Reconfigurable multiplexer and communication equipment

Abstract

The invention relates to the field of multiplexers, in particular to a reconfigurable multiplexer and communication equipment, and the multiplexer comprises a first electric bridge, a second electricbridge, a third electric bridge, a first phase shift element, a second phase shift element, a first duplexer, a second duplexer, a third duplexer and a fourth duplexer, the input end of the first bridge is connected with the antenna; the isolation end is connected with a grounding resistor, and the 0-degree output end is connected with a first duplexer and a third duplexer which are connected in parallel, wherein the-90-degree output end is connected with a second duplexer and a fourth duplexer which are connected in parallel, and switches are arranged between the first duplexer and the 0-degree output end of the first electric bridge and between the third duplexer and the 0-degree output end of the first electric bridge and between the second duplexer and the-90-degree output end of the first electric bridge and between the fourth duplexer and the-90-degree output end of the first electric bridge respectively. According to the multiplexer provided by the invention, the conversion of two high-isolation and high-power duplexers and one high-isolation and high-power quadplexer can be realized through switch selection, so that the multiplexer reconstruction is realized, and the carrier aggregation requirement is met.

Description

technical field [0001] The invention relates to the technical field of multiplexers, in particular to a reconfigurable multiplexer and communication equipment. Background technique [0002] The small base station system is an important part of 5G communication, which requires a higher transmission frequency; the filters and multiplexers in the small base station system in the future will move towards small phones, high power capacity, high isolation, and low cost. Develop in a more directional way. [0003] At present, cavity filters and multiplexers are mainly used in base station systems. Filters and multiplexers with cavity structures have small insertion loss, good out-of-band suppression, and high isolation, but their significant disadvantages are size Larger, high processing costs, it is difficult to be widely used in future 5G communications, and bulk acoustic wave filters and multiplexers are characterized by good insertion loss, high out-of-band rejection, and low ...

AI Technical Summary

Problems solved by technology

Although this topology is simple in structure, its disadvantages are also obvious, that is, the performance of the quadplexer is completely determined by the performance of the duplexer. If the isolation of the duplexer is poor, the isolation of the quadplexer is also poor. Similarly, If the power capacity of the duplexer is low, the power capacity of the quadplexer will also be low, and this type of quadplexer is difficult to meet the application of 5G in the future

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