CN202977715U - Miniature ultra-wideband antenna with double trap wave characteristics - Google Patents
Miniature ultra-wideband antenna with double trap wave characteristics Download PDFInfo
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- CN202977715U CN202977715U CN 201220497732 CN201220497732U CN202977715U CN 202977715 U CN202977715 U CN 202977715U CN 201220497732 CN201220497732 CN 201220497732 CN 201220497732 U CN201220497732 U CN 201220497732U CN 202977715 U CN202977715 U CN 202977715U
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- radiation patch
- feed line
- wideband antenna
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- microstrip feed
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Abstract
The utility model discloses a miniature ultra-wideband antenna with double trap wave characteristics, which can be used in equipments in the wireless communication filed. The antenna is composed of a medium substrate, a radiation patch, a micro-strip feed line and a ground plate. The radiation patch is formed by combining a rectangle and a trapezoid. The radiation patch and the micro-strip feed line are axially symmetric relative to the central axis of the medium substrate. The ground plate is located on the bottom of the medium substrate lower surface. The ultra-wideband antenna provided by the utility model has excellent trap wave characteristics. The trap wave frequency ranges basically match the frequency ranges of interference signals. A waste of certain frequency ranges is thus prevented.
Description
Technical field
The utility model belongs to field of antenna, a kind of Miniaturisation ultra-wideband antenna with two trap characteristics of special design.
Background technology
Super-broadband tech is as a kind of short-range communication technique, at the extensive concern that has caused the global communication technical field aspect the indoor high-speed radio communication.As the important component part in radio ultra wide band system, the research of ultra-wideband antenna and design are the objects that numerous scholars study always.Owing to reaching in the frequency range of 7.5GHz in bandwidth, comprised the working frequency range of other communication systems, systems such as WLAN and WiMAX.How to realize the compatibility of radio ultra wide band system and other system, become the difficult point of ultra-wideband antenna design.Simultaneously, along with the development of wireless communication technology, the miniaturization of antenna has become a kind of development trend.
Realize that at present ultra-wideband antenna generally adopts the method for introducing band stop filter to come the interior interference signal of filtering frequency band, does the miniaturization that has not only increased cost of manufacture but also be unfavorable for realizing antenna like this.In recent years the research method of the ultra-wideband antenna of filtering interference signals emerged in an endless stream, wherein introduce a kind of method that the trap structure becomes simple possible in antenna.Introducing the most frequently used technology of trap structure is the fluting technology, as the Wu Xu town, a kind of novel dual-attenuation superwide band single polar antenna that Xue Fengzhang proposed in " Chongqing Mail and Telephones Unvi's journal (natural science edition) " the 24 volume fourth phase, but still exist the problems such as antenna size is large, complicated structure.
The utility model content
For the deficiencies in the prior art, the ultra-wideband antenna that a kind of radiation patch is rectangle and trapezoidal combining structure is proposed, realize the function of two traps by open respectively the line of rabbet joint on radiation patch and ground plate, optimize impedance operator and improve trap characteristic by open square groove on microstrip feed line in addition.By open rectangular channel on ground plate, realize the purpose of widening frequency band.This antenna has the advantages such as simple in structure, easy processing, impedance bandwidth is wide.
The utility model adopts following technical scheme:
The structure of the utility model ultra-wideband antenna comprises: medium substrate, radiation patch, microstrip feed line and ground plate.it is characterized in that: described medium substrate front is printed with radiation patch and microstrip feed line, described radiation patch is by rectangle and trapezoidal combining, and have a U-lag on radiation patch, described microstrip feed line is connected with the radiation patch trapezoidal portions, and be carved with square groove on microstrip feed line, described ground plate is positioned at the medium substrate back side, and opened rectangular channel, described radiation patch is the combination of rectangular configuration and trapezium structure, radiation patch is positioned at the upper surface of medium substrate, the rectangle part of described radiation patch is positioned at the top of trapezoidal portions, trapezoidal portions is wide at the top and narrow at the bottom, described U-lag is engraved on the rectangle part of radiation patch, and the opening upwards of U-lag, described square groove is engraved on microstrip feed line, be positioned at the left and right sides of microstrip feed line, make the microstrip feed line indentation, described rectangular channel is engraved in above ground plate, wherein two narrow rectangular channels are engraved in the position of the ground plate left and right sides, be left-right symmetric.
