Skobeltsyn Institute of Nuclear Physics
Lomonosov Moscow State University

In the present work we made numerical simulations of the biperiodic on-axis coupled accelerating structure at 2450 MHz for the project of the Harmonic Double-Sided CW Race-Track Microtron at the energy 1.5 GeV, being constructed in the Institute of Nuclear Physics of the Mainz University (Germany). On the basis of the calculations the test cells have been manufactured, used for developing the methods of measuring and tuning the structure cells. The final cells geometry has been established.