| 摘要 |
<p>A low-price, high-performance generator of circularly polarized waves is provided. A generator of circularly polarized waves includes a circular waveguide (11) having a plurality of side grooves (12) along its axis (C1) in the sidewall. The waveguide is designed properly in the number, pitch, radial depth, circumferential width, length, etc. of the side grooves (12). According to this generator of circularly polarized waves, disturbances for phase delay are given where the electromagnetic field distribution in transmission mode is less dense, so that phase delay may not change greatly due to slight variations in the width, depth and length of the side grooves (12); that is, the variations in the dimensions of the grooves may not substantially affect the characteristics of the generator, thus realizing mass production and cost saving.</p> |