This programme beneficial effect is: effectively reduced the area of aerial radiation paster by adopting rectangle and trapezoidal combined structure, dwindled the size of antenna, and played the purpose of broadening impedance bandwidth; By the overall length that change is slotted, the centre frequency that can regulate trap; By the square groove of opening at microstrip feed line, can optimize the characteristic of trap, prevent from causing the waste of band resource.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the front elevation of the utility model ultra-wideband antenna.
Fig. 2 is the back view of the utility model ultra-wideband antenna.
Fig. 3 is the reflection coefficient chart of the utility model ultra-wideband antenna.
Fig. 4 is the voltage standing wave ratio curve chart of the utility model ultra-wideband antenna.
Fig. 5 is the directional diagram of the utility model ultra-wideband antenna when 3GHz.
Fig. 6 is the directional diagram of the utility model ultra-wideband antenna when 6GHz.
Fig. 7 is the directional diagram of the utility model ultra-wideband antenna when 9GHz.
In figure: the radiation patch of 1-rectangle and trapezoidal combination, 2-microstrip feed line, 3-square groove, 4-medium substrate, 5-U shape groove, 6-large rectangle groove, the narrow rectangular channel of 7-, 8-ground plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1 and Fig. 2, a kind of small-sized design with ultra-wideband antenna of two trap characteristics makes the interference of ultra-wideband antenna filtering WiMAX signal (3.3GHz-3.7GHz) and WLAN signal (5.15GHz-5.825GHz).This antenna is comprised of rectangle and trapezoidal combination radiation paster 1, microstrip feed line 2, U-lag 5, square groove 3, medium substrate 4, rectangular channel 6, narrow rectangular channel 7 and ground plate 8.
specifically be implemented as follows: radiation patch 1 is positioned at medium substrate 4 tops, the below that microstrip feed line 2 is positioned at medium substrate 4 is connected with the trapezoidal portions of radiation patch, both are positioned at the central authorities of medium substrate 4, structure axisymmetricly, ground plate 8 is positioned at the below of medium substrate 4 opposite sides, U-lag 5 is opened the rectangle part at radiant body sheet 1, opening upwards, the end of U-lag 5, vertically divided equally by the axis of medium substrate 4, two arms of U-lag 5 are symmetrically distributed in the both sides of medium substrate 4 axis, narrow rectangular channel 7 is opened above ground plate 8, the left and right each one, axis with ground plate is symmetrical, rectangular channel 6 is engraved in ground plate 8 middle parts, top, be under microstrip feed line 2, square groove 3 is engraved in microstrip feed line 2 left and right sides, quantity is five.
Referring to Fig. 1 and Fig. 2, label 4 is medium substrates, and its material is polytetrafluoroethylene (FR-4), and its dielectric constant is 4.4, and the size that its length and width are high is 30mm * 15mm * 1.6mm.The radiation patch of antenna, ground plate and microstrip feed line are used shadow representation in the drawings, and the shape of antenna can be obtained by corrosion.In the present embodiment, label 1 is radiation patch, and its outside length and width are of a size of 14mm * 12mm; The length and width of rectangle part are 14mm * 8mm, and the height of trapezoidal portions is 4mm, and the length of going to the bottom is 3mm; Label 5 is U-lag, and the length of groove two arms is 6.8mm, and two spacing arms are 12mm, and width is 0.4mm; Label be 2 be microstrip feed line, its length and width are 16.8mm * 3mm, label be 3 for square groove, the size of every square groove is 0.5mm * 0.5mm; Label 8 is ground plate, is of a size of 15mm * 15mm, and the rectangular channel of label 6 is opened on ground plate, and it is of a size of 5mm * 3mm; The narrow rectangular channel of label 7 is positioned at the left and right sides of rectangular channel, is 6mm apart from the distance of medium substrate center line, and length is 7.3mm, and wide is 0.5mm.
