A special layout of antenna array

Abstract

A special layout antenna array includes three low-frequency radiating units placed in three rows, at least ten high-frequency radiating units divided into four groups of high-frequency arrays and reflectors, the first group of high-frequency arrays is located between the first row of low-frequency radiating units and the second row of low-frequency radiating units, the first group of high-frequency arrays is composed of an even number of high-frequency radiating units, and is neatly arranged side by side in two columns, the second group of high-frequency arrays is arranged in one column on the left side of the second row of low-frequency radiating units, the third group of high-frequency arrays is located between the second row of low-frequency radiating units and the third row of low-frequency radiating units, the third group of high-frequency arrays is composed of an even number of high-frequency radiating units, and is neatly arranged side by side in two columns, and the fourth group of high-frequency arrays is arranged in one column on the right side of the fourth row of low-frequency radiating units. This patent avoids physical interference when combining multi-frequency antenna arrays, reduces antenna size and reduces costs, improves the convergence of horizontal plane beams, reduces electromagnetic interference of radiating units in different frequency bands, and improves the overall performance of the antenna.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to an antenna array with a special layout. Background Art

[0002] With the rapid development of the communications industry, conventional single-frequency antennas can no longer meet market demand, and multi-frequency antennas have become the mainstream of antenna development. However, when antenna arrays of different frequency bands are combined together, the space is greatly limited, and the electromagnetic waves radiated by each other are absorbed and radiated by each other, which also affects the overall performance of the antenna and causes a great loss in radiation gain. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an antenna array with a special layout, which can effectively avoid physical interference when multi-frequency antenna arrays are combined, reduce antenna size, and reduce costs. At the same time, it improves the convergence of horizontal plane beams, reduces electromagnetic interference of radiation units in different frequency bands, and improves the overall performance of the antenna.

[0004] To achieve the above technical objectives, the technical solution adopted is: a specially arranged antenna array, comprising 3 low-frequency radiating units, at least 10 high-frequency radiating units and a reflector, the 3 low-frequency radiating units and at least 10 high-frequency radiating units are placed above the reflector, the 3 low-frequency radiating units are placed in 3 rows, and the at least 10 high-frequency radiating units are divided into four groups of high-frequency arrays, the first group of high-frequency arrays is located between the first row of low-frequency radiating units and the second row of low-frequency radiating units, the first group of high-frequency arrays is composed of an even number of high-frequency radiating units, and are neatly arranged side by side in 2 columns and multiple rows, the second group of high-frequency arrays is arranged in a row on the left side of the second row of low-frequency radiating units, the third group of high-frequency arrays is located between the second row of low-frequency radiating units and the third row of low-frequency radiating units, the third group of high-frequency arrays is composed of an even number of high-frequency radiating units, and are neatly arranged side by side in 2 columns and multiple rows, and the fourth group of high-frequency arrays is arranged in a row on the right side of the third row of low-frequency radiating units.

[0005] Furthermore, the two array columns of the first group of high-frequency arrays and the third group of high-frequency arrays are coaxially arranged.

[0006] Furthermore, the row spacings in the first group of high-frequency arrays and the third group of high-frequency arrays are both 90-100 mm.

[0007] Furthermore, the spacing between the first group of high-frequency arrays and the second group of high-frequency arrays is 95-105 mm, and the spacing between the second group of high-frequency arrays and the third group of high-frequency arrays is 95-105 mm.

[0008] Furthermore, the number of high-frequency radiation units in the second high-frequency array and the fourth high-frequency array is one, the second high-frequency array and the second row of low-frequency radiation units are arranged on the same horizontal line, and the fourth high-frequency array and the third row of low-frequency radiation units are arranged on the same horizontal line.

[0009] Furthermore, a first row of low-frequency radiation units is provided on the central axis of the first group of high-frequency arrays.

[0010] Furthermore, the second row of low-frequency radiation units and the third row of low-frequency radiation units are arranged in parallel.

[0011] Furthermore, the distance between the central axis of the second group of high-frequency arrays and the central axis of the left column of the first group of high-frequency arrays is 12-18 mm.

[0012] Furthermore, the distance between the central axis of the fourth group of high-frequency arrays and the central axis of the right column of the third group of high-frequency arrays is 12-18 mm.

[0013] The beneficial effects of the present invention are: a specially arranged antenna array, which utilizes the characteristic of a unit with a 65° beam width to be staggered and placed in the array, and forms a horizontal beam width of 33-48° as a whole, thereby reducing the number of units, saving space and reducing the mutual influence of dual-frequency antennas. For antennas with higher gain requirements, the present invention can save more units than conventional methods, and does not affect the overall performance of the antenna array. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of a conventional antenna array;

[0016] Figure 3 The horizontal plane beam width simulation data of the high frequency part of the present invention;

[0017] Figure 4 This is the simulation data of the vertical beam width of the high frequency part of the present invention. DETAILED DESCRIPTION

[0018] An antenna array with a special layout includes 3 low-frequency radiating units, at least 10 high-frequency radiating units and a reflector, wherein the 3 low-frequency radiating units and the at least 10 high-frequency radiating units are placed above the reflector, the bottoms of all the low-frequency radiating units and the high-frequency radiating units are located on the same horizontal plane, the 3 low-frequency radiating units are placed in 3 rows, and the at least 10 high-frequency radiating units are divided into four groups of high-frequency arrays, the first group of high-frequency arrays is located between the first row of low-frequency radiating units and the second row of low-frequency radiating units, the first group of high-frequency arrays is composed of an even number of high-frequency radiating units, and are neatly arranged side by side in 2 columns and multiple rows, for example: when the first high-frequency array includes 6 high-frequency radiating units, the first high-frequency array includes 6 The high-frequency radiation units are arranged in 2 columns and 3 rows, and the high-frequency radiation units in each row are arranged on the same horizontal line. The second group of high-frequency arrays are arranged in a column on the left side of the second row of low-frequency radiation units, that is, the second group of high-frequency arrays and the second row of low-frequency radiation units are in the same row, and the third group of high-frequency arrays are located between the second row of low-frequency radiation units and the third row of low-frequency radiation units. The third group of high-frequency arrays is composed of an even number of high-frequency radiation units, and are neatly arranged side by side in 2 columns and multiple rows. The arrangement method of the third group of high-frequency arrays is the same as that of the first group of high-frequency arrays. The fourth group of high-frequency arrays are arranged in a column on the right side of the third row of low-frequency radiation units, and the fourth group of high-frequency arrays and the third row of low-frequency radiation units are in the same row.

[0019] Furthermore, the two columns of the first group of high-frequency arrays and the third group of high-frequency arrays are coaxially arranged, that is, the left column of the first group of high-frequency arrays is coaxially arranged with the left column of the third group of high-frequency arrays, and the right column of the first group of high-frequency arrays is coaxially arranged with the right column of the third group of high-frequency arrays.

[0020] Furthermore, the row spacings in the first group of high-frequency arrays and the third group of high-frequency arrays are both 90-100 mm, two high-frequency radiation units form a row, and the spacing between two adjacent rows in the same high-frequency array is 90-100 mm.

[0021] Furthermore, the spacing between the first group of high-frequency arrays and the second group of high-frequency arrays is 95-105mm, that is, the spacing between the last row of the first group of high-frequency arrays and the first row of the second group of high-frequency arrays is 95-105mm, and the spacing between the second group of high-frequency arrays and the third group of high-frequency arrays is 95-105mm, that is, the spacing between the last row of the second group of high-frequency arrays and the first row of the third group of high-frequency arrays is 95-105mm.

[0022] Furthermore, the number of high-frequency radiation units in the second high-frequency array and the fourth high-frequency array is one, the second high-frequency array and the second row of low-frequency radiation units are arranged on the same horizontal line, and the fourth high-frequency array and the third row of low-frequency radiation units are arranged on the same horizontal line.

[0023] Furthermore, a first row of low-frequency radiation units is provided on the central axis of the first group of high-frequency arrays.

[0024] Furthermore, the second row of low-frequency radiation units and the third row of low-frequency radiation units are arranged in parallel, and the optimal setting position is that the second row of low-frequency radiation units are located on the central axis of the right column of the first high-frequency array, and the third row of low-frequency radiation units are located on the central axis of the left column of the third high-frequency array.

[0025] Furthermore, the distance between the central axis of the second group of high-frequency arrays and the central axis of the left column of the first group of high-frequency arrays is 12-18 mm.

[0026] Furthermore, the distance between the central axis of the fourth group of high-frequency arrays and the central axis of the right column of the third group of high-frequency arrays is 12-18 mm.

[0027] Example 1

[0028] like Figure 1 As shown, an antenna array with a special layout includes a reflector 0a, 10 high-frequency radiation units 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j and 3 low-frequency radiation units 2a, 2b, 2c.

[0029] The high-frequency radiation unit and the bottom of the low-frequency radiation unit are located at the same horizontal line, placed above the reflection plate, and in close contact with the reflection plate.

[0030] The 10 high-frequency radiation units are placed in 6 rows and 2 columns. The high-frequency radiation units in the 1st and 2nd rows are the first group of high-frequency arrays, the high-frequency radiation units in the 3rd row are the second group of high-frequency arrays, the high-frequency radiation units in the 4th and 5th rows are the third group of high-frequency arrays, and the high-frequency radiation units in the 6th row are the fourth group of high-frequency arrays. The 3 low-frequency radiation units are placed in 3 rows and 1 column.

