Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sha Kokusho and Suzuki Michiya and Adachi Saburo,The Cosec2-Beam Horn Antenna with Double-Hyperbolic Nonplanar Apertures,The Journal of the Institute of Television Engineers of Japan,03866831,The Institute of Image Information and Television Engineers,1981,35,6,483-488_1,https://cir.nii.ac.jp/crid/1390282680075157888,https://doi.org/10.3169/itej1978.35.483