This video lesson describes what happens when the load is not matched with the transmission line. This mismatch results in a portion of the wave being reflected as a backward wave at the load. This lesson is part of the Ansys Innovation Course: Transmission Line Theory. To access this and all of our free, online courses — featuring additional videos, quizzes and handouts — visit Ansys Innovation Courses at www.ansys.com/courses. This course was created for Ansys Innovation Courses by Kathryn Leigh Smith, Assistant Professor, UNC-Charlotte in partnership with Ansys.