Compact 5g millimeter wave dual polarized horn antenna

Abstract

The invention discloses a compact 5G millimeter wave dual-polarized horn antenna, and relates to the technical field of horn antennas. The antenna includes an upper plate, a lower plate, a front plate, a rear plate and a cover plate, the cover plate is located at the rear end of the antenna, the front plate and the rear plate are located between the upper plate and the lower plate, the The right ends of the upper plate, the lower plate, the front plate and the rear plate are provided with an inclined surface extending toward the horn antenna, and the upper plate, the lower plate, the front plate, the rear plate and the cover plate form an excitation cavity structure, and the excitation cavity structure is formed. An excitation cavity with a rectangular cross section and a constant cross section is formed in the cavity structure, the left end of the excitation cavity is closed by the cover plate, the upper plate, the lower plate, the front plate and the rear plate in the excitation cavity A curved ridge is formed on each of them, the angle between the ridges is 90°, and several Archimedes spiral curves are formed on the curved ridge. The antenna can improve the symmetry of the E-plane and H-plane pattern, the high-frequency pattern is more stable, and the gain flatness is improved.

Description

technical field [0001] The invention relates to the technical field of horn antennas, in particular to a compact 5G millimeter wave dual-polarized horn antenna. Background technique [0002] At present, a large number of 5G consumer electronic products are in the research and development verification stage, and their performance needs to be verified urgently. At present, test antennas in the millimeter wave band (test frequency ranges from 18GHz to 50GHz) are monopolized by foreign suppliers. As a result, the price of the antenna is high and the delivery period is long, which cannot cope with the explosive growth of domestic demand. Due to the characteristics of 5G, a 360° spherical scan is required for each product during the test to confirm the quality of its antenna. The traditional test method is to use multiple single-polarized antennas to form a test antenna array to scan the product in all directions (multiple antennas are tested instead of rotating). The symmetry ...

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Problems solved by technology

The symmetry of the E-plane and H-plane pattern of the dual-polarized high-gain horn antenna in the prior art is poor, and the high-frequency pattern is unstable

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