CN104681952A - Band-notched ultra wideband antenna - Google Patents
Band-notched ultra wideband antenna Download PDFInfo
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- CN104681952A CN104681952A CN201310617555.6A CN201310617555A CN104681952A CN 104681952 A CN104681952 A CN 104681952A CN 201310617555 A CN201310617555 A CN 201310617555A CN 104681952 A CN104681952 A CN 104681952A
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- medium substrate
- radiating element
- wideband antenna
- band
- antenna
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Abstract
The invention discloses a band-notched ultra wideband antenna, which consists of a medium substrate (1), a radiation unit (2) and a signal feed band wire (3); an SIR-DGS structure slot (4) is formed in the radiation unit. The radiation unit and the signal feed band wire are printed on the upper surface of the medium substrate, the radiation unit is positioned in the middle of the medium substrate; a feeder is led to the radiation unit from the edge of the medium substrate and is connected with the medium substrate; a grounding surface is printed at the lower surface of the medium substrate. The band-notched ultra wideband antenna is compact in structure and small in size, band-notched frequency can be adjusted by changing the size and position of the SIR-DGS structure slot, and the problem of same frequency interference of an ultra wideband communication system is solved.
Description
Technical field
The present invention designs a kind of antenna, is specifically related to a kind of trap characteristic ultra-wideband antenna.
Background technology
Since FCC, (Federal Communications Commission) allows 3.1---and since the commercialization of 10.6GHz frequency range, super-broadband tech obtains at academic and commercial field and broadly pays close attention to.Do not need to hole and be easy to integrated coplanar waveguide structure to make rapid progress, and this structure can be made by camera technique, and have good polarization characteristic, therefore this technology has been applied in the design of ultra-wideband antenna and the design of relevant microwave circuit components and parts.
But the frequency band shared by current ultra-wideband communications and WLAN (wireless local area network) have shared part, therefore need the antenna designed to reduce and bring interference to it, the ultra-wideband antenna that design has trap characteristic becomes the focus studied at present.If do not have suitable design to come harmonic inhabitation resonance and parasitic emission, antenna produces electromagnetic interference by neighbouring equipment, jeopardizes the normal work of system itself and contiguous system, particularly causes interference to the LAN system used at present.Add the method that filter is the solution problems the most often used, but often cause antenna and microwave circuit not to mate, even reduce the overall efficiency of system, therefore the ultra-wideband antenna designed with trap characteristic is one of important method of head it off, solves the problem of the Structure and energy more complicated of current antenna simultaneously.
Summary of the invention
The object of this invention is to provide a kind of structure simple, compact, the trap characteristic ultra-wideband antenna of broader bandwidth, this antenna can be used in the military equipments such as electronics investigation, electronic countermeasures and civil equipment, reduces WLAN (wireless local area network) WLAN(5.15 ~ 5.825GHz) interference of band communication.
Technical solutions according to the invention are:
Trap characteristic ultra-wideband antenna, it is characterized in that: comprise medium substrate, radiating element, signal feed band line, ground plane, described radiating element, signal feed band line are printed on medium substrate upper surface, and described radiating element is positioned at the middle part of medium substrate, feeder line is guided radiating element into from medium substrate edge and is connected with it, and described ground plane is printed on medium substrate lower surface.
Described trap characteristic ultra-wideband antenna, is characterized in that: described radiating element is circular configuration.
Described trap characteristic ultra-wideband antenna, is characterized in that: described radiating element is opened SIR-DGS structure grooves.
Described trap characteristic ultra-wideband antenna, is characterized in that: described ground plane is rectangular configuration.
Beneficial effect:
(1) inventive antenna is simple and compact for structure, compact, easy to process, and cost is low.
(2) of the present inventionly on radiating element, open SIR-DGS structure grooves, by the adjusted size trap frequency of regulating tank, realize ultra-wideband communications and to disturb communication system mutually compatible, communication for coordination.
(3) the present invention's etching groove on radiating element, eliminates the design of filter, reduces the complexity of design cost and system, improves the overall performance of system simultaneously, also reduce overall volume.
(4) the present invention has good impedance bandwidth and trap characteristic, simple and compact for structure, therefore considerably increases its scope of application.
(5) antenna involved in the present invention can improve according to the actual requirements voluntarily, arranges the size of radiating element, distance, groove size etc. between co-planar waveguide ground plane and radiating element, improves the performance of antenna.
