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Design method and device of a space sampling antenna based on interference cancellation

A technology of spatial sampling and design method, which is applied in the direction of manufacturing antenna array devices, CAD based on constraints, antennas, etc., can solve the problems of difficulty in designing sampling antennas, comprehensive consideration of design and performance characteristics optimization of sampling antennas that cannot be sampled, etc. The results of the graph are accurate and comprehensive, with completeness and universality, and the effect of improving the analysis efficiency

Active Publication Date: 2022-04-08
NAVAL UNIV OF ENG PLA
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Problems solved by technology

[0004] Aiming at the defects of the prior art, the object of the present invention is to provide a design method and device for a spatial sampling antenna based on interference cancellation, aiming at solving the problem that the prior art cannot comprehensively consider the design and performance optimization of the sampling antenna, resulting in design It is very difficult to find the optimal performance sampling antenna that meets the actual needs

Method used

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  • Design method and device of a space sampling antenna based on interference cancellation
  • Design method and device of a space sampling antenna based on interference cancellation
  • Design method and device of a space sampling antenna based on interference cancellation

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Embodiment

[0161] When the main antenna and the sampling antenna are two flat and symmetrical first oscillators and second oscillators, the current distributions are:

[0162] I 1 ( z 1 )= I m1 sin[ β ( l -| z 1 |)], I 2 ( z 2 )= I m2 sin[ β ( l -| z 2 |)]

[0163] in, I m1 and I m2 are the current amplitudes of the first vibrator and the second vibrator, respectively; z 1 and z 2 Respectively represent the positions on the first vibrator and the second vibrator; the small unit of the second vibrator to the first vibrator dz 1 The total induced electric field generated E θ12 ( z 1 ):

[0164] E θ12 ( z 1 )= j 60 I m2 / [ r 1 · sin( d / r )] {cos[ βl cos( d / r )]-cos( βl )} e -jβr1

[0165] in, d is the distance between the first vibrator and the second vibrator; r 1 =sqrt( d 2 + z 1 2 );

[0166] E θ12 ( z 1 ) component in the length direction of the first vibrator E z12 ( z 1 )for:

[0167] E z12 ( z 1 )= -E θ1...

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Abstract

The invention provides a design method and device for a space sampling antenna based on interference cancellation, which belongs to the technical field of anti-interference sampling antenna. The mutual impedance between the antenna and the sampling antenna is used to obtain the coupling degree between the main antenna and the sampling antenna; at the same time, the format pattern is analyzed, and the interference suppression ratio is calculated by the spatial sampling method; combined with the constraints of the array antenna design, the optimal number of sampling antennas is screened out; The method for obtaining the analytical solution of the surface current distribution of the sampling antenna is as follows: using the initial current distribution on the sampling antenna, and correcting the dynamic field distribution generated by the current component; Then, the analytical solution of the current distribution on the surface of the sampling antenna is obtained. The invention can be used in the optimized design of various line antennas anti-jamming sampling antennas.

Description

technical field [0001] The invention belongs to the technical field of anti-jamming sampling antennas, and more particularly relates to a design method and device of a space sampling antenna based on interference cancellation. Background technique [0002] The sampling antenna refers to a miniaturized antenna unit or array installed around the main antenna, which samples the interference source in space and is used for adaptive adjustment and synthetic cancellation of the interference cancellation device. [0003] In the prior art, the design of the sampling antenna unit and the analysis of the interference cancellation algorithm are usually separated. For example, for radar anti-interference, the sampling antenna in the interference cancellation algorithm is usually optimized by using the ideal omnidirectional antenna simulation diagram data array. Obviously, this method is not enough to guide the actual sampling antenna structure design, and it is only given from the persp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20H01Q21/00G06F111/04
CPCH01Q21/0087G06F30/20G06F30/17G06F2111/04
Inventor 罗康何方敏刘宏波李亚星杨凯王青李斌谢明亮李哲宇
Owner NAVAL UNIV OF ENG PLA
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