WAVEGUIDE POLARIZATION CONVERTER FOR TWO OPERATING FREQUENCY BANDS Russian patent published in 2022 - IPC H01P1/17 H01P1/165 

FIELD: radio engineering.

SUBSTANCE: waveguide polarization converter for two operating frequency ranges contains a section of a circular waveguide with a diameter D and two groups of metal pins, the longitudinal axes of which are located in the same diametrical plane. Metal pins with a diameter d₁ of the first group are made in the form of two rows located on the inner wall of a segment of a circular waveguide symmetrically relative to its longitudinal axis with a constant pitch t between the longitudinal axes of adjacent metal pins. Metal pins of the second group with a diameter d₂<d₁ are made in the form of two rows located in a segment of a circular waveguide symmetrically relative to its longitudinal axis with a constant pitch t between the longitudinal axes of adjacent metal pins. In each group, the metal pins of one row are coaxial with the metal pins of the other row, and the height of the metal pins does not decrease as it approaches the edge of the row to its center. Metal pins of the second group are installed coaxially on all metal pins of the first group. The diameter D of a section of a circular waveguide is made in such a way that the low-frequency operating range is located between the critical frequency of the fundamental wave H11 and the critical frequency of the first higher wave type E₀₁ of a circular waveguide with a diameter D, and the high-frequency operating range is located between the critical frequencies of the higher types of waves H₂₁ and Е₁₁/H₀₁ of a circular waveguide. a waveguide with a diameter D. Metal pins of the first group are made with a diameter d₁ in the range (0.14-0.18) D, metal pins of the second group are made with a diameter d₂ in the range (0.01-0.05) D, the pitch t between the axes of adjacent metal pins is made in the range (0.20-0.25) D.

EFFECT: size reduction.

3 cl, 18 dwg