CN202308278U - Broadband embedded type conformal airborne antenna - Google Patents
Broadband embedded type conformal airborne antenna Download PDFInfo
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- CN202308278U CN202308278U CN2011204366042U CN201120436604U CN202308278U CN 202308278 U CN202308278 U CN 202308278U CN 2011204366042 U CN2011204366042 U CN 2011204366042U CN 201120436604 U CN201120436604 U CN 201120436604U CN 202308278 U CN202308278 U CN 202308278U
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Abstract
The utility model relates to a broadband embedded type conformal airborne antenna, being characterized in that: an antenna base forms a cube structure by using 4 metal connecting rods to support a loading top; the antenna body is arranged in the center of the cube structure; the upper end of the antenna body is connected with the loading top; and the lower end is connected with a feed joint at the center of the antenna base. The utility model provides the broadband embedded type conformal airborne antenna, solving the broadband communication antenna problem in the existing airborne environment, and having the advantages of being light in weight, being fully conformal with a plane and having good aerodynamic performance. Besides, the broadband embedded type conformal airborne antenna can be used in the broadband range of 30MHz to 240MHz, thus further meeting the requirement for the airborne broadband communication system.
Description
Technical field
The present invention relates to the conformal airborne antenna of a kind of broadband flush type, relate to the communications field, antenna is used in the airborne conformal broadband connections that particularly relates to a kind of VHF of working in and uhf band.
Background technology
Install aboard that the communication system of VHF and UHF wave band has strict requirement to antenna, generally need antenna to possess higher gain, firm mechanical structure and good aeroperformance.Consider that from aeroperformance best situation is can fit the fully appearance curve of aircraft of antenna, and is promptly conformal fully with aircraft, can't see antenna in appearance.
At present, at VHF and UHF wave band, common airborne communication antenna majority is sabre shape or circular bar shape, reduces the windage of antenna with expectation as far as possible, but owing to be protrusion aircraft housing and install, and the aeroperformance of aircraft is still had certain influence.
Summary of the invention
The technical problem that solves
For fear of the weak point of prior art, the present invention proposes the conformal airborne antenna of a kind of broadband flush type.
Technical scheme
Flush type conformal airborne antenna in a kind of broadband is characterized in that comprising loading top 4, antenna base 5, feed connection 6,7,4 metal connecting rods 8 of antenna body, insulation Supporting Media 9, loading resistor 10, first inductance coil 11, ferrite block 12 and second inductance coil 13; Antenna base 5 forms cube structure through 4 metal connecting rod 8 supporting loading tops 4; Antenna body 7 is positioned at the cube center, and the upper end links to each other with loading top 4, and the lower end connects the feed connection 6 at antenna base 5 centers; Said loading top 4 is divided into inside and outside two parts by a rectangle annular groove, and the center of 4 frames of rectangle annular groove is provided with two-part ferrite block 12 and inductance coil 13 inside and outside the connection, and ferrite block 12 is a parallel-connection structure with inductance coil 13; Said metal connecting rod 8 gets the middle part and is provided with dielectric 9, and the loading resistor 10 and first inductance coil 11 of parallel connection is installed on the dielectric 9.
Said loading top 4 is a foil structures, glues to be posted on aircraft skin 2 lower surfaces, and is conformal fully with the aircraft configuration profile.
Said antenna body 7 is the metal cage structure.
Said feed connection 6 is a standard N type coaxial fitting.
Said feed connection 6 is a standard N type coaxial fitting.
The resistance value of said loading resistor 10 is 800 ohm.
The inductance value of said first inductance coil 11 is 500nH.
The inductance value of said second inductance coil 13 is 250nH.
Beneficial effect
The conformal airborne antenna of a kind of broadband flush type that the present invention proposes; Solve the broad band communications antenna problem under the present airborne circumstance; Possess in light weight, with aircraft is conformal fully, aeroperformance is good advantage; And in can the wideband section of 30MHz～240MHz, therefore adapt to the demand of airborne wide-band communication system more.
