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Dual-frequency multilayer planar reflection array antenna

A planar reflection and array antenna technology, applied in the microwave field, can solve the problems of increased transmission loss, bulky size, and affecting antenna radiation efficiency, etc., and achieves the effects of easy processing and production, simple and symmetrical structure, and low cost

Inactive Publication Date: 2019-06-18
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The traditional parabolic antenna is the most widely used high-gain antenna, but because of its bulky size, it does not meet the "miniaturization" requirements of today's mobile communications; the antenna array method can also greatly increase the antenna gain, but with the size of the array The expansion of the feeder network will also greatly increase the complexity of the feeder network, resulting in an increase in transmission loss and affecting the overall radiation efficiency of the antenna

Method used

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  • Dual-frequency multilayer planar reflection array antenna
  • Dual-frequency multilayer planar reflection array antenna
  • Dual-frequency multilayer planar reflection array antenna

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Embodiment Construction

[0025] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 6 As shown, the structure of a dual-frequency multi-layer planar reflectarray antenna is as follows: the feed part of the antenna adopts a horn antenna 1, which is placed on the high-frequency reflective surface 2, the high-frequency hollow ground 3, the anti-reflection surface 4, and the low-frequency Above the reflecting surface 5 and the low-frequency ground 6 . The first layer is a high-frequency reflective surface 2, which adopts a structure in which the inside is a square and the outside is a square ring; Each unit corresponds one by one, and the geometric center is the same; the third layer is the anti-reflection surface 4, which is composed of a plurality of square metal patches, and each patch corresponds to each unit of the high-frequency hollow ground 3; the fourth layer It is a low-frequency ref...

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Abstract

The invention discloses a dual-frequency multilayer planar reflection array antenna which comprises a directional feed source and a high-frequency reflection surface, a high-frequency hollow-out site,an anti-reflection surface, a low-frequency reflection surface and a low-frequency complete site which are sequentially laminated and placed in parallel. The dual-frequency multilayer planar reflection array antenna is simple in structure; by respectively designing the high-frequency reflection surface and the low-frequency complete site on both different upper and lower layers, on the basis of afrequency selective anti-reflection technology, independent design of antenna units can be implemented on two separated electromagnetic wave frequency bands; and the dual-frequency multilayer planarreflection array antenna supports dual-frequency dual-polarization simultaneous working and can fulfill the design aims of high gain and low minor lobe on each frequency band and under each type of polarization.

Description

technical field [0001] The invention belongs to the field of microwave technology, and in particular relates to a dual-frequency multi-layer planar reflection array antenna. Background technique [0002] With the rapid development of modern satellite communication, microwave communication and aerospace technology, high-gain antennas play an extremely important role in ultra-long-distance communication. The traditional parabolic antenna is the most widely used high-gain antenna, but because of its bulky size, it does not meet the "miniaturization" requirements of today's mobile communications; the antenna array method can also greatly increase the antenna gain, but with the size of the array The expansion of the feeder network will also greatly increase the complexity of the feeder network, resulting in increased transmission loss and affecting the overall radiation efficiency of the antenna. Combining the advantages of parabolic antenna and microstrip array antenna, a new t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/185H01Q13/02H01Q5/20H01Q5/307H01Q1/48
Inventor 王翔宇黄晓东程崇虎
Owner NANJING UNIV OF POSTS & TELECOMM
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