TY - CPAPER AU - K., Khiem, N. AU - Nguyen, Khiem TI - SAVING MICROWAVE MATERIAL IN THE DEVELOPMENT OF DIRECTIONAL COUPLERS ON COMPACT STRUCTURES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Nano, Bio, Green and Space: Technologies for Sustainable Future PY - 2019 SP - 373 EP - 380 DO - 10.5593/sgem2019/6.1/s24.049 PB - STEF92 Technology ER -