CN201829617U - High-gain large-power short-wave wideband omni-directional antenna - Google Patents
High-gain large-power short-wave wideband omni-directional antenna Download PDFInfo
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- CN201829617U CN201829617U CN2010205523192U CN201020552319U CN201829617U CN 201829617 U CN201829617 U CN 201829617U CN 2010205523192 U CN2010205523192 U CN 2010205523192U CN 201020552319 U CN201020552319 U CN 201020552319U CN 201829617 U CN201829617 U CN 201829617U
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Abstract
The utility model relates to the technical field of antennas, in particular to a high-gain large-power short-wave wideband omni-directional antenna which is characterized in that a vertical main vibrator adopts three vertical vibrators which have the height H1 and are uniformly and vertically arranged on the circumference with the radius r and has a height above the ground being H0; a vertical parasitical vibrator adopts three vertical vibrators which have the height H3 and are uniformly and vertically arranged on the circumference with the radius R; a feed vertical short vibrator has a height H2 and is vertically arranged on the center of the circle of the antenna, the feed vertical short vibrator is electrically connected with the bottoms of the three vertical main vibrators at the position with the height H0 through a metal straight pipe and is intersected with the center of the circle, the lower end of the feed vertical short vibrator is connected with an inner conductor of a feed coaxial line, and an outer conductor of the feed coaxial line is directly grounded, thus forming a feed point at the bottom of the antenna. The antenna has the advantages of less loss, high efficiency, high gain, large bearing power, smaller volume, simple structure, convenience in connection and erection, and capability of being used by a high-frequency ground wave radar or a short wave communication transceiving antenna.
Description
Technical field
The utility model relates to antenna technical field, relates in particular to the high-power short wave bandwidth omnidirectional antenna of a kind of high-gain.
Background technology
The short wave broadband antenna is one of key equipment of short wave communication and wideband high-frequency radar.Existing short wave broadband omnidirectional antenna mainly contains three major types: the first kind is umbrella awl, fan awl and cage type etc.; Second class is a wire loading broad-band antenna; The 3rd class is a widely used pair of whip antenna.
Though umbrella awl, fan awl and cage type class antenna frequency band broad, it mainly is to realize by self huge space scale, and lead is more, complex structural designs, thereby floor space and space are bigger, should not install in occasions with limited space, for example should not install on the naval vessel.
Wire loading broad-band antenna loads broadening antenna frequency band with the R-L-C circuit element on original antenna, for example, and inverted V-shaped broad-band antenna, upright loading broad-band antenna etc.Though wire loading broad-band antenna has the advantage in the little and broadband of relative size, the efficient of antenna, gain and to bear power lower.
Two whip antennas, although do not adopt the R-L-C loading technique also can realize broadband, frequency band reaches even reaches 4 octaves, the standing wave of intermediate bands is too big.Often need in the practical application two secondary two whip antennas are used in combination, this has increased the complexity of system undoubtedly, and in order to reduce standing-wave ratio, must not sacrifice efficient, gain and power capacity sometimes, the design broadband matching network.
What deserves to be mentioned is, on the basis of two whip antennas, Xu Xueyun etc. have invented a kind of three whip short wave bandwidth omnidirectional antennas, and (patent No.: 200720032771.4), the two whip antennas of its bandwidth ratio are wideer, owing to adopted the matching network technology, its actual efficiency, gain and power capacity all are affected.
The utility model content
At the technical problem that above-mentioned shortwave omnidirectional antenna exists, the purpose of this utility model provides the high-power broadband of a kind of high-gain shortwave omnidirectional antenna, can bear the 10kw transmitting power, volume is relatively little, and structure is simple relatively, and efficient is higher, it is bigger to gain, and frequency covers 7.5-26MHz.
For achieving the above object, the utility model adopts following technical scheme:
Comprise vertical main element, feed vertically short oscillator, vertical parasitic oscillator and feed coaxial line, it is H that described vertical main element adopts three height
1Vertical dipole, evenly be vertically set on the circumference that radius is r, and terrain clearance is H
0
It is H that described vertical parasitic oscillator adopts three height
3Vertical dipole, evenly be vertically set on the circumference that radius is R;
The vertically short oscillator height of described feed is H
2, positioned vertical is in the antenna center of circle, and the vertically short oscillator of described feed is in height H
0The place is electrically connected and is intersected in the center of circle with the bottom of three vertical main elements by metal straight pipe, the described feed vertically lower end of short oscillator links to each other with the feed coaxial inner conductor, the direct ground connection of described feed coaxial outer conductor, feedback distributing point at the bottom of the formation antenna.
The top of three contour vertical main elements and three contour vertical parasitic oscillators all is in open-circuit condition.
Supporter under three vertical main element bottoms is a column high-frequency insulation materials for support bar, and the height that described support bar is fixed in ground and support bar is H
0, the terrain clearance H of three vertical main elements
0Be not less than 0.6 meter.
The bottom of three vertical parasitic oscillators directly is electrically connected with ground.
The height H of three vertical main elements
1Be not more than 0.2 λ
1, λ
1Wavelength for the lowest operating frequency correspondence.
The length H of three vertical parasitic oscillators
3Be about 0.18 λ
2, λ
2Wavelength for the maximum operating frequency correspondence.
Described feed is the height H of short oscillator vertically
2Be about 0.7 meter.
Radius of a circle r is about 1.2 meters, and radius of a circle R is about 2.5 meters.
The short oscillator of described main element, parasitic oscillator and feed all adopts the galvanized alloy aluminum pipe of the about 40-50 millimeter of diameter.
Described main element is connected the galvanized alloy aluminum pipe that straight tube all adopts the about 5-10 millimeter of diameter with the metal that feed is lacked between the oscillator, and the position that is electrically connected that vertically short oscillator of described vertical main element, feed and metal connect between the straight tube is a cable connector.
The utlity model has following advantage and good effect:
1) of the present utility model three contour be H
1Vertical main element and a height be H
2The little short oscillator of vertical electricity do as a wholely, not only volume is less, and only needs an output port;
2) of the present utility model three contour be H
3Vertical parasitic oscillator be evenly distributed on around three main elements because oneself height is less, connects and set up conveniently;
3) position that is electrically connected between main element of the present utility model, the short oscillator of feed and the metal connection straight tube installs cable connector additional, dismounting, easy for installation.
4) the utility model decreases the standing-wave ratio of high band because three main elements are suitably raised, because the electromagnetic coupled effect of three parasitic oscillators, so the intermediate frequency band standing-wave ratio is obviously reduced;
5) the utility model is not because antenna loads and matching network, and aerial loss is little, and the efficient height gains greatly, and the power that bears is big;
6) the utility model is in the 7.5-26MHz frequency range, and the standing-wave ratio of 95% frequency is less than 2.5, and the standing-wave ratio of all the other frequencies is less than 2, and gain G is at 5-8dBi.
Description of drawings
Fig. 1 is the antenna arrangement structural representation of the high-power broadband of the high-gain shortwave omnidirectional antenna that provides of the utility model.
Fig. 2 is the structure vertical view of the utility model antenna.
Fig. 3 is the design curve of the utility model antenna standing wave ratio and frequency relation.
Fig. 4 is the design curve of the utility model antenna gain and frequency relation.
Embodiment
Technical thought of the present utility model is: do not adopt R-L-C to concentrate and load and the matching network technology, do not use such as the umbrella awl to rely on increase antenna space yardstick to realize wide band method like that yet, and be based on the electromagnetic coupled realization antenna broadband broadening of three sky oscillators, parasitic oscillator and a feed oscillator.
The utility model is described in further detail in conjunction with the accompanying drawings with specific embodiment below:
Referring to antenna arrangement schematic diagram shown in Figure 1, the utility model provide the spoke body of the high-power broadband of high-gain shortwave omnidirectional antenna comprise that vertical dipole 1, vertical dipole 2, vertical dipole 3 constitute, the height of these three vertical dipoles is identical, its height H
10.2 λ that is about lowest operating frequency, lower end terrain clearance H
0Be 0.5 meter, and evenly distributed be that the bottom interconnects alternately in center of circle O point by metal straight pipe 8, metal straight pipe 9, metal straight pipe 10 on 1.2 meters the circumference in radius r;
Parasitic oscillator comprises that vertical dipole 4, vertical dipole 5, vertical dipole 6 constitute, and the height of these three vertical dipoles is identical, its height H
20.18 λ that is about maximum operating frequency, and evenly distributed be on 2.5 meters the circumference at radius R, bottom and ground is ground connection directly;
Three contour main elements are separately fixed on the ground by high-frequency insulation material 12, high-frequency insulation material 13, high-frequency insulation material 14 respectively, with the distance H on ground
0Be about 0.5m.
The antenna structure vertical view as shown in Figure 2.Wherein, " 1 ", " 2 ", " 3 " expression main element 1,2,3 projections respectively on ground; " 4 ", " 5 ", " 6 " are represented parasitic oscillator 4,5,6 projections on ground respectively; The electric little feed oscillator 7 of " 7 " expression is in the projection on ground; Connection metal straight pipe 8 between " 8 " expression main element 1 and the feed oscillator 7 is in the projection on ground; Connection metal straight pipe 8 between " 9 " expression main element 2 and the feed oscillator 7 is in the projection on ground; Connection metal straight pipe 10 between " 10 " expression main element 3 and the feed oscillator 7 is in the projection on ground; 11 expression feeder cables; " 12 ", " 13 ", " 14 " are represented 12,13,14 projections on ground of high-frequency insulation support bar respectively; R represents the radius of a circle that main element is installed; R represents the radius of a circle that parasitic oscillator is installed.
