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Small-size low-elevation-angle omnidirectional-radiation dual-circularly-polarized antenna

A technology of omnidirectional radiation and double circular polarization, which is applied in the direction of antenna, radiation element structure, electrical components, etc., can solve the problem of large antenna size, and achieve the effects of size reduction, easy processing, and simple structure

Inactive Publication Date: 2017-09-22
成都电科星天科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention realizes omnidirectional radiation characteristics, but the antenna size is relatively large, so it is not suitable for applications that have strict restrictions on antenna size, such as vehicle systems

Method used

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  • Small-size low-elevation-angle omnidirectional-radiation dual-circularly-polarized antenna
  • Small-size low-elevation-angle omnidirectional-radiation dual-circularly-polarized antenna
  • Small-size low-elevation-angle omnidirectional-radiation dual-circularly-polarized antenna

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Embodiment Construction

[0018] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0019] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0020] figure 1 The side view of the circularly polarized antenna provided for the embodiment of the present invention, such as figure 1 As shown, the small-sized low-elevation angle omnidirectional radiation dual circularly polarized antenna includes a metal floor, a metal microstrip feed structure, a metal microstrip patch, and a dielectric plate between the structures from bottom to top. The plate is provided with a metallized hole connecting the metal microstrip patch and the metal microstrip fe...

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Abstract

The invention discloses a small-size low-elevation-angle omnidirectional-radiation dual-circularly-polarized antenna, which comprises, from the bottom up in sequence, a metal floor, a metal microstrip feeding structure, a metal microstrip patch and dielectric plates arranged between the structures above. Each dielectric plate is provided with plated through holes connecting the metal microstrip patch and the metal microstrip feeding structure. The antenna is characterized in that the metal microstrip patch is provided with a slot and gaps; and the metal microstrip feeding structure is provided with an orthogonal hybrid bridge. The design of the slot and gaps can effectively reduce the size of the antenna; through orthogonal hybrid bridge feeding, dual-circularly-polarized characteristics of the antenna are realized, and the antenna can work in left-handed and right-handed circular polarization states, so that the antenna can be suitable for more use environments, and university of the antenna is improved; and meanwhile, the antenna is simple in structure and easy to process.

Description

technical field [0001] The invention relates to a circularly polarized antenna, in particular to a small-sized low-elevation omnidirectional radiation circularly polarized antenna. Background technique [0002] With the development of satellite technology communication and positioning technology, people's demand for circularly polarized antennas is increasing. Because the microstrip circularly polarized antenna has the advantages of simple feeding, easy processing, and low profile, it is often used in vehicle-mounted satellite communication systems. However, the radiation direction of the traditional microstrip circularly polarized antenna is in the axial direction, that is, perpendicular to the horizontal plane, but in high latitude areas, such a radiation pattern is not conducive to receiving satellite signals. Therefore, it is necessary to design circularly polarized antennas with omnidirectional radiation characteristics at low elevation angles. [0003] An antenna dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q15/24
CPCH01Q1/38H01Q15/242
Inventor 刘思豪孙凯杨德强陈波
Owner 成都电科星天科技有限公司
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