| 摘要 |
Disclosed in an embodiment of the present invention is a power feeder comprising a horn antenna 10 and a dielectric substrate 20, and a transmission line 30 and grounding parts 40 disposed on the dielectric substrate 20; the horn antenna 10 comprises a horn open end 11 and an opposite horn power feeding input end 12, and a cavity located between the horn open end 11 and the horn power feeding input end 12; the cavity comprises a first inner surface 13; the transmission line 30 comprises a straight part 31 and a bent part 32; the grounding parts 40 are arranged on the two sides of the straight part 31; the straight part 31, the bent part 32 and the grounding parts 40 pass through the horn power feeding input end 12 into the cavity; the straight part 31 is attached to the first inner surface 13; the bent part 32 and the first inner surface 13 form a particular angle, thus on the one hand, simplifying the transmission structure of transmitting a signal to the antenna, shortening the transmission distance, and reducing loss of free space in the transmission process, and on the other hand, enabling the transmission line and the high-gain horn antenna to be coplanar, facilitating integration of the horn antenna on a circuit board. |
