CN203180049U - Ultra-wideband antenna - Google Patents
Ultra-wideband antenna Download PDFInfo
- Publication number
- CN203180049U CN203180049U CN 201320097398 CN201320097398U CN203180049U CN 203180049 U CN203180049 U CN 203180049U CN 201320097398 CN201320097398 CN 201320097398 CN 201320097398 U CN201320097398 U CN 201320097398U CN 203180049 U CN203180049 U CN 203180049U
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- CN
- China
- Prior art keywords
- circular cone
- ultra
- floor
- round platform
- wideband antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model mainly relates to an ultra-wideband antenna which comprises the following components: a radiating member, a feeding-in part and a grounding part. The grounding part is flooring. The radiating member is equipped above the flooring and is composed of two parts which are vertically connected and coaxial. An upper part of the radiating member is a frustum or a second cone, and the lower part is a first cone with a downward summit. The bottom surface of the first cone is connected with the bottom of the frustum or the bottom surface of the second cone. The feeding-in part is a coaxial connector which is equipped below the flooring. An electromagnetic wave signal is fed into the radiating member through the flooring. A gap is provided between the coaxial connector and the radiating member. The coaxial connector is connected with the summit of the first cone through the gap. According to the ultra-wideband antenna provided by the utility model, the operation frequency range is 500MHz-700MHz and comprises the operation frequency range of communication systems such as GPS, 2G, 3G/4G, wifi and Beidou. The ultra-wideband antenna is suitable for large-range popularization.
Description
Technical field
The utility model relates to a kind of antenna, specifically is a kind of ultra-wideband communications antenna.
Background technology
(Ultra-Wide Band, UWB) operating frequency of antenna is extremely wide, on the basis that guarantees day live width impedance bandwidth and high transmit power, realizes the miniaturization of antenna, is the major issue that the ultra-wideband antenna design faces for ultra broadband.UWB has characteristics such as high data transmission rate, low power consumption and strong anti-interference ability, receives much attention so be used for the super Wide antenna of ultra-wideband devices.
The working frequency range of ultra-wideband antenna is 500MHz-7000MH frequency range, and this frequency has comprised communication systems such as GPS, the Big Dipper, 2G, 3G/4G, wifi.
Summary of the invention
Goal of the invention
The purpose of this utility model is to provide a kind of antenna miniaturization more, ultra-wideband antenna that makes system further be optimized of making.
Technical scheme
A kind of ultra-wideband antenna, comprise radiant body, feeding portion and grounding parts, it is characterized in that: grounding parts is the floor, radiant body is arranged at the top, floor, be used for the transmitting-receiving electromagnetic wave signal, by connecting up and down and coaxial two parts constitute, top is round platform or second circular cone, the bottom is summit first circular cone down, the bottom surface of first circular cone and round platform go to the bottom or the bottom surface of second circular cone links to each other; Feeding portion is the coaxial connector that is arranged on the below, floor, to radiant body feed-in electromagnetic wave signal, is provided with slit between coaxial connector and the radiant body by the floor, and coaxial connector links to each other by the summit of slit with first circular cone.
The outer edge of described first circular cone, round platform and second circular cone is circle and smooth surface.
Radiant body is vertical with the floor.
The summit of first circular cone and round platform all are in the core on floor.
The summit of the summit of first circular cone and second circular cone all is in the core on floor.
The bottom radius of round platform is identical with the bottom radius of first circular cone, and the top radius of round platform is less than the bottom radius of round platform.
The bottom radius of second circular cone is identical with the bottom radius of first circular cone.
Advantage and effect
Advantage of the present utility model and beneficial effect are as follows:
1, volume is little, in light weight;
2, change in gain is smooth;
3, standing wave changes smooth;
4, omnidirectional's performance is good;
5, mechanical strength height;
6, maintenance maintenance is convenient;
7, the cooperating adaptability with the existing communication equipment is strong.
Description of drawings
Fig. 1 is the utility model end view;
Fig. 2 is Fig. 1 vertical view;
Fig. 3 is embodiment 1 structural representation;
Fig. 4 is embodiment 2 structural representations;
Fig. 5 is embodiment 3 structural representations;
Fig. 6 is the utility model emulation return loss figure;
Fig. 7 is the utility model actual measurement standing wave pattern;
Fig. 8 is the utility model actual measurement directional diagram.
Description of reference numerals:
1, floor, 2, radiant body, 3, coaxial connector, 4, the slit, 5, metallic object.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is end view of the present utility model, and Fig. 2 is the vertical view of Fig. 1, as shown in Fig. 1 and Fig. 2, the utility model proposes a kind of ultra-wideband antenna, be arranged on the floor 1, comprise radiant body 2, feeding portion and grounding parts, it is characterized in that: grounding parts is floor 1, and floor 1 is metal material; Radiant body 2 is arranged at 1 top, floor, be used for the transmitting-receiving electromagnetic wave signal, by connecting up and down and coaxial two parts constitute, top is up-small and down-big round platform or second circular cone, the bottom is summit first circular cone down, the bottom surface of first circular cone and round platform go to the bottom or the bottom surface of second circular cone links to each other; Feeding portion is the coaxial connector 3 that is arranged on 1 below, floor, to radiant body 2 feed-in electromagnetic wave signals, is provided with slit 4 between coaxial connector 3 and the radiant body 2 by floor 1, and coaxial connector 3 links to each other with the summit of first circular cone by slit 4.
The outer edge of described first circular cone, round platform and second circular cone is circular, and smooth treatment is carried out in two-part junction up and down, and namely connecting smooth surface does not have corner angle.
The summit of first circular cone and round platform all are in the core on floor.
The summit of the summit of first circular cone and second circular cone all is in the core on floor.
The bottom radius of round platform is identical with the bottom radius of first circular cone, and the top radius of round platform is less than the bottom radius of round platform.
The bottom radius of second circular cone is identical with the bottom radius of first circular cone; This moment, two circular cone sizes were identical, highly equal.
Ultra-wideband antenna described in the utility model also not only works in 500MHz-7000MHz frequency range.The radius of the top and the bottom by changing first circular cone and round platform and the height of first circular cone and round platform are adjusted the bandwidth of antenna.
Ultra-wideband antenna is arranged on the floor 1, and the bottom of radiant body 2 is first circular cone, is used for connecting coaxial connector 3 and feed-in electromagnetic wave signal, and the top of radiant body 2 is a round platform, and round platform is connected with first circular cone.
In the present embodiment, as shown in Figure 3, the height on the first cone distance floor of ultra-wideband antenna is 4 millimeters, and the total height of first tapered segment and round platform part is 150 millimeters; The radius at the first conical tip place is 1.5 millimeters, and the bottom radius of first circular cone is 33 millimeters; The bottom radius of round platform is 33 millimeters, and the top radius of round platform is 27 millimeters; The radius on floor is 70 millimeters.
According to embodiment 1 described structure, can also in the middle of radiant body, insert a metallic object 5, fixed, make antenna increase mechanically stable, as shown in Figure 4.
In the present embodiment, the round platform on radiant body top is changed into the conical structure identical with first circular cone, 75 Ω are changed in the characteristic impedance of this ultra-wideband antenna so, as shown in Figure 5.
Adopt the comparison of circular cone, cylinder, round platform three performance about radiator structure in the utility model:
With CST microwave studio (CST microwave studio) antenna of this structure is carried out simulation calculation, obtain the return loss of three kinds of antenna structures.
Above-mentioned CST is Computer Simulation Technology(Computer Simulation science and technology) abbreviation, it is the name of a company, CST microwave studio is an Electromagnetic Simulation software of the said firm, all be that Chinese also all is the CST microwave studio with abbreviation when mentioning this software.
By using the simulation calculation of this software, the antenna characteristics impedance is 75 Ω when second portion is circular cone, rather than 50 general Ω.
When second portion was cylinder, the antenna characteristics impedance was 50 Ω, but the standing wave bandwidth can only reach about 1:7.
When second portion was round platform, the antenna characteristics impedance was 50 Ω, but the standing wave bandwidth can reach 1:14, by to the actual test of directional diagram and standing wave as can be seen, theoretical calculate with actual test coincide fine.
From emulation and actual test result as can be seen, the super-wide-band flat antenna of this structure meets the requirement of ultra-wideband antenna under the situation of above-mentioned physical dimension parameter, namely its return loss in 500MHz-7000MH frequency range less than-9dB.Emulation, measured data are seen Fig. 6, Fig. 7 and Fig. 8.
Claims (7)
1. ultra-wideband antenna, comprise radiant body (2), feeding portion and grounding parts, it is characterized in that: grounding parts is floor (1), radiant body (2) is arranged at top, floor (1), be used for the transmitting-receiving electromagnetic wave signal, by connecting up and down and coaxial two parts constitute, top is round platform or second circular cone, the bottom is summit first circular cone down, the bottom surface of first circular cone and round platform go to the bottom or the bottom surface of second circular cone links to each other; Feeding portion is for being arranged on the coaxial connector (3) below the floor (1), by floor (1) to radiant body (2) feed-in electromagnetic wave signal, be provided with slit (4) between coaxial connector (3) and the radiant body (2), coaxial connector (3) links to each other with the summit of first circular cone by slit (4).
2. ultra-wideband antenna according to claim 1, it is characterized in that: the outer edge of described first circular cone, round platform and second circular cone is circle and smooth surface.
3. ultra-wideband antenna according to claim 1, it is characterized in that: radiant body (2) is vertical with floor (1).
4. ultra-wideband antenna according to claim 1, it is characterized in that: the summit of first circular cone and round platform all are in the core on floor.
5. ultra-wideband antenna according to claim 1, it is characterized in that: the summit of the summit of first circular cone and second circular cone all is in the core on floor.
6. ultra-wideband antenna according to claim 1, it is characterized in that: the bottom radius of round platform is identical with the bottom radius of first circular cone, and the top radius of round platform is less than the bottom radius of round platform.
7. ultra-wideband antenna according to claim 1, it is characterized in that: the bottom radius of second circular cone is identical with the bottom radius of first circular cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320097398 CN203180049U (en) | 2013-03-04 | 2013-03-04 | Ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320097398 CN203180049U (en) | 2013-03-04 | 2013-03-04 | Ultra-wideband antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180049U true CN203180049U (en) | 2013-09-04 |
Family
ID=49076709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320097398 Expired - Fee Related CN203180049U (en) | 2013-03-04 | 2013-03-04 | Ultra-wideband antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117451A (en) * | 2013-03-04 | 2013-05-22 | 金明涛 | Ultra wide band antenna |
| CN104538736A (en) * | 2014-12-18 | 2015-04-22 | 佛山市粤海信通讯有限公司 | Novel ceiling antenna |
-
2013
- 2013-03-04 CN CN 201320097398 patent/CN203180049U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117451A (en) * | 2013-03-04 | 2013-05-22 | 金明涛 | Ultra wide band antenna |
| CN104538736A (en) * | 2014-12-18 | 2015-04-22 | 佛山市粤海信通讯有限公司 | Novel ceiling antenna |
| CN104538736B (en) * | 2014-12-18 | 2017-09-26 | 佛山市粤海信通讯有限公司 | A kind of novel ceiling 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: 20130904 Termination date: 20180304 |