CN209001123U - A kind of VHF/UHF foldable portable steel band omnidirectional antenna - Google Patents
A kind of VHF/UHF foldable portable steel band omnidirectional antenna Download PDFInfo
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- CN209001123U CN209001123U CN201821854410.2U CN201821854410U CN209001123U CN 209001123 U CN209001123 U CN 209001123U CN 201821854410 U CN201821854410 U CN 201821854410U CN 209001123 U CN209001123 U CN 209001123U
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- radiating doublet
- steel band
- vhf
- uhf
- antenna
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Abstract
The utility model discloses a kind of VHF/UHF foldable portable steel band omnidirectional antennas, belong to antenna technical field, including upper radiating doublet, lower radiating doublet, matching network unit, feed element, upper radiating doublet is connected with lower radiating doublet by matching network unit, feed element is arranged in the lower end of lower radiating doublet and is connected with matching network unit, the bent radiating doublet that the upper radiating doublet and lower radiating doublet are made of a plurality of steel band respectively.The utility model aim be to overcome in the prior art it is handheld, bear that type terminal antenna working frequency range is narrow and antenna inflexibility folds, the not technical problem of Portable belt etc..
Description
Technical field
The utility model belongs to antenna technical field, is related to a kind of VHF/UHF foldable portable steel band omnidirectional antenna, can use
In handheld, plate or bear type communication terminal.
Background technique
Antenna is the component for being used to emit or receive electromagnetic wave in wireless device, and basic function is will to be sent by transmitter
The high-frequency current energy conversion come is radio wave and is transmitted to space, the radio wave energy for then transmitting space when receiving
It is converted into the high-frequency current energy transmitted to receiver, to realize the transmitting of electromagnetic signal in any two points.
In Modern Military Communications, it is desirable that communication terminal is provided simultaneously with digital intercom, cluster communication, LTE and ad hoc network etc.
Function, thus require on the one hand its matched antenna must have broadband character, while having the characteristics that miniaturization is portable.
In order to realize that antenna broadband and small size performance, technological staff are studied from multi-panel.Patent
CN206931705U discloses a kind of band ultrashort wave omnidirectional antenna, and low-frequency range uses bottom-loaded monopole antenna form, high
Frequency range uses asymmetric dipole antenna form, and height frequency range synthesizes an output port by combiner, but the patent does not mention
For band limits and size, and antenna is hardware structure, inflexibility and folding.Patent CN107611578A discloses a kind of high
Efficiency wideband omnidirectional whip antenna is realized impedance matching using the method that elongated media substrate adds impedance to convert, but is actually made
With narrower bandwidth (136MHz-167MHz), while also inflexibility and folding on the patent structure, it is inconvenient to carry.Therefore it works
Frequency range and mode are single, cause its use scope narrow, while antenna inflexibility and being folded into existing small handsets antenna
Major defect.
Utility model content
The utility model aim is overcome the deficiencies in the prior art, proposes a kind of VHF/UHF foldable portable steel band
Omnidirectional antenna, for solve it is existing hold, bear that type terminal antenna working frequency range is narrow and antenna inflexibility folds, not Portable belt
Etc. technical problems.
To achieve the above object, the technical solution adopted in the utility model:
A kind of VHF/UHF foldable portable steel band omnidirectional antenna, including upper radiating doublet 2 and lower radiating doublet 6, matching
Network unit 4, feed element, the upper radiating doublet 2 and lower radiating doublet 6 are connected by matching network unit 4, feed element
The lower end of lower radiating doublet 6 is set and is connected with matching network unit 4；The upper radiating doublet 2 and lower radiating doublet 6 difference
The bent radiating doublet being made of a plurality of steel band.
Further limit, the matching network unit 4 is encapsulated in first antenna cover 11, the first antenna cover 11 it is upper
End is connect by the first steel band fixing piece 3 with the lower end of upper radiating doublet 2, and upper radiating doublet 2 is fixed, first antenna cover 11
Lower end connect with the upper end of lower radiating doublet 6 by the second steel band fixing piece 5.
It further limits, the junction of the first steel band fixing piece 3 and upper radiating doublet 2 is excessively connected by arc surface
It connects, the second steel band fixing piece 5 is excessively connect with the junction of lower radiating doublet 6 by arc surface.
It further limits, the feed element includes choke coil and radio frequency out connector 10, and the choke coil is by same
Shaft cable and nonmetallic cylindrical body 9, magnet ring composition, nonmetallic cylindrical body 9 and magnet ring are coaxially socketed up and down, and coaxial cable is close to be wound on
The outer surface of nonmetallic cylindrical body 9 and magnet ring and one end of coaxial cable pass through lower radiating doublet 6 and connect with matching network unit 4
It connects, the connection of the other end and radio frequency out connector 10.
