CN201812924U - Vertical polarization broadband dipole antenna - Google Patents
Vertical polarization broadband dipole antenna Download PDFInfo
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- CN201812924U CN201812924U CN2010205623307U CN201020562330U CN201812924U CN 201812924 U CN201812924 U CN 201812924U CN 2010205623307 U CN2010205623307 U CN 2010205623307U CN 201020562330 U CN201020562330 U CN 201020562330U CN 201812924 U CN201812924 U CN 201812924U
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Abstract
The utility model discloses a vertical polarization broadband dipole antenna; the housing of the antenna is in a hollow cylinder shape, and the upper end of the antenna is closed; a reflection chassis is a step cylinder body which is fixedly connected on the lower end of the antenna housing; the center of the reflection chassis is provided with a through hole; an active matrix is in a cylindrical structure made of brass material, and is vertical to the upper surface of the reflection chassis; an SMA-KFD108 radio frequency connecting piece is spun with the bottom of the active matrix; four parasitic matrixes are in the same form, have equal spacing with the active matrix, are distributed around the active matrix in the circumferential direction with the spacing as the radius, are vertically arranged on the upper surface of the reflection chassis, are made of brass rods, and are in cylindrical structures. The vertical polarization broadband dipole antenna meets the working requirements of broadband with quite small reflection chassis and the installation structure by changing the number and sizes of the parasitic matrixes of the antenna.
Description
Technical field
The present invention relates to a kind of antenna, especially a kind of dipole antenna.
Background technology
At present, the antenna of high speed mobile platform data chainning observing and controlling such as airborne or vehicle-mounted and communication system is many based on dipole or blade antenna, these antenna often gains lower (0dB is following), working band bandwidth narrower (less than 5%), and antenna beam is difficult to satisfy the requirement of 3dB beamwidth in positive and negative 25 degree pitching in pitch orientation simultaneously.And in the mobile measurement and control area of high speeds such as airborne platform for the expanding communication command range, satisfy the radiation of antenna perpendicular polarization, broadband communications requirement, also will satisfy simultaneously characteristics such as miniaturization, fabrication and installation be easy, new perpendicular polarization, omnidirectional, broadband, the design of mobile observing and controlling antenna with higher gain are increasingly important.The Sun Xiangzhen of the BeiJing, China Research Institute of Telemetry is at article " Study of Wide-band Vertical-polarization Antenna " (Sun Xiangzhen, Study of Wide-band Vertical-polarization Antenna [J]. remote measuring and controlling, 25 (5): 31-37), according to traditional sleeve-dipole antenna principle, introduce two parasitic a period of time and the alternative original tube-in-tube structure in bigger reflection chassis, propose a kind of theoretical model of " cactus " antenna by name, the antenna standing wave can be 30% nearly in the expansion of the bandwidth 1.5 below.But this antenna model only is based on the theoretical principle computational analysis, do not consider the substantive requirements of form of engineering actual installation design, do not consider the influence of antenna material (radome and chassis material) to antenna structure yet, and expand bandwidth by increase reflection chassis size and cause integrated antenna size (the chassis diameter is greater than 1/2nd wavelength) bigger than normal, can not satisfy high speed mobile platform miniaturization installation requirements such as airborne platform.
Summary of the invention
In order to overcome the deficiency that prior art can not satisfy high speed mobile platform miniaturization installation requirements such as airborne platform, the invention provides a kind of perpendicular polarization wideband dipole antenna, by changing the antenna number and the size in parasitic a period of time, reached the requirement of broadband operation equally with less reflection chassis (less than 1/2nd wavelength) and mounting structure.
The technical solution adopted for the present invention to solve the technical problems is: comprise radome, active a period of time, parasitic a period of time, a period of time insulation fixed support, insulation spacer, reflection chassis and SMA-KFD108 radio frequency connector.Radome uses laminated epoxy glass-cloth to make, and is shaped as the tubular of hollow, and the upper end is a sealing surface, lower ending opening, and the radome wall thickness is one of percentage wavelength.At 2 percent wavelength places, distance radome bottom, the circumferencial direction equal intervals of radome wall has several fixing holes.The diameter of radome is 1/2nd wavelength, and height is greater than four/three-wavelength.The reflection chassis is as the support and the fixture in antenna a period of time, global design is the step cylinder, last body diameter is of a size of 1/2nd wavelength, following body diameter size is than one of the big percentage of last body diameter wavelength, and last cylinder should guarantee that with following cylinder thickness sum the screw thread heart of SMA-KFD108 radio frequency connector stretches out periphery 5mm.Cylinder upper surface 2 percent wavelength places have and the corresponding fixing hole of the fixing hole of radome under distance on the circumferencial direction of cylinder on the reflection chassis.Reflection center chassis place has a through hole, and through-hole diameter requires identical with the dielectric diameter of SMA-KFD108 radio frequency connector inside, wherein places insulation spacer, the upper surface of insulation spacer and the upper surface flush that reflects the chassis.Play to antenna match and to the corrective action of antenna pattern on the reflection chassis, for alleviating the overall weight of antenna, can guarantee the structural strength of antenna again, and the hard aluminum is adopted on the reflection chassis.Active a period of time is the cylindrical structure of brass material, and length is 1/2nd wavelength, and diameter is percent three-wavelength, has the internal thread hole of fixed installation usefulness in the bottom.Active a period of time, its bottom end face and insulation spacer surface were tangent perpendicular to the upper surface on reflection chassis, and the screw thread heart of SMA-KFD108 radio frequency connector passes insulation spacer and active a period of time bottom thread endoporus closely spins.Four parasitic a period of time forms are identical, equate with active a period of time spacing, and are distributed in around active a period of time in that the circumferencial direction that with this spacing is radius is first-class.Parasitic a period of time bottom directly links to each other by screw thread is hinged with the reflection chassis, vertically is installed on reflection chassis upper surface.Parasitic a period of time also adopts the brass bar to make, and structure is a cylinder, and diameter is percent three-wavelength, and length is quarter-wave, and height and the identical external screw thread of reflection chassis thickness are left in the bottom.The radio frequency connector is the SMA-KFD108 radio-frequency joint of standard, plays the effect that the coaxial cable in 50 Europe and antenna reliably are connected.Wavelength mentioned above is the operation wavelength of antenna.
Described insulation spacer is the cylinder of teflon material, diameter is identical with reflection center chassis through-hole diameter, thickness is identical with the thickness of cylinder on the reflection chassis, and the center has a diameter and the identical through hole of SMA-KFD108 radio frequency connector inner wire diameter.
Also respectively open a through hole according to the SMA-KFD108 installation requirement on the both sides of the centre bore position on reflection chassis, this lead to the hole site should consider to dodge the installing hole in superparasitization a period of time, can satisfy the installation requirement of SMA-KFD108 again.
To have a 1mm wide for the bottom that is easily installed in parasitic a period of time, and length is the mounting groove of a period of time diameter.
The spacing adjusting range in described parasitic a period of time and active a period of time is at 1/10th wavelength to five/wavelength.
The present invention also comprises a period of time insulation fixed support, selects the teflon material for use, and integral body is cylinder, and thickness is 2 percent wavelength, and diameter is active a period of time to add two times of a period of time diameters with parasitic a period of time spacing.Have the installation through hole of five a period of time diameter above a period of time insulation fixed support according to the active a period of time and the relative position in parasitic a period of time, position a period of time insulation fixed support according to installing hole directly was socketed on corresponding a period of time, played support, fixation to antenna a period of time.
The invention has the beneficial effects as follows: owing to adopt the main body of active a period of time of 1/2nd wavelength as aerial radiation, the distortion that four quarter-wave passive parasitic a period of time are the conventional sleeve antenna structure is played balanced balanced current, the effect of coupling standing wave.In order further to reach the effect of widening frequency band, it is the cylinder of percent three-wavelength that each a period of time of antenna is adopted diameter of section, has effectively reduced slenderness ratio.And further balanced balanced current is played on the reflection chassis of brand-new design, the effect of control antenna radiation direction.By adopting above design to make antenna satisfy perpendicular polarization, omnidirectional radiation requirement, antenna gain reaches 2dB, and antenna 3dB beamwidth is 65 °, standing wave 1.5 following frequency bandwidths nearly 30%.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the schematic diagram of perpendicular polarization broadband dipole antenna structure of the present invention.
Fig. 2 is a perpendicular polarization broadband dipole aerial mounting structure device schematic diagram of the present invention.
Fig. 3 is the transparent effect view of perpendicular polarization broadband dipole antenna structure device of the present invention.
Fig. 4 is the bottom view of perpendicular polarization broadband dipole antenna structure of the present invention.
Fig. 5 is the standing wave test curve of perpendicular polarization broadband dipole antenna of the present invention.
Fig. 6 is the E face directional diagram test curve of perpendicular polarization broadband dipole antenna of the present invention.
