Large-aperture wide-angle scanning multi-beam antenna

A multi-beam antenna, wide-angle scanning technology, applied to antennas, electrical components, etc., can solve the problems of high-gain multi-beam antenna wide-angle scanning performance and cost work, and achieve small mechanical motion, fewer transceiver links, and lower costs. Effect

Pending Publication Date: 2019-05-31
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to solve the wide-angle scanning performance and cost work pr

Method used

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  • Large-aperture wide-angle scanning multi-beam antenna
  • Large-aperture wide-angle scanning multi-beam antenna

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Embodiment Construction

[0022] refer to figure 1 , a large-aperture wide-angle scanning multi-beam antenna, including a spherical lens, a spherical aberration correction lens and a feed source group, the spherical lens is hollow, and the intersection point of the electromagnetic wave that enters the spherical lens in any direction and transmits the formed transmission line forms a spherical lens. The concentric reverse spherical surface 7 of the lens, the feed source group is located at the center of the reverse spherical surface, and the spherical lens 1 is made of anisotropic medium. The feed group is located in the reverse spherical surface.

[0023] The feed source group carries a plurality of feed sources 4, and the plurality of feed sources radially point to the inner wall of the reverse spherical surface to completely scan the inner cavity of the reverse spherical surface. A spherical aberration correction lens is arranged at the mouth of each feed source, and the feed source group 3 has The ...

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Abstract

The invention relates to a large-aperture wide-angle scanning multi-beam antenna in the antenna field. The large-aperture wide-angle scanning multi-beam antenna comprises a spherical lens, a phase error correction lens and a feed source group. The spherical lens collects/emits planar electromagnetic waves, and the planar electromagnetic waves are gathered in a spherical surface S concentric with the spherical lens via the phase error correction lens. The phase centers of different feed sources of the feed source group are positioned in the spherical surface S, the axial directions of the feedsources are always kept consistent with the radial direction of the spherical lens, and the positions and orientations of the feed sources are changed to realize scanning of different wave beams. Thehigh-gain, multi-beam, low-cost and wide-angle scanning antenna is realized.

Description

technical field [0001] The invention relates to a large-aperture wide-angle scanning multi-beam antenna in the field of antennas, and provides a low-cost implementation of a high-gain, multi-beam and wide-angle scanning antenna. Background technique [0002] Because multi-beam antennas can communicate or monitor multiple targets at the same time, they are widely used in many fields such as satellite communication, navigation, radio astronomy, radar, and radio monitoring. [0003] In terms of implementation methods, multi-beam antennas can be divided into three types: phased array antennas, reflector antennas, and dielectric lens antennas. [0004] The multi-beam phased array antenna uses the beam forming network to control the phase of the antenna unit, and in different directions, the electromagnetic waves meet the same conditions of "spatial phase difference" and "intra-array phase difference", thus forming multiple instantaneous beams with different directions . The adv...

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Application Information

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IPC IPC(8): H01Q19/06H01Q25/00
Inventor 伍洋何应然杜彪吴建明冀祯
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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