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Omnidirectional double-wideband dual polarized antenna applied to indoor distribution system

An indoor distribution system and dual-polarized antenna technology, applied in the field of communication, can solve the problems of low port isolation, increase cross-polarization level, mutual influence between vertical polarization unit and horizontal polarization unit, and achieve high port isolation , low cross-polarization levels, and low profile characteristics

Active Publication Date: 2019-02-01
SHENZHEN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the compact structure will easily cause the vertical polarization unit and the horizontal polarization unit to interact with each other, thereby increasing the cross polarization level and resulting in low port isolation

Method used

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  • Omnidirectional double-wideband dual polarized antenna applied to indoor distribution system
  • Omnidirectional double-wideband dual polarized antenna applied to indoor distribution system
  • Omnidirectional double-wideband dual polarized antenna applied to indoor distribution system

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Embodiment

[0037] figure 1 It shows a schematic diagram of the three-dimensional structure of the omnidirectional dual-broadband dual-polarized antenna of the present invention, omitting the supporting structure and the combiner.

[0038] Including a first horizontal polarization unit 1, a second horizontal polarization unit 2, a vertical polarization unit 3, a combiner 4, and a feed structure; the first horizontal polarization unit 1 and the second horizontal polarization unit 2 are connected to vertical poles The polarization unit 3, the first horizontal polarization unit 1 at the top of the vertical polarization unit 3 is connected by a coaxial wire, which is responsible for transmitting and receiving antenna high-frequency signals, and the coaxial wire of the first horizontal polarization unit 1 passes through the second horizontal polarization unit 2. The circular ring in the center is connected downward to the high frequency port of the combiner 4, and the vertical polarization uni...

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Abstract

The invention provides an omnidirectional double-wideband dual polarized antenna applied to an indoor distribution system. The antenna comprises two horizontal polarization units, a vertical polarization unit, a combiner and a feed structure; the horizontal polarization units are connected with the vertical polarization unit, the first horizontal polarization unit in the top end of the vertical polarization unit is connected via a coaxial lead, the coaxial lead of the first horizontal polarization unit penetrates a circular ring in the center of the second horizontal polarization unit and is downwardly connected to a high-frequency port of the combiner, and the vertical polarization unit is connected to a vertical polarization port via a coaxial lead; the second horizontal polarization unit in the middle of the vertical polarization unit is connected via a coaxial lead, and the coaxial lead of the second horizontal polarization unit is downwardly connected to a low-frequency port of the combiner; and the two horizontal polarization units are connected to a horizontal polarization port via the combiner. The antenna can cover the frequency range of 0.81-0.96 GHz and the frequency range of 1.71-2.69GHz at the same time and can be applied to 2G / 3G / LTE; and the antenna is characterized by low crossed polarization level, high port isolation degree, low out of roundness degree, high gain and low profile.

Description

[technical field] [0001] The invention belongs to the technical field of communication, and in particular relates to an omnidirectional dual-broadband dual-polarization antenna suitable for an indoor wireless broadband communication distribution system. [Background technique] [0002] With the rapid development of mobile communication technology, wireless communication systems have higher and higher requirements for antenna performance. Now in China, frequency bands from 0.81 to 0.96GHz and 1.71 to 2.69GHz have been allocated to 2G / 3G / LTE communication systems. Resource utilization, a broadband antenna that can satisfy multiple systems at the same time has become a necessary condition. At the same time, due to the ability to double the channel capacity and improve the utilization of the working frequency band, dual-polarized antennas have become the basic configuration of modern communication systems. Omni-directional antennas are the basic components of indoor distribution...

Claims

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Application Information

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IPC IPC(8): H01Q5/20H01Q5/307H01Q5/50H01Q1/36H01Q1/38H01Q1/50
CPCH01Q1/36H01Q1/38H01Q1/50H01Q5/20H01Q5/307H01Q5/50
Inventor 冯波涛赖杰鑫胡皓
Owner SHENZHEN UNIV
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