CN103700937B - There is the ultra wideband omni-directional radiation printed antenna of band-stop response - Google Patents
There is the ultra wideband omni-directional radiation printed antenna of band-stop response Download PDFInfo
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- CN103700937B CN103700937B CN201410010197.7A CN201410010197A CN103700937B CN 103700937 B CN103700937 B CN 103700937B CN 201410010197 A CN201410010197 A CN 201410010197A CN 103700937 B CN103700937 B CN 103700937B
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Abstract
Have the ultra wideband omni-directional radiation printed antenna of band-stop response, it relates to a kind of printed antenna of ultra wideband omni-directional radiation, is specifically related to a kind of ultra wideband omni-directional radiation printed antenna with band-stop response.The interference that the present invention needs external band stop filter just can avoid WLAN (wireless local area network) to solve existing ultra-wideband antenna, and the problem that antenna volume is larger.The present invention includes the first metal floor, the second metal floor, radiating element, metal micro-strip line and dielectric-slab, metal micro-strip line is vertically printed on the positive basifacial of dielectric-slab, and the lower end of metal micro-strip line contacts with the base in dielectric-slab front, radiating element is semicircle, radiating element is printed on the bottom in dielectric-slab front, first metal floor and the second metal floor line symmetry centered by metal micro-strip line is printed on the front of dielectric-slab, the bottom of the first metal floor is provided with first font gap, and the bottom of the second metal floor is provided with second font gap.The present invention is used for radio communication field.
Description
Technical field
The present invention relates to a kind of printed antenna of ultra wideband omni-directional radiation, be specifically related to a kind of ultra wideband omni-directional radiation printed antenna with band-stop response, belong to radio communication field.
Background technology
In 2002, the spectral range that Federal Communications Committee (FCC) have approved the ultra-wideband communications of commercial use was first 3.1GHz ~ 10.6GHz.The Antenna Design of radio ultra wide band system becomes a very popular direction.Ultra-wideband antenna can provide short-range nothing to postpone high rate communication and other are applied and power consumption is lower.Ultra-wideband antenna has plurality of advantages, and such as structure is simple, high data rate, and cost is low and be easy to processing.Traditional ultra-wideband antenna is the stereochemical structure that a circular-shaped monopole sub antenna and a perpendicular metal floor are formed, this kind of ultra-wideband antenna due to its solid structure and general size is difficult to radio ultra wide band system more greatly integrated.Therefore, the ultra-wideband printed antenna of plane is suggested, and this kind of antenna is easy to microwave circuit integrated due to its planar structure, and can realize miniaturization by optimizing antenna pattern.Simultaneously, spectral range due to ultra-wideband communications covers the spectral range (5.15GHz ~ 5.815GHz) of WLAN (wireless local area network), therefore ultra-wideband communications can cause interference to WLAN (wireless local area network), in order to avoid this interference, ultra-wideband communication system usually needs to add band stop filter again, it is more complicated that this makes ultra-wideband communication system become, and the stability of a system also can reduce.
Summary of the invention
The present invention solves the interference that existing ultra-wideband antenna needs external band stop filter just can avoid WLAN (wireless local area network), and the problem that antenna volume is larger, and then the ultra wideband omni-directional radiation printed antenna with band-stop response is proposed.
The present invention is the technical scheme taked that solves the problem: the present invention includes the first metal floor, second metal floor, radiating element, metal micro-strip line and dielectric-slab, metal micro-strip line is vertically printed on the positive basifacial of dielectric-slab, and the lower end of metal micro-strip line contacts with the base in dielectric-slab front, radiating element is semicircle, radiating element is printed on the bottom in dielectric-slab front, and the upper end of the Qu Bianyu metal micro-strip line of radiating element connects, first metal floor and the second metal floor line symmetry centered by metal micro-strip line is printed on the front of dielectric-slab, the bottom of the first metal floor is provided with first font gap, the bottom of the second metal floor is provided with second font gap.
The invention has the beneficial effects as follows: the ultra wideband omni-directional radiation printed antenna with band-stop response of the present invention is planar structure, compared to traditional three-dimensional ultra-wideband antenna, more easily and ultra-wideband communication system integrated; Antenna of the present invention achieves the wide 5.05GHz ~ 5.84GHz of band stopband by plucking out first gap, font gap and second font gap on ground, effectively shields the impact on WLAN (wireless local area network); Antenna of the present invention is by the structure of circular arc and rectigradation, and effectively increase ground board size, the ultra-wideband printed antenna size making this antenna more traditional is little by 70% ~ 75%, achieves miniaturization.
