Design of S-band high-efficiency magnetrons based on cooker magnetron

In order to achieve high-efficiency output in the S-band, a 10-cavity magnetron is designed. The size of each part of the magnetron is determined according to the design requirements. We use the cross-chain structure to improve the frequency interval between the
$\pi$
-mode and the adjacent mode, and improve the coupling output matching structure. PIC simulation is done to calculate the performance of the magnetron. The final result of
$\boldsymbol{PIC}$
simulation is displayed that the magnetron in this paper was able to produce the calculated output power increased to 12.6 kW with anode current
$\boldsymbol{I_{a}=1.79}$
A, operating frequency
$\boldsymbol{f_{1}=2.4624}$
GHz and, which resulted an increase in electronic efficiency of the magnetron operation of 90.25% at external axial magnetic field
$\boldsymbol{B_{0}=0.32\mathrm{T}}$
and applied voltage
$\boldsymbol{V_{0}=7.38\text{kV}}$
. Compared with the traditional S-band magnetron, the magnetron designed in this paper provides an effective scheme for high-efficiency microwave output.