CN110752440A - Miniaturized broadband monopole omnidirectional antenna - Google Patents
Miniaturized broadband monopole omnidirectional antenna Download PDFInfo
- Publication number
- CN110752440A CN110752440A CN201911219036.8A CN201911219036A CN110752440A CN 110752440 A CN110752440 A CN 110752440A CN 201911219036 A CN201911219036 A CN 201911219036A CN 110752440 A CN110752440 A CN 110752440A
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- antenna
- annular metal
- dielectric plate
- monopole
- metal sleeve
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- 230000005404 monopole Effects 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 27
- 238000010586 diagram Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
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- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a miniaturized broadband monopole omnidirectional antenna which comprises a bottom plate, an annular metal sleeve, a dielectric plate and an antenna oscillator, wherein the bottom plate is provided with a first end and a second end; 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 annular metal sleeve is additionally arranged at the bottom of the antenna, so that the defect of narrow impedance bandwidth inherent in the monopole antenna is overcome on the premise of ensuring small volume and light weight, the problem of deformation of a directional diagram of a miniaturized monopole antenna is solved, the standard form of the directional diagram of the omnidirectional antenna is ensured, the antenna is simpler in structure and easy to process, and batch production is facilitated.
Description
Technical Field
The invention belongs to the technical field of microwave communication, and particularly relates to a 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.
Disclosure of Invention
The invention 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 invention has the beneficial effects that: the annular metal sleeve is additionally arranged at the bottom of the antenna, so that the defect of narrow impedance bandwidth inherent in the monopole antenna is overcome on the premise of ensuring small volume and light weight, the problem of deformation of a directional diagram of a miniaturized monopole antenna is solved, the standard form of the directional diagram of the omnidirectional antenna is ensured, the antenna is simpler in structure and easy to process, and batch production is facilitated.
Drawings
FIG. 1 is a schematic structural view 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 invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1, the miniaturized wideband monopole omnidirectional antenna of the 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 annular metal sleeve is additionally arranged at the bottom of the antenna, so that the defect of narrow impedance bandwidth inherent in the monopole antenna is overcome on the premise of ensuring small volume and light weight, the problem of deformation of a directional diagram of a miniaturized monopole antenna is solved, the standard form of the directional diagram of the omnidirectional antenna is ensured, the antenna is simpler in structure and easy to process, and batch production is facilitated.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
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 |
|---|---|---|---|
| CN201911219036.8A CN110752440A (en) | 2019-12-03 | 2019-12-03 | Miniaturized broadband monopole omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219036.8A CN110752440A (en) | 2019-12-03 | 2019-12-03 | Miniaturized broadband monopole omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110752440A true CN110752440A (en) | 2020-02-04 |
Family
ID=69285384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911219036.8A Pending CN110752440A (en) | 2019-12-03 | 2019-12-03 | Miniaturized broadband monopole omnidirectional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110752440A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1674353A (en) * | 2004-03-25 | 2005-09-28 | 电子科技大学 | Wideband omnidirectional conic sleeve single-pole sub-antenna |
| CN102683809A (en) * | 2012-03-02 | 2012-09-19 | 四川大学 | Bandwidth miniaturization conformal monopole antenna |
| CN110474157A (en) * | 2019-08-27 | 2019-11-19 | 南京邮电大学 | A kind of mobile communication frequency range printed monopole antenna |
| CN210468107U (en) * | 2019-12-03 | 2020-05-05 | 成都国卫通信技术有限公司 | Miniaturized broadband monopole omnidirectional antenna |
-
2019
- 2019-12-03 CN CN201911219036.8A patent/CN110752440A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1674353A (en) * | 2004-03-25 | 2005-09-28 | 电子科技大学 | Wideband omnidirectional conic sleeve single-pole sub-antenna |
| CN102683809A (en) * | 2012-03-02 | 2012-09-19 | 四川大学 | Bandwidth miniaturization conformal monopole antenna |
| CN110474157A (en) * | 2019-08-27 | 2019-11-19 | 南京邮电大学 | A kind of mobile communication frequency range printed monopole antenna |
| CN210468107U (en) * | 2019-12-03 | 2020-05-05 | 成都国卫通信技术有限公司 | Miniaturized broadband monopole omnidirectional antenna |
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