Description of drawings
Fig. 1; The antenna structure generalized section
Fig. 2; The antenna structure schematic perspective view
The voltage standing wave ratio curve of Fig. 3: embodiment
Embodiment
Combine embodiment, accompanying drawing that the present invention is further described at present:
As depicted in figs. 1 and 2, present embodiment broadband flush type airborne antenna comprises that a dicyclo loads top 4, antenna chassis 5, feed connection 6, metal cage type antenna body.Aircraft ring frames shown in the figure 1 is merely sketch map, concrete shape can with illustrate difference to some extent.Present embodiment makes full use of the space between local aircraft metal framework 1 and the surperficial covering 2, and the top loaded antenna is embedded in the packing material 3 between metal framework 1 and the surperficial covering 2.It loads top 4 is that foil structures (referring to accompanying drawing 2) is conformal fully with the aircraft surfaces profile, sticks on aircraft surfaces covering 2 lower surfaces.Load top 4 and be divided into inside and outside two parts, be called outer shroud and inner rectangular respectively by a rectangle annular groove.4 limits of its outer shroud have metal connecting rod 8 to be connected with antenna chassis 5 respectively; Metal connecting rod 8 is made up of two sections; Middle with dielectric 9 supports; The loading resistor 10 and first inductance coil 11 of parallel connection are installed on the dielectric 9, realize that through the ferrite 12 and second inductance coil 13 electromagnetism loads respectively on 4 limits of inner rectangular, to widen the beamwidth of antenna.The antenna bottom is metal antenna chassis 5 and feed connection 6.Antenna body 7 is the metal cage structure, up and down respectively with load top 4 and be connected with feed connection 6.Antenna chassis 5 is installed on aircraft ring frames 1 appropriate location.Because antenna is except that loading top 4, each several part is the wire-like structure, therefore, still can be the same with other positions of aircraft, carry out the material filling, and do not influence the structural stability of aircraft.
It loads top 4 is foil structures, is that the straight-flanked ring slit of 30mm is divided into inside and outside two parts by a width, and the outer annular portion size is 800mm * 500mm, and inner rectangular is of a size of 500mm * 250mm.It is conformal fully with the aircraft surfaces profile to load top 4, sticks on aircraft surfaces covering 2 lower surfaces.Loading 4 limits of 4 its outer shrouds, top has metal connecting rod 8 to be connected with antenna chassis 5 respectively; Metal connecting rod 8 is made up of two sections, and is middle with dielectric 9 supports, and the loading resistor 10 and first inductance coil 11 are installed on the dielectric; The resistance value of loading resistor 10 is 800 ohm; First inductance coil, 11 inductance value are 500nH, and both are the parallel connection relation, use this loading resistor can realize the impedance matching of antenna low-frequency range.Realize that through ferrite 12 and inductance coil 13 electromagnetism loads respectively on 4 limits of inner rectangular; To widen antenna high band bandwidth, wherein, ferrite 12 is a rectangular configuration; Be of a size of 50mm (length) * 30mm (wide) * 50mm (height); With load the metal section and part that 4 both sides, top link to each other and link to each other, the inductance value of second inductance coil 13 is 250nH, is parallelly connected relation between second inductance coil 13 and the ferrite loading.
The antenna bottom is metal antenna chassis 5 and feed connection 6.Antenna chassis 5 is installed on aircraft ring frames 1 appropriate location, and concrete mounting means is decided by the type that antenna is suitable for.Feed connection 6 is general N type cable connector.Antenna body 7 is the metal cage structure, is lined up cylindrically by 6 metal columns, and body diameter is 200mm; The upper end directly links to each other with loading top 4; Concentrate behind center curvature the lower end is a metal column, is connected the height of antenna body 7 with feed connection 6; Promptly load the distance between top 4 and the antenna chassis 5, be 300mm.
Because antenna is except that loading top 4, each several part is the wire-like structure, therefore, still can be the same with other positions of aircraft, carry out the material filling, and do not influence the structural stability of aircraft.The voltage standing wave ratio curve of present embodiment is as shown in Figure 3, can realize the broadband connections demand of 30MHz～240MHz.
