| 摘要 |
PURPOSE:To improve the band impedance with a compact and lightweight structure with the titled resonator by storing hermetically the dielectric substances having a 1/4lambda space between center parts of both substances into their own cavities respectively and then providing loop antennas for connection between these dielectric substances. CONSTITUTION:A cavity 5 is divided into two parts by a partition 51, and dielectric substances 7 are attached to the partition 51 via a supporting stage so that the end faces of these substances 7 are set in parallel to each other with a 1/4lambda space seecured between the centers of both substances 7. Then loop antennas 8 are set with correspondence to the centers of the substances 7 respectively, and a transmission line 9 is provided to the divided cavities 5 in parallel to the center lines of the substances 7. Then connectors 3 are attached at both ends of the line 9. The line 9 uses a bare conductor, and impedance control screws 11 for transmission line are provided for compensation of impedance. In addition, frequency control screws 10 are attached to the side plates of the cavity 5 corresponding to the centers of substances 7 respectively. |
