TY - CONF T1 - Covert communication using a directly modulated array transmitter JO - The 8th European Conference on Antennas and Propagation (EuCAP 2014) PY - 2014/01/01 AU - Shi H AU - Tennant A ED - DO - DOI: 10.1109/eucap.2014.6901764 PB - IEEE Y2 - 2024/10/23 ER -