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Wide beam gain enhancement method with controllable array excitation dynamic range

A dynamic range and wide beam technology, applied in the field of antennas, can solve problems such as difficult to ensure wide beam gain of the array, and achieve the effect of high and wide beam gain

Active Publication Date: 2022-07-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Application Information

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Problems solved by technology

[0003] In order to realize the wide beamforming with controllable dynamic range of array excitation, the existing method mainly optimizes the array pattern to obtain the array excitation distribution that satisfies the specific dynamic range of array excitation. Since it is mainly designed for the waveform of the array, it is difficult to Ensuring Optimal Array Wide Beam Gain

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  • Wide beam gain enhancement method with controllable array excitation dynamic range
  • Wide beam gain enhancement method with controllable array excitation dynamic range
  • Wide beam gain enhancement method with controllable array excitation dynamic range

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Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0051] In order to realize wide beamforming with controllable dynamic range of array excitation, the existing method mainly optimizes the array pattern to obtain the array excitation distribution that satisfies a specific array excitation dynamic range. For an array antenna containing N array elements with arbitrary distribution, it is assumed that the array element position of any nth array element is Then the far-field pattern of the array can be described as:

[0052]

[0053] Among them, E(θ, φ) represents the far-field pattern, θ represents the included angle of the beam direction in the elevation direction (elevation angle), φ represents the included angle of the beam direction in the horizontal direction (azimuth angle), and ω n r...

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Abstract

The invention discloses a wide beam gain enhancement method with a controllable array excitation dynamic range, and belongs to the technical field of antennas. According to the method, the array wide beam gain is directly optimized, and wide beam gain enhancement under the condition of given expected low sidelobe is realized through effective control on array excitation. Compared with a traditional beam forming method based on directional diagram optimization, higher wide beam gain can be obtained under the same condition.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a wide beam gain enhancement method with a controllable dynamic range of array excitation. Background technique [0002] In the process of ground mobile reception of satellite multimedia signals, the array antenna is usually required to have a wider beam to ensure that the array receiving antenna carrier (such as automobiles, ships, airplanes, etc.) is aligned with the satellite in real time during the process of rapid position changes. Due to the long-distance fading of satellite multimedia signals, the signal at the receiving end is weak. Therefore, the array receiving antenna is required to have high gain and low sidelobes to resist background noise and machine noise and achieve good reception of satellite multimedia signals. At the same time, due to the limited working range of the array excitation control elements (such as amplifiers) in practical applications, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F17/11
CPCG06F17/11G06F2218/10G06F2218/00Y02D30/70
Inventor 雷世文杨伟章奥胡皓全赵志钦包永芳陈波田径唐璞何子远
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA