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Left-handed-medium-based round moment ring composite pole antenna

A technology of a pole antenna and a left-handed medium is applied in the field of a circular moment loop composite pole antenna, which can solve the problems of low gain, high return loss and high reflection coefficient, and achieve the effect of increasing the dielectric constant and increasing the permeability

Inactive Publication Date: 2014-05-28
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Non-left-handed material composite pole antenna has low gain, narrow frequency band, high reflection coefficient, and high return loss, so the antenna performance is poor and the anti-interference ability is weak

Method used

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  • Left-handed-medium-based round moment ring composite pole antenna
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  • Left-handed-medium-based round moment ring composite pole antenna

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Embodiment Construction

[0022] A circular rectangular ring compound pole antenna based on left-handed medium, the upper structure is as follows figure 1 shown. The size of the upper dielectric substrate 1 of the antenna is H1 (14mm)×L1 (60mm)×D1 (1mm), and the relative permittivity of the upper dielectric substrate 1 is 10. The compound pole antenna 4 is a strip structure, divided into front end, middle end and end, which is installed on the front of the upper dielectric substrate 1. The length of the front end of the compound pole antenna 4 is L2=16mm, the width is H2=1.4mm, and the middle end The length is L3=26mm, the width is H3=0.8mm, the end length is L4=16mm, and the width is H2=1.4mm. At the end of the composite pole antenna 4, six circular-rectangular resonant rings 3 arranged periodically are added, and the circular-rectangular resonant rings 3 are arranged in a period of 2×3. The metal strip 5 connects the end of the composite pole antenna 4 and the circular-rectangular resonant ring 3, ...

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Abstract

The invention discloses a left-handed-medium-based round moment ring composite pole antenna which comprises an upper dielectric substrate (1) and a lower layer dielectric substrate (2) jointed together. The left-handed-medium-based round moment ring composite pole antenna also comprises a composite pole antenna (4) and round moment resonant rings (3) which are symmetrically fixed on one side of the tail end of the composite pole antenna (4) according to a 2x3 array, wherein the composite pole antenna (4) is connected with each round moment resonant ring (3) through metal strips (5); and 6 round moment resonant rings (3) are arranged on the front side of the lower layer dielectric substrate (2), and the positions of the 6 round moment resonant rings (3) are completely opposite to those of the round moment resonant rings (3) on the front side of the upper layer dielectric substrate (1). According to the combination of the round moment resonant rings (3) and the composite pole antenna (4), the magnetic permeability can be increased, the electromagnetic wave resonance strength can be enhanced in a specific frequency range, the antenna gain is increased and the return loss is reduced.

Description

technical field [0001] The invention belongs to the field of miniature antennas, and in particular relates to a circular-rectangular-ring composite pole antenna based on left-handed media. Background technique [0002] The left-handed medium is a new type of artificial electromagnetic medium with a periodic structure that emerged in the late 1990s. It has a double negative material with negative permittivity and magnetic permeability at the same time, that is, when the electromagnetic wave propagates in this dielectric material, the electric field, magnetic field and wave vector obey the left-hand rule, so it is called left-hand material (or negative Refractive material). As a new type of artificial electromagnetic material, it has attracted great research interest in recent years. As early as 1968, V.G.V eselageo theoretically studied the anomalous electromagnetic phenomenon in LHM; in 2000, Smith et al. produced a negative refractive index medium in the microwave segment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38
Inventor 宋雪桦杨庆庆袁昕王昌达谢桂莹王利国尹康明吴朝辉
Owner JIANGSU UNIV
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