TY  - RPRT
TI  - Antenna pattern control using impedance surfaces
AU  - Balanis, Constantine A.
AU  - Liu, Kefeng
AU  - Tirkas, Panayiotis A.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19940009326
ID  - 19940009326
ER  -