A dual polarized antenna

Abstract

The utility model discloses a kind of dual-polarized antennas, including shell, horizontal polarization part and vertical polarization part, the horizontal polarization part includes array arrangement's arrowhead type oscillator and arc dipole, the arc dipole is located the top of arrowhead type oscillator, the vertical polarization part includes columnar antenna and assembly circuit board, the arc dipole, arrowhead type oscillator and columnar antenna are electrically connected the assembly circuit board, by using including array arrangement's arrowhead type oscillator and arc dipole as horizontal polarization part, also using including columnar antenna and assembly circuit board as vertical polarization part;Array arrangement makes the range of effective gain increase, can make the signal intensity of antenna in horizontal direction strengthen, to expand communication coverage range;Two different polarized signals can also be received, and all are omnidirectional reception, and reception effect is good.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, and in particular to a dual-polarized antenna. Background Technology

[0002] An antenna is a component in wireless equipment used to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy all rely on antennas to operate if they use electromagnetic waves to transmit information.

[0003] With the increasing popularity of wireless digital television signals, more and more people are receiving television signals outdoors or while on the move, no longer limited to indoors. Outdoor television reception, especially while on the move, is commonly seen in RVs or yachts, where the vehicle or boat constantly changes direction, causing the receiving antenna's position to change continuously.

[0004] Most mobile antennas on the market, such as RV antennas or yacht antennas, have strong directivity and single polarization, but their effective gain range is narrow and they are greatly affected by the base station and the surrounding environment. The TV signal is relatively strong in one fixed direction and very weak in other directions. After the vehicle or boat moves, the antenna direction needs to be readjusted to achieve the best reception effect. Utility Model Content

[0005] The purpose of this invention is to provide a dual-polarized antenna that does not require adjustment of the antenna direction with movement, thereby solving the problems mentioned in the background art.

[0006] The technical solution of this utility model is as follows:

[0007] A dual-polarized antenna includes a housing, a horizontal polarization section, and a vertical polarization section. The horizontal and vertical polarization sections work together to simultaneously receive two orthogonally polarized signals. When vehicle / ship movement causes attenuation of one polarization signal (e.g., vertical polarization is blocked), the other polarization signal (horizontal polarization) remains stable, reducing signal dead zones and eliminating the need for frequent antenna orientation adjustments. The horizontal polarization section includes an array of arrow-shaped dipoles and arc-shaped dipoles, with the arc-shaped dipoles positioned above the arrow-shaped dipoles. The vertical polarization section includes a columnar antenna and an assembly circuit board. The arc-shaped dipoles, four arrow-shaped dipoles, and the columnar antenna are all electrically connected to the assembly circuit board. By changing the shape of the traditional dipoles and dipoles, specifically the array of arrow-shaped dipoles, the horizontal radiation intensity is enhanced through the array layout, expanding the high-gain angle range. The arc-shaped structure of the arc-shaped dipoles can supplement the radiation pattern in other directions, compensating for the excessive directivity of traditional antennas and achieving more uniform omnidirectional coverage.

[0008] The possible array arrangement schemes are: four, six, or eight arrow-shaped oscillators.

[0009] Furthermore, since excessively small spacing between the elements can lead to mutual interference, reduce radiation efficiency, and even alter impedance characteristics, the system also includes several antenna decouplings. These decouplings are located between two adjacent arrow-shaped elements to reduce mutual interference between the arrayed elements.

[0010] Furthermore, the arrow-shaped oscillator includes an arrowhead portion and an arrow body portion, wherein the arrow body portion is provided with insulated parallel lines.

[0011] Furthermore, the columnar antenna includes an antenna rod, a screw, a washer, a nut, and an antenna head. One end of the antenna rod is electrically connected to the assembly circuit board. One end of the screw is engaged with the other end of the antenna rod. The washer is sleeved on the screw. The nut is threadedly engaged with the screw and fixes the washer to the screw. The antenna head is threadedly connected to the other end of the screw and is located above the nut.

[0012] Furthermore, the housing includes a barrel-shaped shell, a disk top shell, a disk bottom shell, and a support. The disk top shell covers the disk bottom shell, the barrel-shaped shell is disposed on the disk top shell, and the support is disposed below the disk bottom shell.

[0013] Furthermore, the bottom shell of the disc is provided with several locking positions, which are used to place the arrow-shaped oscillator and the arc-shaped dipole.

