CN105576364A - Miniature dual-band ultra-wideband antenna - Google Patents
Miniature dual-band ultra-wideband antenna Download PDFInfo
- Publication number
- CN105576364A CN105576364A CN201610018035.7A CN201610018035A CN105576364A CN 105576364 A CN105576364 A CN 105576364A CN 201610018035 A CN201610018035 A CN 201610018035A CN 105576364 A CN105576364 A CN 105576364A
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- China
- Prior art keywords
- antenna
- substrate
- wideband antenna
- band ultra
- radiation patch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Waveguide Aerials (AREA)
Abstract
The invention discloses a miniature dual-band ultra-wideband antenna. The miniature dual-band ultra-wideband antenna is characterized by comprising a substrate, a radiation patch and a feeding transmission line, wherein the radiation patch is arranged on the front surface of the substrate and is in a shape with an inverted T in a rectangular frame; the bottom part of the radiation patch is connected with the feeding transmission line through a smooth curve structure; the central angle corresponding to a camber line of the smooth curve structure is 90 degrees; and an inverted T-shaped open slot is formed in the bottom part of the back surface of the substrate. The miniature dual-band ultra-wideband antenna has the beneficial effects that (1) the antenna unit is very small in size, small in volume, simple in structure, low in cost and high in antenna gain; (2) the working band of the antenna is 2.37GHz-2.57GHz and 3.6GHz-11.7GHz; the bandwidth of a high-frequency part is greater than those of other antennas; and the overall radiation efficiency is good; and (3) the application is relatively wide.
Description
Technical field
The present invention relates to a kind of small capacity double frequency band ultra-wideband antenna, belong to wireless communication technology field.
Background technology
The fast development of wireless communication technology makes existing frequency spectrum resource growing tension, proposes more and more higher requirement to the power system capacity of radio communication and transmission rate.Super-broadband tech due to its low-power consumption, high data transmission rate, high-resolution, low cost, antijamming capability is strong, good confidentiality and can with the series of advantages such as other narrow-band communication systems coexist and be subject to paying close attention to of people.Compared to traditional antenna, ultra-wideband antenna design faces more challenge, and traditional broad-band antenna can not undistorted transmission UWB signal.
UWB antenna common at present such as helical antenna, logarithm periodic antenna, TEM horn antenna, Vivaldi antenna etc. exist that volume is large, complex structure, are difficult to realize and the problem such as miniaturized system is integrated.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of small capacity double frequency band ultra-wideband antenna, solving volume little, structure is simple, and cost is low, the needs of problems that impedance bandwidth is very wide, meets the high performance communication of existing wireless communications network.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of small capacity double frequency band ultra-wideband antenna, is characterized in that, comprise substrate, radiation patch and feeding transmission line; Described radiation patch is arranged on the front of substrate, adopts in a rectangle frame and falls the shape of T with one; The bottom of described radiation patch is connected by level and smooth curvilinear structures with between feeding transmission line; The central angle that the camber line of described level and smooth curvilinear structures is corresponding is 90 degree; Described substrate back part is coated with copper sheet, substrate back is provided with inverted T shape open slot; The periphery of described open slot is coated with radiation patch.
Aforesaid small capacity double frequency band ultra-wideband antenna, is characterized in that, described substrate adopts FR4 substrate.
Aforesaid small capacity double frequency band ultra-wideband antenna, it is characterized in that, described substrate is of a size of 18mm × 12mm × 1.6mm.
Aforesaid small capacity double frequency band ultra-wideband antenna, is characterized in that, the radius of circle that the camber line of described level and smooth curvilinear structures is corresponding is 2mm.
Aforesaid small capacity double frequency band ultra-wideband antenna, it is characterized in that, described inverted T shape open slot is arranged on the middle body of substrate back.
The beneficial effect that the present invention reaches: 1. this antenna element is small-sized, and only have 18mm × 12mm × 1.6mm, volume is little, structure is simple, and cost is low, and antenna gain is high; 2. the working band of antenna is at 2.37GHz-2.57GHz and 3.6GHz-11.7GHz, bandwidth ratio other day live width of its HFS, integral radiation excellent in efficiency, and the efficiency of antenna modeling emulation can up to 78.6%; 3. purposes is more wide in range, can meet WLAN (2.45GHz), the demand that WiMAX (5.25-5.85GHz) and UWB (3.96-10.6GHz) applies.
Accompanying drawing explanation
Fig. 1 (a) (b) is the structural representation of the front and back of this device respectively;
Fig. 2 is the return loss schematic diagram of this device simulation and actual measurement;
Fig. 3 is the gain curve schematic diagram of this device simulation;
Fig. 4 be in this device T-type structure affect schematic diagram;
Fig. 5 (a) (b) is direction, xoz and the yoz face schematic diagram that this device is surveyed when 2.45GHz frequency and emulated respectively;
Fig. 6 (a) (b) is direction, xoz and the yoz face schematic diagram that this device is surveyed when 5GHz frequency and emulated respectively.
