In this paper, a novel v-shaped antenna is proposed. This type of ante
nna may be considered as an evolution of the noncoplanar fin antenna.
The structure is similar to the latter but it is more easy to analyze
and more approachable to the practical applications. Closed-form solut
ions for the characteristic impedance and the fields are obtained. The
theoretical analysis makes use of conformal mapping technique based o
n the fact that a pure spherical TEM wave can be supported by the ante
nna.