CN210468107U - Miniaturized broadband monopole omnidirectional antenna - Google Patents
Miniaturized broadband monopole omnidirectional antenna Download PDFInfo
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- CN210468107U CN210468107U CN201922133019.4U CN201922133019U CN210468107U CN 210468107 U CN210468107 U CN 210468107U CN 201922133019 U CN201922133019 U CN 201922133019U CN 210468107 U CN210468107 U CN 210468107U
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- annular metal
- dielectric plate
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Abstract
The utility model discloses a miniaturized broadband monopole omnidirectional antenna, which comprises a bottom plate, an annular metal sleeve, a dielectric plate and an antenna oscillator; the annular metal sleeve and the dielectric plate are fixedly connected with the bottom plate; the annular metal sleeves are arranged on the outer side of the dielectric plate in parallel; the antenna element is arranged on the outer side of the dielectric plate. The utility model discloses install an annular metal covering additional bottom the antenna, under its small, the light in weight's of assurance prerequisite, overcome the narrow defect of monopole antenna's inherent impedance bandwidth, and solved the problem that miniaturized monopole antenna directional diagram warp, guaranteed the standard type of omnidirectional antenna directional diagram, antenna structure is more simple, easily processing, and the batch production of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of microwave communication, especially, relate to miniaturized broadband monopole omnidirectional antenna.
Background
The polar antenna is the most widely applied antenna in antenna engineering technology, has application in engineering systems such as communication, broadcasting, television, radar, navigation, telemetering and the like, is widely applied to various wave bands from long wave to microwave, can be independently used as an antenna to work, can be used as an array element of the antenna, and can also be used as a partial structure of some antennas. However, the impedance bandwidth of the conventional vertical thin-wire monopole antenna is narrow, the length is high, and the volume is large. At present, various mature modes exist for widening the impedance bandwidth of the monopole, but the monopole is miniaturized and the reflection ground area needs to be reduced, so that the maximum antenna gain direction deflection angle is inevitably caused by the reduction of the reflection ground area, and a gain directional diagram becomes an nonstandard omnidirectional directional diagram.
At present, the method for obtaining a standard omnidirectional directional pattern by a monopole antenna mainly comprises: to a dipole antenna or to increase the reflective ground area. However, the size of the antenna is increased by changing the dipole antenna and increasing the area of the reflecting ground, so that the miniaturization of the antenna cannot be realized; the length of the dipole antenna is twice that of the monopole antenna, the height of the dipole antenna is doubled by adopting the dipole, the transmitting ground area is enlarged, and the size of the antenna is also enlarged. The impedance bandwidth of the conventional vertical thin-line monopole antenna is narrow, and the directional diagram of the existing monopole omnidirectional antenna is inevitably not a standard omnidirectional directional diagram any more after miniaturization due to the structure, the electrical performance and the like of the antenna.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a miniaturized broadband monopole omnidirectional antenna, which comprises a bottom plate, an annular metal sleeve, a dielectric plate and an antenna oscillator; the annular metal sleeve and the dielectric plate are fixedly connected with the bottom plate; the annular metal sleeves are arranged on the outer side of the dielectric plate in parallel; the antenna element is arranged on the outer side of the dielectric plate.
The beneficial effects of the utility model reside in that: the utility model discloses install an annular metal covering additional bottom the antenna, under its small, the light in weight's of assurance prerequisite, overcome the narrow defect of monopole antenna's inherent impedance bandwidth, and solved the problem that miniaturized monopole antenna directional diagram warp, guaranteed the standard type of omnidirectional antenna directional diagram, antenna structure is more simple, easily processing, and the batch production of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of an annular metal sleeve;
fig. 3 is a schematic diagram of a monopole antenna structure.
In the figure: 1-a monopole antenna dielectric layer; 2-monopole antenna metal patch; 3-ring-shaped metal sheet; 4-bottom plate.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the miniaturized wideband monopole omnidirectional antenna of the present invention comprises a bottom plate, an annular metal sleeve, a dielectric plate and an antenna oscillator; the annular metal sleeve and the dielectric plate are fixedly connected with the bottom plate; the annular metal sleeves are arranged on the outer side of the dielectric plate in parallel; the antenna element is arranged on the outer side of the dielectric plate.
Furthermore, the antenna oscillator is a microstrip metal patch.
The bottom plate is a metal bottom plate. As shown in fig. 2, the structure of the annular metal sleeve is schematically shown; as shown in fig. 3, which is a schematic diagram of a monopole antenna structure. The annular metal sleeve and the medium plate are both arranged perpendicular to the metal bottom plate. The antenna oscillator adopts the microstrip metal paster mode, and the microstrip metal paster sets up in the surface of dielectric plate, widens metal paster width and thickens the medium microwave panel thickness that uses, and the homoenergetic increases antenna impedance bandwidth.
The utility model discloses install an annular metal covering additional bottom the antenna, under its small, the light in weight's of assurance prerequisite, overcome the narrow defect of monopole antenna's inherent impedance bandwidth, and solved the problem that miniaturized monopole antenna directional diagram warp, guaranteed the standard type of omnidirectional antenna directional diagram, antenna structure is more simple, easily processing, and the batch production of being convenient for.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (2)
1. The miniaturized broadband monopole omnidirectional antenna is characterized by comprising a bottom plate, an annular metal sleeve, a dielectric plate and an antenna oscillator; the annular metal sleeve and the dielectric plate are fixedly connected with the bottom plate; the annular metal sleeves are arranged on the outer side of the dielectric plate in parallel; the antenna element is arranged on the outer side of the dielectric plate.
2. The miniaturized wideband monopole omnidirectional antenna of claim 1, wherein the antenna elements are microstrip metal patches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133019.4U CN210468107U (en) | 2019-12-03 | 2019-12-03 | Miniaturized broadband monopole omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133019.4U CN210468107U (en) | 2019-12-03 | 2019-12-03 | Miniaturized broadband monopole omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210468107U true CN210468107U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922133019.4U Active CN210468107U (en) | 2019-12-03 | 2019-12-03 | Miniaturized broadband monopole omnidirectional antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN210468107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752440A (en) * | 2019-12-03 | 2020-02-04 | 成都国卫通信技术有限公司 | Miniaturized broadband monopole omnidirectional antenna |
-
2019
- 2019-12-03 CN CN201922133019.4U patent/CN210468107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752440A (en) * | 2019-12-03 | 2020-02-04 | 成都国卫通信技术有限公司 | Miniaturized broadband monopole omnidirectional antenna |
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