The implication of Reference numeral:
1-substrate, 2-radiation patch, 3-feeding transmission line, 4-open slot, the curvilinear structures that 5-is level and smooth.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, give the concrete size of antenna in the present embodiment, in figure, the unit of size is mm.Whole antenna is laid on the FR4 substrate of 18mm × 12mm × 1.6mm, and the loss corner cut of FR4 material is tan δ=0.02, DIELECTRIC CONSTANT ε
r=4.4.The front of antenna is that a rectangle tundish is containing a T-type structure, the back side for incomplete ground (be not namely whole substrate back be all metal ground, substrate back is not all apply copper as floor, part is only had to be covered by copper sheet), incomplete ground is provided with a T-shaped open slot, and this T-shaped open slot can carry out electric capacity coupling to whole antenna.Consider from symmetry, T-shaped open slot particular location is at middle body, otherwise the directional diagram of antenna can be asymmetric, and the radiation patch around backside openings groove is floor.
Curvilinear structures level and smooth in this device is of value to the acquisition of ultra broadband, is a kind of ultra broadband structure, and by changing corresponding radius of circle, the impedance matching of antenna also can change thereupon.In the present embodiment, the radius of 2mm is adopted.
As Fig. 2, solid line is the simulated return loss curve of designing antenna, and the frequency band range of-10dB is 2.37GHz-2.57GHz and 3.6GHz-11.7GHz.In figure, dotted line is the actual measured results making antenna material object,-10dB frequency band range is 2.42GHz-2.63GHz and 3.84GHz-10.1GHz, WLAN agreement can be met, the partial-band of WiMAX agreement and UWB requires (demand that WLAN (2.45GHz), WiMAX (5.25-5.85GHz) and UWB (3.96-10.6GHz) apply).
As the gain curve that Fig. 3 is antenna emulation, antenna is-2.2dBi and 4.8dBi at the average gain of low frequency part and HFS respectively.
Fig. 4 is the impact of T-type structure in antenna.Clearance distance between the T-type structure of antenna structure inside and outer rectangle is give s in s, figure to change from 0.1mm-0.4mm, on the impact of antenna return loss curve.
As Fig. 5, the xoz face directional diagram that figure (a) is 2.45GHz frequency, figure (b) is the yoz face directional diagram of 2.45GHz frequency.
As Fig. 6, the xoz face directional diagram that figure (a) is 5GHz frequency, figure (b) is the yoz face directional diagram of 5GHz frequency.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (5)
1. a small capacity double frequency band ultra-wideband antenna, is characterized in that, comprises substrate, radiation patch and feeding transmission line; Described radiation patch is arranged on the front of substrate, adopts in a rectangle frame and falls the shape of T with one; The bottom of described radiation patch is connected by level and smooth curvilinear structures with between feeding transmission line; The central angle that the camber line of described level and smooth curvilinear structures is corresponding is 90 degree; Described substrate back part is coated with copper sheet, substrate back is provided with inverted T shape open slot; The periphery of described open slot is coated with radiation patch.
2. small capacity double frequency band ultra-wideband antenna according to claim 1, is characterized in that, described substrate adopts FR4 substrate.
3. small capacity double frequency band ultra-wideband antenna according to claim 2, it is characterized in that, described substrate is of a size of 18mm × 12mm × 1.6mm.
4. small capacity double frequency band ultra-wideband antenna according to claim 1, is characterized in that, the radius of circle that the camber line of described level and smooth curvilinear structures is corresponding is 2mm.
5. small capacity double frequency band ultra-wideband antenna according to claim 1, it is characterized in that, described inverted T shape open slot is arranged on the middle body of substrate back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018035.7A CN105576364A (en) | 2016-01-12 | 2016-01-12 | Miniature dual-band ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018035.7A CN105576364A (en) | 2016-01-12 | 2016-01-12 | Miniature dual-band ultra-wideband antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105576364A true CN105576364A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610018035.7A Pending CN105576364A (en) | 2016-01-12 | 2016-01-12 | Miniature dual-band ultra-wideband antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654547A (en) * | 2016-09-23 | 2017-05-10 | 南京信息工程大学 | Ultra wide band antenna of wire-board junction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060066487A1 (en) * | 2004-09-30 | 2006-03-30 | Jong-Kweon Park | Trapezoid ultra wide band patch antenna |
| CN205355250U (en) * | 2016-01-12 | 2016-06-29 | 南京信息工程大学 | Small -size double frequency -band ultra -wideband antenna |
-
2016
- 2016-01-12 CN CN201610018035.7A patent/CN105576364A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060066487A1 (en) * | 2004-09-30 | 2006-03-30 | Jong-Kweon Park | Trapezoid ultra wide band patch antenna |
| CN205355250U (en) * | 2016-01-12 | 2016-06-29 | 南京信息工程大学 | Small -size double frequency -band ultra -wideband antenna |
Non-Patent Citations (2)
| Title |
|---|
| LINGSHENG YANG等: ""A COMPACT CIRCULAR CORNER MONOPOLE ANTENNA FOR UWB APPLICATION"", 《MICROWAVE AND OPTICAL TECHNOLOGY LETTERS》 * |
| WEN JIANG，WENQUAN CHE: ""A Novel UWB Antenna With Dual Notched Bands for WiMAX and WLAN Applications"", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654547A (en) * | 2016-09-23 | 2017-05-10 | 南京信息工程大学 | Ultra wide band antenna of wire-board junction |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |