High-gain metamaterial antenna

A metamaterial, high-gain technology, applied to antennas, antenna grounding devices, and devices that enable antennas to work in different bands at the same time, can solve problems such as long R&D cycle and quality stability, and achieve low environmental requirements and high gain , a wide range of effects

Active Publication Date: 2013-04-03
KUANG CHI INST OF ADVANCED TECH +1
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Problems solved by technology

In addition, it needs to be re-adjusted for different products, the development cycle is long, and the quality stability of mass production has a great impact
[0005] Existing metamaterial antennas based on composite left-handed transmission line technology are designed based on transmission line theory (such as the metamaterial antenna of Rayspa

Method used

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[0031] The high-gain metamaterial antenna of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0032] The metamaterial antenna is designed based on artificial electromagnetic material technology. Artificial electromagnetic material refers to a topological metal structure carved into a specific shape of a metal sheet, and the topological metal structure of a specific shape is set on a basis of a certain dielectric constant and permeability. The equivalent special electromagnetic material processed and manufactured on the material, its performance parameters mainly depend on its sub-wavelength topological metal structure of specific shape. In the resonant frequency band, artificial electromagnetic materials usually exhibit high dispersion characteristics. In other words, the impedance, capacitive inductance, equivalent permittivity and magnetic permeability of the antenna will change drastically with fr...

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Abstract

The invention relates to a high-gain metamaterial antenna, comprising a dielectric substrate, a metal structure, a feeder and a reference ground, wherein the metal structure, the feeder and the reference ground are all arranged on the dielectric substrate; the feeder is coupled with the metal structure; the reference ground comprises a first reference ground unit and a second reference ground unit located on the two opposite surfaces of the dielectric substrate; and the first reference ground unit enables one end of the feeder to be formed into a microstrip line. The high-gain metamaterial antenna provided by the invention obtains the desire effective dielectric constant and magnetic conductivity distribution by precisely controlling the topological form of the metal structure and rationally arranging the microstrip line; therefore, the antenna is capable of realizing good impedance matching in the working frequency range, completing energy conversion at high efficiency and obtaining ideal radiation pattern; and the antenna is small in occupied volume, low in requirement for the environment, high in gain, wide in application range, and capable of serving as the built-in antenna for various electronic products.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a high-gain metamaterial antenna. Background technique [0002] With the rapid development of semiconductor technology, higher and higher requirements are put forward for the integration of today's electronic systems, and the miniaturization of devices has become a technical issue of great concern to the entire industry. As an important part of the electronic system, the radio frequency module is facing the difficult technical challenge of device miniaturization. The existing radio frequency module usually includes main components such as frequency mixing, power amplifier, filter, radio frequency signal transmission, matching network and antenna. Among them, the antenna is the radiating unit and receiving device of the final radio frequency signal, and its working characteristics will directly affect the working performance of the entire electronic system. [0003] However, the...

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q5/01H01Q5/10
Inventor 刘若鹏徐冠雄李岳峰
Owner KUANG CHI INST OF ADVANCED TECH
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