Circularly polarized microstrip antenna with director oscillator

Abstract

The invention relates to the technical field of microstrip patch antennas. Particularly, the invention relates to a circularly polarized microstrip antenna with a director oscillator. The antenna comprises a microwave dielectric substrate, a metal patch assembly is fixed on the top surface of the microwave dielectric substrate; the metal patch assembly comprises a corner-cut inner metal patch anda peripheral metal patch, one side of the corner-cut inner metal patch is connected with an allocation branch and a feed probe, a metal cylinder is arranged in a through hole in the middle of the corner-cut inner metal patch, and the top end of the metal cylinder is connected with a plurality of height adjusting columns. The circularly polarized microstrip antenna with the director oscillator canplay a role in directing electric wave signals, and the centrality and stability of the antenna for receiving the electric wave signals are improved; meanwhile, the radiation characteristics of the microstrip antenna can be allocated in a small range after a PCB is processed, so that the antenna meets the requirements of specific indexes, and the debugging performance of an antenna product is improved; in addition, during mass production, the rejection rate of products can be reduced through a blending measure, so that the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of microstrip patch antennas, in particular to a circularly polarized microstrip antenna with a guiding vibrator. Background technique [0002] Microstrip patch antenna has been widely researched and applied because of its low profile, light weight, small size, low cost, easy integration and array formation. For circularly polarized microstrip antennas, the current common technical solution is to use the form of a cut-angle antenna, that is, to cut off two corners on the diagonal of a rectangular patch to achieve circular polarization, which is often used as a GPS receiver. antenna. Although the structure of this solution is simple, the beam of the antenna is wide, resulting in low gain, and sometimes it is difficult to meet the specification requirements; on the other hand, most microstrip antennas are processed on the PCB board, and once the board is manufactured, the antenna specification cannot be adjus...

AI Technical Summary

Problems solved by technology

Although the structure of this solution is simple, the beam of the antenna is wide, resulting in low gain, and sometimes it is difficult to meet the specification requirements; on the other hand, most microstrip antennas are processed on the PCB board, and once the board is manufactured, the antenna specification cannot be adjusted. However, processing errors will lead to changes in antenna performance, and even lead to situations that do not meet the requirements of the indicators.

In this case, the microstrip antenna does not have any adjustable compensation measures, resulting in an increase in the reject rate of antenna products

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