + 0.052, z + skidthickness
else:
logger.exception('This antenna module can only be used with a spatial resolution of 1mm or 2mm')
raise ValueError
# SMD resistors - 3 on each Tx & Rx bowtie arm
txres = 470 # Ohms
txrescellupper = txres / 3 # Resistor over 3 cells
txsigupper = ((1 / txrescellupper) * (dy / (dx * dz))) / 2 # Divide by number of parallel edges per resistor
txrescelllower = txres / 4 # Resistor over 4 cells
txsiglower = ((1 / txrescelllower) * (dy / (dx * dz))) / 2 # Divide by number of parallel edges per resistor
rxres = 150 # Ohms
rxrescellupper = rxres / 3 # Resistor over 3 cells
rxsigupper = ((1 / rxrescellupper) * (dy / (dx * dz))) / 2 # Divide by number of parallel edges per resistor
rxrescelllower = rxres / 4 # Resistor over 4 cells
rxsiglower = ((1 / rxrescelllower) * (dy / (dx * dz))) / 2 # Divide by number of parallel edges per resistor
# Material definitions
absorber = gprMax.Material(er=absorberEr, se=absorbersig, mr=1, sm=0, id='absorber')
pcb = gprMax.Material(er=3, se=0, mr=1, sm=0, id='pcb')
hdpe = gprMax.Material(er=2.35, se=0, mr=1, sm=0, id='hdpe')
polypropylene = gprMax.Material(er=2.26, se=0, mr=1, sm=0, id='polypropylene')
txreslower = gprMax.Material(er=3, se=txsiglower, mr=1, sm=0, id='txreslower')
txresupper = gprMax.Material(er=3, se=txsigupper, mr=1, sm=0, id='txresupper')
rxreslower = gprMax.Material(er=3, se=rxsiglower, mr=1, sm=0, id='rxreslower')
rxresupper = gprMax.Material(er=3, se=rxsigupper, mr=1, sm=0, id='rxresupper')
scene_objects.extend((absorber, pcb, hdpe, polypropylene, txreslower, txresupper,
rxreslower, rxresupper))
# Antenna geometry
# Shield - metallic enclosure
b1 = gprMax.Box(p1=(x, y, z + skidthickness),
p2=(x + casesize[0], y + casesize[1], z + skidthickness + casesize[2]),
material_id='pec')
b2 = gprMax.Box(p1=(x + 0.020, y + casethickness, z + skidthickness),
p2=(x + 0.100, y + casesize[1] - casethickness,
z + skidthickness + casethickness), material_id='free_space')
b3 = gprMax.Box(p1=(x + 0.100, y + casethickness, z + skidthickness),
p2=(x + casesize[0] - casethickness, y + casesize[1] - casethickness,
z + skidthickness + casethickness), material_id='free_space')
# Absorber material
b4 = gprMax.Box(p1=(x + 0.020, y + casethickness, z + skidthickness),
p2=(x + 0.100, y + casesize[1] - casethickness,
z + skidthickness + casesize[2] - casethickness),
material_id='absorber')
b5 = gprMax.Box(p1=(x + 0.100, y + casethickness, z + skidthickness),
p2=(x + casesize[0] - casethickness, y + casesize[1] - casethickness,
z + skidthickness + casesize[2] - casethickness),
material_id='absorber')
scene_objects.extend((b1, b2, b3, b4, b5))
# Shield - cylindrical sections
c1 = gprMax.Cylinder(p1=(x + 0.055, y + casesize[1] - 0.008, z + skidthickness),
p2=(x + 0.055, y + casesize[1] - 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.008, material_id='pec')
c2 = gprMax.Cylinder(p1=(x + 0.055, y + 0.008, z + skidthickness),
p2=(x + 0.055, y + 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.008, material_id='pec')
c3 = gprMax.Cylinder(p1=(x + 0.147, y + casesize[1] - 0.008, z + skidthickness),
p2=(x + 0.147, y + casesize[1] - 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.008, material_id='pec')
c4 = gprMax.Cylinder(p1=(x + 0.147, y + 0.008, z + skidthickness),
p2=(x + 0.147, y + 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.008, material_id='pec')
c5 = gprMax.Cylinder(p1=(x + 0.055, y + casesize[1] - 0.008, z + skidthickness),
p2=(x + 0.055, y + casesize[1] - 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.007, material_id='free_space')
c6 = gprMax.Cylinder(p1=(x + 0.055, y + 0.008, z + skidthickness),
p2=(x + 0.055, y + 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.007, material_id='free_space')
c7 = gprMax.Cylinder(p1=(x + 0.147, y + casesize[1] - 0.008, z + skidthickness),
p2=(x + 0.147, y + casesize[1] - 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.007, material_id='free_space')
c8 = gprMax.Cylinder(p1=(x + 0.147, y + 0.008, z + skidthickness),
p2=(x + 0.147, y + 0.008,
z + skidthickness + casesize[2] - casethickness),
r=0.007, material_id='free_space')
b6 = gprMax.Box(p1=(x + 0.054, y + casesize[1] - 0.016, z + skidthickness),
p2=(x + 0.056, y + casesize[1] - 0.014,
z + skidthickness + casesize[2] - casethickness),
material_id='free_space')
b7 = gprMax.Box(p1=(x + 0.054, y + 0.014, z + skidthickness),
p2=(x + 0.056, y + 0.016,
z + skidthickness + casesize[2] - casethickness),
material_id='free_space')
b8 = gprMax.Box(p1=(x + 0.146, y + casesize[1] - 0.016, z + skidthickness),
p2=(x + 0.148, y + casesize[1] - 0.014,
z + skidthickness + casesize[2] - casethickness),
material_id='free_space')
b9 = gprMax.Box(p1=(x + 0.146, y + 0.014, z + skidthickness),
p2=(x + 0.148, y + 0.016,
z + skidthickness + casesize[2] - casethickness),
material_id='free_space')
scene_objects.extend((c1, c2, c3, c4, c5, c6, c7, c8, b6, b7, b8, b9))
# PCB
b10 = gprMax.Box(p1=(x + 0.020, y + 0.018, z + skidthickness),
p2=(x + casesize[0] - casethickness, y + casesize[1] - 0.018,
z + skidthickness + pcbthickness), material_id='pcb')
# Shield - Tx & Rx cavities
b11 = gprMax.Box(p1=(x + 0.032, y + 0.022, z + skidthickness),
p2=(x + 0.032 + cavitysize[0], y + 0.022 + cavitysize[1],
z + skidthickness + cavitysize[2]), material_id='pec')
b12 = gprMax.Box(p1=(x + 0.032 + cavitythickness, y + 0.022 + cavitythickness,
z + skidthickness), p2=(x + 0.032 + cavitysize[0] - cavitythickness,
y + 0.022 + cavitysize[1] - cavitythickness,
z + skidthickness + cavitysize[2]), material_id='absorber')
b13 = gprMax.Box(p1=(x + 0.108, y + 0.022, z + skidthickness),
p2=(x + 0.108 + cavitysize[0], y + 0.022 + cavitysize[1],
z + skidthickness + cavitysize[2]), material_id='pec')
b14 = gprMax.Box(p1=(x + 0.108 + cavitythickness, y + 0.022 + cavitythickness,
z + skidthickness), p2=(x + 0.108 + cavitysize[0] - cavitythickness,
y + 0.022 + cavitysize[1] - cavitythickness,
z + skidthickness + cavitysize[2]), material_id='free_space')
# Shield - Tx & Rx cavities - joining strips
b15 = gprMax.Box(p1=(x + 0.032 + cavitysize[0], y + 0.022 + cavitysize[1] - 0.006,
z + skidthickness + cavitysize[2] - casethickness),
p2=(x + 0.108, y + 0.022 + cavitysize[1],
z + skidthickness + cavitysize[2]), material_id='pec')
b16 = gprMax.Box(p1=(x + 0.032 + cavitysize[0], y + 0.022,
z + skidthickness + cavitysize[2] - casethickness),
p2=(x + 0.108, y + 0.022 + 0.006,
z + skidthickness + cavitysize[2]), material_id='pec')
# PCB - replace bits chopped by TX & Rx cavities
b17 = gprMax.Box(p1=(x + 0.032 + cavitythickness, y + 0.022 + cavitythickness,
z + skidthickness), p2=(x + 0.032 + cavitysize[0] - cavitythickness,
y + 0.022 + cavitysize[1] - cavitythickness,
z + skidthickness + pcbthickness), material_id='pcb')
b18 = gprMax.Box(p1=(x + 0.108 + cavitythickness, y + 0.022 + cavitythickness,
z + skidthickness), p2=(x + 0.108 + cavitysize[0] - cavitythickness,
y + 0.022 + cavitysize[1] - cavitythickness,
z + skidthickness + pcbthickness), material_id='pcb')
scene_objects.extend((b10, b11, b12, b13, b14, b15, b16, b17, b18))
# PCB components
# Tx bowtie
if resolution == 0.001:
t1 = gprMax.Triangle(p1=(tx[0], tx[1] - 0.001, tx[2]),
