CN106876954A - A kind of new monopole ultra-wideband antenna - Google Patents
A kind of new monopole ultra-wideband antenna Download PDFInfo
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- CN106876954A CN106876954A CN201510943095.5A CN201510943095A CN106876954A CN 106876954 A CN106876954 A CN 106876954A CN 201510943095 A CN201510943095 A CN 201510943095A CN 106876954 A CN106876954 A CN 106876954A
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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
Abstract
A kind of new monopole ultra-wideband antenna, can have preferable working characteristics at 3.1GHz~10.6GHz points in.The antenna is made up of paster antenna (1) (including radiating element and feeder line), dielectric-slab (2) earth plate (3).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 -51 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 new monopole ultra-wideband antenna, 3.1GHz to 10.6GHz frequency range by preferable working characteristics, its return loss has reached -51 in minimum point, and return loss in the range of 1.56GHz to 18GHz, all below -10, its working characteristics is preferable.
Ultra-wideband Communication Technology is widely used in the fields such as radar, positioning, electronic countermeasure and secret communication, is considered as sophisticated military technology and close protection by various countries for a long time, just gradually tends to civilian until in recent years.The advantage of Ultra-wideband Communication Technology system can be summed 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. the mutual interference problem with other narrow-band communication systems is considered, possesses the trap function of some narrowband slices while antenna carries out broadband communications.2 points of considerations based on more than, occur in that traditional method for designing with trap function ultra-wideband antenna, i.e. by Analysis of Equivalent Circuit, some slotted eyes (such as L-type groove, U-type groove) with specific function are increased on antenna 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 detecing uses in the communication equipments such as side rate.In recent years, with microelectronic component technology and technique raising, UWB technology starts to be applied to civil area.Ultra-wideband communications are one kind without carrier wave, and be 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) communicate.It has the bandwidth of GHz magnitudes, and because its emitted energy is fairly small, it is thus possible to bring a kind of brand-new voice and data communication mode in the case where present crowded to capacity frequency resource is not take up.
After the frequency band of 3.1GHz to 10.6GHz is used by Federal Government developer, ultra-wideband antenna just has been a great concern.Because the data processing speed being exceedingly fast and to eliminate part multipath effect interference, 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 can not be matched perfectly including impedance, and the size of stability ultra-wideband antenna for radiating etc., so ultra-wideband antenna also receives certain limitation during development.Coplanar wave guide feedback antenna has lot of advantages such as bandwidth very wide, and preparation price is low to be easy to and frequency of radio station compatibility
Before in order to improve the bandwidth of paster antenna by many schemes, such as use a relatively thick dielectric-slab, use the shunt resonators of low conducts constant, multiple parasitic pasters are stacked on main paster, or placing multiple pasters near the place of main paster, U-shaped cutting, L-type probe, lossy medium etc..The radiation patch of printed antenna has a variety of form triangles, and 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 new monopole ultra-wideband antenna.As shown in figure 1, ultra-wideband antenna proposed by the present invention is made up of three parts, paster antenna (1) (including radiating element and feeder line), dielectric-slab (2), there are five earth plates of rectangle cutting (3).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 new monopole ultra-wideband antenna, a kind of new monopole ultra-wideband antenna according to claim 1, its feature with, antenna (1) is made up of radiating element and feeder line, its radiating element above a rectangle by carving a rectangular channel, superincumbent two horn craving go out two vee gutters and constitute, the length of its rectangular radiation element and respectively 18mm and 15mm wide, the length of rectangular channel and respectively 12mm and 6mm wide, two length of sides of triangle are respectively 2mm and 0.5mm, and two triangles are symmetric.
A kind of new monopole ultra-wideband antenna according to claim 1, it is characterised in that the center line and dielectric-slab of its antenna obtain center line coincidence, the whole symmetrical distribution of antenna.
A kind of new monopole ultra-wideband antenna according to claim 1, it is characterized in that, feeder line is made up of three parts, the length of nethermost feeder line and respectively 3mm and 16.8mm wide, the length of middle rectangle feeder line and respectively 8mm and 1.5mm wide, the length of uppermost feeder line are respectively 12mm and 1.5mm with wide.
The sub- ultra-wideband antenna of a kind of novel unipolar alternate according to claim 1, it is characterised in that the dielectric constant of medium substrate is 2.2.
A kind of new monopole ultra-wideband antenna according to claim 1, rise and be characterised by, in the occasion of earth plate respectively 16mm and 32mm wide, five grooves of rectangle are carved on earth plate, the length of its both the above angular moment shape and respectively 1mm and 1mm wide, middle two length of rectangular channel and it is wide be respectively 2mm and 2mm, 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 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 new monopole ultra-wideband antenna of the present invention；
Fig. 2 is the sizing specification figure of new monopole ultra-wideband antenna of the present invention；
Fig. 3 is the sizing specification figure of the new monopole ultra-wideband antenna earth plate of the invention；
Symbol description：
1 is paster antenna (comprising radiating element and feeder line), and 2 is dielectric-slab, and 3 is ground plane.
