CN204045737U - The ultra-wideband printed antenna of a kind of small-sized trap - Google Patents
The ultra-wideband printed antenna of a kind of small-sized trap Download PDFInfo
- Publication number
- CN204045737U CN204045737U CN201420286962.3U CN201420286962U CN204045737U CN 204045737 U CN204045737 U CN 204045737U CN 201420286962 U CN201420286962 U CN 201420286962U CN 204045737 U CN204045737 U CN 204045737U
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- antenna
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- trap
- ground plane
- small
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Abstract
The utility model discloses the ultra-wideband printed antenna of a kind of small-sized trap, this antenna can be applicable on military and civilian communication terminal device.This antenna is made up of medium substrate, radiation patch, microstrip feed line, ground plane.Radiation patch is connected with microstrip feed line and is printed on the both sides of medium substrate with ground plane respectively, radiation patch is made up of circular and decussate texture, wherein circular radiation paster inside has square groove, is attached with decussate texture in groove, and ground plane middle upper part is carved with rectangular channel.The trap characteristic of the utility model antenna is good, and trap frequency range and interference band are substantially identical, and bandwidth of operation is adjustable, and passband matching properties is good, and volume is little, simple for production.
Description
Technical field
Belong to field of antenna at the utility model, particularly relate to the ultra-wideband printed antenna of a kind of small-sized trap.
Background technology
Since on January 14th, 2002, FCC 3.1-10.6GHz frequency range is incorporated into for civilian exempt from the ultra wideband frequency of licence after, ultra broadband short-range communication technique just becomes the focus of wireless communication field keen competition.But at the whole bandwidth memory of UWB in many frequency ranges used, as WLAN (wireless local area network) WLAN, UWB can cause potential interference to the narrowband systems existed, the usefulness of reduction system, therefore studies the heat subject that the ultra-wideband printed antenna with trap characteristic has become scientific and technical personnel's research.
Realize ultra-wideband antenna at present and generally adopt the interference signal introduced the method for band stop filter and come in filtering frequency band, add cost of manufacture like this, and be unfavorable for the realization of antenna miniaturization.By adding trap to antenna, efficiently solve the interference signal in frequency band.What the trap structure way of realization of antenna was the most frequently used is grooving techniques, as Li Ming, the people such as Li Yingsong are at the miniaturized trap UWB antenna of one of " applicating technology " the 38 volume the 9th phase proposition, although notch bandwidth is wider, but still there is antenna structure more complicated, the problems such as high band radiation characteristic is not good.
Summary of the invention
The utility model trap UWB antenna adopts circular radiation paster, circular radiation paster cuts away square groove, then in square groove, decussate texture is added to realize trap function, on ground plane, open rectangular channel in addition can reach the object optimizing impedance bandwidth, by regulating the size of rectangular channel, also can regulate the characteristic impedance of microstrip line, thus reach the object of widening frequency band.
The utility model adopts following technical scheme:
The utility model trap UWB antenna comprises medium substrate, radiation patch, microstrip feed line, ground plane, it is characterized in that: described medium substrate front is printed with radiation patch and microstrip feed line, described microstrip feed line is connected with radiation patch, described medium substrate back up has ground plane, and has rectangular channel.Wherein radiation patch is that circular configuration and decussate texture combine, and has square groove on circular radiation paster.
This programme effect is: by circular radiation paster internal notches, effectively reduce the area of aerial radiation paster, reduce the size of antenna; By changing the length of fluting, the frequency bandwidth of trap can be regulated; By inserting the tuning microstrip line of rectangle in groove inside, in tuning microstrip line, bottom increases horizontal rectangle, can regulate the centre frequency of trap, optimizes the characteristic of trap, prevents the waste causing band resource.
Accompanying drawing explanation
Fig. 1 is the front elevation of the ultra-wideband printed antenna of the utility model trap.
Fig. 2 is the back view of the ultra-wideband printed antenna of the utility model trap.
Fig. 3 is the return loss plot figure of the ultra-wideband printed antenna of the utility model trap.
Fig. 4 is the voltage standing wave ratio curve chart of the ultra-wideband printed antenna of the utility model trap.
Fig. 5 is the antenna pattern of the ultra-wideband printed antenna of the utility model trap at 3GHz.
Fig. 6 is the antenna pattern of the ultra-wideband printed antenna of the utility model trap at 5GHz.
Fig. 7 is the antenna pattern of the ultra-wideband printed antenna of the utility model trap at 7GHz.
Fig. 8 is the antenna pattern of the ultra-wideband printed antenna of the utility model trap at 9GHz.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
See Fig. 1 and Fig. 2, the ultra-wideband printed antenna of this trap is made up of medium substrate 1, microstrip feed line 2, radiating element 3, square groove 4, radiating element 5, ground plane 6 and rectangular channel 7.
Specifically be implemented as follows: radiating element 3 is positioned at the top in medium substrate 1 front, microstrip feed line 2 is positioned at the below in medium substrate 1 front, and both are positioned at the central authorities of medium substrate 1, axisymmetricly structure.Square groove 4 opens the inside at radiating element 3, square groove 4 is vertically divided equally by the axis of medium substrate 1, radiating element 5 is about one asymmetric symmetrical decussate textures, ground plane 6 is positioned at the below at medium substrate 1 back side, rectangular channel 7 is opened on ground plane 6, be positioned at immediately below microstrip feed line, ground plane and rectangular channel are bilateral symmetry.