[0014] Furthermore, a cylindrical base extends from the bottom of the disc base, the cylindrical base having a first through hole and the support having a second through hole, the first through hole and the second through hole being aligned, and the cylindrical base and the support being fixed by bolts and nuts.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By employing arrow-shaped dipoles and arc-shaped dipoles arranged in an array as the horizontal polarization section, the arrow-shaped dipoles arranged in an array can expand the high-gain angle range, which can enhance the signal strength of the antenna in the horizontal direction. The arc-shaped structure of the arc-shaped dipoles can supplement the radiation field pattern in other directions, achieving more uniform omnidirectional coverage. Furthermore, a columnar antenna and an assembled circuit board are used as the vertical polarization section, which can receive signals with two different polarizations, reduce signal dead zones, eliminate the need for frequent antenna direction adjustments, and provide omnidirectional reception with good reception performance. Attached Figure Description

[0017] Figure 1 This is an exploded structural diagram of a dual-polarized antenna according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a dual-polarized antenna of the present invention, with the housing omitted and the columnar antenna in an exploded state.

[0019] Figure 3 This is an exploded structural diagram of the disk base and support of a dual-polarized antenna according to this utility model.

[0020] Figure 4 This is a schematic diagram of the overall structure of a dual-polarized antenna according to a utility model.

[0021] Figure 5 This is a schematic diagram of the exploded structure of the barrel-shaped shell of a dual-polarized antenna according to this utility model.

[0022] Reference numerals: 1. Shell, 11. Barrel-shaped shell, 12. Top shell of disc, 13. Bottom shell of disc, 131. Locking position, 132. Cylinder base, 133. First through hole, 14. Support, 141. Second through hole, 15. Bolt and nut, 2. Horizontal polarization section, 3. Vertical polarization section, 4. Arrow-shaped vibrator, 41. Arrowhead section, 42. Arrow body section, 421. Insulated parallel line, 5. Arc-shaped dipole, 6. Columnar antenna, 61. Antenna mast, 62. Screw, 63. Washer, 64. Nut, 65. Antenna head, 7. Assembly circuit board, 8. Antenna decoupling. Detailed Implementation

[0023] Please refer to Figures 1-5This invention provides a dual-polarized antenna, comprising a housing 1, a horizontally polarized section 2, and a vertically polarized section 3. The horizontally polarized section 2 includes four arrow-shaped elements 4 and an arc-shaped dipole 5 arranged in an array, with the arc-shaped dipole 5 positioned above the four arrow-shaped elements 4. The vertically polarized section 3 includes a cylindrical antenna 6 and an assembly circuit board 7. The arc-shaped dipole 5, the four arrow-shaped elements 4, and the cylindrical antenna 6 are all electrically connected to the assembly circuit board 7. This antenna can simultaneously receive horizontally and vertically polarized signals. In practical environments, the polarization direction of signals is complex and variable. The reception performance may change due to factors such as the location of the transmitter and reflections from surrounding objects. Traditional single-polarized antennas can only receive signals in one polarization direction. When the signal polarization direction changes, the reception performance deteriorates significantly, requiring readjustment of the antenna direction to maintain good reception. This novel dual-polarized antenna, however, can process signals in two polarization directions simultaneously, maintaining good reception performance regardless of changes in signal polarization direction, thus reducing the need for readjustment. The four arrow-shaped elements 4 arranged in the array enhance the antenna's performance in... The antenna boasts excellent horizontal radiation and reception capabilities. Furthermore, by optimizing the array spacing and feeding method, a wider horizontal beamwidth can be achieved, increasing the effective gain range. The arc-shaped dipole 5, positioned above the four arrow-shaped elements 4, further optimizes the antenna's radiation pattern and expands its signal coverage. The cylindrical antenna 6 of the vertical polarization section 3 also provides some vertical coverage. Overall, this antenna offers good coverage in both the horizontal and vertical directions, making it more likely to remain within effective signal coverage during movement and reducing the likelihood of signal loss requiring readjustment. Compared to traditional linear dipoles, the arc-shaped structure of the arc-shaped dipole 5 allows for more uniform radiation and reception of electromagnetic waves, reducing dependence on specific directions. In environments with various reflectors and obstacles, the arc-shaped dipole 5 can better adapt to different reflection paths, reducing signal interference and fading caused by environmental reflections. Simultaneously, the arc-shaped structure reduces the antenna's directivity sensitivity to the surrounding environment, ensuring relatively stable performance under incident signals at different angles.

[0024] It is worth noting that increasing the number of oscillators can improve signal strength within a certain range, but this must be considered in conjunction with directional requirements, physical limitations, and cost-effectiveness. In practical designs, the quality of the oscillators (layout, isolation, excitation method) is more important than the sheer number. This embodiment achieves wide coverage of dual polarization within a limited volume by using a combination of four arrow-shaped oscillators and an arc-shaped dipole, rather than blindly stacking oscillators.

[0025] Specifically, the four arrow-shaped oscillators 4 arranged in the array are for the UHF band, and the arc-shaped dipoles 5 are for the VHF band.

[0026] In addition, the assembly circuit board 7 integrates signal processing circuits such as power dividers, filters, and amplifiers. These circuits can separate, filter, and amplify signals with different polarization directions and frequency bands, improving signal quality and strength. Simultaneously, the assembly circuit board 7 also performs impedance matching, ensuring good matching between the antenna and backend equipment, reducing signal reflection and loss. Thus, even if the antenna experiences some interference or positional changes during movement, the circuit board's processing ensures stable signal reception, reducing the need for readjusting the antenna direction.

