1results about How to "Reduce energy transfer" patented technology

The application provides a substrate and a surface acoustic wave multiplexer, the substrate comprising at least one electromagnetic regulation structure; the electromagnetic regulation structure is configured to reduce the transmission energy of signals in the target frequency band on a parasitic coupling path when a surface acoustic wave multiplexer chip carried on the substrate is working; wherein the parasitic coupling path is formed between at least one transmitting port and at least one receiving port of the surface acoustic wave multiplexer chip. Based on the substrate provided by the embodiments of the application, the passband performance guarantee and the isolation suppression function of the surface acoustic wave multiplexer can be decoupled, allowing the signal leakage path of the target frequency band to be suppressed through the electromagnetic regulation structure of the substrate without changing the design of the surface acoustic wave multiplexer chip itself, thereby realizing flexible and effective improvement of the isolation of the surface acoustic wave multiplexer without affecting the core passband indicators of the surface acoustic wave multiplexer.