p2=(tx[0] - 0.026, tx[1] - bowtieheight - 0.001, tx[2]),
p3=(tx[0] + 0.026, tx[1] - bowtieheight - 0.001, tx[2]),
thickness=0, material_id='pec')
e1 = gprMax.Edge(p1=(tx[0], tx[1] - 0.001, tx[2]),
p2=(tx[0], tx[1], tx[2]), material_id='pec')
t2 = gprMax.Triangle(p1=(tx[0], tx[1] + 0.002, tx[2]),
p2=(tx[0] - 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
p3=(tx[0] + 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
thickness=0, material_id='pec')
e2 = gprMax.Edge(p1=(tx[0], tx[1] + 0.001, tx[2]),
p2=(tx[0], tx[1] + 0.002, tx[2]), material_id='pec')
scene_objects.extend((t1, t2, e1, e2))
elif resolution == 0.002:
t1 = gprMax.Triangle(p1=(tx[0], tx[1], tx[2]),
p2=(tx[0] - 0.026, tx[1] - bowtieheight, tx[2]),
p3=(tx[0] + 0.026, tx[1] - bowtieheight, tx[2]),
thickness=0, material_id='pec')
t2 = gprMax.Triangle(p1=(tx[0], tx[1] + 0.002, tx[2]),
p2=(tx[0] - 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
p3=(tx[0] + 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
thickness=0, material_id='pec')
scene_objects.extend((t1, t2))
# Rx bowtie
if resolution == 0.001:
t3 = gprMax.Triangle(p1=(tx[0] + 0.076, tx[1] - 0.001, tx[2]),
p2=(tx[0] + 0.076 - 0.026, tx[1] - bowtieheight - 0.001, tx[2]),
p3=(tx[0] + 0.076 + 0.026, tx[1] - bowtieheight - 0.001, tx[2]),
thickness=0, material_id='pec')
e3 = gprMax.Edge(p1=(tx[0] + 0.076, tx[1] - 0.001, tx[2]),
p2=(tx[0] + 0.076, tx[1], tx[2]), material_id='pec')
t4 = gprMax.Triangle(p1=(tx[0] + 0.076, tx[1] + 0.002, tx[2]),
p2=(tx[0] + 0.076 - 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
p3=(tx[0] + 0.076 + 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
thickness=0, material_id='pec')
e4 = gprMax.Edge(p1=(tx[0] + 0.076, tx[1] + 0.001, tx[2]),
p2=(tx[0] + 0.076, tx[1] + 0.002, tx[2]), material_id='pec')
scene_objects.extend((t3, e3, t4, e4))
elif resolution == 0.002:
t3 = gprMax.Triangle(p1=(tx[0] + 0.076, tx[1], tx[2]),
p2=(tx[0] + 0.076 - 0.026, tx[1] - bowtieheight, tx[2]),
p3=(tx[0] + 0.076 + 0.026, tx[1] - bowtieheight, tx[2]),
thickness=0, material_id='pec')
t4 = gprMax.Triangle(p1=(tx[0] + 0.076, tx[1] + 0.002, tx[2]),
p2=(tx[0] + 0.076 - 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
p3=(tx[0] + 0.076 + 0.026, tx[1] + bowtieheight + 0.002, tx[2]),
thickness=0, material_id='pec')
scene_objects.extend((t3, t4))
# Tx surface mount resistors (lower y coordinate)
if resolution == 0.001:
e5 = gprMax.Edge(p1=(tx[0] - 0.023, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023, tx[1] - bowtieheight - dy, tx[2]),
material_id='txreslower')
e6 = gprMax.Edge(p1=(tx[0] - 0.023 + dx, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023 + dx, tx[1] - bowtieheight - dy, tx[2]),
material_id='txreslower')
e7 = gprMax.Edge(p1=(tx[0], tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0], tx[1] - bowtieheight - dy, tx[2]),
material_id='txreslower')
e8 = gprMax.Edge(p1=(tx[0] + dx, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + dx, tx[1] - bowtieheight - dy, tx[2]),
material_id='txreslower')
e9 = gprMax.Edge(p1=(tx[0] + 0.022, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.022, tx[1] - bowtieheight - dy, tx[2]),
material_id='txreslower')
e10 = gprMax.Edge(p1=(tx[0] + 0.022 + dx, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.022 + dx, tx[1] - bowtieheight - dy, tx[2]),
material_id='txreslower')
scene_objects.extend((e5, e6, e7, e8, e9, e10))
elif resolution == 0.002:
e5 = gprMax.Edge(p1=(tx[0] - 0.023, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023, tx[1] - bowtieheight, tx[2]),
material_id='txreslower')
