CN204905416U - PCB big dipper antenna - Google Patents
PCB big dipper antenna Download PDFInfo
- Publication number
- CN204905416U CN204905416U CN201520554471.7U CN201520554471U CN204905416U CN 204905416 U CN204905416 U CN 204905416U CN 201520554471 U CN201520554471 U CN 201520554471U CN 204905416 U CN204905416 U CN 204905416U
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Abstract
The utility model discloses a PCB big dipper antenna, including antenna element, dielectric plate, LNA and shield cover, the antenna element is located the dielectric plate upper surface, and LNA is located the dielectric plate below, and the shield cover is located the LNA below, the dielectric plate is the FR4 material, the LNA front end is an amplifier circuit, and the centre is a wave filter, and the rear end is an amplifier circuit and a pi type attenuator, antenna element and LNA present a little for singly present a little, double -fed dot OR no. 4 presents a little. The utility model discloses simple structure, reasonable in design, low cost with antenna and integrated two surfaces to a dielectric plate of amplifier circuit, has simplified the structure, the large -scale production of being convenient for.
Description
Technical field
The utility model relates to technical field of satellite navigation, specifically a kind of PCB Beidou antenna.
Background technology
Beidou satellite navigation system is global positioning satellite and the communication system of China's independent research, and the GPS of the U.S., Muscovite Ge Luonasi, European Union Galileo system and be called global four large satellite navigation system.At present, these 4 systems are confirmed as GPS (Global Position System) core supplier by the United Nations together.It changes the situation that China lacks high accuracy, in real time positioning means for a long time, break the U.S. and the Russia monopoly position in this field, can be China land, ocean, all kinds of military and civilians that are aerial and space provide multiple business guarantee, especially the modernization of raising China's national defense is had great significance.
China's Beidou satellite navigation system is the GPS (Global Position System) of China's independent research, autonomous operation, can be widely used in the every field of economic society, is the important space information infrastructure that country is building.This system is applied at numerous areas such as mapping, fishery, communications and transportation, telecommunications, water conservancy, forest fire protection, the mitigation disaster relief and national security, creates significant economic benefit and social benefit.
Since dipper system is towards since civilian, there is the hand-hold type Big Dipper terminal of the multiple frequency range of multiple compatibility; And the Big Dipper terminal that a compatible Big Dipper generation is received and dispatched, Beidou II receive frequency comprises such five frequencies of GPS frequency, because compatible frequency causes antenna size larger more, or the difficulty that minification increases making the spacing of cracking of antenna element less in production technology, hinders the broader applications of multifrequency dipper system.Current Big Dipper application antenna uses two pieces of reception antenna superpositions mostly respectively, accepts the Big Dipper signal of different frequency range, causes and produce inconvenience, be unfavorable for the problem of large-scale production.
Utility model content
The purpose of this utility model is to provide a kind of PCB Beidou antenna, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of PCB Beidou antenna, comprises antenna element, dielectric-slab, LNA and radome; Described antenna element is positioned at dielectric-slab upper surface, and LNA is positioned at below dielectric-slab, and radome is positioned at below LNA.
As further program of the utility model: described dielectric-slab is FR4 material.
As the utility model further scheme: described LNA front end is an amplifying circuit, centre is a filter, and rear end is an amplifying circuit and a π type attenuator.
As the utility model further scheme: the feedback point of described antenna element and LNA is single feed point, double-fed point or four presents point.
Compared with prior art, the beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, with low cost, antenna and amplifying circuit is integrated into two surfaces of a dielectric-slab, simplifies the structure, be convenient to large-scale production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is vertical view of the present utility model.
Fig. 4 is left view of the present utility model.
Fig. 5 is rearview of the present utility model.
In figure: 1-antenna element, 2-dielectric-slab, 3-LNA, 4-radome.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only 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.
Refer to Fig. 1 ~ 5, a kind of PCB Beidou antenna, comprise antenna element 1, dielectric-slab 2, LNA3 and radome 4; Described antenna element 1 is positioned at dielectric-slab 2 upper surface, and LNA3 is positioned at below dielectric-slab 2, and radome 4 is positioned at below LNA3.
Further, dielectric-slab 2 described in the utility model is FR4 material.
Further, LNA3 front end described in the utility model is an amplifying circuit, and centre is a filter, and rear end is an amplifying circuit and a π type attenuator.
Further, antenna element 1 described in the utility model comprises with the feedback point of LNA3 and is not limited only to single feed point, also can be double-fed point and 4 feedback points, can increase and improve antenna phase center stability.
Antenna Design in the utility model coordinates loading low noise amplifier, the high-quality signal of stable output.Meet wider band designs demand, comprise and be not limited only to GPS, the Big Dipper, Glonass and Galileo.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (4)
1. a PCB Beidou antenna, is characterized in that: comprise antenna element (1), dielectric-slab (2), LNA (3) and radome (4); Described antenna element (1) is positioned at dielectric-slab (2) upper surface, and LNA (3) is positioned at dielectric-slab (2) below, and radome (4) is positioned at LNA (3) below.
2. PCB Beidou antenna according to claim 1, is characterized in that: described dielectric-slab (2) is FR4 material.
3. PCB Beidou antenna according to claim 1, is characterized in that: described LNA (3) front end is an amplifying circuit, and centre is a filter, and rear end is an amplifying circuit and a π type attenuator.
4. PCB Beidou antenna according to claim 1, is characterized in that: described antenna element (1) and the feedback point of LNA (3) are single feed point, double-fed point or four presents point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520554471.7U CN204905416U (en) | 2015-07-28 | 2015-07-28 | PCB big dipper antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520554471.7U CN204905416U (en) | 2015-07-28 | 2015-07-28 | PCB big dipper antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204905416U true CN204905416U (en) | 2015-12-23 |
Family
ID=54927571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520554471.7U Expired - Fee Related CN204905416U (en) | 2015-07-28 | 2015-07-28 | PCB big dipper antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204905416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098320A (en) * | 2015-07-28 | 2015-11-25 | 陕西永诺信息科技有限公司 | Printed circuit board (PCB)Beidou antenna |
-
2015
- 2015-07-28 CN CN201520554471.7U patent/CN204905416U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098320A (en) * | 2015-07-28 | 2015-11-25 | 陕西永诺信息科技有限公司 | Printed circuit board (PCB)Beidou antenna |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20200728 |