CN203056087U - Ultra-wideband antenna with double 8-shaped structure resonant cavities - Google Patents
Ultra-wideband antenna with double 8-shaped structure resonant cavities Download PDFInfo
- Publication number
- CN203056087U CN203056087U CN 201220656700 CN201220656700U CN203056087U CN 203056087 U CN203056087 U CN 203056087U CN 201220656700 CN201220656700 CN 201220656700 CN 201220656700 U CN201220656700 U CN 201220656700U CN 203056087 U CN203056087 U CN 203056087U
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- double
- transmission line
- wideband antenna
- resonant cavities
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Abstract
The utility model discloses an ultra-wideband antenna with double 8-shaped structure resonant cavities and having a wave trapping characteristic. The ultra-wideband antenna is composed of a medium substrate (1), a radiation unit (2), a reversed-E structure groove (3) on the radiation unit (2), a microstrip transmission line (4), the double 8-shaped metal structure resonant cavities (5), and a ground plane (6). The radiation unit, the microstrip transmission line, the double 8-shaped metal structure resonant cavities are all printed on the upper surface of the medium substrate. The radiation unit is located in the middle of the medium substrate. The double 8-shaped metal structure resonant cavities are located at the both sides of the microstrip transmission line. The reversed-E structure groove is formed on the radiation unit. The 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 double 8-shaped metal structure resonant cavities; and the problem of same frequency interferences of an ultra-wideband communication system is solved.
Description
Technical field
The utility model relates to a kind of antenna, a kind of ultra-wideband antenna with two figure-8 structure resonant cavitys of specific design.
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, simultaneously ultra-wideband antenna is also had higher requirement, make it to have more challenge than the design of traditional antenna, mainly show: super wide working band (is generally 3.1GHz-10.6GHz) to antenna except needs have, also want to keep the compactness of size, weight frivolous, and be easy to the plane large-scale circuit integrated.
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 to have the resonant cavity ultra-wideband antenna be one of important method of head it off to two figure-8 structures of design with two trap characteristics, solves the structure of present antenna and the problem of technology more complicated simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, volume is small and exquisite, the ultra-wideband antenna with trap characteristic of broader bandwidth, this antenna can use on military equipment such as electronics investigation, electronic countermeasures and civil equipment, reduces the broadband intercommunication microwave is inserted WiMAX(3.3～3.6GHz), WLAN (wireless local area network) WLAN(5.15～5.825GHz).
Technical scheme described in the utility model is:
A kind of novel two figure-8 structure resonant cavity ultra-wideband antennas, it is characterized in that: comprise medium substrate, radiating element, microstrip transmission line, two figure-8 structure metal resonant cavitys, ground plane, described radiating element, microstrip transmission line, two two figure-8 structure metal resonant cavitys all are printed on the medium substrate upper surface, and described ground plane is printed on the back side of medium substrate.
Described pair of figure-8 structure resonant cavity ultra-wideband antenna is characterized in that: described microstrip transmission line both sides have the metal resonant cavity of two figure-8 structures to constitute respectively.
Described pair of figure-8 structure resonant cavity ultra-wideband antenna is characterized in that: described microstrip transmission line both sides, the metal resonant cavity size of two figure-8 structures is unequal.
Described pair of figure-8 structure resonant cavity ultra-wideband antenna is characterized in that: open the shape of falling E structure groove on the described radiating element.
Concrete structure:
(1) there are two figure-8 structure resonant cavitys the utility model microstrip line both sides on medium substrate, make antenna have two trap characteristics at frequency range 3.1GHz-10.6GHz.
(2) 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.
(3) described in the utility model on radiating element the etching shape of falling E structure groove, by regulating the adjusted size trap frequency of figure-8 structure resonant cavity, realize ultra-wideband communications and disturb the compatible communication for coordination of communication system mutually.
(4) antenna structure described in the utility model is simple, technical maturity, and the automaticity height is convenient to produce in batches.
Description of drawings
Fig. 1 is front elevation of the present utility model;
Fig. 2 is side view of the present utility model;
Embodiment
The antenna example:
As shown in Figure 1, have two figure-8 structure resonant cavity ultra-wideband antennas of trap characteristic, its composition comprises: medium substrate (1), radiating element (2), at the radiating element shape of falling E structure groove (3), microstrip transmission line (4) 8 font metal structure resonant cavitys (5), ground plane (6).Described radiating element, microstrip transmission line, 8 font metal structure resonant cavitys all are printed on the medium substrate upper surface; Described radiating element is positioned at the middle part of medium substrate, and 8 font metal structure resonant cavitys are positioned at the microstrip transmission line both sides; The shape of falling E structure groove is opened on radiating element.
