Contributions to the Antenna Field during World War II

During World War II intensive efforts of radio engineers and physicists resulted in the invention of many new types of antennas and in advances in fundamental antenna theory. The paper presents the results of this work in relation to the principal problem areas that were recognized during that period: 1) sidelobe suppression; 2) beam-shaping techniques; 3) beam-scanning techniques; 4) broadbanding; 5) antenna siting. In each of these areas major advances were made, both in operating hardware and in theoretical understanding.