High-gain metamaterial antenna

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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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 Rayspan Corporation in the United States). The required series capacitance and parallel inductance constitute the metamaterial of the composite transmission line. The metamaterial antenna using the composite left and right hand technology must depend on the size of the motherboard and requires a customized design, which limits its application range.

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