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