It further limits, the diameter of the magnet ring is greater than the diameter of nonmetallic cylindrical body 9 and coaxial cable is wrapped in non-gold
Belong to the circle number on cylindrical body 9 and is greater than the circle number being wrapped on magnet ring.
It further limits, the feed element is encapsulated in the second antenna house 12, and the upper end of the second antenna house 12 passes through
Third steel band fixing piece 7 is connect with the lower end of lower radiating doublet 6.
It further limits, the junction of the third steel band fixing piece 7 and lower radiating doublet 6 is excessively connected by arc surface
It connects.
It further limits, the position that the upper port of second antenna house 12 is connect with third steel band fixing piece 7 passes through note
Outer cover 8 is moulded to seal.
The utility model compared with prior art, has the advantages that
1, the utility model since upper radiating doublet 2 and lower radiating doublet 6 are all made of a plurality of steel band formed it is bent
Steel band beam allows antenna to be freely bent and fold, so that size when collecting antenna greatly reduces, realizes antenna
Miniaturization.
2, the junction of the first steel band fixing piece 3 of the utility model and upper radiating doublet 2, the second steel band fixing piece 5 with
The junction of lower radiating doublet 6 and the junction of third steel band fixing piece 7 and lower radiating doublet 6 pass through arc surface and excessively connect
It connects, the structural strength of convenience and antenna when guaranteeing antenna collection, folding.
3, the utility model uses dipole element structure, in addition the effect of antenna bottom choke coil, makes the upper and lower oscillator of antenna
The current-symmetrical of unit radiates, and forms the standard apple shape antenna pattern of good dipole antenna, improves communication efficiency.
4, the utility model among upper radiating doublet 2 and lower radiating doublet 6 due to using broadband matching network, broadening
The working band of antenna, allows the antenna meet the requirement of impedance matching in required frequency bandwidth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the upper and lower radiating doublet and 4 attachment structure schematic diagram of matching network unit of the utility model；
Fig. 3 is 11 schematic diagram of internal structure of first antenna cover of the utility model；
Fig. 4 is 12 schematic internal view of the second antenna house of the utility model；
Fig. 5 a, 5b are that the utility model embodiment is stayed in 400MHz-678MHz frequency range and 225MHz-678MHz band antenna
Bobbi experimental result picture.
Wherein: 1, plastic cap；2, upper radiating doublet；3, the first steel band fixing piece；4, matching network unit；5, the second steel
Band fixing piece；6, lower radiating doublet；7, third steel band fixing piece；8, it is molded outer cover；9, nonmetallic cylindrical body；10, radio frequency exports
Connector；11, first antenna cover；12, the second antenna house.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing and specific embodiment, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
As shown in Figure 1, 2, 3, the utility model specifically discloses a kind of VHF/UHF foldable portable steel band omnidirectional antenna,
It is solid including upper radiating doublet 2, lower radiating doublet 6, matching network unit 4, feed element, the first steel band fixing piece 3, the second steel band
Determine part 5 and third steel band fixing piece 7, wherein upper radiating doublet 2 is connect with lower radiating doublet 6 by matching network unit 4,
Matching network unit 4 is encapsulated in first antenna cover 11, and the upper end of first antenna cover 11 passes through the first steel band fixing piece 3 and upper spoke
The lower end connection of oscillator 2 is penetrated, upper radiating doublet 2 is fixed, and the lower end of first antenna cover 11 is by the second steel band fixing piece 5 under
The upper end of radiating doublet 6 connects, and lower radiating doublet 6 is fixed, and feed element is encapsulated in the second antenna house 12, and the second antenna
The upper end of cover 12 is connected and fixed by third steel band fixing piece 7 and the lower end of lower radiating doublet 6, the upper port of the second antenna house 12
The position connecting with third steel band fixing piece 7 is sealed by injection molding outer cover 8.
It should be further noted that the upper radiating doublet 2 and lower radiating doublet 6 were made of a plurality of steel band respectively
Bent radiating doublet, the upper end of upper radiating doublet 2 are cased with flat plastic cap 1, and upper radiating doublet 2 is fixed.In steel
Band outside is all made of fixed after heat-shrink tube heating, keeps the structural strength of radiating doublet 2 and lower radiating doublet 6 good and can be free
Bending is folded and is collected.
It should be further noted that the matching network unit 4 belongs to the routine techniques of communication technique field, use
Conventional LC series-parallel circuit realizes net mate, and the first via of the circuit is 4 capacitor parallel connections, and the second tunnel is 3 inductance strings
Connection, then connects the first via with the second road to be formed.
