MICROWAVE PHOTON CRYSTAL Russian patent published in 2019 - IPC H01P1/16 

FIELD: manufacturing technology.

SUBSTANCE: invention can be used to create microwave photonic crystal. Summary of invention is that microwave photonic crystal is made in form of rectangular waveguide containing periodically alternating in direction of propagation of electromagnetic radiation metal elements, at least one n-i-p-i-n diode structure in central element and power supply, according to the solution, the metal elements are in form of pins in an amount of not less than five located along the longitudinal axis of the wide wall of the waveguide, wherein the central pin is galvanically connected to both opposite walls of the waveguide, has discontinuity for arrangement of diode n-i-p-i-n structure, n-region of which are connected to opposite ends of central pin, and p-area is connected to positive pole of power supply source, rods located to the right and left of central, closest to it , have capacitive gaps at one of the wide walls of the waveguide and are configured to adjust the value of these gaps, next pins located to the left and to the right of the closest to the central ones have capacitive gaps of smaller value at the opposite wide wall, at the same time diameter of the central pin is less than diameters of the other pins.

EFFECT: providing the possibility of achieving the specified value of the power adjustment range with reduction of the longitudinal size of the microwave photonic crystal and reducing, even to one, the number of control elements in the form of semiconductor n-i-p-i-n-diodes.

1 cl, 4 dwg