Fig. 3 is the reflection coefficient chart of the present embodiment, the impedance bandwidth of antenna is 2.88GHz-11.52GHz as can see from Figure 3, the frequency multiplication bandwidth is 4: 1, reach the frequency band requirement of FCC (FCC), wherein in 3.20GHz-4.06GHz and 5.04GHz-5.84GHz frequency range return loss greater than-10dB, Fig. 4 is the standing-wave ratio curve chart of the present embodiment, as can be seen from Figure 4 this antenna in trap frequency range standing-wave ratio greater than 2.As the directional diagram of Fig. 5, Fig. 6 and this antenna that is respectively the present embodiment when frequency 3GHz, 6GHz and the 9GHz shown in Figure 7, can find out that antenna has this good omnidirectional's characteristic at horizontal plane, satisfy the index request of design.
Above-mentioned example is the better execution mode of the utility model, on the basis of the present embodiment, changes the size of radiation patch, microstrip feed line and ground plane in addition; Change the size of U-lag and quantity and the size of square groove, all should be included in protection range of the present utility model.
Claims (6)
1. Miniaturisation ultra-wideband antenna with two trap characteristics, comprising medium substrate, radiation patch, microstrip feed line and ground plate, it is characterized in that: described medium substrate front is printed with radiation patch and microstrip feed line, described radiation patch is by rectangle and trapezoidal combining, and have a U-lag on radiation patch, described microstrip feed line is connected with the radiation patch trapezoidal portions, and be carved with square groove on microstrip feed line, described ground plate is positioned at the medium substrate back side, and has opened rectangular channel.
2. the Miniaturisation ultra-wideband antenna with two trap characteristics according to claim 1, its feature comprises: described radiation patch is the combination of rectangular configuration and trapezium structure, and radiation patch is positioned at the upper surface of medium substrate.
3. the Miniaturisation ultra-wideband antenna with two trap characteristics according to claim 1, its feature comprises: the rectangle part of described radiation patch is positioned at the top of trapezoidal portions, and trapezoidal portions is wide at the top and narrow at the bottom.
4. the Miniaturisation ultra-wideband antenna with two trap characteristics according to claim 1, its feature comprises: described U-lag is engraved on the rectangle part of radiation patch, and the opening upwards of U-lag.
5. the Miniaturisation ultra-wideband antenna with two trap characteristics according to claim 1, its feature comprises: described square groove is engraved on microstrip feed line, is positioned at the left and right sides of microstrip feed line, makes the microstrip feed line indentation.
