Dual-polarized broadband antenna with slotted radiating elements
A technology of radiating element and broadband antenna, which is applied in the direction of radiating element structure and combination of antenna elements with different polarization directions, etc., can solve the problem of unsatisfactory production cost and popularization and utilization of dual-polarized broadband antenna, large size of broadband antenna, and poor structure. Complex problems, to achieve the effect of easy processing design, long bandwidth, small size
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Embodiment 1
[0056] Such as Figure 1 to Figure 9 As shown, the dual-polarized broadband antenna of this embodiment includes a metal floor 1, four reflectors 2, a first radiating unit 3, a second radiating unit 4, a third radiating unit 5 and a fourth radiating unit 6, the The first radiating unit 3 and the third radiating unit 5 are symmetrical to each other, the second radiating unit 4 and the fourth radiating unit 6 are symmetric to each other, and the shapes of the metal floor 1, the four reflecting plates 2 and the four radiating units are Rectangular; the four reflectors 2 are inclined at 45 degrees and arranged around the metal floor 1, the four radiation units are erected on the metal floor 1, and form a square box-shaped structure in the center of the metal floor 1;
[0057] The metal floor 1 is provided with a first via hole 7, a second via hole 8, a third via hole 9 and a fourth via hole 10, and the bottom surface of the metal floor 1 is provided with a first feeder 11 and a sec...
Embodiment 2
[0067] The main features of this embodiment are: as Figure 14 ~ Figure 16 As shown, two mutually symmetrical half-moon slots 27 are formed in the middle of the front of each radiation unit. All the other structures are with embodiment 1.
[0068] After adjusting the size parameters of each part of the dual-polarized broadband antenna of this embodiment, the dual-polarized broadband antenna of this embodiment is verified and simulated through calculation and electromagnetic field simulation, as shown in Figure 17 As shown, the curve of the S parameter simulation result of the antenna in the frequency range of 1.4 ~ 3Ghz is given. There are three curves in the figure. The curve of S11 refers to the return loss of the first port, and the curve of S22 refers to the return loss of the second port. return loss, the curve of S21 refers to the forward transmission coefficient from the first port to the second port; it can be seen that in the TD-LTE frequency band from 1.62GHz to 2....
Embodiment 3
[0071] The main features of this embodiment are: as Figure 21 ~ Figure 23 As shown, there are two half-moon-shaped slots 27 in the middle of the front of each radiation unit, and it can be seen from the figure that the area of one half-moon-shaped slot 27 is larger than the area of the other half-moon-shaped slot 27, That is, one is slotted for a large half-moon, and the other is slotted for a small half-moon. All the other structures are with embodiment 1.
[0072] After adjusting the size parameters of each part of the dual-polarized broadband antenna of this embodiment, the dual-polarized broadband antenna of this embodiment is verified and simulated through calculation and electromagnetic field simulation, as shown in Figure 24 As shown, the curve of the S parameter simulation result of the antenna in the frequency range of 1.4 ~ 3Ghz is given. There are three curves in the figure. The curve of S11 refers to the return loss of the first port, and the curve of S22 re...
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