| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a high-frequency line converter which is reduced in manufacturing cost and improved in impedance matching, without having to bore a through-hole in a dielectric board. SOLUTION: A dielectric board 13 is disposed, so as to be sandwiched between a waveguide 11 and a short-circuit waveguide 12, a grounding plane 15 is provided on the rear of the dielectric board 13, and a strip conductor 14 and a probe 16 are provided on the front of the dielectric board 13, by patterning for the formation of a converter. Provided that the effective wavelength of high-frequency waves transmitted through the inside of the board 13 is represented byλ, a ground conductor 17, having a pattern of the same shape with a waveguide and nearly as wide as n.λ/4 (n: odd number) is formed on the surface of the dielectric board 13 by patterning, and the wall thicknesses of the waveguides 11 and 12 are set smaller than the width of the ground conductor 17. By this setup, the waveguides 11 and 12 are short-circuited to prevent the leakage of radio waves, and proper impedance matching can realized.</p> |