6. the Miniaturisation ultra-wideband antenna with two trap characteristics according to claim 1, its feature comprises: described rectangular channel is engraved in the ground plate top, and wherein two narrow rectangular channels are engraved in the position of the ground plate left and right sides, are left-right symmetric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497732 CN202977715U (en) | 2012-09-27 | 2012-09-27 | Miniature ultra-wideband antenna with double trap wave characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497732 CN202977715U (en) | 2012-09-27 | 2012-09-27 | Miniature ultra-wideband antenna with double trap wave characteristics |
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| Publication Number | Publication Date |
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| CN202977715U true CN202977715U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220497732 Expired - Fee Related CN202977715U (en) | 2012-09-27 | 2012-09-27 | Miniature ultra-wideband antenna with double trap wave characteristics |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730722A (en) * | 2014-01-06 | 2014-04-16 | 北京邮电大学 | Small ultra-wide-band antenna with dual-band trapped waves |
| CN104466381A (en) * | 2014-12-19 | 2015-03-25 | 郑召文 | Step-shaped slotted ultra-wideband microstrip antenna |
| CN104953272A (en) * | 2015-07-15 | 2015-09-30 | 中南大学 | Tri-band ultra-wide-band antenna with defected ground and circular groove |
| CN105071028A (en) * | 2015-08-26 | 2015-11-18 | 华南理工大学 | Filtering patch antenna without additional arrangement of filter circuit, and adjustment method thereof |
| CN105161831A (en) * | 2015-07-10 | 2015-12-16 | 中南大学 | Defected-ground double inverted L-shaped groove five-frequency-band antenna |
| CN105186080A (en) * | 2015-07-27 | 2015-12-23 | 电子科技大学 | Half-mode substrate integrated waveguide band-pass filter |
| CN105406185A (en) * | 2015-12-14 | 2016-03-16 | 天津大学 | Miniature dual-band broadband patch antenna |
| CN106876963A (en) * | 2015-12-13 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | A kind of new hexagon Ultrawide-band trap antenna |
| CN110459866A (en) * | 2019-08-09 | 2019-11-15 | 武汉慧联无限科技有限公司 | A kind of gap structure trap antenna and the gateway with the antenna |
| CN110867653A (en) * | 2019-12-03 | 2020-03-06 | 重庆邮电大学 | Ultra-wideband trapped wave monopole antenna based on electromagnetic band gap structure |
| CN115548662A (en) * | 2022-09-29 | 2022-12-30 | 东莞理工学院 | UWB antenna applied to wireless communication system |
-
2012
- 2012-09-27 CN CN 201220497732 patent/CN202977715U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730722A (en) * | 2014-01-06 | 2014-04-16 | 北京邮电大学 | Small ultra-wide-band antenna with dual-band trapped waves |
| CN104466381A (en) * | 2014-12-19 | 2015-03-25 | 郑召文 | Step-shaped slotted ultra-wideband microstrip antenna |
| CN105161831B (en) * | 2015-07-10 | 2018-08-10 | 中南大学 | A kind of double five frequency-band antennas of inverted L-shaped slot in defect ground |
| CN105161831A (en) * | 2015-07-10 | 2015-12-16 | 中南大学 | Defected-ground double inverted L-shaped groove five-frequency-band antenna |
| CN104953272A (en) * | 2015-07-15 | 2015-09-30 | 中南大学 | Tri-band ultra-wide-band antenna with defected ground and circular groove |
| CN105186080A (en) * | 2015-07-27 | 2015-12-23 | 电子科技大学 | Half-mode substrate integrated waveguide band-pass filter |
| CN105071028A (en) * | 2015-08-26 | 2015-11-18 | 华南理工大学 | Filtering patch antenna without additional arrangement of filter circuit, and adjustment method thereof |
| CN105071028B (en) * | 2015-08-26 | 2018-06-29 | 华南理工大学 | Filtering paster antenna and its adjusting method without additional filter circuit |
| CN106876963A (en) * | 2015-12-13 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | A kind of new hexagon Ultrawide-band trap antenna |
| CN105406185A (en) * | 2015-12-14 | 2016-03-16 | 天津大学 | Miniature dual-band broadband patch antenna |
| CN110459866A (en) * | 2019-08-09 | 2019-11-15 | 武汉慧联无限科技有限公司 | A kind of gap structure trap antenna and the gateway with the antenna |
| CN110867653A (en) * | 2019-12-03 | 2020-03-06 | 重庆邮电大学 | Ultra-wideband trapped wave monopole antenna based on electromagnetic band gap structure |
| CN115548662A (en) * | 2022-09-29 | 2022-12-30 | 东莞理工学院 | UWB antenna applied to wireless communication system |
| CN115548662B (en) * | 2022-09-29 | 2024-01-26 | 东莞理工学院 | UWB antenna applied to wireless communication system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130605 Termination date: 20130927 |