Described medium substrate is the polytetrafluoroethylene material, and thickness 0.787mm, relative dielectric constant are 2.2.
Described radiating element has the shape of falling E groove structure.
Described microstrip transmission line characteristic impedance 50 Ω, live width 2.4mm.
8 font metal structure resonant cavitys of described microstrip transmission line both sides are also not exclusively closed.
Antenna inserts (WiMAX), wireless lan (wlan) at the broadband intercommunication microwave respectively, thus make time antenna ultra-wideband communication devices can with disturb the compatible communication for coordination of communication system mutually.
Two figure-8 structure resonant cavity ultra-wideband antennas have good stationary wave characteristic curve chart, have well two trap characteristics.The impedance bandwidth of this antenna standing wave ratio (smaller or equal to 2:1) is 3.1-11.4GHz, satisfy the demand of ultra-wideband communications, a trap characteristic is arranged between 3.3-3.6GHZ, a trap characteristic is also arranged between 5-6GHZ, can eliminate or reduce ultra-wideband antenna to the electromagnetic interference of WLAN (wireless local area network), two trap characteristics are by two figure-8 structure resonant cavity contributions.
Claims (4)
1. novel two figure-8 structure resonant cavity ultra-wideband antennas, it is characterized in that: comprise medium substrate, radiating element, microstrip transmission line, two figure-8 structure metal resonant cavitys, ground plane, described radiating element, microstrip transmission line, two figure-8 structure metal resonant cavitys all are printed on the medium substrate upper surface, and described ground plane is printed on the back side of medium substrate.
2. according to claim 1 pair of figure-8 structure resonant cavity ultra-wideband antenna is characterized in that: the microstrip transmission line both sides have the metal resonant cavity of two figure-8 structures to constitute respectively.
3. according to claim 1 and 2 pair of figure-8 structure resonant cavity ultra-wideband antenna, it is characterized in that: the microstrip transmission line both sides, the metal resonant cavity size of two figure-8 structures is unequal.
4. according to claim 1 pair of figure-8 structure resonant cavity ultra-wideband antenna is characterized in that: open the shape of falling E structure groove on the radiating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656700 CN203056087U (en) | 2012-12-04 | 2012-12-04 | Ultra-wideband antenna with double 8-shaped structure resonant cavities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656700 CN203056087U (en) | 2012-12-04 | 2012-12-04 | Ultra-wideband antenna with double 8-shaped structure resonant cavities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056087U true CN203056087U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201220656700 Expired - Fee Related CN203056087U (en) | 2012-12-04 | 2012-12-04 | Ultra-wideband antenna with double 8-shaped structure resonant cavities |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855466A (en) * | 2014-03-25 | 2014-06-11 | 电子科技大学 | Three-stopband ultra wideband antenna with narrow notch bandwidth |
| CN103943960A (en) * | 2014-05-13 | 2014-07-23 | 北京邮电大学 | Novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to feeder and patch |
| CN103943952A (en) * | 2014-02-28 | 2014-07-23 | 湘南学院 | Planar ultra-wideband antenna |
| CN107565210A (en) * | 2016-07-01 | 2018-01-09 | 中兴通讯股份有限公司 | A kind of resonant element of antenna and the antenna with the resonant element |
| CN108767465A (en) * | 2018-06-05 | 2018-11-06 | 哈尔滨工程大学 | Based on artificial miniaturization metamaterial structure two-band trap UWB antenna |
| CN109755733A (en) * | 2018-12-11 | 2019-05-14 | 上海电力学院 | A kind of double trap UWB antennas based on liquid crystal polymer |
-
2012
- 2012-12-04 CN CN 201220656700 patent/CN203056087U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943952A (en) * | 2014-02-28 | 2014-07-23 | 湘南学院 | Planar ultra-wideband antenna |
| CN103943952B (en) * | 2014-02-28 | 2016-04-13 | 湘南学院 | A kind of plane ultra-wideband antenna |
| CN103855466A (en) * | 2014-03-25 | 2014-06-11 | 电子科技大学 | Three-stopband ultra wideband antenna with narrow notch bandwidth |
| CN103943960A (en) * | 2014-05-13 | 2014-07-23 | 北京邮电大学 | Novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to feeder and patch |
| CN107565210A (en) * | 2016-07-01 | 2018-01-09 | 中兴通讯股份有限公司 | A kind of resonant element of antenna and the antenna with the resonant element |
| CN108767465A (en) * | 2018-06-05 | 2018-11-06 | 哈尔滨工程大学 | Based on artificial miniaturization metamaterial structure two-band trap UWB antenna |
| CN109755733A (en) * | 2018-12-11 | 2019-05-14 | 上海电力学院 | A kind of double trap UWB antennas based on liquid crystal polymer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131204 |