Base station sector antenna for wireless metropolitan area network
A wireless metropolitan area network and sector antenna technology is applied in the field of sector antennas for base stations used in wireless metropolitan area networks, and can solve the problems of increased antenna thickness, long total feeder length, and high manufacturing costs
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[0016] Such as figure 1 , figure 2 As shown, a base station sector antenna for a wireless metropolitan area network has a three-layer structure consisting of a dielectric plate 1, a foam medium 2, and a metal reflective back plate 3 from top to bottom, wherein the dielectric plate 1 can be made of polytetrafluoroethylene Ethylene, the foam medium 2 can be made of expandable polyethylene (also known as pearl cotton), and the metal reflective backboard 3 can be made of iron, aluminum, copper and other materials. The upper surface of the dielectric board 1 is provided with a feeder 4, and the lower surface of the dielectric board 1 is provided with a gap 5 surrounded by a metal ground 6. The number and arrangement of the gaps are two columns and eight rows. The feeder 4 adopts a feeding method combining series and parallel, and the current is in the form of a non-equiradial feeder that decreases from the middle to both ends.
[0017] The specific description is as follows:
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