FIELD: electricity.
SUBSTANCE: in microwave filter frequency-selective element is arranged in the form of single-dimensional wave-guide photon crystal with violation of periodicity in the form of modified thickness and/or dielectric permeability of central layer, and element for attenuation control is arranged in the form of p-i-n-diode structure arranged downstream photon crystal in direction to propagation of electromagnetic wave and connected to source of supply with controlled voltage. At the same time selection of quantity and parametres of layers in photon crystal determine width of frequency transmission band area, selection of thickness or dielectric permeability provide for adjustment of central frequency of this area, and voltage control on p-i-n-diode structure provides control of transmission factor.
EFFECT: invention provides for possibility of high-speed selection of signal in mode for transmission.
8 dwg, 1 ex
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