Broadband reflection array antenna based on single-layer quasi-self-complementary structure unit
A technology of reflective array antenna and structural unit, which is applied in the direction of antenna, radiating element structural form, antenna grounding switch structural connection, etc. It can solve the problems of unsatisfactory phase response linearity and inability to realize wide bandwidth, and achieve high-gain broadband reflection Array design, beneficial to system integration, and convenient processing
Active Publication Date: 2020-02-25
NANJING UNIV OF SCI & TECH
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[0005] It can be seen from the above that although the existing reflective array antenna can achieve a phase shift greater than 360°, the linearity of the phase response is not ideal, and it is impossible to achieve a wide bandwidth.
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[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0026] combine figure 1 , the present invention proposes a broadband reflectarray antenna based on a single-layer quasi-self-complementary structural unit, including a feed antenna 1 and a reflectarray 2; the feed antenna 1 is located above the reflectarray 2 and is used to emit spherical electromagnetic waves to the Array 2; the reflection array 2 includes several reflection units, which are used to convert the spherical electromagnetic waves emitted by the feed antenna 1 into planar electromagnetic waves and radiate them to achieve high gain of the antenna.
[0027] Fur...
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Abstract
The invention discloses a broadband reflection array antenna based on a single-layer quasi-self-complementary structure unit, which comprises a feed source antenna and a reflection array. The reflection array comprises a plurality of reflection units, each reflection unit comprises an upper metal patch, a dielectric substrate and a metal floor, and each upper metal patch is of an inverted-L-shapedquasi-self-complementary structure and comprises an inverted-L-shaped patch and an inverted-L-shaped gap in complementary relation with the inverted-L-shaped patch. The linear change of the phase canbe realized by adjusting the length of the inverted L-shaped quasi-self-complementary structure, so that the reflection array antenna formed by the reflection units can realize high gain, wide bandwidth and high aperture efficiency, and in addition, the reflection array adopts the single-layer dielectric substrate, the structure is simple, the processing is convenient, the cost is low, the mass is small, and the large-scale production can be realized.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband reflective array antenna based on a single-layer quasi-self-complementary structural unit. Background technique [0002] In modern society, with the rapid development of communication technologies such as radar systems and satellite communications, there is an increasing demand for high-gain antennas. Parabolic antennas and microstrip array antennas are traditional high-gain antennas. The parabolic antenna consists of a parabolic reflector and a feed source located at its focal point. Due to the large volume and heavy mass of the parabolic reflector, it cannot meet the requirements of system integration in modern communication applications. Although the microstrip array antenna has low profile, small size and easy integration, its complex feed network leads to high loss, which affects the gain and efficiency of the antenna. [0003] In order to realize a high-gain ...
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Login to View More IPC IPC(8): H01Q1/36H01Q1/50H01Q15/14
CPCH01Q1/36H01Q1/50H01Q15/14
Inventor 郭璐朱虹冯文杰
Owner NANJING UNIV OF SCI & TECH