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Single beam design method based on 1bit reconfigurable reflectarray

A design method and technology of reflector arrays, which are applied in the directions of manufacturing antenna array devices, antenna arrays, and individually powered antenna arrays, etc., can solve the problems of increasing the cost of antennas, wasting symmetrical beams, etc., and achieve the effect of saving costs and enhancing directivity.

Active Publication Date: 2021-09-03
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1Bit will inevitably waste unnecessary symmetrical beams, and if 2Bit is used, it will increase the cost of the antenna

Method used

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  • Single beam design method based on 1bit reconfigurable reflectarray
  • Single beam design method based on 1bit reconfigurable reflectarray
  • Single beam design method based on 1bit reconfigurable reflectarray

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Refer figure 1 The 1 bit of the 1 bit of the present example includes a first type of metal radiating unit 1, a second type of metal radiating unit 2.

[0030] The first type of metal radiator unit is loaded with a phase delay line 4 on the basis of a conventional reflection array unit, and a PIN pipe 5 is loaded in the phase delay line. When the PIN tube is turned off, the signal does not pass through the entire phase delay line, phase Moved to 0 °; when the PIN pipe is connected, the signal reaches the terminal and reflects the cell patch, and the phase shift is 180 °;

[0031] The second type of metal radiating unit is obtained by changing the length of the phase delay line on the basis of the first type of metal radiating unit, and the phase delay line length L and the phase delay The relationship is:

[0032]

[0033] Among them, k is a wave number, ...

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Abstract

The invention discloses a single-beam design method based on a 1Bit reconfigurable reflection array, which mainly solves the problem that the 1Bit reconfigurable reflection array cannot obtain an ideal single beam. The implementation scheme is to determine the scanning range of the main beam θ of the reconfigurable reflectarray; calculate the compensation phase of the main beam in the center of the scanning range, and encode the compensation phase to get Bit(i, j); select the (i, j) coordinates according to the coding matrix The type of metal radiation unit under the position, and the reflection array composed of two types of metal radiation units is obtained; the compensation phase of the required main beam θ is calculated, and the compensation phase is encoded to obtain the encoded matrix Bit c (i, j); According to the matrix, the PIN tubes of the metal radiation units at each position of the reflectarray are controlled to be on and off, so as to realize beam reconfiguration. The invention can obtain an ideal single beam without increasing the cost, optimizes the performance of the antenna, and can be used for indoor signal blinding and beam scanning in an L-shaped corridor.

Description

Technical field [0001] The present invention belongs to the field of antenna, and more particularly to a single beam design method, which can be used in the L-type corridor chamber signal drawn and beam scan. Background technique [0002] With the development of modern communication, especially in radar communication and public communication networks, the functional diversity and adaptive ability requirements of the antenna are getting higher. One of the most important advantages of reconfigurable reflection array is to achieve beam scanning, and unlike traditional phase-controlled arrays to use complex T / R components, use a low loss phase converter to implement the required functions. The reconstructed reflector of beam scan is the most applicable to 1 bit reconstructed reflection array. By controlling the 180 ° phase difference between the units to achieve the "0" "1" state, it is repeated to quantify the phase of the reflective array unit to be quantified, thereby realizing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/29H01Q21/06H01Q21/00H01Q3/36
CPCH01Q3/36H01Q21/0087H01Q21/061H01Q21/29
Inventor 刘海霞乐舒瑶路泽卿李龙
Owner XIDIAN UNIV