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A Construction Method of Tightly Coupled UWB Antenna Array Based on Irregular Subarray

A technology of an ultra-wideband antenna and a construction method, which is applied in the field of construction of a tightly coupled ultra-wideband antenna array, can solve problems such as poor applicability, and achieve the effects of less gain loss, ensuring consistency, and being beneficial to engineering applications.

Active Publication Date: 2020-01-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a method for constructing a tightly coupled ultra-wideband antenna array based on irregular subarrays, which solves the problem of poor applicability of existing irregular subarray arrangement methods

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  • A Construction Method of Tightly Coupled UWB Antenna Array Based on Irregular Subarray
  • A Construction Method of Tightly Coupled UWB Antenna Array Based on Irregular Subarray
  • A Construction Method of Tightly Coupled UWB Antenna Array Based on Irregular Subarray

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Embodiment Construction

[0043] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0044] Such as figure 1 As shown, the construction method of the tightly coupled ultra-wideband antenna array based on the irregular sub-array includes the following steps:

[0045] S1. Arranging irregular sub-arrays according to the size of the antenna under the condition of maximum entropy;

[0046] S2. Obtain the position of the input port of the power divider connected to each irregular sub-array, so that the input por...

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Abstract

The invention discloses a method for constructing a tight-coupled ultra-wideband antenna array based on irregular subarrays, which includes the following steps: S1, arranging irregular subarrays according to the scale of the antenna under the condition of maximum entropy; S2, making a power divider The input port is connected to the T / R component port one by one through a strip line of equal length; S3, obtain the active pattern of each sub-array; S4, perform amplitude-phase weighting and synthesis according to the active pattern of each sub-array to obtain the overall Direction pattern, and optimize the overall pattern, and build a tightly coupled ultra-wideband antenna array based on irregular sub-arrays. The entire feeding network of the present invention is in the form of stripline, processed in a multi-layer microwave circuit board, which hardly increases the section height of the entire array, but can realize port power distribution, and ensure the consistency of the amplitude and phase of each output port sex. The invention overcomes the shortcoming that the distance between tightly coupled array elements is less than half a wavelength, is beneficial to engineering application, and has strong applicability.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a construction method of a tightly coupled ultra-wideband antenna array based on irregular subarrays. Background technique [0002] Phased array antennas are widely used in radar and communication fields because they can achieve beam scanning by changing the phase, but at the same time, each unit needs to be connected to a T / R component, which greatly increases the antenna manufacturing cost. In the 1980s and 1990s, the sparse array organizational structure was adopted, but the gain dropped significantly, which was not conducive to project realization. R.J.Mailloux, Andrea Massa and others proposed the method of using irregular sub-arrays to realize the reduction of T / R components. The advantage of this scheme is that while saving T / R components, the gain drop is not obvious. It is too complicated, and their scheme can only realize one-dimensional scanning, which is poor in eng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q21/29H01Q1/50
Inventor 杨仕文马彦锴肖仕伟陈益凯屈世伟胡俊
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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