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66ff406a060b9986eef35dbb43f8b59e8c5e742e
gprMax/user_libs/antennas/MALA.py
Craig Warren 66ff406a06 Updated copyright year
2023-03-24 11:50:02 +00:00

235 行
20 KiB
Python
原始文件 Blame 文件历史

# Copyright (C) 2015-2023, 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 os
from gprMax.exceptions import CmdInputError
from gprMax.input_cmd_funcs import *
userlibdir = os.path.dirname(os.path.abspath(__file__))
def antenna_like_MALA_1200(x, y, z, resolution=0.001, rotate90=False):
"""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.
rotate90 (bool): Rotate model 90 degrees CCW in xy plane.
"""
# 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
# Set origin for rotation to geometric centre of antenna in x-y plane if required, and set output component for receiver
if rotate90:
rotate90origin = (x, y)
output = 'Ex'
else:
rotate90origin = ()
output = 'Ey'
# 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:
raise CmdInputError('This antenna module can only be used with a spatial resolution of 1mm or 2mm')
# 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
material(absorberEr, absorbersig, 1, 0, 'absorber')
material(3, 0, 1, 0, 'pcb')
material(2.35, 0, 1, 0, 'hdpe')
material(2.26, 0, 1, 0, 'polypropylene')
material(3, txsiglower, 1, 0, 'txreslower')
material(3, txsigupper, 1, 0, 'txresupper')
material(3, rxsiglower, 1, 0, 'rxreslower')
material(3, rxsigupper, 1, 0, 'rxresupper')
# Antenna geometry
# Shield - metallic enclosure
box(x, y, z + skidthickness, x + casesize[0], y + casesize[1], z + skidthickness + casesize[2], 'pec', rotate90origin=rotate90origin)
box(x + 0.020, y + casethickness, z + skidthickness, x + 0.100, y + casesize[1] - casethickness, z + skidthickness + casethickness, 'free_space', rotate90origin=rotate90origin)
box(x + 0.100, y + casethickness, z + skidthickness, x + casesize[0] - casethickness, y + casesize[1] - casethickness, z + skidthickness + casethickness, 'free_space', rotate90origin=rotate90origin)
# Absorber material
box(x + 0.020, y + casethickness, z + skidthickness, x + 0.100, y + casesize[1] - casethickness, z + skidthickness + casesize[2] - casethickness, 'absorber', rotate90origin=rotate90origin)
box(x + 0.100, y + casethickness, z + skidthickness, x + casesize[0] - casethickness, y + casesize[1] - casethickness, z + skidthickness + casesize[2] - casethickness, 'absorber', rotate90origin=rotate90origin)
# Shield - cylindrical sections
cylinder(x + 0.055, y + casesize[1] - 0.008, z + skidthickness, x + 0.055, y + casesize[1] - 0.008, z + skidthickness + casesize[2] - casethickness, 0.008, 'pec', rotate90origin=rotate90origin)
cylinder(x + 0.055, y + 0.008, z + skidthickness, x + 0.055, y + 0.008, z + skidthickness + casesize[2] - casethickness, 0.008, 'pec', rotate90origin=rotate90origin)
cylinder(x + 0.147, y + casesize[1] - 0.008, z + skidthickness, x + 0.147, y + casesize[1] - 0.008, z + skidthickness + casesize[2] - casethickness, 0.008, 'pec', rotate90origin=rotate90origin)
cylinder(x + 0.147, y + 0.008, z + skidthickness, x + 0.147, y + 0.008, z + skidthickness + casesize[2] - casethickness, 0.008, 'pec', rotate90origin=rotate90origin)
cylinder(x + 0.055, y + casesize[1] - 0.008, z + skidthickness, x + 0.055, y + casesize[1] - 0.008, z + skidthickness + casesize[2] - casethickness, 0.007, 'free_space', rotate90origin=rotate90origin)
cylinder(x + 0.055, y + 0.008, z + skidthickness, x + 0.055, y + 0.008, z + skidthickness + casesize[2] - casethickness, 0.007, 'free_space', rotate90origin=rotate90origin)
cylinder(x + 0.147, y + casesize[1] - 0.008, z + skidthickness, x + 0.147, y + casesize[1] - 0.008, z + skidthickness + casesize[2] - casethickness, 0.007, 'free_space', rotate90origin=rotate90origin)