[0027] Furthermore, it also includes four antenna decouplers 8, which are located between two adjacent arrow-shaped elements 4. The antenna decouplers 8 are metal sheets, which can reduce the mutual interference between the four arrow-shaped elements 4.

[0028] Furthermore, each of the arrow-shaped vibrators 4 includes an arrowhead portion 41 and a body portion 42. The body portion 42 is provided with an insulated parallel line 421. The insulated parallel line 421 mainly serves to match impedance, suppress surface current interference, and optimize radiation performance. That is, the arrow-shaped vibrator is not a simple structure, but rather significantly improves antenna performance through mechanisms such as impedance matching, decoupling, bandwidth expansion, and mechanical protection. The role of the insulated parallel line 421 is particularly important in dual-polarization, multi-element arrays, and mobile scenarios (vehicle / ship antennas).

[0029] Furthermore, the columnar antenna 6 includes an antenna rod 61, a screw 62, a washer 63, a nut 64, and an antenna head 65. One end of the antenna rod 61 is electrically connected to the assembly circuit board 7. One end of the screw 62 is engaged with the other end of the antenna rod 61. The washer 63 is sleeved inside the screw 62. The nut 64 is threadedly engaged with the screw 62 and fixes the washer 63 onto the screw 62. The antenna head 65 is threadedly connected to the other end of the screw 62 and is located above the nut 64.

[0030] Furthermore, the housing 1 includes a barrel-shaped shell 11, a disc top shell 12, a disc bottom shell 13, and a support 14. The disc top shell 12 covers the disc bottom shell 13, the barrel-shaped shell 11 is disposed on the disc top shell 12, and the support 14 is disposed below the disc bottom shell 13.

[0031] Furthermore, the disc bottom shell 13 is provided with a plurality of locking positions 131, which are used to place the arrow-shaped oscillator 4 and the arc-shaped dipole 5.

[0032] Furthermore, a cylindrical base 132 extends from the bottom of the disc base 13. The cylindrical base 132 is provided with a first through hole 133, and the support 14 is provided with a second through hole 141. The first through hole 133 and the second through hole 141 are aligned and arranged, and the cylindrical base 132 and the support 14 are fixed by bolts and nuts.

[0033] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dual-polarized antenna, comprising a housing (1), a horizontally polarized portion (2), and a vertically polarized portion (3), characterized in that, The horizontal polarization section (2) includes an array of arrow-shaped oscillators (4) and arc-shaped dipoles (5), with the arc-shaped dipoles (5) positioned above the arrow-shaped oscillators (4). The vertical polarization section (3) includes a columnar antenna (6) and an assembly circuit board (7), with the arc-shaped dipoles (5), arrow-shaped oscillators (4), and columnar antennas (6) all electrically connected to the assembly circuit board (7).

2. The dual-polarized antenna according to claim 1, characterized in that, It also includes several antenna decouplers (8), which are located between two adjacent arrow-shaped vibrators (4).

3. The dual-polarized antenna according to claim 1, characterized in that, The arrow-shaped oscillator (4) includes an arrowhead (41) and an arrow body (42), the arrow body (42) being provided with insulated parallel lines (421).

4. The dual-polarized antenna according to claim 1, characterized in that, The arrow-shaped oscillators can be any of four, six, or eight.

5. The dual-polarized antenna according to claim 1, characterized in that, The columnar antenna (6) includes an antenna rod (61), a screw (62), a washer (63), a nut (64), and an antenna head (65). One end of the antenna rod (61) is electrically connected to the assembly circuit board (7). One end of the screw (62) is clamped to the other end of the antenna rod (61). The washer (63) is sleeved on the screw (62). The nut (64) is threadedly engaged with the screw (62) and fixes the washer (63) on the screw (62). The antenna head (65) is threadedly connected to the other end of the screw (62) and is located above the nut (64).

6. The dual-polarized antenna according to claim 1, characterized in that, The housing (1) includes a barrel-shaped shell (11), a disc top shell (12), a disc bottom shell (13), and a support (14). The disc top shell (12) covers the disc bottom shell (13), the barrel-shaped shell (11) is disposed on the disc top shell (12), and the support (14) is disposed below the disc bottom shell (13).

7. The dual-polarized antenna according to claim 6, characterized in that, The disc bottom shell (13) is provided with a number of locking positions (131), which are used to place the arrow-shaped oscillator (4) and the arc-shaped dipole (5).

8. The dual-polarized antenna according to claim 7, characterized in that, A cylindrical base (132) extends from the bottom of the disc base (13). The cylindrical base (132) is provided with a first through hole (133), and the support (14) is provided with a second through hole (141). The first through hole (133) and the second through hole (141) are aligned and fixed by bolts and nuts.

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