CN203056091U - A novel ultra-wideband antenna with a wave trapping characteristic - Google Patents
A novel ultra-wideband antenna with a wave trapping characteristic Download PDFInfo
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- CN203056091U CN203056091U CN 201220656786 CN201220656786U CN203056091U CN 203056091 U CN203056091 U CN 203056091U CN 201220656786 CN201220656786 CN 201220656786 CN 201220656786 U CN201220656786 U CN 201220656786U CN 203056091 U CN203056091 U CN 203056091U
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- wideband antenna
- planar waveguide
- ground plane
- coplanar waveguide
- radiating element
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Abstract
The utility model discloses a novel ultra-wideband antenna with a wave trapping characteristic. The novel ultra-wideband antenna is composed of a medium substrate (1), a radiation unit (2), a coplanar waveguide ground plane (3), a coplanar waveguide signal feed strip line (4), an X-shaped groove (5) formed on the radiation unit (2), and U-shaped grooves (6) formed on the coplanar waveguide ground plane (3). The radiation unit, the coplanar waveguide signal feed strip line, the coplanar waveguide ground plane are printed on the upper surface of the medium substrate. The coplanar waveguide signal feed strip line is led from the edge of the medium substrate to the radiation unit and is connected with the radiation unit. The coplanar waveguide ground plane is formed by two pieces of trapezoid-like metal. The two pieces of trapezoid-like metal are respectively fixed at the both sides of the coplanar waveguide signal feed strip line in a manner that gaps are reserved between the two pieces of trapezoid-like metal and the coplanar waveguide signal feed strip line. The novel ultra-wideband antenna is compact in structure and small in size; the wave trapping frequency can be adjusted by virtue of changing the sizes and positions of the X-shaped groove and the U-shaped grooves; and the problem of same frequency interferences of an ultra-wideband communication system is solved.
Description
Technical field
The utility model designs a kind of antenna, is specifically related to a kind of novel pair of trap characteristic ultra-wideband antenna.
Background technology
Since FCC (Federal Communications Commission) allows 3.1---since the commercialization of 10.6GHz frequency range, super-broadband tech has obtained paying close attention to more widely at academic and commercial field.Do not need to hole and be easy to integrated coplanar waveguide structure and make rapid progress, and this structure can be made by camera technique, and polarization characteristic is preferably arranged, so in the design of the design that has been applied in ultra-wideband antenna of this technology and relevant microwave circuit components and parts.
Therefore yet the frequency band that present ultra-wideband communications is shared and WLAN (wireless local area network) have shared part, need the antenna of design to reduce to WLAN (wireless local area network) and bring interference, and the ultra-wideband antenna that design has two trap characteristics becomes the focus of present research.If there is not suitable design to suppress harmonic resonance and parasitic emission, antenna will produce electromagnetic interference near equipment, jeopardize the operate as normal of the system of system itself and vicinity, and particularly the LAN system to present use causes interference.Add filter and be the method for this type of problem of solution of the most normal use, but tend to cause antenna and microwave circuit not to match, even the overall efficiency of reduction system, therefore designing the co-planar waveguide ultra-wideband antenna with trap characteristic is one of important method of head it off, solves the structure of present antenna and the problem of technology more complicated simultaneously.
The utility model content
The purpose of this utility model provides a kind of simple in structure, volume is small and exquisite, novel pair of trap characteristic ultra-wideband antenna of broader bandwidth, this antenna can use on military equipment such as electronics investigation, electronic countermeasures and civil equipment, reduces WLAN(5.15～5.825GHz) and RFID(6.8GHz) the frequency range interference of communicating by letter.
Technical scheme described in the utility model is:
A kind of novel pair of trap characteristic ultra-wideband antenna, it is characterized in that: comprise medium substrate, radiating element, co-planar waveguide signal feed band line, the co-planar waveguide ground plane, described radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane are printed on the 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 and is connected with it from the medium substrate edge, two co-planar waveguide ground planes are individually fixed in coplanar wave guide feedback band line both sides and gapped with the band line.
Described co-planar waveguide ultra-wideband antenna with trap characteristic is characterized in that: open two U-lags on the described co-planar waveguide ground plane.
Described co-planar waveguide ultra-wideband antenna with trap characteristic is characterized in that: described co-planar waveguide ground plane is made of two class trapezium structure metals.
Described co-planar waveguide ultra-wideband antenna with two trap characteristics is characterized in that: open X-shaped groove on the described radiating element.
Described co-planar waveguide ultra-wideband antenna with two trap characteristics is characterized in that: described radiating element is the rectangular configuration of removing two angles.
Beneficial effect:
(1) the utility model antenna single layer printed circuit plate technology can realize, simple and compact for structure, volume is small and exquisite, and is easy to process, and cost is low.
(2) described in the utility modelly open X-shaped groove at radiating element, open U-lag at the co-planar waveguide ground plane, by two trap frequencies of adjusted size of regulating tank, realize ultra-wideband communications and to disturb communication system mutually compatible, communication for coordination.
(3) antenna structure described in the utility model is simple, technical maturity, and the automaticity height is convenient to produce in batches, and low production cost.
(4) the designed antenna of the utility model adopts co-planar waveguide, is printed on medium substrate with on the one side, is conducive to microwave integrated circuit integrated.
(5) the utility model etching groove on radiating element and ground plane has saved Filter Design, reduces the complexity of design cost and system, improves the overall performance of system simultaneously, has also dwindled overall volume.
(6) the utlity model has good impedance bandwidth and trap characteristic, simple and compact for structure, therefore increased its scope of application greatly.
(7) the related antenna of the utility model can improve according to the actual requirements voluntarily, and distance between size, co-planar waveguide ground plane and the radiating element of radiating element, groove size etc. are set, and improves the performance of antenna.
Description of drawings
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the stationary wave characteristic curve of embodiment 1;
Fig. 3 is that embodiment 1 is at the testing radiation directional diagram of 4GHz;
Fig. 4 is that embodiment 1 is at the testing radiation directional diagram of 7GHz;
Fig. 5 is that embodiment 1 is at the testing radiation directional diagram of 10GHz;
Fig. 6 is the equivalent-circuit model figure of radiation source.
Embodiment
Embodiment 1:
As shown in Figure 1, have the ultra-wideband antenna of trap characteristic, its composition comprises: medium substrate (1), radiating element (2), co-planar waveguide ground plane (3), co-planar waveguide signal feed band line (4), open the capable groove of X (5) at radiating element, open U-shaped groove (6) at the co-planar waveguide ground plane.Described radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane are printed on the 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 and is connected with it from the medium substrate edge; The co-planar waveguide ground plane is made of two trapezoidal metals of class, is individually fixed in coplanar wave guide feedback band line both sides and gapped with the band line.
Described medium substrate is the polytetrafluoroethylene material, and thickness 1.6mm, relative dielectric constant are 4.4.
Described coplanar wave guide feedback band line characteristic impedance 50 Ω, live width 3.8mm.
Fig. 2 is the stationary wave characteristic curve of embodiment 1, as shown in Figure 2, antenna is to WLAN(5.15～5.825GHz) and RFID(6.8GHz) two trap points are set, thus make the ultra-wideband communication devices of antenna can be with to disturb communication system mutually compatible, communication for coordination.
Shown in Fig. 3,4,5, the antenna shown in the embodiment 1 has good broadband character and good omnidirectional radiation characteristic.
Claims (5)
1. novel trap characteristic ultra-wideband antenna, it is characterized in that: comprise medium substrate, radiating element, co-planar waveguide signal feed band line, the co-planar waveguide ground plane, described radiating element, co-planar waveguide signal feed band line, co-planar waveguide ground plane are printed on the 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 and is connected with it from the medium substrate edge, two co-planar waveguide ground planes are individually fixed in coplanar wave guide feedback band line both sides and gapped with the band line.
2. novel trap characteristic ultra-wideband antenna according to claim 1 is characterized in that: open two U-lags on the described co-planar waveguide ground plane.
3. novel trap characteristic ultra-wideband antenna according to claim 1, it is characterized in that: described co-planar waveguide ground plane is made of two class trapezium structure metals.
4. novel trap characteristic ultra-wideband antenna according to claim 1 is characterized in that: open X-shaped groove on the described radiating element.
5. novel trap characteristic ultra-wideband antenna according to claim 1, it is characterized in that: described radiating element is the rectangular configuration of removing two angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656786 CN203056091U (en) | 2012-12-04 | 2012-12-04 | A novel ultra-wideband antenna with a wave trapping characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656786 CN203056091U (en) | 2012-12-04 | 2012-12-04 | A novel ultra-wideband antenna with a wave trapping characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056091U true CN203056091U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656786 Expired - Fee Related CN203056091U (en) | 2012-12-04 | 2012-12-04 | A novel ultra-wideband antenna with a wave trapping characteristic |
Country Status (1)
| Country | Link |
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| CN (1) | CN203056091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900996A (en) * | 2015-04-30 | 2015-09-09 | 天津大学 | Ultra wide band monopole antenna with trap characteristic |
| CN105406181A (en) * | 2015-12-04 | 2016-03-16 | 福建星网锐捷网络有限公司 | Monopole antenna and multi-input-multiple-output antenna |
-
2012
- 2012-12-04 CN CN 201220656786 patent/CN203056091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900996A (en) * | 2015-04-30 | 2015-09-09 | 天津大学 | Ultra wide band monopole antenna with trap characteristic |
| CN105406181A (en) * | 2015-12-04 | 2016-03-16 | 福建星网锐捷网络有限公司 | Monopole antenna and multi-input-multiple-output antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Meimei Inventor after: Wu Hongfeng Inventor after: Li Qi Inventor after: Wu Yongfei Inventor after: Hu Wenlong Inventor before: Li Qi Inventor before: Wu Yongfei Inventor before: Hu Wenlong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI QI WU YONGFEI HU WENLONG TO: ZHU MEIMEI WU HONGFENG LI QI WU YONGFEI HU WENLONG |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |