Method for constructing tight coupling ultra wide band antenna array based on irregular subarrays

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, strong applicability, and guaranteed consistency

Active Publication Date: 2019-05-28
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 ult...

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  • Method for constructing tight coupling ultra wide band antenna array based on irregular subarrays
  • Method for constructing tight coupling ultra wide band antenna array based on irregular subarrays
  • Method for constructing tight coupling ultra wide band antenna array based on irregular subarrays

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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 coupling ultra wide band antenna array based on irregular subarrays. The method comprises the following steps: S1, arranging the irregular subarrays by taking the maximum entropy as a condition according to the antenna scale; S2, enabling input ports of the power divider to be in one-to-one corresponding connection with ports of the T/R assembly through strip lines with equal lengths; S3, acquiring an active directional diagram of each sub-array; and S4, performing amplitude-phase weighting according to the active directional diagram ofeach sub-array to synthesize an overall directional diagram, and optimizing the overall directional diagram to construct and complete the tight coupling ultra-wideband antenna array based on the irregular sub-arrays. The whole feed network adopts a strip line form and is processed in a multilayer microwave circuit board, the profile height of the whole array is hardly increased, the port power distribution can be realized, and the consistency of the amplitude and the phase of each output port is ensured. The method overcomes the defect that the space between the tight coupling array units issmaller than the half wavelength, facilitates engineering application, and is high in 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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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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