A broadband antenna for LTE network coverage of 4G
A network coverage and broadband technology, applied in the field of broadband antennas, can solve problems such as cost increase and overall antenna volume increase, and achieve the effects of widening bandwidth, reducing structural parameters, and suppressing second harmonics
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Embodiment 1
[0035] Such as figure 1 A wide-band antenna for 4G LTE network coverage shown in Embodiment 1 includes a dielectric substrate 1 made of a PCB, an antenna body arranged on the front of the dielectric substrate and an aluminum sheet covering the back of the dielectric substrate. reflective layer, and a 50Ω microstrip feeder 2 is arranged on the central axis of the dielectric substrate.
[0036] The antenna body is composed of several low-frequency radiation units 3 forming a low-frequency radiation array and several high-frequency radiation units 4 high-frequency radiation arrays. The two sets of arrays are arranged in parallel. are coupled to the microstrip feeder 2 respectively. The outer peripheries of the two arrays are respectively surrounded by a rectangular metal frame fixed on the dielectric substrate. A groove is arranged between the rectangular metal frame and the dielectric substrate. The groove forms a radiation gap 5, and the outer circle of the low-frequency radia...
Embodiment 2
[0040] Such as figure 2 , Embodiment 2 provides a broadband antenna for 4G LTE network coverage, including a dielectric substrate 1 made of a PCB, an antenna body arranged on the front of the dielectric substrate, and a reflector made of an aluminum sheet covering the back of the dielectric substrate. layer, a 50Ω microstrip feeder 2 is arranged on the central axis of the dielectric substrate.
[0041] The antenna body is composed of several low-frequency radiation units 3 forming a low-frequency radiation array and several high-frequency radiation units 4 and a high-frequency radiation array. The microstrip feeders 2 are left-right symmetrical, and are respectively coupled to the microstrip feeders 2 . The outer peripheries of the two arrays are respectively surrounded by a rectangular metal frame fixed on the dielectric substrate. A groove is arranged between the rectangular metal frame and the dielectric substrate. The groove forms a radiation gap 5, and the outer circle ...
Embodiment 3
[0045] This embodiment provides a method for manufacturing a broadband antenna for 4G LTE network coverage, the specific steps are:
[0046] (1) Take a rectangular PCB to make a dielectric substrate, and cover the back of the dielectric substrate with an aluminum sheet as a reflective layer. The size of the aluminum sheet is consistent with the size of the PCB board;
[0047] (2) Lay a microstrip feeder on the front of the PCB board. The microstrip feeder is made of metal sheet. The back of the microstrip feeder is attached with a thin metal layer as a grounding plate. strip;
[0048] (3) A rectangular metal frame is inlaid on the PCB boards on both sides of the microstrip feeder, respectively, the first metal frame 6a and the second metal frame 6b, and the upper side of the two metal frames passes close to the microstrip feeder One side extends all the way to the lower side of the corresponding metal frame and engraves a groove respectively. The groove forms a radiation gap ...
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