TY  - RPRT
TI  - Directivity optimization of a reflector antenna with cluster feeds - A closed-form solution
AU  - Lam, P. T.
AU  - Lee, S.-W.
AU  - Chang, D. C. D.
AU  - Lang, K. C.
PY  - 1985
UR  - https://ntrs.nasa.gov/citations/19860034440
ID  - 19860034440
ER  -