A Miniaturized Broadband Antenna

A broadband antenna and microstrip line technology, applied in the field of miniaturized broadband antennas, can solve the problem that the antenna cannot take into account the miniaturization and broadbandization, and achieves the advantages of shielding backward radiation and external interference, smooth input impedance, and reducing the weight of the antenna. Effect

Active Publication Date: 2018-06-26
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem that existing antennas cannot take into account both miniaturization and broadband, and a miniaturized broadband antenna is provided to reduce the size of the antenna and meet the detection requirements of the system for targets

Method used

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  • A Miniaturized Broadband Antenna
  • A Miniaturized Broadband Antenna
  • A Miniaturized Broadband Antenna

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "left", "right", "front", "rear", etc., are only referring to the directions of the drawings. Therefore, the directions used are only for illustration and are not intended to limit the protection scope of the present invention.

[0026] In an exemplary embodiment of the present invention, a miniaturized broadband antenna is proposed, such as figure 1 As shown, it consists of a radiator 1, an insulating dielectric substrate 2, a metal back cavity 3 and a matching device 4.

[0027] The radiator 1 is made of metal material and printed on the upper surface of the insulating dielectric substrate 2 in a planar shape. The mater...

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Abstract

The invention discloses a miniaturized broadband antenna, which comprises a radiator, an insulating medium substrate and a metal back cavity; the metal back cavity is a U-shaped cavity formed by a lower bottom surface and two left and right opposite side walls; the insulating medium substrate covers the The opening of the upper top surface of the metal back cavity; the radiator is printed on the upper surface of the insulating dielectric substrate in a planar shape; the radiator is composed of 2 fan-shaped units and 2 microstrip lines; the vertices of the 2 fan-shaped units form the radiator Feed point; two fan-shaped units are symmetrically distributed on the left and right sides of the insulating dielectric substrate, and the feed points of the two fan-shaped units are opposite and separated by a certain distance; each microstrip line is a curved and extended line; the microstrip The two ends of the line are respectively connected to the bottom end points on the same side of the two fan-shaped units; the two microstrip lines are symmetrically distributed on the front and rear sides of the insulating dielectric substrate. The invention can reduce the size of the antenna and meet the detection requirements of the system for the target.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a miniaturized broadband antenna. Background technique [0002] In recent years, due to the rapid development of electronic space technology, the types and forms of antennas used in equipment are increasing, and the requirements for their electrical performance are also increasing. Early antennas, such as blade antennas, single (di) pole antennas, and loaded rod antennas, have problems of narrow bandwidth and large size, which can no longer meet the current use requirements. The important technology to promote the miniaturization and broadbandization of antennas has become a research hotspot and trend, especially in the field of ultrashort wave antennas. [0003] With the maturity of all aspects of UAV technology, its use is becoming more and more extensive, and its combat effectiveness is becoming more and more prominent. As an indispensable part of wireless communication, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/50
CPCH01Q1/36H01Q1/50
Inventor 曹卫平曹颖楠李思敏王定雄
Owner GUILIN UNIV OF ELECTRONIC TECH
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