Parasitic triangular multi-arm antenna with slot coupling across arms

Abstract

A parasitic triangular multi-arm antenna with strip arm spanning gap coupling relates to a microstrip antenna. The antenna comprises a substrate of which the upper surface is provided with a triangular paster; the triangular paster is a parasitic triangular strip arm spanning gap coupling radial paster; the triangular paster is provided with spiral gap arrays; three outer triangular gap arrays in three-arm symmetrical distribution and parallel with the three edges of the triangular paster are loaded at the edges of the three edges of the triangular paster; the wide edge at one end of each gap is aligned with the triangular long side; the wide edge at the other end of each gap is attached to the other triangular edge; in the vortex triangular ring defined by the three outer gaps, three inner triangular gap arrays in three-arm symmetrical distribution are loaded by being parallel with the three outer gaps in a self-similarity mode; a triangular good conductor layer is laid on the lower surface of the substrate as a grounding plate. A circular hole is formed in the center of the triangular good conductor layer for feeding coaxially. The antenna is simple in manufacturing, small in size, wide in band width, good in radiation property and easy to integrate, is less influenced by environment factors and has multifrequency characteristic.

Description

technical field [0001] The invention relates to a microstrip antenna, in particular to a meandering slot array loaded on a basic triangular microstrip patch, combined with spiral folding and fractal recursive technology, through comprehensive optimization of the dielectric constant, the vortex triangular arm The parameters of length and recursive coupling amount can cover the basic frequency range of Beidou, and can also be extended to the parasitic triangular multi-arm antenna with cross-arm slot coupling compatible with GPS and multi-frequency application systems. Background technique [0002] China Beidou Satellite Navigation System (COMPASS, Chinese transliteration name BeiDou), as a global satellite navigation system independently developed and operated by China, is an important spatial information infrastructure that the country is implementing and building, and can be widely used in various fields of economy and society. [0003] The Beidou satellite navigation system...

AI Technical Summary

Problems solved by technology

However, at present, there is no microstrip antenna that is very suitable for the terminal equipment of my country's Beidou second-generation satellite navigation and positioning system at home and abroad. There are mainly shortcomings such as excessive size, low antenna efficiency, low gain at low elevation angles, and insufficient bandwidth in low-frequency bands.

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