Reconfigurable metasurface electric scanning array antenna based on double circular ring units

An array antenna and double-ring technology, applied in the field of reconfigurable metasurface electronically scanned array antennas, can solve problems such as system cost, weight increase, complex feeding network design, and restrictions on large-scale applications, and achieve array scale scalability Strong, low profile, fast beam scanning effect

Pending Publication Date: 2021-04-30
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0003] Electronically scanned phased array antenna can better overcome the above shortcomings. It not only has fast scanning speed and more flexible performance, but also has a planar or conformal structure that is more conducive to maintaining conformality with the carrier. However, the design of its feed network is complicated, especially when the ant

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  • Reconfigurable metasurface electric scanning array antenna based on double circular ring units
  • Reconfigurable metasurface electric scanning array antenna based on double circular ring units
  • Reconfigurable metasurface electric scanning array antenna based on double circular ring units

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] Such as Figure 1~3 As shown, a reconfigurable metasurface electronically scanned array antenna based on a double ring unit includes a feed 1 and an array antenna assembly 2, and the array antenna assembly 2 includes a plurality of digital radiating elements 3, and the feed 1 It is used to provide a space irradiation source for the array antenna assembly 2 and receive the scattered electromagnetic waves of the array antenna assembly; the digital radiation unit 3 includes a dielectric layer and a radiat...

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Abstract

The invention discloses a reconfigurable metasurface electric scanning array antenna based on double circular ring units, and relates to the technical field of array antennas. The antenna comprises a feed source and an array antenna assembly, the array antenna assembly comprises a plurality of digital radiation units, and the feed source is used for providing a space irradiation source for the array antenna assembly and receiving scattered electromagnetic waves of the array antenna assembly; each digital radiation unit comprises a dielectric layer and a radiation layer, the radiation layer is internally provided with a double-ring radiation structure formed by radiation patches, digital electric switches are embedded in the radiation patches, and the dielectric layer is internally provided with a direct-current bias circuit used for controlling on-off of the digital electric switches. The antenna is simple in structure, low in profile, light in weight, easy to conform and low in cost, and has the advantages of being small in feed loss, high in beam scanning speed and high in array scale expansibility.

Description

technical field [0001] The present invention relates to the technical field of array antennas, in particular to a reconfigurable metasurface electronically scanned array antenna based on double circular ring units. Background technique [0002] Beam reconfigurable array antennas with high-gain beam scanning characteristics have a wide range of applications in various fields. The existing high-gain beam scanning antennas mainly include mechanical rotating parabolic antennas and electronically controlled phased array antennas. Among them, the rotating parabolic antenna has the advantages of simple structure, low cost, and high efficiency, but its shape is a special curved surface, bulky, heavy, and the beam scanning speed is slow, and the servo system requires high requirements. [0003] Electronically scanned phased array antenna can better overcome the above shortcomings. It not only has fast scanning speed and more flexible performance, but also has a planar or conformal s...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q1/36H01Q1/38H01Q1/50H01Q15/00
CPCH01Q1/36H01Q1/38H01Q1/50H01Q15/002H01Q21/00
Inventor 董建明吴丹李经安刘莹王伟周妍刘雪峰吕游石拓毕会春张春光杨喜光郜金刚
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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