Retrodirective beams and their application to low sidelobe pattern synthesis in small planar phased arrays

This is an Asiatic–Pacific Campaign Medal which was given to those who served in the U.S. Armed Forces for at least 30 days in the Asiatic-Pacific Theater during World War II (1941 - 1946). The award was first issued as a ribbon in 1942 but in 1947 the medal version seen here was issued. The first of these was issued to General Douglas MacArthur.https://digitalcommons.molloy.edu/nur_hagan/1744/thumbnail.jp