TY  - RPRT
TI  - Finite difference time domain modeling of spiral antennas
AU  - Penney, Christopher W.
AU  - Beggs, John H.
AU  - Luebbers, Raymond J.
PY  - 1992
UR  - https://ntrs.nasa.gov/citations/19930009397
ID  - 19930009397
ER  -