TY - RPRT TI - Circularly polarized antennas with controlled radiation patterns AU - Prigoda, B. A. AU - Guryev, V. A. AU - Ulyanin, N. S. AU - Kalugin, N. N. PY - 1974 UR - https://ntrs.nasa.gov/citations/19750002929 ID - 19750002929 ER -