CN106876960A - A kind of monopole ultra-wideband antenna based on T-slot - Google Patents
A kind of monopole ultra-wideband antenna based on T-slot Download PDFInfo
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- CN106876960A CN106876960A CN201510943134.1A CN201510943134A CN106876960A CN 106876960 A CN106876960 A CN 106876960A CN 201510943134 A CN201510943134 A CN 201510943134A CN 106876960 A CN106876960 A CN 106876960A
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- wideband antenna
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
A kind of new monopole ultra-wideband antenna based on T-slot, can have preferable working characteristics at 3.1GHz~10.6GHz points in.The antenna is by paster antenna (1) (including radiating element and feeder line), dielectric-slab (2) earth plate (3) T-shaped cutting (4).The present invention increased the bandwidth of antenna using the method for removing two cuttings of triangle plus two rectangles on radiating element, and its return loss can reach -51dB in minimum shop, be arrived under -10 in the range of 1.56GHz~18GHz, by preferable working characteristics.
Description
Technical field
The present invention relates to a kind of monopole ultra-wideband antenna based on T-slot, in the frequency range of 3.1GHz to 10.6GHz
By preferable working characteristics, its return loss has reached -51dB in minimum point, and in the range of 1.56GHz to 18GHz
Return loss is all below -10dB, and its working characteristics is preferable.
Ultra-wideband Communication Technology is widely used in the fields such as radar, positioning, electronic countermeasure and secret communication, for a long time by
Various countries are considered as sophisticated military technology and close protection, just gradually tend to civilian until in recent years.Ultra-wideband Communication Technology system it is excellent
Point can sum up as follows:1. highly concealed type.2. stronger multipath identification capability and the rate of information throughput higher.3. power system capacity is big.
4. penetration capacity is strong, it is easy to accomplish positioning is integrated with communication.5. it is low in energy consumption.
Ultra-wideband antenna is one of key components of super broad band radio communication system, and its design need to consider two aspect contents:
1. realize the ultra wideband transmissions characteristic from 3.1GHz to 10.6GHz (standing-wave ratio is less than 2);2. consider and other narrow bandpass
The mutual interference problem of letter system, will possess the trap function of some narrowband slices while antenna carries out broadband communications.More than being based on
2 points of considerations, occur in that traditional method for designing with trap function ultra-wideband antenna, i.e., by circuit analyses such as effects, in day
Some slotted eyes (such as L-type groove, U-type groove) with specific function are increased on beta radiation unit, to reach required trap purpose.
Background technology
The original form of super-broadband tech [1-3] is impulse wireless communication, is originated from the forties in 20th century, and low side rate etc. of detecing is led to
Used in letter equipment.In recent years, with microelectronic component technology and technique raising, UWB technology starts to be applied to civilian neck
Domain.Ultra-wideband communications are a kind of without carrier wave, and are modulated by the pulse with very steep rising and falling time (generally,
Pulse width is between 0.20-1.5ns) a kind of communication, also referred to as impulse radio (Impulse Radio) time domains (Time Domain)
Or carrierfree (Carrier Free) communication.It has the bandwidth of GHz magnitudes, and because its emitted energy is fairly small, it is thus possible to
A kind of brand-new voice and data communication mode are brought in the case of being not take up present crowded to capacity frequency resource.
After the frequency band of 3.1GHz to 10.6GHz is used by Federal Government developer, ultra-wideband antenna is just received
Greatly concern.Because the data processing speed being exceedingly fast and to eliminating the interference of part multipath effect, ultra-wideband antenna is considered as
One of outlet of following flirtatious communication system.Because composition of the indoor design of ultra-wideband antenna with conflict includes that impedance can not be perfect
Matching, and radiation the size of stability ultra-wideband antenna etc., so ultra-wideband antenna is also subject to during development
Certain limitation.Coplanar wave guide feedback antenna has lot of advantages such as bandwidth very wide, prepares that price is low is easy to and radio station
Frequency is compatible
Before in order to improve the bandwidth of paster antenna by many schemes, such as a relatively thick dielectric-slab is used,
Using the shunt resonators of low conducts constant, multiple parasitic pasters are stacked on main paster, or near the place of main paster
Place multiple pasters, U-shaped cutting, L-type probe, lossy medium etc..The radiation patch of printed antenna has many kinds
Form triangle, rectangle is oval, circular square, also a lot.
The content of the invention
It is an object of the invention to provide a kind of monopole ultra-wideband antenna based on T-slot.As shown in figure 1, the present invention is carried
The ultra-wideband antenna for going out is made up of five parts, paster antenna (1) (including radiating element and feeder line), dielectric-slab (2), has five
Earth plate (3) T-shaped cutting (4) of rectangle cutting.The construction and size of whole ultra-wideband antenna are as shown in Figure 2.
