Rapid estimation method for directional diagram of radian-deformed conformal microstrip patch antenna

Abstract

The invention relates to a conformal antenna technology, in particular to a rapid estimation method for the directional diagram of a radian-deformed conformal microstrip patch antenna, which sequentially comprises the steps of modeling a microstrip patch antenna on a dielectric plate, simulating a microstrip patch antenna model, obtaining a radiation electric parameter value, determining an H-surface directional diagram function of the curved surface microstrip patch antenna through curve fitting, and obtaining an H-surface directional diagram and a directional diagram function of a conformal antenna formed by a curved surface microstrip patch array. The invention provides an effective antenna direction rapid estimation method for the patch microstrip antenna influenced by deformation. The method comprises the following steps: simulating antennas with different degrees of deformation to obtain antenna radiation pattern data, and performing curve fitting to obtain an antenna H-surface pattern function formula, so that a deformed conformal microstrip patch antenna array far-field H-surface pattern can be quickly calculated through the formula. When the directional diagram of the deformed microstrip antenna is calculated, the formula provided by the invention can be applied mechanically to achieve rapid calculation.

Description

technical field [0001] The invention relates to conformal antenna technology, in particular to fast estimation of microstrip patch antenna pattern. Background technique [0002] The conformal antenna is an antenna structure consistent with the structure of the carrier platform, which not only has the structure bearing function, but also has the ability to transmit and receive electromagnetic signals. As the skin structure of aircraft such as airships and wings, conformal antennas will directly bear the effects of environmental loads such as vibration and impact, which will inevitably cause structural deformation, and the performance of conformal antennas embedded in them will also change, which in turn will affect the performance of the aircraft. The performance of detection distance, anti-interference and imaging clarity in dynamic service environment. [0003] Many studies have been carried out on the influence of structural factors on the electrical performance of array ...

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Problems solved by technology

However, the above studies all focus on the analysis of the influence of array deformation on the electrical performance of the antenna, and there are few studies on the influence of array element deformation on the electrical performance of the antenna.

However, the deformation of the array element has a non-negligible impact on the array element pattern and gain, as well as the overall antenna pattern and gain, but the influence relationship is more complicated, and it is not easy to obtain

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