The effect of nonuniform focusing magnetic field on orotron generation

Results of experimental investigation of two models of orotron devices with different lengths (23 and 32 mm) of two-row open periodic structures (TRPS) and different focusing magnetic fieldpsilas distribution in interaction region are presented. On the basis of data received in 120...215 GHz frequency range the conclusion is made on the possibility of TRPS use in orotrons of higher frequency range.