A wideband dual-polarization antenna array device and high-resolution direction finding method

A dual-polarized antenna and dual-polarized technology is applied in the field of electromagnetic fields and microwaves to achieve comprehensive parameter measurement functions and platform adaptability, improve reliability, and increase redundancy.
CN106848546BActive Publication Date: 2020-08-07HARBIN INST OF TECH AT WEIHAI
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH AT WEIHAI
Publication Date
2020-08-07

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Abstract

The invention belongs to the technical field of electromagnetic fields and microwaves, in particular to a broadband dual-polarized antenna array device and a high-resolution direction finding method that can be used in radio communication systems such as radars, and is characterized in that a six-unit ultra-wideband cavity-back type is provided. Dual-polarized log-periodic antenna array to form a multi-baseline direction finding system of a twelve-port network, in which each element is a dual-polarized structure, providing two polarization ports, and each antenna element forms a pole in the main radiation direction Orthogonal electromagnetic field, the ultra-wideband cavity-backed dual-polarization logarithmic periodic antenna array consists of a metal mounting chassis, a broadband microwave absorbing material, and three ultra-wideband cavity-backed dual-polarized logarithmic periodic antenna units. The shape is nearly conical, and the present invention can simultaneously realize the high-resolution estimation of the two-dimensional direction of arrival of the radiation source signal and the joint measurement of the polarization parameters.
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Description

Technical field:

[0001] The invention belongs to the field of electromagnetic field and microwave technology, and specifically relates to a broadband dual-polarization antenna array device and a high-resolution direction finding method that can be used in radio communication systems such as radar. Background technique:

[0002] In electronic systems such as radio navigation, electronic reconnaissance, electronic tracking and electronic countermeasures, a very important task is to determine the position of the target. Direction of arrival (DOA, Direction of Arrival) estimation, as an important research direction in the field of array signal processing, is widely used in many fields such as radar, communication, sonar, seismic, exploration, radio astronomy, and biomedical engineering. In the military, in the modern electronic warfare environment, signal sources are dense, complex, and changeable. There are often multiple radars (radiation sources) in the actual direction-findi...

Claims

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