Claims (7)
1. the conformal airborne antenna of broadband flush type is characterized in that comprising loading and pushes up (4), antenna base (5), feed connection (6), antenna body (7), 4 metal connecting rods (8), insulation Supporting Media (9), loading resistor (10), first inductance coil (11), ferrite block (12) and second inductance coil (13); Antenna base (5) forms cube structure through 4 metal connecting rods (8) supporting loading top (4); Antenna body (7) is positioned at the cube center, and the upper end links to each other with loading top (4), and the lower end connects the feed connection (6) at antenna base (5) center; Said loading top (4) is divided into inside and outside two parts by a rectangle annular groove, and the center of 4 frames of rectangle annular groove is provided with two-part ferrite block (12) and inductance coil (13) inside and outside the connection, and ferrite block (12) and inductance coil (13) are parallel-connection structure; Said metal connecting rod (8) gets the middle part and is provided with dielectric (9), and the loading resistor (10) and first inductance coil (11) of parallel connection is installed on the dielectric (9).
2. according to the conformal airborne antenna of the said broadband of claim 1 flush type, it is characterized in that: said loading top (4) is foil structures, glues to be posted on aircraft skin (2) lower surface, and is conformal fully with the aircraft configuration profile.
3. according to the conformal airborne antenna of the said broadband of claim 1 flush type, it is characterized in that: said antenna body (7) is the metal cage structure.
4. according to the conformal airborne antenna of the said broadband of claim 1 flush type, it is characterized in that: said feed connection (6) is standard N type coaxial fitting.
5. according to the conformal airborne antenna of the said broadband of claim 1 flush type, it is characterized in that: the resistance value of said loading resistor (10) is 800 ohm.
6. according to the conformal airborne antenna of the said broadband of claim 1 flush type, it is characterized in that: the inductance value of said first inductance coil (11) is 500nH.
7. according to the conformal airborne antenna of the said broadband of claim 1 flush type, it is characterized in that: the inductance value of said second inductance coil (13) is 250nH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204366042U CN202308278U (en) | 2011-11-07 | 2011-11-07 | Broadband embedded type conformal airborne antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204366042U CN202308278U (en) | 2011-11-07 | 2011-11-07 | Broadband embedded type conformal airborne antenna |
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| Publication Number | Publication Date |
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| CN202308278U true CN202308278U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204366042U Expired - Fee Related CN202308278U (en) | 2011-11-07 | 2011-11-07 | Broadband embedded type conformal airborne antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029825A (en) * | 2012-12-11 | 2013-04-10 | 江西洪都航空工业集团有限责任公司 | Embedded antenna installation mouth frame |
| CN105428795A (en) * | 2015-12-18 | 2016-03-23 | 宝鸡烽火诺信科技有限公司 | Miniature low-frequency omnibearing planar antenna |
| CN105609932A (en) * | 2014-11-20 | 2016-05-25 | 中国直升机设计研究所 | Conformal omnidirectional short wave antenna for helicopter short wave radio communication |
| CN107732413A (en) * | 2017-09-22 | 2018-02-23 | 南京航空航天大学 | It is installed on the antenna feeder being connected in aircraft horizontal tail with radio altimeter |
| CN110120579A (en) * | 2018-02-07 | 2019-08-13 | 空中客车运作有限责任公司 | Antenna module for aircraft |
-
2011
- 2011-11-07 CN CN2011204366042U patent/CN202308278U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029825A (en) * | 2012-12-11 | 2013-04-10 | 江西洪都航空工业集团有限责任公司 | Embedded antenna installation mouth frame |
| CN105609932A (en) * | 2014-11-20 | 2016-05-25 | 中国直升机设计研究所 | Conformal omnidirectional short wave antenna for helicopter short wave radio communication |
| CN105428795A (en) * | 2015-12-18 | 2016-03-23 | 宝鸡烽火诺信科技有限公司 | Miniature low-frequency omnibearing planar antenna |
| CN105428795B (en) * | 2015-12-18 | 2019-02-26 | 宝鸡烽火诺信科技有限公司 | A kind of Miniaturized low-frequency omnidirectional plate antenna |
| CN107732413A (en) * | 2017-09-22 | 2018-02-23 | 南京航空航天大学 | It is installed on the antenna feeder being connected in aircraft horizontal tail with radio altimeter |
| CN110120579A (en) * | 2018-02-07 | 2019-08-13 | 空中客车运作有限责任公司 | Antenna module for aircraft |
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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: 20120704 Termination date: 20131107 |