Stacked microstrip antenna based on nested recursive rotationally symmetric csrr distribution array

Abstract

The invention relates to a microstirp antenna, in particular to a stacked microstirp antenna based on a nested recursion rotational symmetry CSRR distribution array. The stacked microstirp antenna is of a five-layer structure formed by stacking good conductors and dielectric substrates without gaps and sequentially comprises the upper good conductor layer, the upper substrate, the middle good conductor layer, the lower substrate and the lower good conductor layer from top to bottom. The upper good conductor layer is a one-order Minkowski fractal upper radiation patch with a nested recursion rotational symmetry CSRR distribution array structure and a chamfer structure, the nested recursion rotational symmetry CSRR distribution array structure is provided with eight array elements geometrically centrosymmetric with the antenna, the array elements are of a complementary opening resonance ring structure, the distribution array structure is formed by a two-order array in a nested recursion mode and composed of a first-order four-element array near the center of the patch and a second-order four-element array scattered at four corners of the patch, the included angle between four array elements of the first-order four-element array or four array elements of the second-order four-element array and the edge of the antenna is 45 degrees, and the four array elements of the first-order four-element array and the four elements of the second-order four-element array are both arranged in a 90-degree rotational symmetry mode; the center of each complementary opening resonance ring is located in the diagonal of the patch; the middle good conductor layer is a one-order Minkowski fractal lower radiation patch with small holes and chamfers.

Description

technical field [0001] The present invention relates to a microstrip antenna, in particular to a nested recursive rotationally symmetric CSRR distribution array on a fractal patch, combined with a cut-angle degeneracy model structure and a laminated structure, through comprehensive optimization of the distribution position of the CSRR array , the cutting angle size and slot parameters, can cover the basic frequency band of the Beidou navigation system, and can also be extended to the stacked microstrip antenna based on the nested recursive rotationally symmetric CSRR distribution array compatible with GPS and multi-frequency application systems. Background technique [0002] The Beidou satellite navigation system is a global satellite navigation system with independent research and development and independent operation currently being implemented in my country. Compared with the US GPS, Russia's GLONASS, and the EU's Galileo system, it can provide high-precision, high-reliabi...

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Problems solved by technology

[0005] Although in recent years, there have been many researches in the field of Beidou navigation antennas with small broadband characteristics, they mainly focus on single-frequency or dual-frequency, especially for triple-frequency and above, compatible with the research of stacked microstrip antennas for GPS navigation system applications Relatively small

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