A high gain antenna and base station

Abstract

The utility model relates to patch antenna technical field provides a kind of high gain antenna and base station, wherein antenna includes: dielectric substrate;Metal floor, set on the side surface of dielectric substrate;Metal radiation patch, set on the other side surface of dielectric substrate away from metal floor;Feed structure, connect with metal radiation patch;Curly flow slit structure, set in metal radiation patch, curly flow slit structure includes at least one group of center symmetry arrangement's curly flow slit, and curly flow slit structure is used to excite high order mode and reduce resonant frequency.Based on curly flow slit structure, it can reduce resonant frequency, under the same frequency, smaller structure size can be used, it is favorable to realize the miniaturization of antenna, and curly flow slit structure makes the radiation signal generated by metal radiation patch have higher gain, let signal can transmit farther distance, it is favorable to improve signal coverage range, applicable to 4.9GHz etc. High frequency band base station improves the application scene of coverage range.

Claims

1. A high-gain antenna, characterized in that, include: Dielectric substrate (100); A metal floor (200) is disposed on one side of the dielectric substrate (100); A metal radiating patch (300) is disposed on the other side of the dielectric substrate (100) opposite to the metal floor (200); A power supply structure (400) is connected to the metal radiating patch (300); A meandering slit structure (500) is disposed on the metal radiation patch (300). The meandering slit structure (500) includes at least one set of centrally symmetrically arranged meandering slits. The meandering slit structure (500) is used to excite higher-order modes and reduce the resonant frequency.

2. A high-gain antenna according to claim 1, characterized in that, The meandering slit structure (500) includes four first meandering slits (510). The four first meandering slits (510) are arranged symmetrically with the midpoint of the metal radiating patch (300) as the center. The four first meandering slits (510) are enclosed and there is a gap between the ends of adjacent first meandering slits (510). The power supply point connected to the power supply structure (400) and the metal radiating patch (300) is located within the enclosed area of ​​the four first meandering slits (510).

3. A high-gain antenna according to claim 2, characterized in that, All four of the first meandering slits (510) are serrated.

4. A high-gain antenna according to claim 2, characterized in that, The meandering slit structure (500) includes four second meandering slits (520), which are arranged symmetrically with respect to the midpoint of the metal radiation patch (300). The second meandering slits (520) are located outside the enclosure of the four first meandering slits (510).

5. A high-gain antenna according to claim 4, characterized in that, The second meandering slit (520) is provided with a serrated portion (521).

6. A high-gain antenna according to claim 5, characterized in that, The second meandering slit (520) is rectangular, and the serrated portion (521) is provided on both sides of the second meandering slit (520) parallel to the center direction. The central direction is the straight line connecting the midpoint of the second meandering slit (520) and the midpoint of the metal radiation patch (300).

7. A high-gain antenna according to claim 4, characterized in that, The metal radiation patch (300) includes a central rectangular portion and rectangular extensions located around the central rectangular portion. The power supply structure (400) is connected to the central rectangular portion. Four first meandering slits (510) are located at the four edges of the central rectangular portion, and four second meandering slits (520) are located at the rectangular extensions.

8. A high-gain antenna according to any one of claims 1 to 7, characterized in that, The power supply structure (400) includes a vertically polarized coaxial line (410) and a horizontally polarized coaxial line (420). The metal ground plane (200) and the dielectric substrate (100) are both provided with a first through hole and a second through hole. The core wire of the vertically polarized coaxial line (410) passes through the first through hole and is connected to the metal radiating patch (300). The outer conductor of the vertically polarized coaxial line (410) is connected to the metal ground plane (200). The core wire of the horizontally polarized coaxial line (420) passes through the second through hole and is connected to the metal radiating patch (300). The outer conductor of the horizontally polarized coaxial line (420) is connected to the metal ground plane (200).

9. A base station, characterized in that, The device includes a base station equipment and a Pisa antenna structure (600), the Pisa antenna structure (600) being provided with a high-gain antenna as described in any one of claims 1 to 8, the base station equipment being connected to the feed structure (400).

10. A base station according to claim 9, characterized in that, The Pisa antenna structure (600) includes an adjustment mechanism connected to the high-gain antenna, the adjustment mechanism being used to adjust the orientation of the metal radiating patch (300).

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