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High-gain low-cross-polarization holographic impedance modulation surface antenna design method and antenna

A design method and high-gain technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as the inability to effectively realize high-gain antennas, and achieve the effects of simple structure, reduced cross-polarization, and increased gain

Inactive Publication Date: 2017-11-21
CHENGDU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a high-gain and low cross-polarization holographic impedance modulation surface antenna design method and antenna, and solve the problem that the existing related traditional technology cannot effectively realize the high-gain antenna

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  • High-gain low-cross-polarization holographic impedance modulation surface antenna design method and antenna
  • High-gain low-cross-polarization holographic impedance modulation surface antenna design method and antenna
  • High-gain low-cross-polarization holographic impedance modulation surface antenna design method and antenna

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Embodiment Construction

[0035] Further describe the technical scheme of the present invention in detail below in conjunction with accompanying drawing:

[0036] In this embodiment, a linearly polarized holographic impedance-modulated surface antenna whose designed operating frequency is 12 GHz and whose main radiation direction deviates from the normal by 30° is taken as an example.

[0037] Such as figure 1 As shown, a high gain and low cross polarization holographic impedance modulation surface antenna design method, including the following steps:

[0038] S1: Establish a simulation model of the lattice unit of the square metal patch 1 structure, and based on the simulation model, solve the eigenfrequency, and then obtain the surface impedance value;

[0039] Specifically, a dielectric plate of Rogers RT5880 is selected as the dielectric material 2, the relative dielectric constant of the dielectric plate is 2.2, and the thickness is 1.6 mm. The model of the square lattice unit is established in ...

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Abstract

The invention discloses a high-gain low-cross-polarization holographic impedance modulation surface antenna design method and an antenna. The design method includes following steps: building a simulation model of a lattice unit of a square metal patch structure to acquire a surface impedance value; establishing a mathematic relation between metal patch geometric parameters and the surface impedance value; establishing a holographic surface modulation formula, and modulating surface impedance to acquire surface impedance distribution in an antenna plane; on the basis of the mathematic relation and the surface impedance distribution, calculating to acquire a patch parameter value of each point in the antenna plane, and building a model of a whole holographic impedance modulation surface antenna; arranging an edge portion of the model to be of a gradually-changing structure. By adopting a holographic impedance modulation surface antenna form of the gradually-changing structure, gain of the antenna can be increased effectively, cross polarization can be lowered, and overall performance of the antenna is improved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a high-gain and low cross-polarization holographic impedance modulation surface antenna design method and the antenna. Background technique [0002] The rapid development of modern wireless communication technology has put forward higher requirements for wireless communication electronic equipment. All wireless communication uses electromagnetic waves to send and receive signals. Antennas play an important role in modern wireless communication systems. The reception and emission of electromagnetic waves need to be completed through antennas. It is one of the core devices in modern wireless communication systems. The electromagnetic characteristics and physical properties of the wireless communication system directly affect the overall performance of the wireless communication system. High gain and low cross polarization have become the development trend of current antenna resea...

Claims

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Application Information

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IPC IPC(8): G06F17/50H01Q1/38
CPCG06F30/367H01Q1/38
Inventor 高山山乔惠民
Owner CHENGDU UNIV
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