The characteristics of a microstripline-fed cylindrical slot antenna a
re presented. The integral equation, which involves-spectral domain Gr
een's functions and unknown slot electric field, is numerically solved
using the method of moments. Computed results are compared with slot
antenna on planar surface to demonstrate the validity and accuracy of
the method. The effects of the size of the cylinder on the input imped
ance and far-field pattern are investigated.