The technical solution adopted by the present invention:
A kind of monopole ultra-wideband antenna based on T-slot, according to claim 1 a kind of monopole based on T-slot
Ultra-wideband antenna, its feature is with antenna (1) is made up of radiating element and feeder line, and its radiating element is carved by above a rectangle
Go out a rectangular channel, superincumbent two horn craving go out two vee gutters and constitute, and the length and width of its rectangular radiation element are respectively
18mm and 15mm, the length of rectangular channel and it is wide be respectively 12mm and 6mm, two length of sides of triangle be respectively 2mm and
0.5mm, two triangles are symmetric, and carve a groove for T-shaped in the middle of radiating element, the center line of groove and dielectric-slab
Center line overlaps.
A kind of monopole ultra-wideband antenna based on T-slot according to claim 1, it is characterised in that in its antenna
Line and dielectric-slab obtain center line coincidence, the whole symmetrical distribution of antenna.
A kind of monopole ultra-wideband antenna based on T-slot according to claim 1, it is characterised in that feeder line is by three
It is grouped into, the length and width of nethermost feeder line are respectively 3mm and 16.8mm, the length of the rectangle feeder line of centre and respectively 8mm wide
And 1.5mm, the length of uppermost feeder line and respectively 12mm and 1.5mm wide.
A kind of new monopole ultra-wideband antenna based on T-slot according to claim 1, it is characterised in that medium base
The dielectric constant of plate is 2.2.
According to claim 1, a kind of monopole ultra-wideband antenna based on T-slot, rises and is characterised by, in earth plate
Occasion is wide to be respectively 16mm and 32mm, three grooves of rectangle is carved on earth plate, the length and width of its both the above angular moment shape
Respectively 1mm and 1mm, above in the middle of rectangle length and it is wide be respectively 2.5mm and 2mm, the structure of its earth plate is also in
It is symmetrical.
The content of the invention will be discussed in detail with reference to the drawings and the specific embodiments hereinafter.
Brief description of the drawings
Fig. 1 is the structural representation of the monopole ultra wide band based on T-slot of the present invention;
Fig. 2 is the sizing specification figure of the new monopole ultra wide band based on T-slot of the present invention;
Fig. 3 is the sizing specification figure of the new monopole ultra wide band earth plate based on T-slot of the invention;
Fig. 4 is the sizing specification figure of monopole ultra wide band T-slot of the present invention based on T-slot;
Symbol description:
1 is paster antenna (comprising radiating element and feeder line), and 2 is dielectric-slab, and 3 is ground plane.4 is the cutting of T-shaped
Specific embodiment
Because the monopole ultra-wideband antenna that the structure is based on T-slot works in microwave frequency band, here will be by microwave transmission
Lineation opinion analyzes its radiation theory.Assuming that the radius of paster antenna triangle radiating element is half wavelength lambda/2, medium substrate
Thickness is L3.So, the Low ESR micro-strip that triangle radiating element, medium substrate and earth plate regard a length of λ/2 as can be passed
Defeated line, and form open circuit in radiating element edge.Again because dielectric substrate thickness is much smaller than wavelength X, thus electric field is along patch
The component of plate plane normal direction is substantially unchanged.In the case where only principal-mode excitation is considered, electromagenetic wave radiation can consider substantially
It is to be caused by the edge at radiating element open circuit position.Can by the electric field of open end be decomposed into along paster plane horizontal component and
Parallel to the vertical component of plane normal, wherein vertical component is cancelled out each other because of opposite in phase, therefore the horizontal component of electric field makes spoke
Penetrate the gap that unit open end is equivalent to cophase detector on infinity plane.So, radiating element to external radiation just it is equivalent into
The radiation in gap.
As shown in Fig. 2 W1, W2, W3, L1, L2, Lx, Wx, Lf, Wf, Lq, L4 be respectively 12mm,
2.5mm, 3mm, 13mm, 6mm, 1.5mm, 8mm, 16.8mm, 32mm, 3mm earth plate copper facing.
Earth plate is configured by following parameter
As shown in figure 3, L3, Wt, Lt are respectively 1mm, 2mm, 2.5mm.The size for changing these cuttings can influence
The bandwidth of antenna.
As shown in figure 4, L5, L6 are respectively 0.5mm, 1mm.Changing these sizes can influence the operating frequency characteristics of antenna.
