From 476af5cafca668ef50e17d64914e2bb7d13fada6 Mon Sep 17 00:00:00 2001
From: Vadim Kuznetsov <ra3xdh@gmail.com>
Date: Tue, 3 Sep 2024 16:03:40 +0300
Subject: [PATCH 1/3] Add simple TR model for mscorner

---
 src/components/microstrip/mscorner.cpp | 5 +++++
 src/components/microstrip/mscorner.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/components/microstrip/mscorner.cpp b/src/components/microstrip/mscorner.cpp
index 8361815d..7980972b 100644
--- a/src/components/microstrip/mscorner.cpp
+++ b/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)));
 }
diff --git a/src/components/microstrip/mscorner.h b/src/components/microstrip/mscorner.h
index bcacc87d..06c87761 100644
--- a/src/components/microstrip/mscorner.h
+++ b/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:

From c52e031bcc69afc8248f6453ec981294df2ef84e Mon Sep 17 00:00:00 2001
From: Vadim Kuznetsov <ra3xdh@gmail.com>
Date: Tue, 3 Sep 2024 16:20:25 +0300
Subject: [PATCH 2/3] Add simple TR model for bondwire

---
 src/components/microstrip/bondwire.cpp | 19 +++++++++++++++++++
 src/components/microstrip/bondwire.h   |  3 +++
 2 files changed, 22 insertions(+)

diff --git a/src/components/microstrip/bondwire.cpp b/src/components/microstrip/bondwire.cpp
index 246457a9..4140d0c5 100644
--- a/src/components/microstrip/bondwire.cpp
+++ b/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");
diff --git a/src/components/microstrip/bondwire.h b/src/components/microstrip/bondwire.h
index 9bb25bf9..944ba7e0 100644
--- a/src/components/microstrip/bondwire.h
+++ b/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);

From b17780c9362835e68bf2c92a5f4e70e47a18840d Mon Sep 17 00:00:00 2001
From: Vadim Kuznetsov <ra3xdh@gmail.com>
Date: Wed, 4 Sep 2024 15:34:15 +0300
Subject: [PATCH 3/3] Add simple TR model for msmbend

---
 src/components/microstrip/msmbend.cpp | 5 +++++
 src/components/microstrip/msmbend.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/components/microstrip/msmbend.cpp b/src/components/microstrip/msmbend.cpp
index 8106de0d..9b5fbf1c 100644
--- a/src/components/microstrip/msmbend.cpp
+++ b/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)));
 }
diff --git a/src/components/microstrip/msmbend.h b/src/components/microstrip/msmbend.h
index e1b9142a..0962223c 100644
--- a/src/components/microstrip/msmbend.h
+++ b/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);
 };