Fig. 7 is the H face directional diagram test curve of perpendicular polarization broadband dipole antenna of the present invention.
Among the figure, 1. radome, 2. active a period of time, 3. parasitic a period of time, 4. a period of time insulation fixed support, 5. insulation spacer, 6. radio frequency connector set bolt, 7. reflection chassis, 8. radome set bolt, 9. radome set bolt spring shim, 10. radome set bolt pad, 11. radio frequency connector setting-up piece, 12. radio frequency connector hold-down nuts, 13. radio frequency connector SMA-KFD 108.
Embodiment
By constantly optimizing and revising the antenna scheme that active a period of time, parasitic a period of time, active a period of time and parasitic a period of time spacing and reflection chassis size can obtain to satisfy standing wave and directional diagram requirement, embodiment is as follows:
Fig. 1 is the schematic diagram of perpendicular polarization broadband dipole antenna structure of the present invention.It is that the thick laminated epoxy glass-cloth of 1mm is made that radome 1 adopts thickness, and the radome internal diameter is 45mm, and external diameter is 46mm, highly is 56mm.
Fig. 2 is a perpendicular polarization broadband dipole aerial mounting structure device schematic diagram of the present invention.Apart from 1.5mm place, radome bottom, on the circumferencial direction of radome end face, have 8 location holes that equidistantly are nominally M1.6.Active a period of time 2 is adopted the brass material, and cylinder, diameter are 4mm, and length scale is 53.3mm, has dark 10mm in the bottom, and size is the internal thread hole in M2 aperture.The bottom screw thread that the inner core of radio frequency connector SMA-KFD108 13 passes insulation spacer 5 and active a period of time 2 closely spins.Insulation spacer is the cylinder of teflon material, and diameter is 5mm, and thickness is 3mm, the through hole that it is the M2 size that the center has a diameter.Insulation spacer 5 places in the installing hole at reflection 7 centers, chassis, and upper surface and the upper surface flush that reflects chassis 7 play support and insulation buffer action to active a period of time 2.Four parasitic a period of time 3 forms are identical, the brass material, cylinder, diameter are 4mm, length scale is 28.7mm, equate with active a period of time 2 spacing for 9mm, and the circumferencial direction that with the spacing is radius first-class be distributed in active a period of time 2 around.Its bottom has high 5mm size and is the external screw thread of M4, closely spins with the M4 internal thread hole that stays in advance on the reflection chassis 7.A period of time insulation fixed support 4 adopts teflon material, and integral body is cylinder, and thickness is 2mm, and diameter length is 19mm.The installation through hole that it is 4mm that a period of time insulation fixed support 4 top relative positions according to active a period of time 2 and parasitic a period of time 3 have five diameter, and directly be socketed on corresponding a period of time according to the location hole position of active a period of time 2 with parasitic a period of time 3, play the effect of fixed support.Reflection chassis 7 is designed to the step cylinder, and two-layer cylinder gross thickness is 4mm, the thick 3mm of last cylinder, and following cylinder thickness is 1mm.Last body diameter 45mm plays main adjustment directional diagram and current balance type effect, and following round platform diameter is that 47mm plays the effect to radome 1 fixed support.Reflection 7 centers, chassis have a through hole, and diameter is 5mm, is the reservation putting hole of insulation spacer 5 and the installation preformed hole of SMA-KFD108 13 inner wires.Around the centre bore position, have the internal thread through hole of four M4 sizes, be used for fixing and install four parasitic a period of time 3 with respect to the position in parasitic a period of time 3.Also respectively open the through hole of a M2 size on the both sides of centre bore position, be the location and installation hole of SMA-KFD108 13.The cylinder distance has 8 location holes identical with 8 position of positioning hole of radome in cylinder upper surface 1.5mm place down on the reflection chassis 7, and fixing with radome 1 by standard component radome set bolt 8, radome set bolt spring shim 9 and radome set bolt pad 10.Radio frequency connector SMA-KFD108 13 is commercially available standard radio frequency connector, is fixedly installed on the reflection chassis 7 by radio frequency connector set bolt 6, radio frequency connector setting-up piece 11 and radio frequency connector hold-down nut 12.