Claims (5)
1. a kind of monopole ultra-wideband antenna based on T-slot, according to claim 1 a kind of monopole based on T-slot surpass
Broad-band antenna, its feature with, antenna (1) is made up of radiating element and feeder line, its radiating element by a rectangle above
A rectangular channel is carved, superincumbent two horn craving go out two vee gutters and constitute, the length and width of its rectangular radiation element are respectively
It is 18mm and 15mm, the length of rectangular channel and respectively 12mm and 6mm wide, two length of sides of triangle are respectively 2mm
And 0.5mm, two triangles are symmetric, and a groove for T-shaped, the center line of groove and Jie are carved in the middle of radiating element
The center line of scutum overlaps.
2. a kind of monopole ultra-wideband antenna based on T-slot according to claim 1, it is characterised in that the center line of its antenna and
Dielectric-slab obtains center line coincidence, the whole symmetrical distribution of antenna.
3. a kind of monopole ultra-wideband antenna based on T-slot according to claim 1, it is characterised in that feeder line is by three part groups
Into the length and width of nethermost feeder line are respectively 3mm and 16.8mm, the length of the rectangle feeder line of centre and respectively 8mm wide
And 1.5mm, the length of uppermost feeder line and respectively 12mm and 1.5mm wide.
4. a kind of monopole ultra-wideband antenna based on T-slot according to claim 1, it is characterised in that the dielectric of medium substrate
Constant is 2.2.
5. a kind of monopole ultra-wideband antenna based on T-slot according to claim 1, rises and is characterised by, in the occasion of earth plate
Width is respectively 16mm and 32mm, three grooves of rectangle is carved on earth plate, two rectangular channels on its both the above angle
The length of side be respectively 1mm, 1mm, the length of side of middle rectangular channel is respectively 2.5mm, 2mm, the structure of its earth plate
Also it is symmetrical.
Priority Applications (1)
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CN201510943134.1A CN106876960A (en) | 2015-12-14 | 2015-12-14 | A kind of monopole ultra-wideband antenna based on T-slot |
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CN201510943134.1A CN106876960A (en) | 2015-12-14 | 2015-12-14 | A kind of monopole ultra-wideband antenna based on T-slot |
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CN201510943134.1A Pending CN106876960A (en) | 2015-12-14 | 2015-12-14 | A kind of monopole ultra-wideband antenna based on T-slot |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109149095A (en) * | 2018-08-29 | 2019-01-04 | 合肥工业大学 | A kind of antenna of frequency and directional diagram reconstructable based on flexible material |
CN109462030A (en) * | 2018-11-13 | 2019-03-12 | 东华大学 | A kind of novel S-band broad frequency micro-band paster antenna |
CN109616756A (en) * | 2018-11-23 | 2019-04-12 | 西安交通大学 | A kind of ultra wide band array antenna |
WO2023245435A1 (en) * | 2022-06-21 | 2023-12-28 | 京东方科技集团股份有限公司 | Antenna and electronic device |
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US20060290571A1 (en) * | 2005-06-22 | 2006-12-28 | Universal Scientific Industrial Co., Ltd. | Ultra wide bandwidth planar antenna |
CN202333132U (en) * | 2011-11-15 | 2012-07-11 | 中国计量学院 | Multi-level ladder type ultra-wideband coplanar monopole antenna |
CN204375968U (en) * | 2014-12-18 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | A kind of ultra-wideband antenna based on T-slot |
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2015
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Patent Citations (3)
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US20060290571A1 (en) * | 2005-06-22 | 2006-12-28 | Universal Scientific Industrial Co., Ltd. | Ultra wide bandwidth planar antenna |
CN202333132U (en) * | 2011-11-15 | 2012-07-11 | 中国计量学院 | Multi-level ladder type ultra-wideband coplanar monopole antenna |
CN204375968U (en) * | 2014-12-18 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | A kind of ultra-wideband antenna based on T-slot |
Non-Patent Citations (2)
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ALI S ABBAS 等: ""Compact Planar UWB Antenna with Dual Band-Notched Characteristics"", 《2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING》 * |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109149095A (en) * | 2018-08-29 | 2019-01-04 | 合肥工业大学 | A kind of antenna of frequency and directional diagram reconstructable based on flexible material |
CN109149095B (en) * | 2018-08-29 | 2020-07-17 | 合肥工业大学 | Frequency and directional diagram reconfigurable antenna based on flexible material |
CN109462030A (en) * | 2018-11-13 | 2019-03-12 | 东华大学 | A kind of novel S-band broad frequency micro-band paster antenna |
CN109462030B (en) * | 2018-11-13 | 2021-07-16 | 东华大学 | Novel S-band broadband microstrip patch antenna |
CN109616756A (en) * | 2018-11-23 | 2019-04-12 | 西安交通大学 | A kind of ultra wide band array antenna |
WO2023245435A1 (en) * | 2022-06-21 | 2023-12-28 | 京东方科技集团股份有限公司 | Antenna and electronic device |
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Application publication date: 20170620 |