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Magnetic medium loaded low-profile high-performance broadband antenna

A broadband antenna and magnetic medium technology, applied to antennas, antenna coupling, antenna components, etc., can solve the problems of complex processing, large size, narrow bandwidth, etc., and achieve the effect of reducing the antenna profile, stable radiation pattern, and low cost

Active Publication Date: 2022-01-07
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the design of low-profile antennas, microstrip antennas have attracted widespread attention because of their low profile, low cost, and easy processing, but their bandwidth is narrow (relative bandwidth is less than 10%)
Metamaterial is a metal unit structure periodically arranged, which has the same reflection phase in a certain frequency range, and can be used in the design of low-profile antennas to ensure the gain of the antenna while reducing the antenna profile, but it has large size, narrow frequency band, Complex processing and other issues

Method used

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  • Magnetic medium loaded low-profile high-performance broadband antenna
  • Magnetic medium loaded low-profile high-performance broadband antenna
  • Magnetic medium loaded low-profile high-performance broadband antenna

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Embodiment Construction

[0048] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0049]It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in s...

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Abstract

The invention discloses a magnetic medium loaded low-profile high-performance broadband antenna, which comprises an antenna radiation unit, a reflecting plate and a magnetic medium, wherein the reflecting plate is arranged below the antenna radiation unit and is used for reflecting electromagnetic waves radiated by the antenna radiation unit, and the magnetic medium is arranged between the antenna radiation unit and the reflecting plate and is used for inhibiting the interference of the reflected electromagnetic waves. The magnetic medium is arranged between the antenna radiation unit and the reflecting plate to suppress interference of electromagnetic waves reflected by the reflecting plate on the antenna, so that the effect of reducing the profile of the antenna is achieved; moreover, the impedance matching bandwidth, gain and efficiency of the low-profile antenna can be improved by loading the magnetic medium, and the purpose of loading the magnetic medium in part of a specific region to improve the performance of the antenna is achieved in combination with the structural design of the antenna.

Description

technical field [0001] The invention relates to the technical field of antenna engineering, in particular to a low-profile high-performance broadband antenna loaded by a magnetic medium. Background technique [0002] Antennas in practical applications are often installed on conductive carriers such as metal conductors or the ground. These conductive carriers will affect the performance of the antenna’s operating bandwidth and radiation gain. The traditional solution is to separate the antenna from the conductive carrier. The distance is greater than a quarter of the wavelength corresponding to the antenna's working center frequency in free space. Because the frequency of the antenna is inversely proportional to the wavelength of the antenna, in some frequency bands with lower frequencies, the antenna is often erected very high on the conductive carrier. For example, when the antenna works at 30MHz, the wavelength of the free space is 10 meters, and the height (section) of t...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q1/38H01Q1/50H01Q15/14
CPCH01Q1/526H01Q1/38H01Q1/50H01Q15/14
Inventor 郑宗良尹平
Owner SOUTHWEST JIAOTONG UNIV
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