In Memoriam: Hans Joachim Liebe

Hans Joachim Liebe, an internationally recognized expert in radiowave physics, and developer of the widely-used Millimeter-wave Propagation Model (MPM), passed away peacefully on August 2, 2012, after a long and courageous battle with Parkinson's disease. He was the son of Margarete and Fritz Liebe, and was born in Insterburg, East Prussia, Germany, on January 21, 1934. He married Roswita Borgwardt in 1963, and they were married 49 years. In 1964, he graduated magna cum laude from the Technical University of Berlin, where he earned the PhD in Electrical Engineering. In 1965, he moved from Germany to the United States with his family.