CN104681947A - Ultra wide band antenna with trapped wave features - Google Patents
Ultra wide band antenna with trapped wave features Download PDFInfo
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- CN104681947A CN104681947A CN201310617507.7A CN201310617507A CN104681947A CN 104681947 A CN104681947 A CN 104681947A CN 201310617507 A CN201310617507 A CN 201310617507A CN 104681947 A CN104681947 A CN 104681947A
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- radiating element
- planar waveguide
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- wide band
- radiation unit
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Abstract
The invention discloses an ultra wide band antenna with trapped wave features. The ultra wide band antenna comprises a medium base plate (1), a radiation unit (2), a coplane waveguide signal feeding belt line (3) and a coplane waveguide grounding surface (4), wherein a U-shaped groove (5) is formed in the signal feeding belt line, and a fractal triangular structure (6) is etched on the radiation unit. The radiation unit, the coplane waveguide signal feeding belt line and the coplane waveguide grounding surface are printed on the upper surface of the medium base plate, the radiation unit is positioned in the middle part of the medium base plate, the coplane waveguide signal feeding belt line is led to the radiation unit from the edge of the medium base plate and is connected with the radiation unit, the coplane waveguide grounding surface consists of two approximately trapezoidal metals, the two approximately trapezoidal metals are respectively and fixedly arranged at the two sides of the coplane waveguide signal feeding belt line, and gaps are formed between the metals and the belt line. The ultra wide band antenna has the advantages that the structure is compact, the dimension is small, the structure is ingenious, the trapped wave frequency can be regulated through changing the dimension and the position of the U-shaped groove, and the problem of same-frequency interference of an ultra wide band communication system is solved.
Description
Technical field
The present invention designs a kind of antenna, is specifically related to a kind of ultra-wideband antenna with trap characteristic.
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 WLAN (wireless local area network), the ultra-wideband antenna designed with 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 ultra-wideband antenna with trap characteristic 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:
With the ultra-wideband antenna of trap characteristic, it is characterized in that: comprise medium substrate, radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane, described radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane are printed on medium substrate upper surface, described radiating element is positioned at the middle part of medium substrate, coplanar waveguide feeder line is guided radiating element into from medium substrate edge and is connected with it, and two panels co-planar waveguide ground plane is individually fixed in coplanar wave guide feedback band line both sides and has gap with band line.
The described ultra-wideband antenna with trap characteristic, is characterized in that: described co-planar waveguide ground plane is made up of two panels class trapezium structure metal.
The described ultra-wideband antenna with trap characteristic, is characterized in that: described radiating element is del structure, radiating element etches fractal triangular structure.
The described ultra-wideband antenna with trap characteristic, is characterized in that: U-shaped groove opened by described coplanar wave guide feedback band line.
Beneficial effect:
(1) inventive antenna single layer printed circuit plate technique can realize, simple and compact for structure, compact, and easy to process, cost is low.
(2) of the present inventionly on coplanar wave guide feedback band line, etch U-lag, by the adjusted size trap frequency of regulating tank, realize ultra-wideband communications and to disturb communication system mutually compatible, communication for coordination.
(3) antenna structure of the present invention is simple, technical maturity, and automaticity is high, is convenient to batch production, and low production cost.
(4) antenna designed by the present invention adopts co-planar waveguide, is printed on medium substrate the same face, is conducive to microwave integrated circuit integrated.
(5) the present invention's etching groove on coplanar wave guide feedback band line, eliminates the design of filter, reduces the complexity of design cost and system, improves the overall performance of system simultaneously, also reduce overall volume.
(6) the present invention has good impedance bandwidth and trap characteristic, simple and compact for structure, therefore considerably increases its scope of application.
(7) 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.
(8) 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 vertical view of the present invention;
Fig. 2 is end view of the present invention;
Fig. 3 is front view of the present invention;
Fig. 4 is the stationary wave characteristic curve of embodiment 1.
Embodiment
Embodiment 1:
As shown in Figure 1, with the ultra-wideband antenna of trap characteristic, its composition comprises: medium substrate (1), radiating element (2), co-planar waveguide signal feed band line (3), co-planar waveguide ground plane (4), signal feed band line is opened U-shaped groove (5), and radiating element etches fractal triangular structure (6).Described radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane are printed on medium substrate upper surface; Described radiating element is positioned at the middle part of medium substrate, and coplanar wave guide feedback band line is guided radiating element into from medium substrate edge and is connected with it; Co-planar waveguide ground plane is made up of the trapezoidal metal of two panels class, is individually fixed in coplanar wave guide feedback band line both sides and has gap with band line.
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 3.8mm.
Fig. 4 is the stationary wave characteristic curve of embodiment 1, and as shown in Figure 4, 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. with the ultra-wideband antenna of trap characteristic, it is characterized in that: comprise medium substrate, radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane, described radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane are printed on medium substrate upper surface, described radiating element is positioned at the middle part of medium substrate, coplanar waveguide feeder line is guided radiating element into from medium substrate edge and is connected with it, and two panels co-planar waveguide ground plane is individually fixed in coplanar wave guide feedback band line both sides and has gap with band line.
2. the ultra-wideband antenna with trap characteristic according to claim 1, is characterized in that: described co-planar waveguide ground plane is made up of two panels class trapezium structure metal.
3. the ultra-wideband antenna with trap characteristic according to claim 1, is characterized in that: described radiating element is del structure, radiating element etches fractal triangular structure.
4. the ultra-wideband antenna with trap characteristic according to claim 1, is characterized in that: U-shaped groove opened by described coplanar wave guide feedback band line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617507.7A CN104681947A (en) | 2013-11-27 | 2013-11-27 | Ultra wide band antenna with trapped wave features |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617507.7A CN104681947A (en) | 2013-11-27 | 2013-11-27 | Ultra wide band antenna with trapped wave features |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681947A true CN104681947A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617507.7A Pending CN104681947A (en) | 2013-11-27 | 2013-11-27 | Ultra wide band antenna with trapped wave features |
Country Status (1)
| Country | Link |
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| CN (1) | CN104681947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767460A (en) * | 2018-05-23 | 2018-11-06 | 辽宁工程技术大学 | A kind of ultra-wideband antenna with three trap characteristics |
-
2013
- 2013-11-27 CN CN201310617507.7A patent/CN104681947A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767460A (en) * | 2018-05-23 | 2018-11-06 | 辽宁工程技术大学 | A kind of ultra-wideband antenna with three trap characteristics |
| CN108767460B (en) * | 2018-05-23 | 2024-01-02 | 辽宁工程技术大学 | Ultra-wideband antenna with triple notch characteristics |
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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 |