CN206673100U - Double-frequency omnidirectional antenna - Google Patents
Double-frequency omnidirectional antenna Download PDFInfo
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- CN206673100U CN206673100U CN201720431843.6U CN201720431843U CN206673100U CN 206673100 U CN206673100 U CN 206673100U CN 201720431843 U CN201720431843 U CN 201720431843U CN 206673100 U CN206673100 U CN 206673100U
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Abstract
The utility model discloses a kind of double-frequency omnidirectional antenna, belong to antenna assembly field, including discone antenna, wherein also including the upper load plate being oppositely arranged up and down successively and lower reflecting plate, discone antenna is arranged on the upper surface of load plate, multiple hollow branch support columns for shielded signal are connected between load plate and reflecting plate, Monopole are additionally provided between load plate and reflecting plate, Monopole is fixedly connected with load plate.Two band antennas are independent of each other, mutually isolated, and achievable good Bifrequency shared antenna is simple in construction, compact, and two-frequency operation band is wide, and profile is low.
Description
Technical field
The omnidirectional antenna in telemetry communication and field of microwave communication is the utility model is related to, the technology of the Antenna Design is main
Including：Minimized wide-band omnidirectional antenna technology, double-frequency omnidirectional antenna technology.
Background technology
Wireless communication technology is fast-developing at present, and omnidirectional antenna is widely applied to micro- as a kind of special antenna form
In wave communication, 360 ° omni-directional radiation, it is set to realize the transmitting-receiving of signal in all directions.Omnidirectional antenna develops at this stage
Trend be broadband, miniaturization, multifrequency etc..It is applied on aircraft platform more, can so ensure its data between ground
Transmitting, and often the installing space of such platform is limited, multifrequency equipment occupation space is larger, corresponding antenna amount
Increase therewith, so research multi-frequency omni-directional antenna technology has certain realistic meaning.
Omnidirectional antenna mainly has following several antenna forms, but respectively has advantage and disadvantage：
1st, unipole antenna：The form antenna is classical omnidirectional antenna, and it is more using disk standard, cylinder, special etc. structure type
Point is simple in construction, and structure is reliable, and bandwidth of operation is 30%~50% or so, when needing antenna two-frequency operation, and two frequency ranges
Larger such as U/C wave bands are spaced, this antenna can not meet to require：Its wavelength of antenna height 0.25 or so, circumferentially symmetrical structure,
It can not realize the conformal design of flat structure.
2nd, surrounding via micro-strip paster antenna：The antenna form has that profile is low, can integrate active device, and bandwidth is moderate
Feature, its bandwidth of operation are 6%, the antenna compared with the carrier for being suitably mounted to require conformal design, take carrier space compared with
It is small, but the bandwidth of the antenna element is limited, can not meet that broadband system uses.
3rd, double-frequency omnidirectional antenna：Double frequency omnibearing linearly polarized radiation can be realized using double frequency axial mode spiral form, can be achieved
Double frequency arrowband omnidirectional radiation, bandwidth of operation is almost point frequency, and structure is relative complex, poor structural reliability.
In summary, how double-frequency omnidirectional antenna technological difficulties are mainly avoiding high frequency feed cable from radiating low-frequency antenna
Influence, influence omnidirectional antenna radiance, and how on the basis of radiance is not influenceed to increase antenna operating bands
It is wide.
Utility model content
The purpose of this utility model is practical in the weak point in above-mentioned background technology is avoided, one kind especially set out of knowing clearly
The method of two band antennas of effective isolation, it realizes omnidirectional radiation and can realize good binary channels isolation effect.
What the utility model was realized in：
Double-frequency omnidirectional antenna part, including discone antenna 1 and broad band monopole antenna 2, it is characterised in that：Also include on successively
Under the load plate 5 that is oppositely arranged and reflecting plate 7, discone antenna 1 be arranged on the upper surface of load plate 5, in load plate 5 and reflecting plate
It is the antenna of wideband monopole 2 between 7, and is connected with multiple hollow support posts for shielded signal, in load plate 5 and reflecting plate 7
Between be additionally provided with Monopole 3 and be fixedly connected with load plate 5.
Further, the number of described hollow support post is 4, and each open tubular column is uniformly distributed around Monopole.
Double-frequency omnidirectional antenna part according to claim 1, it is characterised in that：Described Monopole and reflecting plate
Gap is left between 7.
Further, it is connected with uhf band coaxial switch 6 for Monopole bottom.
Further, it is connected with C frequency ranges coaxial switch 10 positioned at each support toward bottom below reflecting plate 7.
Further, described discone antenna 1 includes discone 8 and circular reflecting disc 11, and described circular reflecting disc 11 is set
Put in load plate 5, discone 8 is upside down on circular reflecting disc 11.
The utility model relatively has the following advantages with background technology：
1st, the utility model is provided with double-frequency omnidirectional antenna part, and wherein UHF antenna directional diagram, impedance bandwidth is big；C-band
Omni-directional antenna pattern, impedance bandwidth are big, and two band antennas are independent of each other, and cable in connecting pole by passing through, two kinds of wave band phases
Mutually isolation, good double frequency shared can be achieved.
2nd, the utility model antenna structure is simple, compact, and two-frequency operation band is wide, profile is low, brief description of the drawings.