cylinder(x + 0.147, y + 0.008, z + skidthickness, x + 0.147, y + 0.008, z + skidthickness + casesize[2] - casethickness, 0.007, 'free_space', rotate90origin=rotate90origin)
box(x + 0.054, y + casesize[1] - 0.016, z + skidthickness, x + 0.056, y + casesize[1] - 0.014, z + skidthickness + casesize[2] - casethickness, 'free_space', rotate90origin=rotate90origin)
box(x + 0.054, y + 0.014, z + skidthickness, x + 0.056, y + 0.016, z + skidthickness + casesize[2] - casethickness, 'free_space', rotate90origin=rotate90origin)
box(x + 0.146, y + casesize[1] - 0.016, z + skidthickness, x + 0.148, y + casesize[1] - 0.014, z + skidthickness + casesize[2] - casethickness, 'free_space', rotate90origin=rotate90origin)
box(x + 0.146, y + 0.014, z + skidthickness, x + 0.148, y + 0.016, z + skidthickness + casesize[2] - casethickness, 'free_space', rotate90origin=rotate90origin)
# PCB
box(x + 0.020, y + 0.018, z + skidthickness, x + casesize[0] - casethickness, y + casesize[1] - 0.018, z + skidthickness + pcbthickness, 'pcb', rotate90origin=rotate90origin)
# Shield - Tx & Rx cavities
box(x + 0.032, y + 0.022, z + skidthickness, x + 0.032 + cavitysize[0], y + 0.022 + cavitysize[1], z + skidthickness + cavitysize[2], 'pec', rotate90origin=rotate90origin)
box(x + 0.032 + cavitythickness, y + 0.022 + cavitythickness, z + skidthickness, x + 0.032 + cavitysize[0] - cavitythickness, y + 0.022 + cavitysize[1] - cavitythickness, z + skidthickness + cavitysize[2], 'absorber', rotate90origin=rotate90origin)
box(x + 0.108, y + 0.022, z + skidthickness, x + 0.108 + cavitysize[0], y + 0.022 + cavitysize[1], z + skidthickness + cavitysize[2], 'pec', rotate90origin=rotate90origin)
box(x + 0.108 + cavitythickness, y + 0.022 + cavitythickness, z + skidthickness, x + 0.108 + cavitysize[0] - cavitythickness, y + 0.022 + cavitysize[1] - cavitythickness, z + skidthickness + cavitysize[2], 'free_space', rotate90origin=rotate90origin)
# Shield - Tx & Rx cavities - joining strips
box(x + 0.032 + cavitysize[0], y + 0.022 + cavitysize[1] - 0.006, z + skidthickness + cavitysize[2] - casethickness, x + 0.108, y + 0.022 + cavitysize[1], z + skidthickness + cavitysize[2], 'pec', rotate90origin=rotate90origin)
box(x + 0.032 + cavitysize[0], y + 0.022, z + skidthickness + cavitysize[2] - casethickness, x + 0.108, y + 0.022 + 0.006, z + skidthickness + cavitysize[2], 'pec', rotate90origin=rotate90origin)
# PCB - replace bits chopped by TX & Rx cavities
box(x + 0.032 + cavitythickness, y + 0.022 + cavitythickness, z + skidthickness, x + 0.032 + cavitysize[0] - cavitythickness, y + 0.022 + cavitysize[1] - cavitythickness, z + skidthickness + pcbthickness, 'pcb', rotate90origin=rotate90origin)
box(x + 0.108 + cavitythickness, y + 0.022 + cavitythickness, z + skidthickness, x + 0.108 + cavitysize[0] - cavitythickness, y + 0.022 + cavitysize[1] - cavitythickness, z + skidthickness + pcbthickness, 'pcb', rotate90origin=rotate90origin)
# PCB components
# Tx bowtie
if resolution == 0.001:
triangle(tx[0], tx[1] - 0.001, tx[2], tx[0] - 0.026, tx[1] - bowtieheight - 0.001, tx[2], tx[0] + 0.026, tx[1] - bowtieheight - 0.001, tx[2], 0, 'pec', rotate90origin=rotate90origin)
edge(tx[0], tx[1] - 0.001, tx[2], tx[0], tx[1], tx[2], 'pec', rotate90origin=rotate90origin)
triangle(tx[0], tx[1] + 0.002, tx[2], tx[0] - 0.026, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.026, tx[1] + bowtieheight + 0.002, tx[2], 0, 'pec', rotate90origin=rotate90origin)
edge(tx[0], tx[1] + 0.001, tx[2], tx[0], tx[1] + 0.002, tx[2], 'pec', rotate90origin=rotate90origin)
elif resolution == 0.002:
triangle(tx[0], tx[1], tx[2], tx[0] - 0.026, tx[1] - bowtieheight, tx[2], tx[0] + 0.026, tx[1] - bowtieheight, tx[2], 0, 'pec', rotate90origin=rotate90origin)
triangle(tx[0], tx[1] + 0.002, tx[2], tx[0] - 0.026, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.026, tx[1] + bowtieheight + 0.002, tx[2], 0, 'pec', rotate90origin=rotate90origin)
