Circulator

Abstract

The invention, which relates to the technical field of communication, discloses a circulator comprising a grounding layer, a microstrip circuit layer, a first ferrite, a second ferrite, and a permanent magnet. The microstrip circuit layer includes a first substrate and microstrip circuits arranged at two opposite surfaces of the first substrate symmetrically; and the two microstrip circuits are communicated by a first metalized through hole. The first ferrite and the second ferrite arranged coaxially are connected with the grounding layer; and the two ferrites and the two microstrip circuits correspond to each other one by one. The permanent magnet, the first ferrite and the second ferrite are arranged coaxially; and the permanent magnet is arranged above the second ferrite. According to the embodiment, the microstrip circuits are realized by the metal plating layer etched on the substrate instead of being sputtered on the ferrites directly. Therefore, the process difficulty is reduced and the consistency of batch processing is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a circulator. Background technique [0002] As the frequency of 5G communication equipment increases, the power decreases, and the number of channels increases in the future, traditional microstrip ferrite circulators in the prior art, such as figure 1 As shown, the microstrip circuit 3 is sputtered on the ferrite 2, the ferrite 2 is welded to the metal substrate 4, and the permanent magnet 1 is glued on the top of the microstrip circuit 3 to realize it. The overall structure after the combination is shown in figure 2 . However, the circulators in the prior art sputter the microstrip circuit on the ferrite because the lines of the high-frequency microstrip circuit are thin, the structure of the ferrite material is loose, and the processing technology requirements are high, resulting in poor consistency in batch processing. Contents of the invention [0003] The...

AI Technical Summary

Problems solved by technology

However, the circulator in the prior art sputters the microstrip circuit on the ferrite because the lines of the high-frequency microstrip circuit are thin, the structure of the ferrite material is loose, and the processing technology requirements are high, resulting in poor batch processing consistency.

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