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Ultra-wideband dipole antenna

A dipole antenna and dipole technology, which is applied in the direction of resonant antenna, antenna grounding switch structure connection, mid-position feed between antenna terminals, etc., can solve the problems of large size and narrow frequency band of broadband dipole antenna

Inactive Publication Date: 2020-06-19
深圳市远翰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem mainly solved by this application is the technical problem of large size and narrow frequency band of wideband dipole antenna in the prior art

Method used

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Embodiment 1

[0029] Please refer to figure 1 , is a schematic structural diagram of an ultra-wideband dipole antenna in an embodiment, including a dielectric plate 2, a coupling stub structure 3 and two dipole arms 1 of the same shape. The two dipole arms 1 are arranged symmetrically on both sides of the dielectric board 2 , and two dipole arm connection points are mounted symmetrically on both sides of the dielectric board 2 , for electrically connecting the two dipole arms 1 respectively. The dipole arm 1 is a hollow curved shell, including apex and bottom surface, and the outer surface of the dipole arm 1 includes an ellipsoidal surface, and the ellipsoidal surface is a part of an ellipsoidal surface intercepted along the vertical plane of the long axis, and the ellipsoidal surface The apex is used as the apex of the dipole arm 1, and the circular section is used as the bottom surface of the dipole arm 1. The vertices of the two dipole arms 1 are respectively connected to the connectio...

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Abstract

The invention discloses an ultra-wideband dipole antenna, which comprises a dielectric plate, a coupling branch structure and two dipole arms with the same shape; the dipole arms are hollow curved surface shells and are symmetrically arranged by taking the dielectric plate as a central plane so as to be used as a wideband feed source of the dipole antenna, wherein the curved surface of each dipolearm comprises an ellipsoidal curved surface, the ellipsoidal curved surface of each dipole arm is a part cut from an ellipsoidal surface along the vertical plane of the long axis, the vertex of the ellipsoidal surface is the vertex of the dipole arm, and the circular cross section is used as the bottom surface of the dipole arm. The coupling branch knot structure comprises four coupling branch knots which are symmetrically arranged on the periphery of the two dipole arms to serve as a multiband source of the dipole antenna, and each coupling branch knot is of a fold line structure formed by bending strip-shaped metal. The ultra-wideband dipole antenna disclosed by the invention is applied to a low-frequency band so as to solve the technical problems that a common dipole antenna is large in installation size and needs multi-segment design in use.

Description

technical field [0001] The present application relates to the technical field of multi-frequency broadband dipole antennas, in particular to an ultra-wideband dipole antenna. Background technique [0002] Dipole antennas are widely used in the field of mobile communication devices and microwave energy collection and transmission due to their simple structure, low manufacturing cost and good performance. A traditional dipole antenna consists of two conductors fed at a central location with a total length of about half a wavelength and is the basic unit of most antennas. The dipole antenna has a certain improvement in gain pattern performance compared with the monopole antenna, and can obtain satisfactory pattern characteristics, and the dipole antenna has good radiation characteristics, wavelength shortening effect and resonance characteristics. By controlling the relationship between the current amplitude, phase and spatial position on the dipole, the dipole antenna can be ...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q9/16
CPCH01Q1/36H01Q1/50H01Q1/38H01Q9/16
Inventor 苏公瑾沈忠祥饶金红杨晓斌
Owner 深圳市远翰科技有限公司
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