Sugar shovel-type fan-shaped horizontal beam scanning antenna

Abstract

The invention discloses a sugar shovel-type fan-shaped horizontal beam scanning antenna. The sugar shovel-type fan-shaped horizontal beam scanning antenna comprises two metal plates (1), a horn antenna (2), a reflection surface (3), a transition structure (4) and a connection structure (5), wherein the connection structure (5) comprises a first connection part and a second connection part, the first connection part is formed by connecting one edge of the horn antenna (2) to one end of the reflection surface (3), the second connection part is formed by connecting the other edge of the horn antenna (2) to a side wall of the metal plate (1) where the other end of the reflection surface (3) is located, a radiation opening surface is formed between the second connection part and the other end of the reflection surface (3), one end of the transition structure (4) is connected to the metal plate (1) where the radiation opening surface is located, and the other end of the transition structure (4) extends towards a free space. By the sugar shovel-type fan-shaped horizontal beam scanning antenna, a fan-shaped beam can be obtained, the horizontal scanning function is finally achieved, energy leakage can be prevented, the energy utilization ratio can be relatively high, and the side lobe can be relatively low; and the antenna is relatively high in gain and relatively excellent in performance, and energy is relatively concentrated.

Description

technical field [0001] The invention relates to a sugar shovel-shaped fan-shaped beam horizontal scanning antenna, which belongs to the technical field of radio frequency antennas. Background technique [0002] The sugar shovel fan-shaped beam horizontal scanning antenna enables the whole system to realize fan-shaped beam and finally realize the horizontal scanning function, and has the characteristics of high gain, low sidelobe, concentrated energy and superior performance, and is widely used in radar and remote microwave Communication systems and other fields. [0003] At present, the existing scanning antennas usually have the disadvantages of large energy leakage, low energy utilization rate, high side lobes, and high processing precision requirements. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a sugar shovel-shaped fan-shaped beam horizontal scanning ante...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a sugar shovel-shaped fan-shaped beam horizontal scanning antenna, which solves the problem that the existing scanning antenna usually has more energy leakage, low energy utilization rate, and high side lobes. Issues such as higher processing accuracy requirements

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