[0031] After the high frequency and low frequency arrays are formed, the first row is the low frequency radiation unit 2a, the second row is the high frequency radiation units 1a and 1b, the third row is the high frequency radiation units 1c and 1d, the fourth row is the high frequency radiation units 1e and the low frequency radiation unit 2b, the fifth row is the high frequency radiation units 1f and 1g, the sixth row is the high frequency radiation units 1h and 1i, and the seventh row is the low frequency radiation unit 2c and the high frequency radiation unit 1j.

[0032] The first row of low-frequency radiation units and the first, second, fourth and fifth rows of high-frequency radiation units are located at the central axis. The third row of high-frequency radiation units are offset 15 mm to the left compared to the left column of high-frequency radiation units. The sixth row of high-frequency radiation units are offset 15 mm to the right compared to the right column of high-frequency radiation units.

[0033] The row spacing of high-frequency radiation units in the first and third high-frequency arrays is 95 mm, the row spacing of high-frequency radiation units in the second and third rows is 100 mm, and the row spacing of high-frequency radiation units in the third and fourth rows is 100 mm.

[0034] like Figure 2 As shown in FIG. 1 , the conventional 33-48° high frequency array is arranged with 6 rows and 2 columns, a total of 12 units. Under the reflector of the same size, it is difficult to place the low frequency radiation unit. The present invention places the high frequency unit 1e of the 4th row and the high frequency unit 1j of the 7th row in a staggered manner. After the array is formed, the original horizontal plane lobe width of 65° is formed into a horizontal plane lobe width of 33-48° as a whole. While reducing 2 units, the mutual interference between high frequency and low frequency is also reduced, thereby improving the overall performance of the antenna. Figure 3 , Figure 4 As shown in the figure, no matter when simulating horizontal surface waves or vertical surface waves, the antenna beam width of the antenna array in various frequency bands is stable.

Claims

1. An antenna array with a special layout, characterized in that: The invention comprises 3 low-frequency radiation units, at least 10 high-frequency radiation units and a reflection plate, wherein the 3 low-frequency radiation units and the at least 10 high-frequency radiation units are placed above the reflection plate, the 3 low-frequency radiation units are placed in 3 rows, and the at least 10 high-frequency radiation units are divided into four groups of high-frequency arrays, wherein the first group of high-frequency arrays is located between the low-frequency radiation units in the first row and the low-frequency radiation units in the second row, the first group of high-frequency arrays is composed of an even number of high-frequency radiation units, and are neatly arranged side by side in 2 columns and multiple rows, the second group of high-frequency arrays is arranged in a row on the left side of the low-frequency radiation units in the second row, the third group of high-frequency arrays is located between the low-frequency radiation units in the second row and the low-frequency radiation units in the third row, the third group of high-frequency arrays is composed of an even number of high-frequency radiation units, and are neatly arranged side by side in 2 columns and multiple rows, the two columns of the first group of high-frequency arrays and the third group of high-frequency arrays are coaxially arranged, the fourth group of high-frequency arrays is arranged in a row on the right side of the low-frequency radiation units in the third row, and the low-frequency radiation units in the first row are arranged on the central axis of the first group of high-frequency arrays, The second row of low-frequency radiation units is located on the central axis of the right column of the first high-frequency array, and the third row of low-frequency radiation units is located on the central axis of the left column of the third high-frequency array. The number of high-frequency radiation units in the second group of high-frequency arrays and the fourth group of high-frequency arrays is one. The second group of high-frequency arrays and the second row of low-frequency radiation units are arranged on the same horizontal line, and the fourth group of high-frequency arrays and the third row of low-frequency radiation units are arranged on the same horizontal line.

2. The antenna array with a special layout as claimed in claim 1, characterized in that: The row spacing in the first high-frequency array and the third high-frequency array is 90-100 mm.

3. The antenna array with a special layout as claimed in claim 1, characterized in that: The spacing between the first group of high-frequency arrays and the second group of high-frequency arrays is 95-105 mm, and the spacing between the second group of high-frequency arrays and the third group of high-frequency arrays is 95-105 mm.

4. The antenna array with a special layout as claimed in claim 1, characterized in that: The distance between the central axis of the second group of high-frequency arrays and the central axis of the left column of the first group of high-frequency arrays is 12-18 mm.

5. The antenna array with a special layout as claimed in claim 1, characterized in that: The distance between the central axis of the fourth group of high-frequency arrays and the central axis of the right column of the third group of high-frequency arrays is 12-18 mm.

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