| 摘要 |
A movable waveguide block 50 having transmission lines 51 and 52 slides in a non-contact manner between a first end surface 30b of a first fixing waveguide block 30 having transmission lines 31 and 32 and a second end surface 40a of a second fixing waveguide block 40 having a transmission line 41, and switching of propagation paths is performed. Grooves 35A, 35B, 36A, 36B, 45A, 45B, 55A, 55B, 56A, 56B, 57A, 57B, 58A, and 58B having depths equivalent to ¼ of a guide wavelength of an electromagnetic wave of a leakage prevention object are provided in pairs around openings of the transmission lines 31, 32, 41, 51, and 52 facing each other across a gap between blocks. Accordingly, unintended leakage of electromagnetic waves to the transmission lines via the gap between the blocks is prevented, and isolation increases. |
| 主权项 |
1. A waveguide switch, comprising:
a base portion; a first fixing waveguide block which is fixed to the base portion and in which a plurality of transmission lines surrounded by metal walls is formed to penetrate to a first end surface; a second fixing waveguide block which is fixed to the base portion and has a second end surface parallel to the first end surface of the first fixing waveguide block, and in which a transmission line surrounded by metal walls is formed to penetrate from the second end surface; and a movable waveguide block which includes a third end surface which is parallel to and faces the first end surface of the first fixing waveguide block at a predetermined interval from the first end surface, a fourth end surface which is parallel to and faces the second end surface of the second fixing waveguide block at a predetermined interval from the second end surface, and a plurality of transmission lines surrounded by metal walls which are formed to penetrate from the third end surface to the fourth end surface, and which is supported by the base portion in a state where the movable waveguide block can slide in parallel to the first end surface of the first fixing waveguide block and the second end surface of the second fixing waveguide block due to a drive device. |
