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Broadband low-profile omnidirectional radiation vertical linear polarized dielectric resonating antenna

A dielectric resonant antenna, omnidirectional radiation technology, applied in the direction of antenna, radiating element structure, antenna grounding switch structure connection, etc., can solve the problems of narrow antenna bandwidth, high profile, limited use, etc., to achieve widened frequency band, profile Low, simple structure effect

Inactive Publication Date: 2015-04-22
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of antenna has a narrow bandwidth and a high profile when used for vertical polarization, so its use in vehicle radio communication equipment is limited

Method used

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  • Broadband low-profile omnidirectional radiation vertical linear polarized dielectric resonating antenna
  • Broadband low-profile omnidirectional radiation vertical linear polarized dielectric resonating antenna

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the drawings.

[0011] figure 1 Is a schematic diagram of the side sectional structure of the present invention, figure 2 It is a schematic diagram of the side sectional structure of the present invention. As shown in the figure, the dielectric resonant antenna provided by the present invention includes an inner dielectric ring 1, an outer dielectric ring 2, a metal floor 3, and an antenna feeder 4. The dielectric constant of the inner dielectric ring 1 is ε r1 , The dielectric constant of the outer dielectric ring 2 is ε r2 , The two dielectric constants are determined according to the actual use, the height of the inner dielectric ring 1 is 0.3 to 0.5 cm higher than the height of the outer dielectric ring 2. In this embodiment, the dielectric constant of the inner dielectric ring 1 is ε r1 =10, the dielectric constant of the outer dielectric ring 2 is ε r2 =18, the height of the inner medium ri...

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Abstract

The invention provides a broadband low-profile omnidirectional radiation vertical linear polarized dielectric resonating antenna. According to the technical scheme, the antenna comprises an antenna feeder, a metal floor, an inner dielectric annular ring and an outer dielectric annular ring, wherein the inner dielectric annular ring is processed with a low dielectric constant and the outer dielectric annular ring is processed with a high dielectric constant. The inner dielectric annular ring and the outer dielectric annular ring are fixed on the upper surface of the metal floor and the centers of circles of the inner dielectric annular ring and the outer dielectric annular ring are overlaid. The antenna feeder is provided with a coaxial joint, an outer conductor of the antenna feeder is arranged on the lower surface of the metal floor and is electrically connected with the metal floor, and an inner conductor of the antenna feeder penetrates through the metal floor at the center of circle of the inner dielectric annular ring and extends out vertically from one side of the upper surface of the metal floor. The antenna provided by the invention has the advantages of being simple in structure, easy to process and assemble, low in profile and broad in band.

Description

Technical field [0001] The invention belongs to the technical field of broadband antennas, and more specifically relates to a vertical linear polarization dielectric resonant antenna, and the antenna has the characteristics of broadband low-profile omnidirectional radiation. Background technique [0002] Monopole antenna is a common linear polarization, omnidirectional radiation antenna. Because of its simple production and good omnidirectional performance, it is widely used in radio communications. However, this type of antenna has a narrow bandwidth and a high profile when used for vertical polarization, so its use in vehicular radio communication equipment is limited. Especially in mobile vehicle-mounted passive reconnaissance equipment, broadband, low-profile antennas are required. [0003] The dielectric resonant antenna is a type of resonant antenna made of non-metallic materials, which evolved from the earliest dielectric resonator. When used as a resonator, it is general...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q1/36H01Q5/10H01Q5/50
Inventor 何艳林沂陈国强杨虎杜湘瑜王卫华
Owner NAT UNIV OF DEFENSE TECH
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