Impulse radiation by wire bends

Field plots show that the reasons for radiation are the impulse generator and the antenna end, reflecting the impulse. These are the only discontinuities on a straight line dipole. More complex thin wire structures include more discontinuities, especially bends. Although it is well known that wire bends generate radiation, the specific geometric attributes of the radiated electromagnetic wavefield have not yet been studied. A time-dependent electric field integral equation is used to calculate the current distribution on the bent wire. By applying the boundary condition for the tangential electric field at the antenna surface one obtains an initial value problem. This can be solved by a time-stepping procedure using the subsectional collocation form of the method of moments