kicad/pcb_calculator/transline/coax.h

59 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>
*
* 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();
void synthesize();
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 */