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Reflection array antenna unit, reflection array antenna and manufacturing method

A technology of reflective array antenna and manufacturing method, which is applied in the direction of antenna, antenna coupling, slot antenna, etc., can solve the problems of large antenna volume, difficulty in achieving high gain, poor signal quality, etc., achieve high gain gain, and solve electromagnetic interference and coupling Problems, High Gain Effects

Pending Publication Date: 2020-11-17
CHINA ACADEMY OF INFORMATION & COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the antennas in the prior art have the following problems in terms of structure and effect: (1) The antenna is large in size, and the complex feeding network will introduce additional losses. This problem is particularly prominent for high-frequency millimeter-wave frequency bands, and it is difficult to achieve high gain; (2) Potential electromagnetic interference and coupling also exist between different frequency spectrums, resulting in poor signal quality

Method used

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  • Reflection array antenna unit, reflection array antenna and manufacturing method
  • Reflection array antenna unit, reflection array antenna and manufacturing method
  • Reflection array antenna unit, reflection array antenna and manufacturing method

Examples

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Embodiment 1

[0039] A reflectarray antenna unit, such as figure 1 and figure 2 As shown, it includes a rectangular upper dielectric substrate 2, an upper foil substrate 4, a lower dielectric substrate 5, and a lower foil substrate 6 that are sequentially connected from top to bottom; There is a radiation patch 1 at the corner of the top surface, and the upper foil plate 4 is provided with a first coupling slot 401, a second coupling slot 402, and a third coupling slot 403 located below the radiation patch 1; the lower dielectric substrate 5 contains metal Metallized via holes, together with the upper foil plate and the lower foil plate, constitute a dielectric integrated waveguide; the metallized via holes include first metallized via holes 3 evenly distributed around the antenna unit and at least one side of the radiation patch 1 .

[0040] The manufacturing method of the reflectarray antenna unit of this embodiment may include the following steps,

[0041] Bonding a radiation patch 1 a...

Embodiment 2

[0046] A reflectarray antenna unit is similar to Embodiment 1, except that the metallized via hole further includes a matching via hole 7 located at a corner of the dielectric integrated waveguide.

[0047] The above-mentioned reflectarray antenna unit may further include that at least one first metallized via hole 3 located at one end of the dielectric integrated waveguide is shifted inward to form a second metallized via hole 8 .

[0048] The above-mentioned reflectarray antenna unit may further include that the first coupling slot 401 , the second coupling slot 402 and the third coupling slot 403 are center aligned and arranged in parallel.

[0049] The above-mentioned reflectarray antenna unit may further include that the first coupling slot 401 , the second coupling slot 402 and the third coupling slot 403 are perpendicular to the propagation direction of the dielectric integrated waveguide.

[0050] The above-mentioned reflectarray antenna unit can further include that t...

Embodiment 3

[0058] A reflectarray antenna unit, similar to Embodiment 1 or Embodiment 2, the difference is that the radiation patch 1 is a square, located at the upper right corner of the top surface of the upper dielectric substrate 2, and its side length is 2 of the upper dielectric substrate 2 0.3-0.5 times the wavelength of the medium, and the thickness is 0.035mm. Such as image 3 As shown, the width of the first coupling slot 401 is 0.04-0.05 times the dielectric wavelength of the lower dielectric substrate 5 , and the length is 0.3-0.33 times the dielectric wavelength of the lower dielectric substrate 5 . The second coupling slot 402 has a width of 0.04-0.05 times the dielectric wavelength of the lower dielectric substrate 5 and a length of 0.34-0.36 times the dielectric wavelength of the lower dielectric substrate 5 . The third coupling slot 403 has a width of 0.04-0.05 times the dielectric wavelength of the lower dielectric substrate 5 and a length of 0.25-0.29 times the dielect...

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Abstract

The invention discloses a reflection array antenna unit, a reflection array antenna and a manufacturing method. An upper dielectric substrate and a lower dielectric substrate of the reflective array antenna unit are in press fit connection, and a radiation patch is arranged at the corner of the top surface of the upper dielectric substrate. The upper foil plate is provided with a first coupling gap, a second coupling gap and a third coupling gap which are located below the radiation patch; the lower dielectric substrate comprises a metallized via hole, and the lower dielectric substrate, the upper foil plate and the lower foil plate jointly form a dielectric integrated waveguide; the metallized through holes comprise first metallized through holes which are uniformly distributed around theantenna unit and on at least one side of the radiation patch; the three slots and the radiation patch play a role of a resonator, are coupled and cross-coupled with each other, have filtering characteristics, and can effectively suppress out-of-band interference; the reflective array antenna feeds each antenna unit in an empty feed mode, has the characteristics of low loss, low profile and high gain, is good in signal quality, and has the characteristics of miniaturization and integration.

Description

technical field [0001] The present application relates to the technical field of antennas, in particular to a reflectarray antenna unit, a reflectarray antenna and a manufacturing method. Background technique [0002] The microstrip antenna is a form of antenna that appeared in the 1970s. As early as 1953, Deschamps proposed the concept of using the radiation principle of the microstrip line to make a microstrip antenna. It was not until the theoretical model of microstrip transmission and the development of lithography technology on copper-clad dielectric substrates that scholars such as Munson and Howell developed the first batch of practical microstrip antennas. After the 1970s, the microstrip antenna has been further developed both in theory and in the breadth and depth of application, and has shown its great potential in practical application. Microstrip antennas of various new forms and performances are constantly emerging, and are widely used in military fields such ...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q13/10H01Q19/10H01Q21/06
CPCH01Q1/38H01Q1/50H01Q1/521H01Q1/523H01Q13/106H01Q19/10H01Q21/065
Inventor 臧家伟王守源
Owner CHINA ACADEMY OF INFORMATION & COMM
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