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Transmission beam control method employing multi-layer FSSs

A technology of transmitted wave and beam, which is applied in the field of transmission beam control using multi-layer frequency selective surface FSS, can solve the problems of difficult wide-angle scanning of the main beam, low sensitivity, complex feeding network requirements, etc., and achieve large beam deflection characteristics. , the actual operation is simple, the effect of the feeding network is simple

Active Publication Date: 2016-10-12
XIDIAN UNIV
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Problems solved by technology

However, the disadvantage of this method is that the degree of freedom of the antenna for controlling the main wave beam is not large enough to achieve larger angle beam control
However, the disadvantage of this method is that the gain of the transmitting antenna composed of a single-layer frequency selective surface is low, and it does not have high transmission efficiency.
However, the disadvantage of this method is that multiple feed sources are required for feeding, the requirements for the feed network are relatively complex, and it is difficult to realize wide-angle scanning of the main beam
However, the shortcomings of this invention are that the change of the radiation beam direction is not continuous, the sensitivity is low, and there are certain limitations in the application of beam control.

Method used

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] Refer to attached figure 1 , the specific implementation steps of the present invention are further described in detail.

[0046] Step 1, constructing multilayer miniaturized frequency selective surface unit.

[0047]The multi-layer miniaturized frequency selective surface unit is composed of three layers of square metal patches and two layers of square metal rings along the vertical direction, and each layer of square metal patches and each layer of square metal rings are arranged at intervals.

[0048] The side length of each square metal patch is P, the width of each square metal ring is w, the value range of P is 1mm≤P≤8mm, and the value range of w is 0.5mm≤w≤4mm.

[0049] Each layer of square metal patch is attached to the upper surface of the dielectric board, and each layer of square metal ring is attached to the lower surface ...

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Abstract

The invention discloses a transmission beam control method employing multi-layer FSSs. The method comprises the steps of: (1) constructing multi-layer miniaturization frequency selective surface units; (2) determining the sizes of the frequency selective surface units; (3) forming multi-layer frequency selective surfaces FSSs; (4) building the multi-layer frequency selective surfaces FSSs with different pitch angles; (5) building the multi-layer frequency selective surfaces FSSs with different azimuth angles; (6) forming a transmission array antenna; and (7) replacing the multi-layer frequency selective surfaces FSSs. By the transmission beam control method, the large-angle beam control of a transmitting antenna can be effectively achieved; and meanwhile, a high gain effect of the transmitting antenna can be well achieved.

Description

technical field [0001] The invention belongs to the field of electronic technology, and further relates to a transmission beam control method using a multilayer frequency selective surface FSS (Frequency Selective Surface) in the technical field of electromagnetic materials. The invention can realize the large-angle beam control of the transmitting antenna, and can simultaneously It is very good to realize the high gain effect of the transmitting antenna. Background technique [0002] The frequency selective surface refers to an array structure composed of units of the same structure arranged in two-dimensional or three-dimensional periodicity, which can form a band-stop characteristic or a band-pass characteristic in a specific working frequency band. In recent years, on the basis of the traditional multilayer FSS, a design method of a miniaturized unit composed of a multilayer non-resonant structure has been proposed. Using this method, a miniaturized bandpass FSS with bro...

Claims

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Application Information

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IPC IPC(8): H01Q15/00
CPCH01Q15/0026
Inventor 李龙张天亮刘海霞席瑞孔晓洋史琰翟会清
Owner XIDIAN UNIV
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