A micro-nano thin film magnetosonic antenna

Abstract

The invention provides a micro-nano thin film magnetosonic antenna comprising a pedestal. The middle portion of the upper surface of the pedestal is provided with a cavity; the bottom and the side wall of the cavity and the upper surface of the pedestal are provided with insulation layers connected to a whole; a supporting layer is arranged on the insulation layer on the upper surface of the pedestal; the middle portion of the supporting layer is arranged over the cavity in a suspended manner; a magnetism-sound-electricity coupled structure consisting of magnetostrictive thin films and a thinfilm bulk acoustic wave resonator is arranged on the supporting layer; the magnetism-sound-electricity coupled structure is located right above the cavity; each magnetostrictive thin film consists ofmultiple magnetostrictive thin film layers and multiple buffer layers, wherein the number of the magnetostrictive thin film layers and the number of the buffer layers are the same and the magnetostrictive thin film layers and the buffer layers are arranged in an alternate manner. While being miniaturized, the antenna has better performance than conventional electric antennas.

Description

technical field [0001] The invention relates to an optimization scheme for antenna miniaturization, in particular to the multi-phase heterogeneous structure design of the antenna, which is used to enhance the magnetoelectric coupling effect of the antenna and improve the gain and efficiency of the antenna. Background technique [0002] A traditional antenna is an essential component in any radio transceiver system, its function is to radiate and receive radio electromagnetic waves from free space. In the transmission system, the function of the antenna is to convert high-frequency current into electromagnetic waves propagating in free space; while in the transmission system, the function of the antenna is to convert the received electromagnetic waves from free space into high-frequency current. It generally adopts a metal wire structure. The metal antenna realizes the coupling between the radio frequency electrical signal and the radiated electromagnetic field at the resona...

AI Technical Summary

Problems solved by technology

[0003] In recent years, with the rapid development of miniaturization of communication electronic equipment, most electronic components have been miniaturized, while traditional antennas are limited by the working principle of the existing technology (only when they reach a corresponding size can they radiate a large amount of electromagnetic waves outward), although The size can be made smaller, but at the expense of bandwidth, gain and efficiency, it is difficult to make breakthroughs in technologies commonly used for antenna miniaturization

Especially in the P~S band and other frequencies with large wavelengths (0.1m~10m), it is very challenging to realize the miniaturization and array of antennas, which has severely limited the miniaturization of wireless communication systems and radar equipment. process

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