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Antenna with adjustable and widened antenna band

An antenna and frequency band technology is applied in the field of antennas that can adjust and widen the antenna frequency band, and can solve the problems of inability to perform secondary regulation and insufficient applicability.

Inactive Publication Date: 2017-10-27
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the invention still cannot perform secondary regulation, and there are still deficiencies in applicability

Method used

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  • Antenna with adjustable and widened antenna band
  • Antenna with adjustable and widened antenna band
  • Antenna with adjustable and widened antenna band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Embodiment: An antenna that can be adjusted to widen the frequency band of the antenna, such as Figure 1-Figure 4 As shown, including the dielectric board, the dielectric board is FR4 dielectric board 4 (20mm*30mm*1.6mm, respectively representing width*length*height, the same below), the upper surface of the dielectric board is provided with a metal sheet group, and the metal sheet group constitutes a radiation On the surface, the metal sheet is also connected to the antenna feeder belt arranged on the side of the dielectric board; the lower surface of the dielectric board is provided with a ground plane 3, and a container is embedded in the dielectric board, and a ferrofluid 5 (2mm*9mm *1.6mm), a bias magnet 6 (2mm*3mm / 5mm / 9mm*3mm) for regulating the ferrofluid is provided directly under the outer ferrofluid of the grounding surface. The metal sheet group includes a first metal sheet group 1 and a second metal sheet group 2. The first metal sheet group includes a firs...

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Abstract

The present invention discloses an antenna with an adjustable and widened antenna band, comprising a dielectric plate, wherein a group of metal sheets is arranged on the upper surface of the dielectric plate, the group of metal sheets forms a radiation surface, and the metal sheets are also connected with an antenna feeding strip arranged on the side surface of the dielectric plate; and the lower surface of the dielectric plate is provided with a grounding surface, a container is embedded into the dielectric plate, ferrofluid is provided in the container, and a bias magnet for regulating and controlling the ferrofluid is arranged on the outer side of the grounding surface and right below the ferrofluid. The movement of the bias magnet is reversible, the influence of the bias magnet over the ferrofluid is also reversible, and after the antenna is completely packaged, the antenna band can be adjusted and changed anytime as required.

Description

technical field [0001] The invention relates to the technical field of communication antennas, in particular to an antenna that can be adjusted to widen the frequency band of the antenna. Background technique [0002] Antenna equipment has developed rapidly in the past 30 years, especially multi-band, wide-band, and small size are the performances pursued by antenna equipment. In fact, adding radiating surface branches, adopting defective ground structures and utilizing the effects of coupling are all ways to broaden the antenna frequency band. However, in most methods of widening the antenna frequency band, the target frequency band will be molded once after the antenna is packaged, and cannot be adjusted twice, so the adjustment of the target frequency band is irreversible. [0003] Chinese Patent Publication No. CN105071047A, published on November 18, 2015, the invention patent titled "A Multi-Band Microstrip Antenna with Expanded Impedance Bandwidth" discloses a multi-b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q3/34
Inventor 周浩淼
Owner CHINA JILIANG UNIV
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