(6) antenna involved in the present invention has good broadband character and good omnidirectional radiation characteristic, and the trap characteristic of this product can be avoided WLAN (wireless local area network) WLAN(5.15 ~ 5.825GHz) communicate and cause interference.
Accompanying drawing explanation
Fig. 1 is radiating element of the present invention and feeder line schematic diagram;
Fig. 2 is ground plane schematic diagram of the present invention;
Fig. 3 is the stationary wave characteristic curve of embodiment 1.
Embodiment
Embodiment 1:
As depicted in figs. 1 and 2, trap characteristic ultra-wideband antenna, its composition comprises: medium substrate (1), radiating element (2), and SIR-DGS structure grooves (4) opened by signal feed band line (3) on radiating element.Described radiating element, signal feed band line are printed on medium substrate upper surface, and described radiating element is positioned at the middle part of medium substrate, and feeder line is guided radiating element into from medium substrate edge and is connected with it, and described ground plane is printed on medium substrate lower surface.
Described medium substrate is polytetrafluoroethylene material, thickness 1.6mm, and relative dielectric constant is 4.4.
Described coplanar wave guide feedback band line features impedance 50 Ω, live width 3.3mm.
Fig. 2 is ground plane schematic diagram of the present invention.
Fig. 3 is the stationary wave characteristic curve of embodiment 1, and as shown in Figure 3, antenna is at WLAN (wireless local area network) WLAN(5.15 ~ 5.825GHz) trap wave point is set, thus make the ultra-wideband communication devices of antenna can with to disturb communication system mutually compatible, communication for coordination.
Claims (4)
1. trap characteristic ultra-wideband antenna, it is characterized in that: comprise medium substrate, radiating element, signal feed band line, ground plane, described radiating element, signal feed band line are printed on medium substrate upper surface, and described radiating element is positioned at the middle part of medium substrate, feeder line is guided radiating element into from medium substrate edge and is connected with it, and described ground plane is printed on medium substrate lower surface.
2. trap characteristic ultra-wideband antenna according to claim 1, is characterized in that: described radiating element is circular configuration.
3. trap characteristic ultra-wideband antenna according to claim 1, is characterized in that: described radiating element is opened SIR-DGS structure grooves.
4. trap characteristic ultra-wideband antenna according to claim 1, is characterized in that: described ground plane is rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617555.6A CN104681952A (en) | 2013-11-27 | 2013-11-27 | Band-notched ultra wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617555.6A CN104681952A (en) | 2013-11-27 | 2013-11-27 | Band-notched ultra wideband antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681952A true CN104681952A (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617555.6A Pending CN104681952A (en) | 2013-11-27 | 2013-11-27 | Band-notched ultra wideband antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104681952A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161849A (en) * | 2015-07-13 | 2015-12-16 | 深圳市保千里电子有限公司 | Microwave ultra-wideband antenna |
| CN106876912A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of ultra-wideband antenna based on U-type groove and double J-type grooves |
| CN106876888A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of ultra-wideband antenna based on U-type groove and J-type groove |
| CN107834190A (en) * | 2017-12-04 | 2018-03-23 | 河北工业大学 | A kind of small capacity double trap UWB antenna |
| CN113764862A (en) * | 2021-09-03 | 2021-12-07 | 北京有竹居网络技术有限公司 | Antenna and wearable device |
-
2013
- 2013-11-27 CN CN201310617555.6A patent/CN104681952A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161849A (en) * | 2015-07-13 | 2015-12-16 | 深圳市保千里电子有限公司 | Microwave ultra-wideband antenna |
| CN105161849B (en) * | 2015-07-13 | 2020-04-28 | 深圳市保千里电子有限公司 | Microwave ultra-wideband antenna |
| CN106876912A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of ultra-wideband antenna based on U-type groove and double J-type grooves |
| CN106876888A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of ultra-wideband antenna based on U-type groove and J-type groove |
| CN107834190A (en) * | 2017-12-04 | 2018-03-23 | 河北工业大学 | A kind of small capacity double trap UWB antenna |
| CN107834190B (en) * | 2017-12-04 | 2024-02-27 | 河北工业大学 | Small double-notch ultra-wideband antenna |
| CN113764862A (en) * | 2021-09-03 | 2021-12-07 | 北京有竹居网络技术有限公司 | Antenna and wearable device |
| CN113764862B (en) * | 2021-09-03 | 2024-03-01 | 北京有竹居网络技术有限公司 | Antenna and wearable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |