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Compact multi-beam antenna array with high and low frequencies of filtering oscillators in interlacing arrangement

A multi-beam antenna, high and low frequency filtering technology, applied in the direction of antenna array, specific array feeding system, independent antenna unit combination, etc., can solve the problem of excessive size, no filtering characteristics, strong mutual coupling and isolation of interweaving arrays Poor performance and other issues, to achieve the effect of reducing mutual coupling, reducing size, and good isolation performance

Pending Publication Date: 2017-02-15
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0005] In order to overcome the problem that the high and low frequency elements of the multi-frequency base station are separated and arranged in an oversized array in the prior art and the defects of strong mutual coupling and poor isolation performance of the interleaved array without filtering characteristics, the present invention provides a high and low frequency filter oscillator Interleaved Compact Multibeam Antenna Array

Method used

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  • Compact multi-beam antenna array with high and low frequencies of filtering oscillators in interlacing arrangement
  • Compact multi-beam antenna array with high and low frequencies of filtering oscillators in interlacing arrangement
  • Compact multi-beam antenna array with high and low frequencies of filtering oscillators in interlacing arrangement

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Embodiment

[0051] A compact multi-beam antenna array with high and low frequency filter oscillators interleaved, including a first sub-array working in the first frequency band and a second sub-array working in the second frequency band arranged on the substrate, the first sub-array and the second sub-array are interleaved, wherein the array elements of one sub-array are distributed in the space between the array elements of another sub-array, and the first sub-array is composed of at least one first filter antenna unit without an external loss circuit, The second sub-array is composed of at least one second filter antenna unit without external loss circuit, the number of elements of the two sub-arrays can be the same or different, and the first frequency band and the second frequency band are completely different.

[0052] By using the filter antenna unit with no external loss circuit as the element of the multi-frequency base station antenna array, the array is interleaved, which can re...

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Abstract

The invention discloses a compact multi-beam antenna array with high and low frequencies of filtering oscillators in interlacing arrangement. The antenna array comprises first and second subarrays arranged on a substrate, the first and second subarrays work in first and second frequency ranges respectively and are arranged in an interlacing manner, array elements of one subarray are distributed in spaces among array elements of the other subarray dispersely, the first subarray is formed by a first filtering antenna unit of at least one applied-loss-free circuit, and the second subarray is formed by a second filtering antenna unit of at least one applied-loss-free circuit. The whole array is formed by interlacing arrangement of oscillators in two frequency ranges, and compared with a design in which the high-frequency oscillators and low-frequency oscillators are arranged separately, the size can be reduced; and compared with design of interlacing oscillator array without a filtering characteristic, mutual coupling between the oscillators is lower, and a high isolation performance can be maintained.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a compact multi-beam antenna array in which high and low frequency filter oscillators are interleaved. Background technique [0002] With the explosive increase of the amount of data information, more and more requirements are placed on the capacity of the communication system, especially in places with a particularly large flow of people, such as squares, stations, scenic spots, dormitories and other places. On the one hand, channel capacity can be increased through in-band bandwidth or carrier bandwidth. Since the bandwidth of a single antenna is usually relatively narrow, a multi-passband base station antenna array is usually used to simultaneously support multiple wireless system standards. On the other hand, the channel capacity can also be increased by reducing the coverage area of ​​the base station antenna, that is, increasing the number of antennas. However, these m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q21/00H01Q21/30
CPCH01Q1/38H01Q1/50H01Q1/521H01Q21/0006H01Q21/30
Inventor 章秀银薛狄吴裕锋张垚
Owner SOUTH CHINA UNIV OF TECH
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