Millimeter-wave dual-layer dual-frequency dual-polarization planar reflection array antenna
A technology of planar reflection and array antenna, which is applied to the combination of antenna units with different polarization directions, antennas, and devices that enable antennas to work in different bands at the same time, and can solve the problems of small antenna processing tolerance, limited application range, and inter-frequency coupling. Large and other problems, to achieve the effect of improving the processing tolerance, reducing the steepness, and expanding the reflection phase shift range
Active Publication Date: 2016-04-06
超视距(南京)科技有限责任公司
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[0004] The purpose of the present invention is to provide a millimeter-wave double-layer dual-frequency dual-polarized planar reflectarray antenna to solve the problems of small processing tolerance, large frequency ratio, large inter-frequency coupling and limited application range of existing antennas.
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[0027] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
[0028] Such as figure 1 The shown millimeter-wave double-layer dual-frequency dual-polarized planar reflectarray antenna includes a reflector and a feed group fixed on the front of the reflector through a support frame 4 . Among them, the feed group includes low-frequency feed 5 and high-frequency feed 51; the reflector includes a dielectric board 1, on which a reflective array unit 2 is arranged, and a metal plate 11 is ar...
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Abstract
The invention discloses a millimeter-wave dual-layer dual-frequency dual-polarization planar reflection array antenna. The millimeter-wave dual-layer dual-frequency dual-polarization planar reflection array antenna comprises a reflection plate and a feed source group which is fixed to the front surface of the reflection plate through a supporting frame; the feed source group includes a low-frequency band feed source and a high-frequency band feed source; the reflection plate includes a dielectric plate; the dielectric plate is provided with a reflection array unit; the back surface of the dielectric plate is provided with a metal plate; the reflection array unit includes a substrate group which is formed through bonding at least layers of substrates, wherein each substrate is provided with an evenly-distributed antenna phase shift reflection array pattern layer; the back of the substrate group is provided with a metal grounding layer; and the metal grounding layer is fixed on a metal plate. According to the millimeter-wave dual-layer dual-frequency dual-polarization planar reflection array antenna of the invention, the antenna phase shift reflection array pattern layers in square areas have excellent dual-polarization characteristics, and the phase shift amount at two different frequency bands of the antenna phase shift reflection array pattern layers is independent from each other, and therefore, the reflection array antenna can work under a dual-frequency orthogonally dual-linear polarization condition.
Description
technical field [0001] The invention relates to a millimeter-wave double-layer dual-frequency dual-polarization planar reflection array antenna. Background technique [0002] Due to the requirements of large-capacity communication systems and high-performance radars in modern society, the disadvantages of traditional parabolic reflector antennas, which are bulky and bulky, have become increasingly apparent. For this reason, foreign scholars have proposed the concept of array reflective antenna. The reflection antenna has the common advantages of the reflection antenna and the array antenna. Its basic structure is a single-layer or multi-layer periodic array composed of a large number of passive resonant or non-resonant elements, and then a feed source illuminates the array. By adjusting the medium The scattering phase of each unit on the board for the incident wave makes an equiphase plane in a specific direction, thus emitting a highly directional beam. [0003] Tradition...
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Login to view more IPC IPC(8): H01Q21/24H01Q15/14H01Q5/50H01Q1/36
Inventor 邵振海王泉
Owner 超视距(南京)科技有限责任公司
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