Multi-frequency double-layer dielectric plate feed source patch and radiation slot complementary microstrip antenna

Abstract

The invention discloses a multi-frequency double-layer dielectric plate feed source patch and radiation slot complementary microstrip antenna. The antenna comprises an upper dielectric substrate and alower dielectric substrate, a first rectangular metal patch is printed on the upper surface of the upper dielectric substrate, a cross-shaped gap is processed on the first rectangular metal patch, and a cross-shaped metal patch is printed on the upper surface of the lower dielectric substrate; the cross-shaped metal patch and the cross-shaped gap have the same geometric dimensions and correspondto each other up and down, a second rectangular metal patch is printed on the lower surface of the lower dielectric substrate to serve as a grounding plate, a circular non-metal area is machined on the second rectangular metal patch, the center of a non-metallized via hole coincides with the center of the circular non-metal area, and the radius of the non-metallized via hole is smaller than that of the circular non-metal area. By adopting the structure that an excitation patch and a radiation slot are complementary, the resonant frequency points of the antenna are increased, the structure of the antenna is simplified, and the profile of the antenna is reduced.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a multi-frequency double-layer dielectric board feed source patch and a radiation slot complementary microstrip antenna. Background technique [0002] With the development of science and technology and social progress, the radio communication system is also constantly developing. As an important member of the wireless communication system, the antenna needs to realize the radiation and reception of wireless electromagnetic waves, that is, to convert the energy in the form of current conduction in the transmission line into the energy in the form of space electromagnetic radiation. [0003] The miniaturization of equipment has been the development direction of wireless mobile communication equipment for many years. The reduction of the volume of the equipment requires the volume of each device in the equipment to be reduced, and in most wireless communication equ...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a multi-frequency double-layer dielectric plate feed source patch and radiation slot complementary microstrip antenna for the above-mentioned existing multi-frequency antenna technology with complex antenna structure and fewer antenna resonant operating frequency points. The complementary structure of the excitation patch and the radiation slot increases the resonant frequency of the antenna, simplifies the structure of the antenna, and reduces the profile of the antenna

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