See Fig. 1, Fig. 2, the radiation patch of antenna, ground plane and microstrip feed line, use shadow representation in the drawings, the shape of antenna can be obtained by corrosion.In the present embodiment, label 1 is medium substrate, and its material is polytetrafluoroethylene (FR-4), and its dielectric constant is 4.4, and the size of its length and width thickness is 40mm × 27mm × 1.5mm; Label 2 is microstrip feed lines, and its length and width are of a size of 12mm × 2.4mm; Label 3 is circular radiation unit, and radius is 12mm; Label 4 is square groove, and its length of side is 8mm, and square groove is centrally located at 4.5mm place immediately below the circular radiation unit center of circle; Label 5 is cross-like radiation unit, and the horizontal length and width of decussate texture are of a size of 4mm × 2mm, and longitudinal length and width are of a size of 6.5mm × 1.2mm, wherein the longitudinal rectangular base 1mm of horizontal rectangular distance; Label 6 is ground planes, and its length and width are of a size of 27mm × 11.8mm; Label 7 is rectangular channels, and its length and width are of a size of 4mm × 2mm, and rectangular channel is positioned at immediately below microstrip feed line, tangent with the top edge of ground plane.
Fig. 3 is the reflection coefficient chart of the present embodiment, the impedance bandwidth of antenna is 2.9GHz-10.8GHz as can see from Figure 3, frequency multiplication bandwidth is 3.7:1, reaches FCC(FCC) band requirement, be wherein greater than-10dB in 5GHz-6GHz frequency range return loss.Fig. 4 is the standing-wave ratio curve chart of the present embodiment, and as can be seen from Figure 4 this antenna is greater than 2 in trap frequency range standing-wave ratio.Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are the directional diagram of the present embodiment this antenna when frequency 3GHz, 5GHz, 7GHz and 9GHz respectively, and as can be seen from the figure the present embodiment has good directivity in whole frequency range, meets design requirement.
Above-mentioned example is the utility model preferably execution mode, in addition on the basis of the present embodiment, changes the size of circular radiation unit, the position of square groove and the size and dimension of decussate texture, all should be included in protection range of the present utility model.
Claims (4)
1. the ultra-wideband printed antenna of small-sized trap, its composition comprises medium substrate, radiation patch, microstrip feed line, ground plane, it is characterized in that: described medium substrate front is printed with radiation patch and microstrip feed line, described microstrip feed line is connected with radiation patch, described medium substrate back up has ground plane, and has rectangular channel.
2. the ultra-wideband printed antenna of the small-sized trap of one according to claim 1, its feature comprises: described radiation patch is the combination of circular configuration and decussate texture.
3. the ultra-wideband printed antenna of the small-sized trap of one according to claim 2, its feature comprises: described circular radiation paster inside has square groove, and square groove is positioned at position on the lower side, the center of circle.
4. the ultra-wideband printed antenna of the small-sized trap of one according to claim 2, its feature comprises: described cross-like radiation paster, is asymmetric, bilateral symmetry up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286962.3U CN204045737U (en) | 2014-06-03 | 2014-06-03 | The ultra-wideband printed antenna of a kind of small-sized trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286962.3U CN204045737U (en) | 2014-06-03 | 2014-06-03 | The ultra-wideband printed antenna of a kind of small-sized trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045737U true CN204045737U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286962.3U Expired - Fee Related CN204045737U (en) | 2014-06-03 | 2014-06-03 | The ultra-wideband printed antenna of a kind of small-sized trap |
Country Status (1)
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| CN (1) | CN204045737U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161849A (en) * | 2015-07-13 | 2015-12-16 | 深圳市保千里电子有限公司 | Microwave ultra-wideband antenna |
| CN106252852A (en) * | 2016-09-18 | 2016-12-21 | 北京石油化工学院 | Monopole ultra-wideband antenna |
| CN113300099A (en) * | 2021-05-18 | 2021-08-24 | 长沙驰芯半导体科技有限公司 | Miniaturized ultra wide band and bluetooth printed antenna |
| CN114744400A (en) * | 2022-06-13 | 2022-07-12 | 湖南大学 | Miniaturized ultra wide band trapped wave antenna |
-
2014
- 2014-06-03 CN CN201420286962.3U patent/CN204045737U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161849A (en) * | 2015-07-13 | 2015-12-16 | 深圳市保千里电子有限公司 | Microwave ultra-wideband antenna |
| CN105161849B (en) * | 2015-07-13 | 2020-04-28 | 深圳市保千里电子有限公司 | Microwave ultra-wideband antenna |
| CN106252852A (en) * | 2016-09-18 | 2016-12-21 | 北京石油化工学院 | Monopole ultra-wideband antenna |
| CN113300099A (en) * | 2021-05-18 | 2021-08-24 | 长沙驰芯半导体科技有限公司 | Miniaturized ultra wide band and bluetooth printed antenna |
| CN114744400A (en) * | 2022-06-13 | 2022-07-12 | 湖南大学 | Miniaturized ultra wide band trapped wave antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170105 Address after: Double Town Industrial Park 300222 Tianjin Jinnan Hengde production Park building 45 109-3 Patentee after: Tianjin dragon Maoming Wei Technology Co., Ltd. Address before: 300222 Dagu South Road, Jinnan District, No. 1310, No. Patentee before: Tianjin University of Technology and Education |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20190603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |