CN104681951A - Coplanar waveguide ultra-broadband antenna with notched characteristic - Google Patents
Coplanar waveguide ultra-broadband antenna with notched characteristic Download PDFInfo
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- CN104681951A CN104681951A CN201310617552.2A CN201310617552A CN104681951A CN 104681951 A CN104681951 A CN 104681951A CN 201310617552 A CN201310617552 A CN 201310617552A CN 104681951 A CN104681951 A CN 104681951A
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- coplanar waveguide
- ground plane
- coplanar
- planar waveguide
- radiating element
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Abstract
The invention discloses a coplanar waveguide ultra-broadband antenna with the notched characteristic. In composition, the coplanar waveguide ultra-broadband antenna comprises a dielectric substrate (1), a radiation unit (2), a coplanar waveguide signal feeding strip line (3) and a coplanar waveguide ground plane (4); an open-loop resonator structure (5) is embedded on the coplanar waveguide signal feeding strip line; the radiation unit, the coplanar waveguide signal feeding strip line and the coplanar waveguide ground plane are printed on the upper surface of the dielectric substrate; the radiation unit is positioned at the middle part of the dielectric substrate; the coplanar waveguide signal feeding strip line is led to the radiation unit from the edge of the dielectric substrate and is connected with the radiation unit; the coplanar waveguide ground plane is formed by two pieces of trapezoidal-like metal; the two pieces of trapezoidal-like metal are respectively and fixedly arranged at both sides of the coplanar waveguide signal feeding strip line and gaps are reserved between the two pieces of trapezoidal-like metal and the strip line; the open-loop resonator structure is positioned on the coplanar waveguide signal feeding strip line. The coplanar waveguide ultra-broadband antenna has a compact structure and a small size; by changing the size and the position of the open-loop resonator structure, notch frequency can be regulated; the problem of same frequency interference of an ultra-broadband communication system is solved.
Description
Technical field
The present invention designs a kind of antenna, is specifically related to a kind of coplanar waveguide ultra wide band antenna with trap characteristic.
Background technology
Since FCC, (FederalCommunicationsCommission) 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 satellite C-band, 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 design has the coplanar waveguide ultra wide band antenna of 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 satellite C-band (3.7 ~ 4.2GHz) and WLAN (wireless local area network) WLAN(5.15 ~ 5.825GHz) interference of band communication.
Technical solutions according to the invention are:
There is the coplanar waveguide ultra wide band 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 coplanar waveguide ultra wide band antenna with trap characteristic, is characterized in that: described signal feed band line embeds open-loop resonator structure.
The described coplanar waveguide ultra wide band 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 coplanar waveguide ultra wide band antenna with trap characteristic, is characterized in that: described radiating element is the rectangular configuration removing two angles.
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 signal feed band line, embed open-loop resonator structure, by regulating resonator dimensions to adjust two trap frequencies, realizing ultra-wideband communications and disturbing the compatible communication for coordination of communication system mutually.
(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 has good impedance bandwidth and trap characteristic, simple and compact for structure, therefore considerably increases its scope of application.
(6) 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.
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, have the coplanar waveguide ultra wide band 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), co-planar waveguide signal feed band line embeds open-loop resonator structure (5).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, is individually fixed in coplanar wave guide feedback band line both sides and has gap with band line; Open-loop resonator structure is on co-planar waveguide signal feed band line.
Described medium substrate is polytetrafluoroethylene material, thickness 1.6mm, and relative dielectric constant is 4.4.
Described co-planar waveguide ground plane is made up of two panels trapezium structure.
Described coplanar wave guide feedback band line features impedance 50 Ω, live width 3.8mm.
Described radiating element be remove two angles rectangular configuration and slot.
Described co-planar waveguide signal feed band line embeds open-loop resonator structure.
Fig. 4 is the stationary wave characteristic curve of embodiment 1, and as shown in Figure 4, antenna respectively at satellite C-band and wireless lan (wlan) band setting two trap wave points, thus makes the ultra-wideband communication devices of antenna can with to disturb communication system mutually compatible, communication for coordination.
Claims (4)
1. one kind has the coplanar waveguide ultra wide band 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 coplanar waveguide ultra wide band antenna with trap characteristic according to claim 1, is characterized in that: described signal feed band line embeds open-loop resonator structure.
3. the coplanar waveguide ultra wide band 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.
4. the coplanar waveguide ultra wide band antenna with trap characteristic according to claim 1, is characterized in that: described radiating element is the rectangular configuration removing two angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617552.2A CN104681951A (en) | 2013-11-27 | 2013-11-27 | Coplanar waveguide ultra-broadband antenna with notched characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617552.2A CN104681951A (en) | 2013-11-27 | 2013-11-27 | Coplanar waveguide ultra-broadband antenna with notched characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681951A true CN104681951A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617552.2A Pending CN104681951A (en) | 2013-11-27 | 2013-11-27 | Coplanar waveguide ultra-broadband antenna with notched characteristic |
Country Status (1)
| Country | Link |
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| CN (1) | CN104681951A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876918A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of defect ground structure antenna of new V-type feeder line resonance |
| CN107425263A (en) * | 2017-06-15 | 2017-12-01 | 上海交通大学 | Graphene super wide band plane single pole sub antenna |
-
2013
- 2013-11-27 CN CN201310617552.2A patent/CN104681951A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876918A (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨黑石科技有限公司 | A kind of defect ground structure antenna of new V-type feeder line resonance |
| CN107425263A (en) * | 2017-06-15 | 2017-12-01 | 上海交通大学 | Graphene super wide band plane single pole sub antenna |
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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 |