Specific embodiment
Because the monopole ultra-wideband antenna works in microwave frequency band, its radiation theory will be analyzed by microwave transmission line theory here.Assuming that the radius of paster antenna triangle radiating element is half wavelength lambda/2, the thickness of medium substrate is L3.So, triangle radiating element, medium substrate and earth plate can be regarded as the Low ESR microstrip transmission line of a length of λ/2, and open circuit is formed in radiating element edge.Again because dielectric substrate thickness is much smaller than wavelength X, thus electric field is substantially unchanged along the component in paster plane normal direction.In the case where only principal-mode excitation is considered, electromagenetic wave radiation may be considered what is caused by the edge at radiating element open circuit position substantially.The electric field of open end can be decomposed into the horizontal component along paster plane and the vertical component parallel to plane normal, wherein vertical component is cancelled out each other because of opposite in phase, therefore the horizontal component of electric field makes radiating element open end be equivalent to the gap of cophase detector on infinity plane.So, radiating element to external radiation just the equivalent radiation into gap.
As shown in Fig. 2 W1, W2, W3, L1, L2, Lx, Wx, Lf, Wf, Lq are respectively 12mm, 2.5mm, 3mm, 13mm, 6mm, 1.5mm, 8mm, 16.8mm, 32mm, earth plate copper facing.
Earth plate is configured by following parameter
As shown in figure 3, L3, L4, Wt, Lt are respectively 2mm, 1mm, 2mm, 2.5mm.Changing the size of these cuttings can influence the bandwidth of antenna.
Claims (5)
1. a kind of new monopole ultra-wideband antenna, according to claim 1 a kind of new monopole ultra-wide
Band antenna, its feature is with antenna (1) is made up of radiating element and feeder line, and its radiating element is by one
A rectangular channel is carved above rectangle, superincumbent two horn craving go out two vee gutters and constitute, its rectangle
The length of radiating element and it is wide be respectively 18mm and 15mm, the length of rectangular channel and it is wide be respectively 12mm and
6mm, two length of sides of triangle are respectively 2mm and 0.5mm, and two triangles are symmetric.
2. a kind of new monopole ultra-wideband antenna according to claim 1, it is characterised in that its antenna
Center line and dielectric-slab obtain center line coincidence, the whole symmetrical distribution of antenna.
3. a kind of new monopole ultra-wideband antenna according to claim 1, it is characterised in that feeder line is by three
Part constitutes, and the length and width of nethermost feeder line are respectively 3mm and 16.8mm, middle rectangle feeder line
Length and it is wide be respectively 8mm and 1.5mm, the length of uppermost feeder line and it is wide be respectively 12mm and
1.5mm。
4. the sub- ultra-wideband antenna of a kind of novel unipolar alternate according to claim 1, it is characterised in that medium substrate
Dielectric constant is 2.2.
5. a kind of new monopole ultra-wideband antenna according to claim 1, rises and is characterised by, in earth plate
Occasion it is wide be respectively 16mm and 32mm, five grooves of rectangle are carved on earth plate, its above two
The length of individual angular moment shape and respectively 1mm and 1mm wide, the length and width of two rectangular channels of centre are respectively
2mm and 2mm, above in the middle of rectangle length and it is wide be respectively 2.5mm and 2mm, its earth plate
Structure is also symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943095.5A CN106876954A (en) | 2015-12-14 | 2015-12-14 | A kind of new monopole ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943095.5A CN106876954A (en) | 2015-12-14 | 2015-12-14 | A kind of new monopole ultra-wideband antenna |
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| Publication Number | Publication Date |
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| CN106876954A true CN106876954A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510943095.5A Pending CN106876954A (en) | 2015-12-14 | 2015-12-14 | A kind of new monopole ultra-wideband antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004354A (en) * | 2018-08-07 | 2018-12-14 | 中国计量大学 | A kind of band folding buttock line p-shaped structural antenna |
| CN113206377A (en) * | 2021-05-06 | 2021-08-03 | 安徽大学 | Four-trapped-wave flexible wearable ultra-wideband antenna fed by coplanar waveguide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-12-14 CN CN201510943095.5A patent/CN106876954A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 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》 * |
| ANIL KAMMA 等: ""Printed Band-notched U shaped Ultra Wide Band Antenna with Modified Split Ring Resonator"", 《2012 IEEE ASIA-PACIFIC CONFERENCE ON ANTENNAS AND PROPAGATION》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004354A (en) * | 2018-08-07 | 2018-12-14 | 中国计量大学 | A kind of band folding buttock line p-shaped structural antenna |
| CN113206377A (en) * | 2021-05-06 | 2021-08-03 | 安徽大学 | Four-trapped-wave flexible wearable ultra-wideband antenna fed by coplanar waveguide |
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Application publication date: 20170620 |
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