CN204375952U - A kind of monopole antenna - Google Patents
A kind of monopole antenna Download PDFInfo
- Publication number
- CN204375952U CN204375952U CN201520048864.0U CN201520048864U CN204375952U CN 204375952 U CN204375952 U CN 204375952U CN 201520048864 U CN201520048864 U CN 201520048864U CN 204375952 U CN204375952 U CN 204375952U
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- CN
- China
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- antenna
- monopole antenna
- reactance compensation
- sleeve
- coaxial
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Abstract
The utility model discloses a kind of monopole antenna.This monopole antenna is applied to field of antenna, to solve that existing monopole antenna structure is compact not and the defect that processing cost is high, the cycle is long.This monopole antenna comprises: coaxial antenna forms main body, and described coaxial antenna outside reactance compensating body and sleeve surround, and described sleeve is between described reactance compensation body and described coaxial antenna, and there is a radiating slot middle and lower part of described reactance compensation body.The utility model is applicable to airborne monopole antenna.
Description
Technical field
The utility model relates to field of antenna, particularly relates to a kind of monopole antenna.
Background technology
Current airborne monopole antenna, mainly complete acceptance and the transmitting of wireless device front end signal, eyes and the ear of wireless device, traditional monopole antenna adopts glass cloth to make radome, as shown in Figure 1, coaxial antenna 1 forms main body, overcoat glass cloth radome 6, filler 7 is had between coaxial antenna 1 and glass cloth radome 6, this structure is not tightly urged, and needs specialized designs mould to design glass cloth radome 6, adds cost and the cycle of antenna processing, this structure can not lightning protection, also needs other lightning protection to equip.
Utility model content
The utility model provides a kind of monopole antenna, effectively can overcome existing monopole antenna structure and not tightly urge and the defect that the cost of processing is high, the cycle is long.
First aspect of the present utility model provides a kind of monopole antenna, comprise: coaxial antenna (1) forms main body, described coaxial antenna (1) outside reactance compensating body (2) and sleeve (3) surround, described sleeve (3) is positioned between described reactance compensation body (2) and described coaxial antenna (1), and there is a radiating slot (4) middle and lower part of described reactance compensation body (2).
This monopole antenna, the material of described reactance compensation body (2) is metal.
This monopole antenna, the material of described sleeve (3) is metal.
This monopole antenna, described sleeve (3) part inlay, between described reactance compensation body (2) and coaxial antenna (1), is directly connected with described reactance compensation body (2).
A kind of monopole antenna that the utility model provides, by reactance compensation body and sleeve technology, forms antenna cover body, and compact conformation, stability is high, have lightning protection function, is easy to processing and manufacturing simultaneously, saves manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing monopole antenna;
The structural representation of a kind of monopole antenna that Fig. 2 provides for the utility model.
Accompanying drawing illustrates:
1: coaxial antenna;
2: reactance compensation body;
3: sleeve;
4: radiating slot;
5: feed seat;
6: glass cloth radome;
7: filler.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The structural representation of a kind of monopole antenna that Fig. 2 provides for the utility model, shown in figure 2, this monopole antenna comprises: coaxial antenna 1 forms main body, described coaxial antenna 1 outside reactance compensating body 2 and sleeve 3 surround, described sleeve 3 is between described reactance compensation body 2 and described coaxial antenna 1, the bandwidth of sleeve 3 and reactance compensation body 2 co-extensive coaxial antenna, forms antenna cover body simultaneously.There is a radiating slot 4 middle and lower part of described reactance compensation body 2, its role is to the radiation of antenna and has accepted the function of electromagnetic signal.
Form antenna cover body by reactance compensation body 2 and sleeve 3, compact conformation, stability is high, there is lightning protection function, be easy to processing and manufacturing simultaneously, save manufacturing cost.
The material preferred metal materials of described reactance compensation body 2 and described sleeve 3.
Adopt reactance compensation body 2 and the sleeve technology 3 of simple metal, ensure that the broadband character of antenna.
Described sleeve 3 part inlay, between described reactance compensation body 2 and coaxial antenna 1, is directly connected with reactance compensation body 2.
As shown in Figure 2, coaxial antenna 1 is positioned at the center of feed seat 5, coaxial heart and crust interconnection, forms the loop of a short circuit.And the characteristic impedance of coaxial antenna 1 is equal with the characteristic impedance of feed seat 5.Coaxial antenna 1 is surrounded by reactance compensation body 2, and sleeve 3, between reactance compensation body 2 and coaxial antenna 1, is directly connected with reactance compensation body 2 by screw buckle, and is separated by air between coaxial antenna.Inverted U groove is opened to position, reactance compensation body 2 middle and lower part and obtains radiating slot 4.
The position of inverted U groove is approximately higher than greatly chassis 1/8 wavelength, and width is also about 1/8 wavelength.
The aobvious perception of imaginary part of the whole input impedance of coaxial antenna 1, in order to ensure the beamwidth of antenna, adopts reactance compensation body 2.Reactance compensation body 2 adopts digital milling machine directly to process or die sinking is directly formed, and constitutes cover body and the chassis of monopole antenna, adds bandwidth simultaneously, ensure that DC earthing.
In order to launch the bandwidth of monopole antenna further, introduce sleeve technology.Sleeve 3 part inlay, between reactance compensation body and coaxial antenna, is directly connected to ensure ground connection with the former.Sleeve technology can make very little with frequency change of antenna feed impedance, so the broadening bandwidth of antenna significantly.
The radiance of antenna is completed by radiating slot 4, and the size in gap can be regulated to improve directional diagram and the gain of antenna.Finally, the suitable composite material in gap is filled.Particularly, the standing-wave ratio cooperation that the size in gap and the selection of composite material will and be tested regulates, to reach directional diagram and gain requirement.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (4)
1. a monopole antenna, it is characterized in that, comprise: coaxial antenna (1) forms main body, described coaxial antenna (1) outside reactance compensating body (2) and sleeve (3) surround, described sleeve (3) is positioned between described reactance compensation body (2) and described coaxial antenna (1), and there is a radiating slot (4) middle and lower part of described reactance compensation body (2).
2. monopole antenna according to claim 1, is characterized in that, the material of described reactance compensation body (2) is metal.
3. monopole antenna according to claim 1, is characterized in that, the material of described sleeve (3) is metal.
4. monopole antenna according to claim 1, is characterized in that, described sleeve (3) part inlay, between described reactance compensation body (2) and coaxial antenna (1), is directly connected with described reactance compensation body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048864.0U CN204375952U (en) | 2015-01-23 | 2015-01-23 | A kind of monopole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048864.0U CN204375952U (en) | 2015-01-23 | 2015-01-23 | A kind of monopole antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204375952U true CN204375952U (en) | 2015-06-03 |
Family
ID=53332142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520048864.0U Expired - Fee Related CN204375952U (en) | 2015-01-23 | 2015-01-23 | A kind of monopole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204375952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110574233A (en) * | 2017-08-07 | 2019-12-13 | 株式会社友华 | Antenna device |
-
2015
- 2015-01-23 CN CN201520048864.0U patent/CN204375952U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110574233A (en) * | 2017-08-07 | 2019-12-13 | 株式会社友华 | Antenna device |
| CN110574233B (en) * | 2017-08-07 | 2023-10-03 | 株式会社友华 | Antenna device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20220123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |