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Leaky-wave antenna based on substrate integrated waveguide

A technology of substrate integrated waveguide and leaky wave antenna, applied in the direction of leaky waveguide antenna, antenna, electrical components, etc., can solve the problem of slow scanning speed and achieve the effect of easy processing, fast scanning speed and novel structure

Pending Publication Date: 2020-07-28
SHENZHEN SUNWAY COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there are leaky-wave antennas based on substrate-integrated waveguides on the market, but the existing leaky-wave antennas based on substrate-integrated waveguides have the problem of slow scanning speed

Method used

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  • Leaky-wave antenna based on substrate integrated waveguide
  • Leaky-wave antenna based on substrate integrated waveguide
  • Leaky-wave antenna based on substrate integrated waveguide

Examples

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Embodiment 1

[0045] Please refer to Figure 1 to Figure 5 , Embodiment 1 of the present invention is: a leaky-wave antenna based on a substrate-integrated waveguide, which can be used not only for 3G and 4G communications, but also for 5G communications. The leaky wave antenna based on the substrate integrated waveguide includes a substrate integrated waveguide, and the substrate integrated waveguide includes an upper metal layer 1, a dielectric substrate 2 and a lower metal layer 3 that are sequentially stacked and connected, and the dielectric substrate 2 is provided with A plurality of conduction structures that conduct the upper metal layer 1 and the lower metal layer 3, the conduction structures are arranged in two rows, the upper metal layer 1 is provided with several slot modulation units 5, and the slot modulation The unit 5 is located between two rows of the conduction structures, the slot modulation unit 5 includes N slots 6 arranged side by side, and N is an integer greater than...

Embodiment 2

[0055] Please refer to figure 1 , figure 2 , Image 6 and Figure 7 , the second embodiment of the present invention is a reconfigurable antenna structure proposed on the basis of the first embodiment. The difference from the first embodiment is that the slot 6 is loaded with a variable capacitor 9 . It is easy to understand that the variable capacitor 9 is connected to both sides of the slit respectively.

[0056] Through the parameter settings of Example 1, such as Figure 7 As shown, when the loaded variable capacitor 9 gradually changes from 0fF to 50fF, the scanning angle of the periodic leaky wave antenna is fixed at 25 degrees, and the operating frequency of the periodic leaky wave antenna varies from 11.7GHz to 12.6GHz. . Through this method, the antenna scanning pattern can be reconstructed and the beam scanning angle of the leaky wave antenna can be controlled.

[0057] The reconstruction structure does not need to change the inherent size of the antenna, and ...

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Abstract

The invention discloses a leaky-wave antenna based on a substrate integrated waveguide, which comprises the substrate integrated waveguide, wherein the substrate integrated waveguide comprises an upper metal layer, a plurality of slit modulation units are arranged on the upper metal layer, each slit modulation unit comprises N slots arranged in parallel, and N is an integer greater than 2; in theslit modulation unit, the length of the slit is gradually reduced from the short central axis of the slit modulation unit to the two sides, the slits located on the two sides of the short central axisare symmetrical relative to the short central axis, and the slit is equally divided into two halves through a long central axis of the slit modulation unit. The leaky-wave antenna based on the substrate integrated waveguide is novel and simple in structure and easy to process; and compared with an existing leaky-wave antenna based on the substrate integrated waveguide, the leaky-wave antenna based on the substrate integrated waveguide is higher in scanning speed.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a leaky wave antenna based on a substrate integrated waveguide. Background technique [0002] Substrate Integrated Waveguide (SIW) is a quasi-closed planar waveguide structure similar to the traditional rectangular metal waveguide. In a typical single-layer substrate integrated waveguide structure, the metal layers on the upper and lower surfaces of the dielectric substrate pass through two parallel rows separated by a The spaced metallized through-holes are connected to form a quasi-closed planar waveguide structure. Substrate-integrated waveguides have both the advantages of traditional rectangular waveguides and microstrip lines, have good transmission characteristics and can be integrated with a variety of processes, so they are widely used in the fields of antenna system integration and miniaturization. [0003] Leaky-wave antennas have frequency scanning characteristics, ...

Claims

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Application Information

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IPC IPC(8): H01Q13/20
CPCH01Q13/20H01Q13/206
Inventor 唐小兰侯张聚
Owner SHENZHEN SUNWAY COMM
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