An air gap broadband dual-polarization antenna

Abstract

The present invention discloses an air gap broadband dual-polarized antenna, comprising a box body, in which an antenna body and a bottom plate are arranged, the antenna body is a shell structure, the bottom of the antenna body is provided with a connecting plate connected to the bottom plate, the top of the antenna body is a first radiating element parallel to the bottom plate, a second radiating element is bent upward on the bottom plate, a third radiating element is bent inwardly on the side of the antenna body, the first radiating element, the second radiating element and the third radiating element are parallel to each other, the third radiating element, the second radiating element and the first radiating element are arranged in sequence along a direction away from the bottom plate, the width of the third radiating element is smaller than the width of the second radiating element, and the width of the second radiating element is smaller than the width of the first radiating element; the signal input end of the antenna body is connected to one end of a radio frequency transmission line, and the other end of the radio frequency transmission line extends out of the box body.

Description

Technical Field

[0001] The invention relates to the field of indoor communication, and in particular to an air gap broadband dual-polarization antenna. Background Art

[0002] At present, the antennas used in indoor 5G signal communications have the disadvantages of large size, difficult processing, and high cost. Moreover, the radiation efficiency of traditional 5G antennas is low and the broadband of the antenna cannot be guaranteed. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides an air gap broadband dual-polarized antenna, which adopts a one-time molding process, is easy to process, convenient to produce, and has low cost. Air gaps are set between each level of radiating elements, and the relative dielectric constant between the two layers of radiating elements is reduced, thereby suppressing the stray wave crosstalk between the radiating elements, so that the antenna has high frequency and broadband.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] An air gap broadband dual-polarized antenna comprises a box body, the box body comprises a base, a bottom plate is provided on the base, two antenna bodies are provided on the bottom plate and are distributed in a mirror-symmetrical manner, the antenna body and the bottom plate are both made of copper-clad material, and a cover plate covering the antenna body and the bottom plate is provided on the base; the antenna body is a shell structure, the bottom of the antenna body has a connecting plate connected to the bottom plate, the top of the antenna body is a first radiating element parallel to the bottom plate, a second radiating element parallel to the bottom plate is bent on the bottom plate toward a side away from the base, a third radiating element is bent inwardly on the side of the antenna body, the first radiating element, the second radiating element and the third radiating element are parallel to each other, the third radiating element, the second radiating element and the first radiating element are arranged in sequence in a direction away from the bottom plate, the width of the third radiating element is smaller than the width of the second radiating element, and the width of the second radiating element is smaller than the width of the first radiating element; the signal input end of the antenna body is connected to one end of a radio frequency transmission line, and the other end of the radio frequency transmission line extends out of the box body.

[0006] The present invention forms a dual-polarized antenna by arranging two antenna bodies in mirror symmetry. Moreover, the antenna body is formed by integral stamping, which is convenient to process and low in cost. The radiation elements of each level on the antenna body are arranged in a highly progressive step-like manner. The medium between each level of radiation element and the bottom plate, and between each level of radiation element is an air gap, so that the relative dielectric constant between the two layers of radiation elements is reduced, and the stray wave crosstalk between the radiation elements is suppressed, so that the antenna has high frequency and broadband characteristics.

[0007] Preferably, a support is provided between the first radiating element and the base plate, which is conducive to fixing the antenna body and ensuring the stability of the antenna body structure.

[0008] Preferably, an opening is provided in the middle of the first radiation element, which can reduce the use of unnecessary materials and reduce the stray wave crosstalk between radiation elements of each level.

[0009] Preferably, a connecting column is provided on one side of the base away from the bottom plate, and the RF transmission line passes through the connecting column, and an adjustment plate is threadedly connected to the connecting column. The arrangement of the connecting column and the adjustment plate facilitates hanging the antenna on the ceiling. At the same time, the RF transmission line is led out from the connecting column to above the ceiling, thereby realizing wiring above the ceiling, increasing the concealment of the antenna, and allowing it to better integrate into the indoor environment.

[0010] The beneficial effects of the present invention are:

[0011] 1. The present invention forms a dual-polarized antenna by arranging two antenna bodies in mirror symmetry. Moreover, the antenna body is formed by integral stamping, which is convenient to process and low in cost. The radiation elements of each level on the antenna body are arranged in a highly progressive step-like manner. The medium between each level of radiation element and the base plate, and between each level of radiation elements is an air gap, so that the relative dielectric constant between the two layers of radiation elements is reduced, and the stray wave crosstalk between the radiation elements is suppressed, so that the antenna has high frequency and broadband characteristics.

[0012] 2. A support is provided between the first radiating element and the bottom plate, which is conducive to fixing the antenna body and ensuring the stability of the antenna body structure.

[0013] 3. An opening is provided in the middle of the first radiation element, which can reduce the use of unnecessary materials and reduce the stray wave crosstalk between radiation elements of each level.

