EllipticFilter.h

/*
 *  Copyright (C) 2019-2025 Andrés Martínez Mera - andresmmera@protonmail.com
 *
 *  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 3 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 program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef ELLIPTICFILTER_H
#define ELLIPTICFILTER_H
 
#include "../../Schematic/Network.h"
#include "../../Schematic/component.h"
#include "../TransmissionLineSynthesis/Microstrip.h"
 
class ComponentInfo;
class WireInfo;
 
class EllipticFilter : public Network {
public:
  EllipticFilter();
  EllipticFilter(FilterSpecifications);
  virtual ~EllipticFilter();
  void synthesize();
  void setSemilumpedMode(bool);
 
private:
  struct FilterSpecifications Specification;
 
  std::vector<double>*Cseries_LP, *Lseries_LP,
      *Cshunt_LP;          // Elliptic network parameters
  double RL;               // Load resistance
  bool semilumped = false; // Activate semilumped implementation mode
  unsigned int virtual_nodes;
 
  // Lowpass prototype
  void EllipticTypeS();
  void EllipticTypesABC();
  double Sn(double, double);
  std::complex<double> Sn(double, std::complex<double>);
 
  //***********  Schematic synthesis ********************
  void SynthesizeEllipticFilter();
  void InsertEllipticSection(int&, QMap<QString, unsigned int>&, int, bool,
                             bool);
 
  void Insert_LowpassMinL_Section(int&, QMap<QString, unsigned int>&,
                                  unsigned int, bool, bool);
  void Insert_HighpassMinC_Section(int&, QMap<QString, unsigned int>&,
                                   unsigned int, bool, bool);
 
  void Insert_LowpassMinC_Section(int&, QMap<QString, unsigned int>&,
                                  unsigned int, bool, bool);
  void Insert_HighpassMinL_Section(int&, QMap<QString, unsigned int>&,
                                   unsigned int, bool, bool);
  void Insert_LowpassSemilumpedMinC_Section(int&, QMap<QString, unsigned int>&,
                                            unsigned int, bool, bool);
  void Insert_HighpassSemilumpedMinL_Section(int&, QMap<QString, unsigned int>&,
                                             unsigned int, bool, bool);
 
  void Insert_Bandpass_1_Section(int&, QMap<QString, unsigned int>&,
                                 unsigned int, bool, bool);
  void Insert_Bandpass_2_Section(int&, QMap<QString, unsigned int>&,
                                 unsigned int, bool, bool);
 
  void Insert_Bandstop_1_Section(int&, QMap<QString, unsigned int>&,
                                 unsigned int, bool, bool);
  void Insert_Bandstop_2_Section(int&, QMap<QString, unsigned int>&,
                                 unsigned int, bool, bool);
};
#endif