A multi-antenna array supporting multi-standard

Abstract

A multi-mode-supported multi-antenna array is provided in the present invention, comprising more than two radiating units with the same form, a reflecting plate, a feed network and a set of input / output ports. The radiating units and the feed network are respectively positioned on the two different sides of the reflecting plate. The radiating units implement electrical connection with each other via the feed network. The input / output ports of the antenna connect with the feed network, and radio frequency signals are received or transmitted by the set of input / output ports. With the present invention, high-frequency signal input / output ports and low-frequency signal input / output ports can be independently controlled, so that ±45 degree bipolar signal coverage can be respectively performed. The array is simple in structure and low in cost.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a multi-system multi-antenna array, and the invention can be widely used in the field of mobile communication base station antennas. Background technique [0002] The development of the mobile communication industry has gone through the process from 2G to 3G, and from 3G to 4G. The needs of users have gradually shifted from voice calls to data services, and from data services to high-speed data services. In this process, 2G, 3G and 4G will coexist for a long time. For mobile communication base station antennas, the existence of a multi-standard system requires the antenna to support multi-band work. At present, there are two main design methods for base station antennas that support multi-band operation: [0003] (1) Design a broadband or ultra-wideband radiating unit and a feed network to support multi-band work at the same time; [0004] (2) Design a variet...

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Problems solved by technology

[0005] For the method (1), the problem is that when using a base station antenna that supports multiple frequency bands in engineering, the common practice is to add a combiner at the signal input or output port of the base station antenna to realize the signal separation of different systems

However, this method is prone to severe signal cross-frequency interference and high installation error rate. The main limitation is that it cannot independently control signals that support different standards.

[0006] For (2), the problem is that when designing a base station antenna that supports multiple frequency bands, due to the existence of multiple radiating units and multiple sets of feeding networks, in order to avoid mutual interference between radiating units of different frequency bands, it is necessary to It is necessary to independently design the radiating unit and feed network working in different frequency bands

The main problem is that, for base station antennas, adding a set of radiation units will increase the cost of designing, processing, and installing the radiation units. Correspondingly, the design, processing, and installation of the radiation units will also increase the corresponding feed network cost

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