93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/*
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* microstrip.h - microstrip class definition
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*
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* Copyright (C) 2001 Gopal Narayanan <gopal@astro.umass.edu>
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* Copyright (C) 2005 Stefan Jahn <stefan@lkcc.org>
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* Modified for Kicad: 2015 jean-pierre.charras
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this package; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __MICROSTRIP_H
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#define __MICROSTRIP_H
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class MICROSTRIP : public TRANSLINE
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{
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public: MICROSTRIP();
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friend class C_MICROSTRIP;
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private:
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double h; // height of substrate
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double ht; // height to the top of box
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double t; // thickness of top metal
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double rough; // Roughness of top metal
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double mur; // magnetic permeability of substrate
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double w; // width of line
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double l; // length of line
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double Z0_0; // static characteristic impedance
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double Z0; // characteristic impedance
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double ang_l; // Electrical length in angle
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double er_eff_0; // Static effective dielectric constant
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double er_eff; // Effective dielectric constant
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double mur_eff; // Effective mag. permeability
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double w_eff; // Effective width of line
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double atten_dielectric; // Loss in dielectric (dB)
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double atten_cond; // Loss in conductors (dB)
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// private params
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double Z0_h_1; // homogeneous stripline impedance
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public:
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void analyze() override;
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void synthesize() override;
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private:
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double er_eff_freq();
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double alpha_c();
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double alpha_c_roughness();
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double alpha_dielectric();
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double char_impedance_ht();
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double synth_width();
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double ereff_dispersion();
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double Z0_dispersion();
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double Z0_homogeneous( double );
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double delta_Z0_cover( double, double );
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double filling_factor( double, double );
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double delta_q_cover( double );
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double delta_q_thickness( double, double );
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double e_r_effective( double, double );
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double delta_u_thickness( double, double, double );
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double e_r_dispersion( double, double, double );
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double Z0_dispersion( double, double, double, double, double );
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double conductor_losses();
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double dielectric_losses();
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void microstrip_Z0();
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void dispersion();
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void attenuation();
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void mur_eff_ms();
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void line_angle();
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void calc();
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void get_microstrip_sub();
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void get_microstrip_comp();
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void get_microstrip_elec();
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void get_microstrip_phys();
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void show_results();
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};
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#endif // __MICROSTRIP_H
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