Figure 3 shows that the design curve of antenna standing wave ratio and frequency relation.Wherein, solid line is represented the variation of antenna standing wave ratio with frequency.The result shows, except the standing-wave ratio of minority frequency greater than 2.5, all the other standing-wave ratios satisfy the requirement of the high-power transmitting antenna of short wave bandwidth less than 2.0.
Figure 4 shows that the design curve of antenna gain and frequency relation.The result shows that in the 7.5-26MHz frequency range, antenna gain is greater than 5dBi.
Above embodiment is only for the usefulness that the utility model is described; but not to restriction of the present utility model; person skilled in the relevant technique; under the situation that does not break away from spirit and scope of the present utility model; can also make various conversion or modification; therefore all technical schemes that are equal to all fall into protection range of the present utility model.
Claims (10)
1. the high-power short wave bandwidth omnidirectional antenna of high-gain comprises vertical main element, feed vertically short oscillator, vertical parasitic oscillator and feed coaxial line, it is characterized in that:
It is H that described vertical main element adopts three height
1Vertical dipole, evenly be vertically set on the circumference that radius is r, and terrain clearance is H
0
It is H that described vertical parasitic oscillator adopts three height
3Vertical dipole, evenly be vertically set on the circumference that radius is R;
The vertically short oscillator height of described feed is H
2, positioned vertical is in the antenna center of circle, and the vertically short oscillator of described feed is in height H
0The place is electrically connected and is intersected in the center of circle with the bottom of three vertical main elements by metal straight pipe, the described feed vertically lower end of short oscillator links to each other with the feed coaxial inner conductor, the direct ground connection of described feed coaxial outer conductor, feedback distributing point at the bottom of the formation antenna.
2. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 is characterized in that:
The top of three contour vertical main elements and three contour vertical parasitic oscillators all is in open-circuit condition.
3. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
Supporter under three vertical main element bottoms is a column high-frequency insulation materials for support bar, and the height that described support bar is fixed in ground and support bar is H
0, the terrain clearance H of three vertical main elements
0Be not less than 0.6 meter.
4. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
The bottom of three vertical parasitic oscillators directly is electrically connected with ground.
5. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
The height H of three vertical main elements
1Be not more than 0.2 λ
1, λ
1Wavelength for the lowest operating frequency correspondence.
6. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
The length H of three vertical parasitic oscillators
3Be about 0.18 λ
2, λ
2Wavelength for the maximum operating frequency correspondence.
7. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
Described feed is the height H of short oscillator vertically
2Be about 0.7 meter.
8. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
Radius of a circle r is about 1.2 meters, and radius of a circle R is about 2.5 meters.
9. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
Described vertical main element, the vertical short oscillator with feed of vertical parasitic oscillator all adopt the galvanized alloy aluminum pipe of the about 40-50 millimeter of diameter.
10. the high-power short wave bandwidth omnidirectional antenna of high-gain according to claim 1 and 2 is characterized in that:
Described vertical main element is connected the galvanized alloy aluminum pipe that straight tube all adopts the about 5-10 millimeter of diameter with the vertical metal of lacking between the oscillator of feed, and the position that is electrically connected that vertically short oscillator of described vertical main element, feed and metal connect between the straight tube is a cable connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205523192U CN201829617U (en) | 2010-10-08 | 2010-10-08 | High-gain large-power short-wave wideband omni-directional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205523192U CN201829617U (en) | 2010-10-08 | 2010-10-08 | High-gain large-power short-wave wideband omni-directional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829617U true CN201829617U (en) | 2011-05-11 |
Family
ID=43968135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205523192U Expired - Fee Related CN201829617U (en) | 2010-10-08 | 2010-10-08 | High-gain large-power short-wave wideband omni-directional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829617U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760938A (en) * | 2012-07-20 | 2012-10-31 | 杨瑞典 | Enhanced omnidirectional antenna oscillator |
| CN103545603A (en) * | 2013-10-31 | 2014-01-29 | 深圳市华一通信技术有限公司 | Broadband omnidirectional antenna |
| CN105226388A (en) * | 2015-09-25 | 2016-01-06 | 陕西永诺信息科技有限公司 | A kind of full frequency band navigation antenna |
-
2010
- 2010-10-08 CN CN2010205523192U patent/CN201829617U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760938A (en) * | 2012-07-20 | 2012-10-31 | 杨瑞典 | Enhanced omnidirectional antenna oscillator |
| CN103545603A (en) * | 2013-10-31 | 2014-01-29 | 深圳市华一通信技术有限公司 | Broadband omnidirectional antenna |
| CN105226388A (en) * | 2015-09-25 | 2016-01-06 | 陕西永诺信息科技有限公司 | A kind of full frequency band navigation antenna |
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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: 20110511 Termination date: 20111008 |