def write_trace_footprint(stream, name, description, vertices, trace_width,
pad_size, mirror=False):
mirror = [1, -1][mirror]
text_effects = SExpression('font', [SExpression('size', [1, 1]),
SExpression('thickness', .15)])
module = SExpression('module', [name,
SExpression('layer', ['F.Cu']),
SExpression('fp_text', [identifier('reference'), 'REF**'],
[('at', [0, .5]), ('effects', text_effects), ('layer', 'F.SilkS')]),
SExpression('fp_text', [identifier('value'), name],
[('at', [0, -.5]), ('effects', text_effects),
('layer', 'F.SilkS')])])
module.children.extend(SExpression('fp_line', [], [
('start', vertices[ii]), ('end', vertices[ii + 1]), ('layer', 'F.Cu'),
('width', trace_width)]) for ii in range(len(vertices) - 1))
pad_offset = (pad_size - trace_width) / 2
module.children.append(SExpression('pad', [1, identifier('smd'),
identifier('rect')], [('at', (vertices[0][0] - pad_offset * mirror,
vertices[0][1] + pad_offset)), ('size', [pad_size, pad_size]),
('layers', 'F.Cu')]))
module.children.append(SExpression('pad', [2, identifier('smd'),
identifier('rect')], [('at', (vertices[-1][0] - pad_offset * mirror,
vertices[-1][1] - pad_offset)), ('size', [pad_size, pad_size]),
('layers', 'F.Cu')]))
module.children.append(SExpression('descr', description))
module.write_to_stream(stream)
print(' Inductance: {}H'.format(si_prefix_format(L)))
print('Resonant capacitance: {}F'.format(si_prefix_format(C)))
print(' Q: {:.1e}'.format(Q))
if args.kicad_mod is not None:
text_effects = SExpression('font', [
SExpression('size', [1, 1]),
SExpression('thickness', .15)])
module = SExpression('module', [
'PCBAntenna',
SExpression('layer', ['F.Cu']),
SExpression('fp_text', [
identifier('reference'),
'REF**'], [
('at', [0, .5]),
('effects', text_effects),
('layer', 'F.SilkS')]),
SExpression('fp_text', [
identifier('value'),
'PCBAntenna'], [
('at', [0, -.5]),
('effects', text_effects),
('layer', 'F.SilkS')])])
module.children.extend(SExpression('fp_line', [], [
('start', coil[ii]), ('end', coil[ii + 1]), ('layer', 'F.Cu'),
('width', trace_width)]) for ii in range(len(coil) - 1))
pad_offset = (pad_size - trace_width) / 2
if args.shape == 'square':
pads = [
(1, (coil[0][0] - pad_offset * args.mirror,
coil[0][1] + pad_offset),
def write_trace_footprint(stream,
name,
description,
vertices,
trace_width,
pad_size,
mirror=False):
mirror = [1, -1][mirror]
text_effects = SExpression(
'font', [SExpression('size', [1, 1]),
SExpression('thickness', .15)])
module = SExpression('module', [
name,
SExpression('layer', ['F.Cu']),
SExpression('fp_text', [identifier('reference'), 'REF**'],
[('at', [0, .5]), ('effects', text_effects),
('layer', 'F.SilkS')]),
SExpression('fp_text', [identifier('value'), name],
[('at', [0, -.5]), ('effects', text_effects),
('layer', 'F.SilkS')])
])
module.children.extend(
SExpression('fp_line', [], [('start',
vertices[ii]), ('end', vertices[ii + 1]),
('layer', 'F.Cu'), ('width', trace_width)])
for ii in range(len(vertices) - 1))
pad_offset = (pad_size - trace_width) / 2
module.children.append(
SExpression(
'pad',
[1, identifier('smd'), identifier('rect')],
[('at', (vertices[0][0] - pad_offset * mirror,
vertices[0][1] + pad_offset)),
('size', [pad_size, pad_size]), ('layers', 'F.Cu')]))
module.children.append(
SExpression(
'pad',
[2, identifier('smd'), identifier('rect')],
[('at', (vertices[-1][0] - pad_offset * mirror,
vertices[-1][1] - pad_offset)),
('size', [pad_size, pad_size]), ('layers', 'F.Cu')]))
module.children.append(SExpression('descr', description))
module.write_to_stream(stream)
L = Z.imag / angfreq
C = 1 / (angfreq * Z.imag)
Q = Z.imag / Z.real
print(
'Analysis of {}m x {}m {}-turn {}m pitch {}m trace inductor at {}Hz\n'.
format(si_prefix_format(side1 * 2e-3), si_prefix_format(side2 * 2e-3),
args.turns, si_prefix_format(pitch * 1e-3),
si_prefix_format(trace_width * 1e-3),
si_prefix_format(args.frequency)))
print(' Inductance: {}H'.format(si_prefix_format(L)))
print('Resonant capacitance: {}F'.format(si_prefix_format(C)))
print(' Q: {:.1e}'.format(Q))
if args.kicad_mod is not None:
text_effects = SExpression(
'font', [SExpression('size', [1, 1]),
SExpression('thickness', .15)])
module = SExpression('module', [
'PCBAntenna',
SExpression('layer', ['F.Cu']),
SExpression('fp_text', [identifier('reference'), 'REF**'],
[('at', [0, .5]), ('effects', text_effects),
('layer', 'F.SilkS')]),
SExpression('fp_text', [identifier('value'), 'PCBAntenna'],
[('at', [0, -.5]), ('effects', text_effects),
('layer', 'F.SilkS')])
])
module.children.extend(
SExpression('fp_line', [], [('start', coil[ii]), (
'end', coil[ii + 1]), ('layer', 'F.Cu'), ('width', trace_width)])
for ii in range(len(coil) - 1))
