An ultra-wideband 3 x 3 Butler matrix with unique Vivaldi array structure for high-range resolution radars
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Vol. 32, No. 5, Mayıs 2022, s. 1-6, ISSN: 1096-4290
KARAMZADEH SAEİD, RAFIEI VAHID, KARTAL MESUT