[0014] 4. The setting of the connecting column and the adjustment plate makes it convenient to hang the antenna on the ceiling. At the same time, the RF transmission line is led out from the connecting column to the top of the ceiling, realizing the wiring above the ceiling, increasing the concealment of the antenna and making it better integrated into the indoor environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the air gap broadband dual-polarized antenna according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the air gap broadband dual-polarized antenna according to an embodiment of the present invention;

[0017] Figure 3 It is a side view of the antenna body described in the embodiment of the present invention.

[0018] Description of reference numerals:

[0019] 1. Cover plate; 2. Base; 3. RF transmission line; 4. Connecting column; 5. Adjustment plate; 6. Antenna body; 601. First radiating element; 602. Second radiating element; 603. Third radiating element; 604. Opening; 7. Bottom plate; 8. Pillar. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] Example:

[0022] like Figure 1-Figure 3 As shown, an air gap broadband dual-polarized antenna comprises a box body, the box body comprises a base 2, the base 2 is provided with a bottom plate 7, the bottom plate 7 is provided with two antenna bodies 6 distributed in a mirror-symmetrical manner, the antenna bodies 6 and the bottom plate 7 are both made of copper-clad materials, the base 2 is provided with a cover plate 1 covering the antenna body 6 and the bottom plate 7; the antenna body 6 is a shell structure, the bottom of the antenna body 6 has a connecting plate connected to the bottom plate 7, the top of the antenna body 6 is a first radiating element 601 parallel to the bottom plate 7, and the bottom plate 7 is bent toward the side away from the base 2 with a second radiating element 601 parallel to the bottom plate 7 Element 602, a third radiating element 603 is bent inward on the side of the antenna body 6, the first radiating element 601, the second radiating element 602 and the third radiating element 603 are parallel to each other, the third radiating element 603, the second radiating element 602 and the first radiating element 601 are arranged in sequence along the direction away from the bottom plate 7, the width of the third radiating element 603 is smaller than the width of the second radiating element 602, and the width of the second radiating element 602 is smaller than the width of the first radiating element 601; the signal input end of the antenna body 6 is connected to one end of the RF transmission line 3, and the other end of the RF transmission line 3 extends out of the box body.

[0023] The present invention forms a dual-polarized antenna by arranging two antenna bodies 6 in mirror symmetry. Moreover, the antenna body 6 is formed by integral stamping, which is easy to process and low in cost. The radiation elements of each level on the antenna body 6 are arranged in a highly progressive step. The medium between each level of radiation element and the base plate 7, and between each level of radiation elements is an air gap, so that the relative dielectric constant between the two layers of radiation elements is reduced, and the stray wave crosstalk between the radiation elements is suppressed, so that the antenna has high frequency and broadband characteristics.

[0024] In another embodiment, if Figure 3 As shown, a support 8 is provided between the first radiating element 601 and the bottom plate 7, which is beneficial for fixing the antenna body 6 and ensuring the stability of the structure of the antenna body 6.

[0025] In another embodiment, if Figure 2 As shown, an opening 604 is provided in the middle of the first radiation element 601, which can reduce the use of unnecessary materials and reduce the stray wave crosstalk between radiation elements of each level.

[0026] In another embodiment, if Figure 1 As shown, a connecting column 4 is provided on one side of the base 2 away from the bottom plate 7, and the RF transmission line 3 passes through the connecting column 4. An adjusting plate 5 is threadedly connected to the connecting column 4. The arrangement of the connecting column 4 and the adjusting plate 5 facilitates the antenna to be suspended on the ceiling. At the same time, the RF transmission line 3 is led out from the connecting column 4 to the top of the ceiling, thereby realizing the wiring above the ceiling, increasing the concealment of the antenna, and allowing it to better integrate into the indoor environment.

[0027] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An air gap broadband dual-polarization antenna, characterized in that: The box body includes a base, the base is provided with a bottom plate, the bottom plate is provided with two antenna bodies distributed in a mirror-symmetrical manner, the antenna bodies and the bottom plate are both made of copper-clad materials, and the base is provided with a cover plate covering the antenna bodies and the bottom plate; The antenna body is a shell structure, the bottom of the antenna body has a connecting plate connected to the bottom plate, the top of the antenna body is a first radiating element parallel to the bottom plate, the bottom plate is bent with a second radiating element on a side facing away from the base, the side of the antenna body is bent with a third radiating element inward, the first radiating element, the second radiating element and the third radiating element are parallel to each other, the third radiating element, the second radiating element and the first radiating element are arranged in sequence in a direction away from the bottom plate, the width of the third radiating element is smaller than the width of the second radiating element, and the width of the second radiating element is smaller than the width of the first radiating element; The signal input end of the antenna body is connected to one end of a radio frequency transmission line, and the other end of the radio frequency transmission line extends out of the box body; A support is provided between the first radiation element and the bottom plate; An opening is provided in the middle of the first radiation element; A connecting column is provided on one side of the base away from the bottom plate, the RF transmission line passes through the connecting column, and an adjusting plate is threadedly connected to the connecting column; The medium between each level of radiation element and the base plate, and between each level of radiation element is an air gap.

Images