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Multi-frequency transmission base station antenna and communication system

A technology for base station antennas and high-frequency antennas, applied in antennas, antenna components, antenna supports/installation devices, etc., can solve problems such as cross-band scattering, and achieve the effect of improving impedance matching

Active Publication Date: 2021-10-01
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-frequency transmission base station antenna and communication system in order to overcome the defects of the above-mentioned prior art, which can solve the cross-band scattering problem faced when integrating multiple base station antennas of different frequency bands in a limited space

Method used

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  • Multi-frequency transmission base station antenna and communication system
  • Multi-frequency transmission base station antenna and communication system
  • Multi-frequency transmission base station antenna and communication system

Examples

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Embodiment 1

[0038] refer to figure 1 As shown, this embodiment provides a multi-frequency transmission base station antenna, including a low-frequency antenna unit 1 and four high-frequency antenna units 2-1 to 2-4, four high-frequency antenna units 2-1 to 2-4, Four high-frequency antenna units 2-1 to 2-4 are nested and arranged in the low-frequency antenna unit 1, effectively reducing the volume. Wherein, the frequency of the high-frequency antenna unit is higher than that of the low-frequency antenna unit, and the four high-frequency antenna units may be antenna units of different frequencies. In this embodiment, the frequency of the low-frequency antenna unit is 690 MHz-960 MHz, and the frequency of the high-frequency antenna unit is 3.3 GHz-3.6 GHz.

[0039] refer to Figure 1-Figure 3 As shown, the low-frequency antenna unit includes a radiator 1-1, a first dielectric substrate 4-3, a second dielectric substrate, a metal reflector 3, a feed structure 1-2, and a feed network 5. In t...

Embodiment 2

[0050] This embodiment provides a multi-mode communication system, including the multi-frequency transmission base station antenna described in Embodiment 1.

[0051] It should be noted that what is provided in this embodiment is only one of many embodiments of multi-frequency transmission base station antennas. The multi-frequency transmission base station antenna can also be composed of an intermediate-frequency antenna unit that can transmit electromagnetic waves radiated by the high-frequency antenna units 2-1-2-4 in the four high-frequency antenna units 2-1-2-4. For a more integrated multi-frequency transmission base station antenna, the radiator of the mid-frequency antenna unit and the radiator of the low-frequency antenna unit can be printed on the same dielectric substrate 4-3. In addition, the radiation patch of the low-frequency unit adopts a circular radiation patch, but is not limited to a specific shape, such as a square ring, a circular ring, an octagonal ring a...

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Abstract

The invention relates to a multi-frequency transmission base station antenna which comprises a low-frequency antenna unit and a plurality of high-frequency antenna units. The plurality of high-frequency antenna units are nested and distributed in the low-frequency antenna unit, and the low-frequency antenna unit comprises a radiator with a periodic resonance gap. Compared with the prior art, the antenna is small in size, capable of achieving multi-band co-location coexistence and the like.

Description

technical field [0001] The invention belongs to the technical field of mobile communication base station antennas, in particular to a multi-frequency transmission base station antenna and a communication system. Background technique [0002] Wireless communication is a communication method in which information is exchanged in space with electromagnetic waves as the carrier. From the first-generation analog cellular network mobile communication system (1G) that appeared in the 1970s, to the second-generation mobile communication system (2G) using digital technology, to 3G using digital cellular mobile communication technology and the use of LTE The advanced 4G mobile communication system finally ushered in the 5G era after decades of development. The fifth generation of mobile communication (5G) was officially commercialized at the end of 2019, and 4G and 5G mobile converged communication is becoming a mainstream commercial communication tool. [0003] The leap-forward deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q1/36H01Q1/38H01Q5/28
CPCH01Q1/246H01Q5/28H01Q1/38H01Q1/36
Inventor 孙诗雨彭宏利
Owner SHANGHAI JIAO TONG UNIV
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