It should be further noted that the feed element includes choke coil and radio frequency out connector 10, choke coil is
It is wound on composed by nonmetallic cylindrical body 9 and magnet ring outer surface as a thinner coaxial cable of outer diameter is close, nonmetallic cylindrical body 9
It is coaxially socketed up and down with magnet ring, one end of the close outer surface for being wound on nonmetallic cylindrical body 9 and magnet ring of coaxial cable and coaxial cable
It is connect across lower radiating doublet 6 with matching network unit 4, the connection of the other end and radio frequency out connector 10, the diameter of magnet ring is big
It is greater than in the circle number that the diameter and coaxial cable of nonmetallic cylindrical body 9 are wrapped on nonmetallic cylindrical body 9 and is wrapped on magnet ring
Enclose number.
It should be further noted that the junction of the first steel band fixing piece 3 and upper radiating doublet 2, the second steel band
The junction and third steel band fixing piece 7 of fixing piece 5 and lower radiating doublet 6 and the junction of lower radiating doublet 6 are all made of circle
Cambered surface excessively connects, and radian matches, and guarantees the durable and reliable of steel band.
As shown in figure 4, the upper port of second antenna house 12 is equipped with injection molding outer cover 8 and third steel band fixing piece 7, third
7 lower end of steel band fixing piece passes through injection molding outer cover 8 and extends in the second antenna house 12.
Embodiment 1
The upper radiating doublet 2 of the present embodiment is formed by 4 steel bands are staggered relatively two-by-two, and the upper end of upper radiating doublet 2 is cased with
Flat plastic cap 1, lower radiating doublet 6 by 5 steel bands according to 3 and 2 ratio it is staggered relatively form, lower radiating doublet
6 upper end is connect with the lower end of matching network unit 4.
The diameter of the nonmetallic cylindrical body 9 of the present embodiment is 8.5mm, and the diameter of magnet ring is 10.5mm, the length of coaxial cable
Degree is 245mm.The close outer surface for being wound on nonmetallic cylindrical body 9 and magnet ring of coaxial cable, and winding circle number is two circles on magnet ring,
Less than the circle number for being wrapped in nonmetallic 9 outer surface of cylindrical body.
As shown in figure 5a and 5b, the utility model is respectively in 400MHz-678MHz frequency range and 225MHz-678MHz frequency range day
Line standing-wave ratio experimental result picture, abscissa are frequency, and ordinate is standing-wave ratio, it can be seen that the utility model is in U from Fig. 5 a
Band limits standing internal wave is than in 2.5:1 hereinafter, meet requirement of the handheld land mobile communication system to antenna standing wave ratio；From
Fig. 5 b can see the utility model embodiment in 225MHz-678MHz band limits standing internal wave ratio in 3:1 hereinafter, meeting hand
Hold requirement of the type mobile satellite communication system to antenna standing wave ratio.
Embodiment 2
The upper radiating doublet 2 of the present embodiment by 5 steel bands according to 3 and 2 ratio it is staggered relatively form, upper radiation vibration
The upper end of son 2 is cased with flat plastic cap 1, and lower radiating doublet 6 is by 6 steel bands according to staggered relatively group of ratio of 3 and 3
At the upper end of lower radiating doublet 6 is connect with the lower end of matching network unit 4.
Technical solution disclosed in the utility model embodiment is described in detail above, it is used herein specifically
Embodiment is expounded the principle and embodiment of the utility model embodiment, and the explanation of above embodiments is only applicable to
Help understands the principle of the utility model embodiment；At the same time, for those skilled in the art, it is real according to the utility model
Example is applied, there will be changes in terms of specific embodiments and scope of application, in conclusion the content of the present specification should not be understood
For limitations of the present invention.
Claims (8)
1. a kind of VHF/UHF foldable portable steel band omnidirectional antenna, including upper radiating doublet (2) and lower radiating doublet (6),
Distribution network unit (4), feed element, which is characterized in that the upper radiating doublet (2) and lower radiating doublet (6) pass through pair net
Network unit (4) connection, feed element are arranged the lower end in lower radiating doublet (6) and are connected with matching network unit (4)；On described
The bent radiating doublet that radiating doublet (2) and lower radiating doublet (6) are made of a plurality of steel band respectively.
2. VHF/UHF foldable portable steel band omnidirectional antenna according to claim 1, which is characterized in that the pair net
Network unit (4) is encapsulated in first antenna cover (11), and the upper end of the first antenna cover (11) passes through the first steel band fixing piece (3)
It is connect with the lower end of upper radiating doublet (2), and upper radiating doublet (2) are fixed, the lower end of first antenna cover (11) passes through second
Steel band fixing piece (5) is connect with the upper end of lower radiating doublet (6).
3. VHF/UHF foldable portable steel band omnidirectional antenna according to claim 2, which is characterized in that first steel
Excessively connect with fixing piece (3) and the junction of upper radiating doublet (2) by arc surface, the second steel band fixing piece (5) with
The junction of lower radiating doublet (6) is excessively connected by arc surface.
4. described in any item VHF/UHF foldable portable steel band omnidirectional antennas according to claim 1~3, which is characterized in that institute
Stating feed element includes choke coil and radio frequency out connector (10), and the choke coil is by coaxial cable and nonmetallic cylindrical body
(9), magnet ring forms, and nonmetallic cylindrical body (9) and magnet ring are coaxially socketed up and down, and coaxial cable is close to be wound on nonmetallic cylindrical body (9)
With the outer surface of magnet ring and one end of coaxial cable pass through lower radiating doublet (6) connect with matching network unit (4), the other end and
Radio frequency out connector (10) connection.
5. VHF/UHF foldable portable steel band omnidirectional antenna according to claim 4, which is characterized in that the magnet ring
Diameter is greater than the diameter of nonmetallic cylindrical body (9) and coaxial cable is wrapped in the circle number on nonmetallic cylindrical body (9) and is greater than winding
Circle number on magnet ring.
6. VHF/UHF foldable portable steel band omnidirectional antenna according to claim 4, which is characterized in that the feed is single
Member is encapsulated in the second antenna house (12), and the upper end of the second antenna house (12) passes through third steel band fixing piece (7) and lower radiation
The lower end of oscillator (6) connects.
7. VHF/UHF foldable portable steel band omnidirectional antenna according to claim 6, which is characterized in that the third steel
It is excessively connect with the junction of lower radiating doublet (6) by arc surface with fixing piece (7).
8. VHF/UHF foldable portable steel band omnidirectional antenna according to claim 6, which is characterized in that described second day
The position that the upper port of irdome (12) is connect with third steel band fixing piece (7) passes through injection molding outer cover (8) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821854410.2U CN209001123U (en) | 2018-11-12 | 2018-11-12 | A kind of VHF/UHF foldable portable steel band omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821854410.2U CN209001123U (en) | 2018-11-12 | 2018-11-12 | A kind of VHF/UHF foldable portable steel band omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001123U true CN209001123U (en) | 2019-06-18 |
Family
ID=66806681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821854410.2U Active CN209001123U (en) | 2018-11-12 | 2018-11-12 | A kind of VHF/UHF foldable portable steel band omnidirectional antenna |
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| CN (1) | CN209001123U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668609A (en) * | 2020-07-21 | 2020-09-15 | 西安星网天线技术有限公司 | Foldable portable dual-mode ultra-wideband omnidirectional antenna |
| CN111755821A (en) * | 2020-07-15 | 2020-10-09 | 上海海积信息科技股份有限公司 | Integrated antenna |
| CN111987456A (en) * | 2020-07-24 | 2020-11-24 | 南京理工大学 | Integrated low-profile UV antenna for micro-nano satellite |
| CN114361774A (en) * | 2021-04-26 | 2022-04-15 | 上海海积信息科技股份有限公司 | Ultra-wideband antenna |
-
2018
- 2018-11-12 CN CN201821854410.2U patent/CN209001123U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755821A (en) * | 2020-07-15 | 2020-10-09 | 上海海积信息科技股份有限公司 | Integrated antenna |
| CN111668609A (en) * | 2020-07-21 | 2020-09-15 | 西安星网天线技术有限公司 | Foldable portable dual-mode ultra-wideband omnidirectional antenna |
| CN111668609B (en) * | 2020-07-21 | 2021-07-20 | 西安星网天线技术有限公司 | Foldable portable dual-mode ultra-wideband omnidirectional antenna |
| CN111987456A (en) * | 2020-07-24 | 2020-11-24 | 南京理工大学 | Integrated low-profile UV antenna for micro-nano satellite |
| CN111987456B (en) * | 2020-07-24 | 2021-02-12 | 南京理工大学 | Integrated low-profile UV antenna for micro-nano satellite |
| CN114361774A (en) * | 2021-04-26 | 2022-04-15 | 上海海积信息科技股份有限公司 | Ultra-wideband antenna |
| CN114361774B (en) * | 2021-04-26 | 2024-01-05 | 上海海积信息科技股份有限公司 | Ultra-wideband antenna |
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