| 摘要 |
PROBLEM TO BE SOLVED: To enable selecting a propagation direction in a waveguide in supplying power to the waveguide from a transmission line with another configuration.SOLUTION: A high-frequency transmission line 10 includes a waveguide 20, a 90° hybrid line 30, first and second power-feeding probes 41 and 42, and a switch circuit 50. The waveguide 20 is a rectangular waveguide, and one end is a first port Port21 and the other end is a second port Port22. A first terminal Ph31 of the 90° hybrid line 30 is connected to the first power-feeding probe 41, and a second terminal Ph32 is connected to the second power-feeding probe 42. The first and second power-feeding probes 41 and 42 are disposed at a distance of λg/4 in the waveguide 20. The third and fourth terminals Ph33 and Ph34 of the 90° hybrid line 30 are selectively connected to a third port Port10 via the switch circuit 50. |