e6 = gprMax.Edge(p1=(tx[0] - 0.023 + dx, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023 + dx, tx[1] - bowtieheight, tx[2]),
material_id='txreslower')
e7 = gprMax.Edge(p1=(tx[0], tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0], tx[1] - bowtieheight, tx[2]),
material_id='txreslower')
e8 = gprMax.Edge(p1=(tx[0] + dx, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + dx, tx[1] - bowtieheight, tx[2]),
material_id='txreslower')
e9 = gprMax.Edge(p1=(tx[0] + 0.020, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.020, tx[1] - bowtieheight, tx[2]),
material_id='txreslower')
e10 = gprMax.Edge(p1=(tx[0] + 0.020 + dx, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.020 + dx, tx[1] - bowtieheight, tx[2]),
material_id='txreslower')
scene_objects.extend((e5, e6, e7, e8, e9, e10))
# Tx surface mount resistors (upper y coordinate)
if resolution == 0.001:
e11 = gprMax.Edge(p1=(tx[0] - 0.023, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e12 = gprMax.Edge(p1=(tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e13 = gprMax.Edge(p1=(tx[0], tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0], tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e14 = gprMax.Edge(p1=(tx[0] + dx, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + dx, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e15 = gprMax.Edge(p1=(tx[0] + 0.022, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.022, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e16 = gprMax.Edge(p1=(tx[0] + 0.022 + dx, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.022 + dx, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
scene_objects.extend((e11, e12, e13, e14, e15, e16))
elif resolution == 0.002:
e11 = gprMax.Edge(p1=(tx[0] - 0.023, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e12 = gprMax.Edge(p1=(tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e13 = gprMax.Edge(p1=(tx[0], tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0], tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e14 = gprMax.Edge(p1=(tx[0] + dx, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + dx, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e15 = gprMax.Edge(p1=(tx[0] + 0.020, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.020, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
e16 = gprMax.Edge(p1=(tx[0] + 0.020 + dx, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.020 + dx, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='txresupper')
scene_objects.extend((e11, e12, e13, e14, e15, e16))
# Rx surface mount resistors (lower y coordinate)
if resolution == 0.001:
e17 = gprMax.Edge(p1=(tx[0] - 0.023 + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023 + 0.076, tx[1] - bowtieheight - dy, tx[2]),
material_id='rxreslower')
e18 = gprMax.Edge(p1=(tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight - dy, tx[2]),
material_id='rxreslower')
e19 = gprMax.Edge(p1=(tx[0] + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.076, tx[1] - bowtieheight - dy, tx[2]),
material_id='rxreslower')
e20 = gprMax.Edge(p1=(tx[0] + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + dx + 0.076, tx[1] - bowtieheight - dy, tx[2]),
material_id='rxreslower')
e21 = gprMax.Edge(p1=(tx[0] + 0.022 + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.022 + 0.076, tx[1] - bowtieheight - dy, tx[2]),
material_id='rxreslower')
e22 = gprMax.Edge(p1=(tx[0] + 0.022 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.022 + dx + 0.076, tx[1] - bowtieheight - dy, tx[2]),
material_id='rxreslower')
scene_objects.extend((e17, e18, e19, e20, e21, e22))
elif resolution == 0.002:
e17 = gprMax.Edge(p1=(tx[0] - 0.023 + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023 + 0.076, tx[1] - bowtieheight, tx[2]),
material_id='rxreslower')
e18 = gprMax.Edge(p1=(tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight, tx[2]),
material_id='rxreslower')
e19 = gprMax.Edge(p1=(tx[0] + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.076, tx[1] - bowtieheight, tx[2]),
material_id='rxreslower')
e20 = gprMax.Edge(p1=(tx[0] + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + dx + 0.076, tx[1] - bowtieheight, tx[2]),
material_id='rxreslower')
e21 = gprMax.Edge(p1=(tx[0] + 0.020 + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.020 + 0.076, tx[1] - bowtieheight, tx[2]),
material_id='rxreslower')
e22 = gprMax.Edge(p1=(tx[0] + 0.020 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2]),
p2=(tx[0] + 0.020 + dx + 0.076, tx[1] - bowtieheight, tx[2]),
material_id='rxreslower')
scene_objects.extend((e17, e18, e19, e20, e21, e22))
# Rx surface mount resistors (upper y coordinate)
if resolution == 0.001:
e23 = gprMax.Edge(p1=(tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e24 = gprMax.Edge(p1=(tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e25 = gprMax.Edge(p1=(tx[0] + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e26 = gprMax.Edge(p1=(tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e27 = gprMax.Edge(p1=(tx[0] + 0.022 + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.022 + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e28 = gprMax.Edge(p1=(tx[0] + 0.022 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.022 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
scene_objects.extend((e23, e24, e25, e26, e27, e28))
elif resolution == 0.002:
e23 = gprMax.Edge(p1=(tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e24 = gprMax.Edge(p1=(tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e25 = gprMax.Edge(p1=(tx[0] + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e26 = gprMax.Edge(p1=(tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e27 = gprMax.Edge(p1=(tx[0] + 0.020 + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.020 + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
e28 = gprMax.Edge(p1=(tx[0] + 0.020 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2]),
p2=(tx[0] + 0.020 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2]),
material_id='rxresupper')
scene_objects.extend((e23, e24, e25, e26, e27, e28))
# Skid
b19 = gprMax.Box(p1=(x, y, z), p2=(x + casesize[0], y + casesize[1],
z + polypropylenethickness), material_id='polypropylene')
b20 = gprMax.Box(p1=(x, y, z + polypropylenethickness),
p2=(x + casesize[0], y + casesize[1],
z + polypropylenethickness + hdpethickness),
material_id='hdpe')
scene_objects.extend((b19, b20))
# Excitation
w2 = gprMax.Waveform(wave_type='gaussian', amp=1, freq=excitationfreq, id='my_gaussian')
scene_objects.append(w2)
vs1 = gprMax.VoltageSource(polarisation='y', p1=(tx[0], tx[1], tx[2]),
resistance=sourceresistance, waveform_id='my_gaussian')
scene_objects.append(vs1)
# Output point - receiver bowtie
r1 = gprMax.Rx(p1=(tx[0] + 0.076, tx[1], tx[2]), id='rxbowtie', outputs='Ey')
scene_objects.append(r1)
# Geometry views
gv1 = gprMax.GeometryView(p1=(x - dx, y - dy, z - dz), p2=(x + casesize[0] + dx,
y + casesize[1] + dy, z + skidthickness + casesize[2] + dz),
dl=(dx, dy, dz), filename='antenna_like_MALA_1200',
output_type='n')
gv2 = gprMax.GeometryView(p1=(x, y, z), p2=(x + casesize[0], y + casesize[1], z + 0.010),
dl=(dx, dy, dz), filename='antenna_like_MALA_1200_pcb',
output_type='f')
scene_objects.extend((gv1, gv2))
return scene_objects