Investigation of mm-wave radiation from the undulator type wire antennas

Currently, the traveling wave linear one-wire radiators of finite size with only one, longitudinal, electric current density component (linear uniform wire antenna -LWA) have been sufficiently well studied and are used practically. On the other hand, a number of theoretical and experimental works devoted to the radiation by electron flow moving along a curvilinear trajectory showed that the electron beam moving along the wave trajectory with velocity V