Author/Authors :
Ginzburg، نويسنده , , N.S. and Elzhov، نويسنده , , A.V. and Ilyakov، نويسنده , , E.V. and Ivanov، نويسنده , , I.N. and Kazacha، نويسنده , , V.I. and Kaminsky، نويسنده , , A.K. and Kulagin، نويسنده , , I.S. and Perelstein، نويسنده , , E.A. and Peskov، نويسنده , , N.Yu. and Sedykh، نويسنده , , S.N. and Sergeev، نويسنده , , A.P and Sergeev، نويسنده , , A.S. and Zaitsev، نويسنده , , N.I.، نويسنده ,
Abstract :
It is known that precise frequency tuning of a FEM oscillator with a Bragg resonator could be performed by changing the corrugation phase shift between the reflectors. This report presents new experimental results obtained using a tunable band-pass waveguide filter as well as a heterodyne technique to measure the spectrum. The 30 GHz FEM oscillator was tuned over a frequency range of 6% with a precision of about 0.2%. In all regimes the radiation spectrum width did not exceed 0.1%. The dependence of the operating frequency on the value of the corrugation phase shift is in good agreement with previous simulation results.
Keywords :
Bragg resonator , Free electron maser , Oscillator , Frequency tuning