3rd, discone antenna 1 reduces the height of Monopole, and traditional monopole oscillator is 0.25 λ0(λ0Centre frequency corresponds to ripple
It is long), the Monopole is highly 0.14 λ0；
4th, physical support of the support column as high frequency omnidirectional antenna, hollow support post equally have three very important works
With；First, it is regulation antenna match important component, and the position by adjusting matched column can improve antenna standing wave resonance position；
2nd, its important component as omnidirectional radiation, its electric field omnidirectional radiation constituted with Monopole, discone antenna return
Road；Three, the setting of hollow support post can pass through high frequency C frequency range coaxial cables inside it, while not to high frequency omnidirectional antennas
Beta radiation, which is formed, to be influenceed.Reflecting plate is located at antenna bottom, and it is that the installation of fixing coaxial connector is fixed that it, which is acted on, while is used as antenna
The overall flange fixed with carrier installation.
Brief description of the drawings
Fig. 1 is the utility model three dimensional structure diagram；
Fig. 2 is Monopole schematic diagram of the present utility model；
Fig. 3 is the utility model top view；
Embodiment
Referring to the drawings, there is provided a kind of double-frequency omnidirectional antenna part, double-frequency omnidirectional antenna part, including discone antenna 1, its
The load plate 5 and reflecting plate 7, discone antenna 1 for also including being oppositely arranged up and down successively are arranged on the upper surface of load plate 5, are adding
Multiple hollow support posts for shielded signal are connected between support plate 5 and reflecting plate 7, the number of described hollow support post is
4, each open tubular column is uniformly distributed around Monopole, and Monopole 3, monopole are additionally provided between load plate 5 and reflecting plate 7
Oscillator is fixedly connected with load plate 5, and gap is left between described Monopole and reflecting plate 7.
To ensure good signal transmitting and receiving function, C frequency ranges are connected with positioned at each support toward bottom below reflecting plate 7
Coaxial switch 10, uhf band coaxial switch 6 is connected with for Monopole bottom.
Include discone 8 and circular reflecting disc 11, described circle to ensure uniformly to place, and improving described discone antenna 1
Shape reflecting disc 11 is arranged in load plate 5, and discone 8 is upside down on circular reflecting disc 11.
Utility model works general principle is as follows：When transmitting a signal, the coaxial cable of emitter connection corresponding band,
Electromagnetic field is encouraged around single polar body, its field distribution is that circumference is symmetrical, is polarized to vertical polarization, just forms axial pit
" apple shape " omni-directional pattern, when signal receive when, signal is received in the region that apple directional diagram is radiated, in day
Electric current has been encouraged in wire body, and has had cable to be converted to voltage signal, has been conveyed to receiver.
Claims (6)
1. double-frequency omnidirectional antenna part, including discone antenna (1), broad band monopole antenna (2), it is characterised in that：Also include successively
The load plate (5) and reflecting plate (7) being oppositely arranged up and down, discone antenna (1) are arranged on the upper surface of load plate (5), loaded
Multiple hollow support posts for shielded signal are connected between plate (5) and reflecting plate (7), in load plate (5) and reflecting plate (7)
Between be provided with Monopole (3), Monopole is fixedly connected with load plate (5).
2. double-frequency omnidirectional antenna part according to claim 1, it is characterised in that：The number of described hollow support post is
4, each open tubular column is uniformly distributed around Monopole.
3. double-frequency omnidirectional antenna part according to claim 1, it is characterised in that：Described Monopole and reflecting plate
(7) gap is left between.
4. double-frequency omnidirectional antenna part according to claim 1, it is characterised in that：It is connected with for Monopole (3) bottom
Uhf band coaxial switch (6).
5. double-frequency omnidirectional antenna part according to claim 2, it is characterised in that：Positioned at each below reflecting plate (7)
Support toward bottom and be all connected with C frequency ranges coaxial switch (10).
6. double-frequency omnidirectional antenna part according to claim 1, it is characterised in that：Described discone antenna (1) includes disk
Cone (8) and circular reflecting disc (11), described circular reflecting disc (11) are arranged in load plate (5), and discone (8) is upside down in circle
On shape reflecting disc (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431843.6U CN206673100U (en) | 2017-04-24 | 2017-04-24 | Double-frequency omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431843.6U CN206673100U (en) | 2017-04-24 | 2017-04-24 | Double-frequency omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206673100U true CN206673100U (en) | 2017-11-24 |
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ID=60375880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720431843.6U Active CN206673100U (en) | 2017-04-24 | 2017-04-24 | Double-frequency omnidirectional antenna |
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| CN (1) | CN206673100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824760A (en) * | 2022-05-16 | 2022-07-29 | 中国电子科技集团公司第五十四研究所 | C/UHF dual-band broadband composite omnidirectional antenna |
-
2017
- 2017-04-24 CN CN201720431843.6U patent/CN206673100U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824760A (en) * | 2022-05-16 | 2022-07-29 | 中国电子科技集团公司第五十四研究所 | C/UHF dual-band broadband composite omnidirectional antenna |
| CN114824760B (en) * | 2022-05-16 | 2023-12-29 | 中国电子科技集团公司第五十四研究所 | C/UHF double-frequency-band broadband composite omnidirectional antenna |
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