Claims (5)
1. perpendicular polarization wideband dipole antenna, comprise radome, active a period of time, parasitic a period of time, a period of time insulation fixed support, insulation spacer, reflection chassis and SMA-KFD108 radio frequency connector, it is characterized in that: radome uses laminated epoxy glass-cloth to make, be shaped as the tubular of hollow, the upper end is a sealing surface, lower ending opening, the radome wall thickness is one of the percentage wavelength, at 2 percent wavelength places, distance radome bottom, the circumferencial direction equal intervals of radome wall has several fixing holes, the diameter of radome is 1/2nd wavelength, height is greater than four/three-wavelength, the reflection chassis is the step cylinder, last body diameter is of a size of 1/2nd wavelength, following body diameter size is than one of the big percentage of last body diameter wavelength, last cylinder guarantees that with following cylinder thickness sum the screw thread heart of SMA-KFD108 radio frequency connector stretches out periphery 5mm, cylinder upper surface 2 percent wavelength places have and the corresponding fixing hole of the fixing hole of radome under distance on the circumferencial direction of cylinder on the reflection chassis, reflection center chassis place has a through hole, through-hole diameter requires identical with the dielectric diameter of SMA-KFD108 radio frequency connector inside, wherein place insulation spacer, the upper surface of insulation spacer and the upper surface flush that reflects the chassis, the hard aluminum is adopted on the reflection chassis, active a period of time is the cylindrical structure of brass material, length is 1/2nd wavelength, diameter is percent three-wavelength, have the internal thread hole of fixed installation usefulness in the bottom, active a period of time is perpendicular to the upper surface on reflection chassis, its bottom end face and insulation spacer surface are tangent, the screw thread heart of SMA-KFD108 radio frequency connector passes insulation spacer and active a period of time bottom thread endoporus closely spins, four parasitic a period of time forms are identical, equate with active a period of time spacing, and be distributed in around active a period of time in that the circumferencial direction that with this spacing is radius is first-class, parasitic a period of time bottom directly links to each other by screw thread is hinged with the reflection chassis, vertically be installed on reflection chassis upper surface, parasitic a period of time also adopts the brass bar to make, structure is a cylinder, diameter is percent three-wavelength, length is quarter-wave, height and the identical external screw thread of reflection chassis thickness are left in the bottom, and described wavelength is the operation wavelength of antenna.
2. perpendicular polarization wideband dipole antenna according to claim 1, it is characterized in that: described insulation spacer is the cylinder of teflon material, diameter is identical with reflection center chassis through-hole diameter, thickness is identical with the thickness of cylinder on the reflection chassis, and the center has a diameter and the identical through hole of SMA-KFD108 radio frequency connector inner wire diameter.
3. perpendicular polarization wideband dipole antenna according to claim 1, it is characterized in that: a through hole is also respectively opened on the both sides of the centre bore position on described reflection chassis, this lead to the hole site had both been dodged the installing hole in superparasitization a period of time, can satisfy the installation requirement of SMA-KFD108 again.
4. perpendicular polarization wideband dipole antenna according to claim 1 is characterized in that: it is wide that the bottom in described parasitic a period of time has 1mm, and length is the mounting groove of a period of time diameter.
5. perpendicular polarization wideband dipole antenna according to claim 1 is characterized in that: the spacing in described parasitic a period of time and active a period of time is 1/10th wavelength to five/wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205623307U CN201812924U (en) | 2010-10-14 | 2010-10-14 | Vertical polarization broadband dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205623307U CN201812924U (en) | 2010-10-14 | 2010-10-14 | Vertical polarization broadband dipole antenna |
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| Publication Number | Publication Date |
|---|---|
| CN201812924U true CN201812924U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205623307U Expired - Fee Related CN201812924U (en) | 2010-10-14 | 2010-10-14 | Vertical polarization broadband dipole antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964447A (en) * | 2010-10-14 | 2011-02-02 | 西北工业大学 | Vertical polarization wideband dipole antenna |
| CN109286080A (en) * | 2018-10-23 | 2019-01-29 | 北京无线电测量研究所 | A kind of polarization device |
| CN113452387A (en) * | 2021-07-09 | 2021-09-28 | 武汉华臻志创科技有限公司 | Transmitter precision adjustment device |
-
2010
- 2010-10-14 CN CN2010205623307U patent/CN201812924U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964447A (en) * | 2010-10-14 | 2011-02-02 | 西北工业大学 | Vertical polarization wideband dipole antenna |
| CN101964447B (en) * | 2010-10-14 | 2013-01-16 | 西北工业大学 | Vertical polarization wideband dipole antenna |
| CN109286080A (en) * | 2018-10-23 | 2019-01-29 | 北京无线电测量研究所 | A kind of polarization device |
| CN113452387A (en) * | 2021-07-09 | 2021-09-28 | 武汉华臻志创科技有限公司 | Transmitter precision adjustment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20121014 |