kicad/pcb_calculator/transline/coax.h

60 lines
1.9 KiB
C++

/*
* coax.h - coaxial class definition
*
* Copyright (C) 2001 Gopal Narayanan <gopal@astro.umass.edu>
* Copyright (C) 2005 Stefan Jahn <stefan@lkcc.org>
* Modifications 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 __COAX_H
#define __COAX_H
class COAX : public TRANSLINE
{
public: COAX();
private:
double mur; // magnetic permeability of substrate
double din; // Inner diameter of cable
double dout; // Outer diameter of cable
double l; // Length of cable
double Z0; // characteristic impedance
double ang_l; // Electrical length in angle
double atten_dielectric; // Loss in dielectric (dB)
double atten_cond; // Loss in conductors (dB)
double fc; // Cutoff frequency for higher order modes
public:
void analyze() override;
void synthesize() override;
private:
void get_coax_sub();
void get_coax_comp();
void get_coax_phys();
void get_coax_elec();
void fixdin();
void fixdout();
double alphad_coax();
double alphac_coax();
void show_results();
};
#endif // __COAX_H