A setup for measuring characteristics of microwave electric vacuum devices with open resonance structures

A new modification of the universal experimental setup for measuring electrodynamic characteristics of microwave generators with open resonance structures of the orotron-diffraction-radiation-generator type is described. To expand the functional capabilities and the electronic frequency-tuning range, an additional periodic metal-dielectric structure is introduced into the open resonator. The experimental results of investigations of the energy, volt-ampere, and frequency characteristics of the modified diffraction-radiation generator prototype are compared to the characteristics of the generator without a metal-dielectric structure.