Magnetically and electrically-adjustable microstrip antenna and adjusting method thereof

Abstract

The invention discloses a magnetically and electrically-adjustable microstrip antenna and an adjusting method thereof. The microstrip antenna comprises a magnetic-electric laminated material substrate, electromagnets, a microstrip feeder, a ferromagnetic phase and a piezoelectric phase, wherein the magnetic-electric laminated material substrate comprises the ferromagnetic phase and the piezoelectric phase from top to bottom, the ferromagnetic phase and the piezoelectric phase are adhered through epoxy resin, a layer of metal film is respectively plated on the front side surface of the piezoelectric phase and the rear side surface of the piezoelectric phase, the lower surface of the piezoelectric phase is grounded, a metal microstrip patch is produced on the upper surface of the ferromagnetic phase through a photoetching corrosion method, the metal microstrip patch serves as a microstrip radiating unit and is connected through the microstrip feeder, and a pair of electromagnets are placed at the left end of the magnetic-electric laminated material substrate and the right end of the magnetic-electric laminated material substrate. According to the antenna and the adjusting method, defects that working frequency ranges of traditional microwave devices are not adjustable or adjustable working frequency ranges are simplex and can not bee adjusted accurately are eliminated, and the antenna and the adjusting method are applicable to adjustable application in wireless communication. Simultaneously, due to the magnetically and electrically adjustable characteristic, defects that traditional magnetically adjustable microwave devices are high in loss, long in response time and the like during working are eliminated.

Description

technical field [0001] The invention relates to a miniaturized adjustable microwave device, in particular to a magnetic-electric double adjustable microstrip patch antenna and an adjusting method thereof. Background technique [0002] As the entrance and exit of wireless communication, the antenna affects the performance of the wireless communication system to a large extent. At the same time, in most cases, the size of the antenna is also an important determinant of the size of the wireless communication terminal. Microstrip antennas have the advantages of low profile, miniaturization, simple fabrication, easy integration, good directivity, etc., and are widely used in communication navigation, radar, electronic countermeasures and other fields. In recent years, with the rapid development and progress of the wireless communication industry, the industry has higher requirements for the miniaturization and multi-function of the antenna. [0003] The traditional dielectric m...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the coil used to apply the bias magnetic field, this magnetically tunable microstrip antenna has disadvantages such as large device loss, long response time, huge noise during operation, and large errors.

All in all, the existing microstrip antennas generally have the disadvantages of non-adjustable working frequency band or single adjustable working frequency band, large loss, and inability to achieve precise adjustment in a small range.

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