A Broadband Omnidirectional Slanted Polarized Antenna for Metal Carriers
A metal carrier, oblique polarization technology, applied in the direction of antenna, antenna grounding device, electrical components, etc., can solve the problem that the antenna cannot be applied to the surface of the metal carrier
Active Publication Date: 2020-08-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
A broadband obliquely polarized omnidirectional antenna is proposed in the paper "Design of 45° Obliquely Polarized Omnidirectional Antenna", which realizes omnidirectional radiation and broadband obliquely polarized electromagnetic waves, but this antenna cannot be applied to the surface of a metal carrier
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[0030] A broadband omnidirectional obliquely polarized antenna for metal carriers, such as figure 1 As shown in (a), it includes two parts: a monocone antenna and a hollow cylindrical oblique polarizer positioned at the outside of the monocone antenna;
[0031] Such as figure 1 Shown in (b), be the sectional view of described monocone antenna; Described monocone antenna is copper, and its height is 21mm, and upper radius is 11.5mm, and lower radius is 1mm, and floor diameter is 100mm, can produce 6-18GHz Vertically polarized electromagnetic waves that radiate omnidirectionally.
[0032] The hollow cylindrical oblique polarizer includes 4 layers of coaxial polarization grids, and each layer of polarization grids is composed of metal strips formed by copper foils arranged in parallel covering the side of the hollow dielectric cylinder, wherein the first layer of polarization The angle between the metal strips in the grid and the floor of the monocone antenna is 0 degrees, the ...
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The invention relates to a broadband omnidirectional obliquely polarized antenna for a metal carrier, which belongs to the technical field of wireless communication. The obliquely polarized antenna includes a monoconical antenna and a hollow cylindrical oblique polarizer positioned outside the monoconical antenna, the axis of the monoconical antenna coincides with the hollow cylindrical oblique polarizer, and the spacing is 0.1λ 0 ~0.3λ 0 ; The hollow cylindrical oblique polarizer includes n layers of coaxial polarization grids, wherein each layer of polarization grids is composed of metal strips arranged in parallel covering the side of the hollow dielectric cylinder, and the n layers of polarization grids are from the inner to the The outside is sequentially represented as the first, second, ..., n-layer polarization grids, and the angle between the metal strips in the first, second, ..., n-layer polarization grids and the floor of the monoconical antenna is 0, θ 1 , θ 2 ..., θ n‑2 , θ n‑1 , where θ n‑1 = 40~60 degrees, 0 <θ 1 <θ 2<…. <θ n‑2 <θn-1. The invention generates broadband omnidirectional radiation electromagnetic waves through a single cone antenna, and then twists the vertically polarized electromagnetic waves into obliquely polarized electromagnetic waves through a grounded oblique polarizer, which has the characteristics of broadband and omnidirectional radiation.< / θ < / θ < / θ < / θ
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a broadband omnidirectional obliquely polarized antenna for a metal carrier. Background technique [0002] In wireless communication, the antenna is mainly used to radiate the electrical signal in the transmitter to the free space, or convert the electromagnetic wave signal in the space into an electrical signal and transmit it to the receiver. The transmitting antenna mainly controls the electromagnetic wave power distribution in the free space and the polarization mode of the electromagnetic wave, while the signal processing is completed by other modules in the communication system. With the rapid development of electronic technology and the constant change of the electromagnetic signal environment, the requirements for antennas are getting higher and higher. Require. Among them, in some application environments such as indoor base stations, moving ...
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IPC IPC(8): H01Q15/24H01Q1/36H01Q1/48
CPCH01Q1/36H01Q1/48H01Q15/242
Inventor 文成纲宗显政黄麒力聂在平
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA