After the war, he received an Sc.D., also from MIT, in 1947; his thesis, entitled "Theoretical Limitations on the Broadband Matching of Arbitrary Impedances", was supervised by Ernst Guillemin.
После этого он проработал шесть лет в лаборатории Radiation Laboratory МИТ, а в 1947 году защитил диссертацию на звание доктора ("Theoretical Limitations on the Broadband Matching of Arbitrary Impedances").