54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
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/*
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* twistedpair.h - twisted pair class definition
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*
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* Copyright (C) 2011 Michael Margraf <michael.margraf@alumni.tu-berlin.de>
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* Modifications 2011 for Kicad: 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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*/
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#ifndef __TWISTEDPAIR_H
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#define __TWISTEDPAIR_H
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class TWISTEDPAIR : public TRANSLINE
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{
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public: TWISTEDPAIR();
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private:
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double din; /* Inner diameter of conductor */
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double dout; /* Outer diameter of insulator */
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double twists; /* Twists per length */
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double er_env; /* dielectric constant of environment*/
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double len; /* Length of cable */
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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; /* Effective dielectric constant */
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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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public:
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void analyze();
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void synthesize();
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private:
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void calc();
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void show_results();
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void getProperties();
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};
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#endif
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