# Rx bowtie
if resolution == 0.001:
triangle(tx[0] + 0.076, tx[1] - 0.001, tx[2], tx[0] + 0.076 - 0.026, tx[1] - bowtieheight - 0.001, tx[2], tx[0] + 0.076 + 0.026, tx[1] - bowtieheight - 0.001, tx[2], 0, 'pec', rotate90origin=rotate90origin)
edge(tx[0] + 0.076, tx[1] - 0.001, tx[2], tx[0] + 0.076, tx[1], tx[2], 'pec', rotate90origin=rotate90origin)
triangle(tx[0] + 0.076, tx[1] + 0.002, tx[2], tx[0] + 0.076 - 0.026, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.076 + 0.026, tx[1] + bowtieheight + 0.002, tx[2], 0, 'pec', rotate90origin=rotate90origin)
edge(tx[0] + 0.076, tx[1] + 0.001, tx[2], tx[0] + 0.076, tx[1] + 0.002, tx[2], 'pec', rotate90origin=rotate90origin)
elif resolution == 0.002:
triangle(tx[0] + 0.076, tx[1], tx[2], tx[0] + 0.076 - 0.026, tx[1] - bowtieheight, tx[2], tx[0] + 0.076 + 0.026, tx[1] - bowtieheight, tx[2], 0, 'pec', rotate90origin=rotate90origin)
triangle(tx[0] + 0.076, tx[1] + 0.002, tx[2], tx[0] + 0.076 - 0.026, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.076 + 0.026, tx[1] + bowtieheight + 0.002, tx[2], 0, 'pec', rotate90origin=rotate90origin)
# Tx surface mount resistors (lower y coordinate)
if resolution == 0.001:
edge(tx[0] - 0.023, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023, tx[1] - bowtieheight - dy, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023 + dx, tx[1] - bowtieheight - dy, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0], tx[1] - bowtieheight - 0.004, tx[2], tx[0], tx[1] - bowtieheight - dy, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] + dx, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + dx, tx[1] - bowtieheight - dy, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.022, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.022, tx[1] - bowtieheight - dy, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.022 + dx, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.022 + dx, tx[1] - bowtieheight - dy, tx[2], 'txreslower', rotate90origin=rotate90origin)
elif resolution == 0.002:
edge(tx[0] - 0.023, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023, tx[1] - bowtieheight, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023 + dx, tx[1] - bowtieheight, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0], tx[1] - bowtieheight - 0.004, tx[2], tx[0], tx[1] - bowtieheight, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] + dx, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + dx, tx[1] - bowtieheight, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.020, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.020, tx[1] - bowtieheight, tx[2], 'txreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.020 + dx, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.020 + dx, tx[1] - bowtieheight, tx[2], 'txreslower', rotate90origin=rotate90origin)
# Tx surface mount resistors (upper y coordinate)
if resolution == 0.001:
edge(tx[0] - 0.023, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0], tx[1] + bowtieheight + 0.002, tx[2], tx[0], tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] + dx, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + dx, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.022, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.022, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.022 + dx, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.022 + dx, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
elif resolution == 0.002:
