Simple TRAN models for mscorner, msmbend and bonwire

src/components/microstrip/bondwire.cpp

@@ -386,6 +386,11 @@ void bondwire::initDC (void) {
   }
 }
 
+void bondwire::initTR (void)
+{
+  initDC();
+}
+
 /*! Initialize AC simulation. */
 void bondwire::initAC (void) {
   getProperties ();
@@ -400,6 +405,20 @@ void bondwire::calcAC (const nr_double_t frequency) {
   setMatrixY (calcMatrixY (frequency));
 }
 
+void bondwire::calcDC(void)
+{
+  if (rho != 0.0) {
+    nr_double_t g = 1.0 / resistance (0);
+    setY (NODE_1, NODE_1, +g); setY (NODE_2, NODE_2, +g);
+    setY (NODE_1, NODE_2, -g); setY (NODE_2, NODE_1, -g);
+  }
+}
+
+void bondwire::calcTR(nr_double_t t)
+{
+  calcDC();
+}
+
 void bondwire::calcNoiseSP (nr_double_t) {
   // calculate noise correlation matrix
   nr_double_t T = getPropertyDouble ("Temp");

src/components/microstrip/bondwire.h

@@ -36,7 +36,10 @@ class bondwire : public qucs::circuit
   void calcNoiseSP (nr_double_t);
   void initDC (void);
   void initAC (void);
+  void initTR (void);
+  void calcDC (void);
   void calcAC (nr_double_t);
+  void calcTR (nr_double_t);
   void calcNoiseAC (nr_double_t);
   qucs::matrix calcMatrixY (nr_double_t);
   void saveCharacteristics (nr_double_t);

src/components/microstrip/mscorner.cpp

@@ -105,6 +105,11 @@ void mscorner::initAC (void) {
   initCheck ();
 }
 
+void mscorner::initTR(void)
+{
+  initDC();
+}
+
 void mscorner::calcAC (nr_double_t frequency) {
   setMatrixY (ztoy (calcMatrixZ (frequency)));
 }

src/components/microstrip/mscorner.h

@@ -34,6 +34,7 @@ class mscorner : public qucs::circuit
   void initSP (void);
   void initDC (void);
   void initAC (void);
+  void initTR (void);
   void calcAC (nr_double_t);
 
  private:

src/components/microstrip/msmbend.cpp

@@ -99,6 +99,11 @@ void msmbend::initAC (void) {
   allocMatrixMNA ();
 }
 
+void msmbend::initTR (void)
+{
+  initDC();
+}
+
 void msmbend::calcAC (nr_double_t frequency) {
   setMatrixY (ztoy (calcMatrixZ (frequency)));
 }

src/components/microstrip/msmbend.h

@@ -33,6 +33,7 @@ class msmbend : public qucs::circuit
   void calcSP (nr_double_t);
   void initDC (void);
   void initAC (void);
+  void initTR (void);
   void calcAC (nr_double_t);
   qucs::matrix calcMatrixZ (nr_double_t);
 };