PCB傳輸線S參數萃取並繪圖

 匯入brd檔，切割，設ports，模擬並繪圖。

import matplotlib.pyplot as plt
from pyaedt import Desktop, Hfss3dLayout, examples, Edb

with Desktop("2021.2", non_graphical=True):
    edb = Edb()
    edb.import_cadence_file("d:/demo/Galileo_G87173_204.brd")
    edb.core_hfss.create_coax_port_on_component(['U1B5', 'U2A5'], ['M_DQ<0>', 'M_DQ<1>'])

    edb.core_components.set_solder_ball('U1B5')
    edb.core_components.set_solder_ball('U2A5')

    edb.create_cutout(['M_DQ<0>', 'M_DQ<1>'],
                      ['GND'],
                      output_aedb_path='d:/demo/ddr.aedb',
                      open_cutout_at_end=False)
    edb.close_edb()

    h3d = Hfss3dLayout('d:/demo/ddr.aedb/edb.def')
    setup1 = h3d.create_setup('setup1')
    setup1.props['Frequency'] = '1GHz'
    h3d.create_frequency_sweep('setup1', 'GHz', 0, 1, 11)
    setup1.update()

    h3d.analyze_all()
    h3d.save_project()

    for i in ["dB(S(4,1))", "dB(S(3,2))"]:
        f, m = [], []
        x = h3d.post.get_report_data(i)

        for freq in x.solutions_data_mag[i]:
            mag = x.solutions_data_mag[i][freq]
            f.append(freq[0])
            m.append(-mag)

        plt.plot(f, m)

plt.grid()
plt.xlabel('Freq')
plt.ylabel('mag(dB)')
plt.show()