edge(tx[0] - 0.023, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023 + dx, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0], tx[1] + bowtieheight + 0.002, tx[2], tx[0], tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] + dx, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + dx, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.020, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.020, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.020 + dx, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.020 + dx, tx[1] + bowtieheight + 0.006, tx[2], 'txresupper', rotate90origin=rotate90origin)
# Rx surface mount resistors (lower y coordinate)
if resolution == 0.001:
edge(tx[0] - 0.023 + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023 + 0.076, tx[1] - bowtieheight - dy, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight - dy, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.076, tx[1] - bowtieheight - dy, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + dx + 0.076, tx[1] - bowtieheight - dy, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.022 + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.022 + 0.076, tx[1] - bowtieheight - dy, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.022 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.022 + dx + 0.076, tx[1] - bowtieheight - dy, tx[2], 'rxreslower', rotate90origin=rotate90origin)
elif resolution == 0.002:
edge(tx[0] - 0.023 + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023 + 0.076, tx[1] - bowtieheight, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] - 0.023 + dx + 0.076, tx[1] - bowtieheight, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.076, tx[1] - bowtieheight, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + dx + 0.076, tx[1] - bowtieheight, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.020 + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.020 + 0.076, tx[1] - bowtieheight, tx[2], 'rxreslower', rotate90origin=rotate90origin)
edge(tx[0] + 0.020 + dx + 0.076, tx[1] - bowtieheight - 0.004, tx[2], tx[0] + 0.020 + dx + 0.076, tx[1] - bowtieheight, tx[2], 'rxreslower', rotate90origin=rotate90origin)
# Rx surface mount resistors (upper y coordinate)
if resolution == 0.001:
edge(tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.022 + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.022 + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.022 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.022 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
elif resolution == 0.002:
edge(tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023 + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] - 0.023 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.020 + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.020 + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
edge(tx[0] + 0.020 + dx + 0.076, tx[1] + bowtieheight + 0.002, tx[2], tx[0] + 0.020 + dx + 0.076, tx[1] + bowtieheight + 0.006, tx[2], 'rxresupper', rotate90origin=rotate90origin)
# Skid
box(x, y, z, x + casesize[0], y + casesize[1], z + polypropylenethickness, 'polypropylene', rotate90origin=rotate90origin)
box(x, y, z + polypropylenethickness, x + casesize[0], y + casesize[1], z + polypropylenethickness + hdpethickness, 'hdpe', rotate90origin=rotate90origin)
# Geometry views
# geometry_view(x - dx, y - dy, z - dz, x + casesize[0] + dx, y + casesize[1] + dy, z + casesize[2] + skidthickness + dz, dx, dy, dz, 'antenna_like_MALA_1200')
# geometry_view(x, y, z, x + casesize[0], y + casesize[1], z + 0.010, dx, dy, dz, 'antenna_like_MALA_1200_pcb', type='f')
# Excitation
print('#waveform: gaussian 1.0 {} myGaussian'.format(excitationfreq))
voltage_source('y', tx[0], tx[1], tx[2], sourceresistance, 'myGaussian', dxdy=(resolution, resolution), rotate90origin=rotate90origin)
# Output point - receiver bowtie
rx(tx[0] + 0.076, tx[1], tx[2], identifier='rxbowtie', to_save=[output], polarisation='y', dxdy=(resolution, resolution), rotate90origin=rotate90origin)
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