Accompanying drawing explanation
Fig. 1 is front view of the present invention, Fig. 2 is the standing-wave ratio figure of antenna at 2GHz ~ 12GHz, wherein VoltageStandingWaveRatio represents standing-wave ratio, Fig. 3 is that antenna is in 3GHz ~ 12GHz gain change graph, wherein Gain represents gain, theta represents Vertical Square parallactic angle, phi represents horizontal azimuth, Value represents amplitude, Frequency represents frequency, Fig. 4 is that antenna is at 3.3GHzE face directional diagram, wherein GainAbs represents antenna gain amplitude, farfield represents far field, Mainlobemagnitude represents the directivity value of main lobe, Mainlobedirection represents main lobe direction width, Angularwidth represents 3dB beam angle, phi/Degreevs.dB represents horizontal azimuth (representing by dB value), Fig. 5 is that antenna is at 5.5GHzE face directional diagram, Fig. 6 is that antenna is at 10.6GHzE face directional diagram, wherein Sidelobelevel represents secondary lobe drop-out value, Fig. 7 is that antenna is at 3.3GHzH face directional diagram, Fig. 8 is that antenna is at 5.5GHzH face directional diagram, Fig. 9 is that antenna is at 10.6GHzE face directional diagram.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, the ultra wideband omni-directional radiation printed antenna described in present embodiment with band-stop response comprises the first metal floor 1, second metal floor 2, radiating element 3, metal micro-strip line 4 and dielectric-slab 7, metal micro-strip line 4 is vertically printed on the positive basifacial of dielectric-slab 7, and the lower end of metal micro-strip line 4 contacts with the base in dielectric-slab 7 front, radiating element 3 is semicircle, radiating element 3 is printed on the bottom in dielectric-slab 7 front, and the upper end of the Qu Bianyu metal micro-strip line 4 of radiating element 3 connects, first metal floor 1 and the second metal floor 2 line symmetry centered by metal micro-strip line 4 is printed on the front of dielectric-slab 7, the bottom of the first metal floor 1 is provided with first font gap 5, the bottom of the second metal floor 2 is provided with second font gap 6.
The polytetrafluoroethylene of present embodiment intermediary scutum 7 to be fire resistance ratings be FR-4 makes.
In present embodiment, the first metal floor 1, second metal floor 2, metal micro-strip line 4 form coplanar wave guide feedback structure, and this feed structure has wider impedance bandwidth and less reflection loss compared to traditional feed microstrip line.Floor adopts the structure of straight line and arc transition simultaneously, makes full use of radiating element 3 surrounding space and increases floor area, reach and realize miniaturized object.
Embodiment two: composition graphs 1 illustrates present embodiment, first metal floor 1 described in present embodiment with the ultra wideband omni-directional radiation printed antenna of band-stop response is identical with the second metal floor 2 structure, by first vertical edge 1-1, first arc-shaped edges 1-2, second arc-shaped edges 1-3, three-arc limit 1-4, four arc-shaped edges 1-5, first horizontal edge 1-6, six arc-shaped edges 1-7 and second vertical edge 1-8 head and the tail successively rounding off connected to form corresponding with the second metal floor 2 of the first metal floor 1.
The technique effect of present embodiment is: so arrange, first antenna is made to have symmetrical structure, the far-field pattern of antenna can not be distorted, secondly multi-section circular arc and straight transitions structure is adopted, the distance that surface current on the metal floor of this circular arc and straight transitions is walked is longer, make antenna at lower operate on frequencies, the ultra broadband characteristic of antenna can be realized.Other composition and annexation identical with embodiment one.
Embodiment three: composition graphs 1 illustrates present embodiment, the thickness described in present embodiment with the dielectric-slab 7 of the ultra wideband omni-directional radiation printed antenna of band-stop response is 1.5mm, and the relative dielectric constant of dielectric-slab 7 is 4.4.
The technique effect of present embodiment is: so arrange, this dielectric-slab be FR-4 epoxy plate, the material of dielectric-slab is polytetrafluoroethylene, the thickness of this dielectric-slab and relative dielectric constant are regulations, and the cost of this dielectric-slab is very low, the antenna utilizing the design of this dielectric-slab to invent can make the cost of manufacture of this antenna greatly reduce.Other composition and annexation identical with embodiment one.
Embodiment four: composition graphs 1 illustrates present embodiment, have the first metal floor 1 of the ultra wideband omni-directional radiation printed antenna of band-stop response and the first vertical edge 1-1 place of the second metal floor 2 described in present embodiment, the first metal floor 1 is identical with the diameter of radiating element 3 with the width in second metal floor 2 gaps.
The technique effect of present embodiment is: so arrange, and makes the level of impedance match of this antenna reach optimum, this antenna is reached and is less than 2 at applicable frequency range standing internal wave ratio, reach the index request of ultra-wideband communications to antenna standing wave ratio.Other composition and annexation identical with embodiment one.
Can be found out by Fig. 2 to Fig. 9: at 3.1GHz ~ 11.9GHz standing internal wave than VSWR < 2, band stopband is wide is 5.05GHz ~ 5.84GHz, stablize at the directional diagram of 3.1GHz ~ 11.9GHz internal antenna, very low in 5.05GHz ~ 5.84GHz gain, illustrate in this frequency range internal antenna radiation hardly, achieve the resistive energy of band.
Claims (3)
1. there is the ultra wideband omni-directional radiation printed antenna of band-stop response, it is characterized in that: it comprises the first metal floor (1), second metal floor (2), radiating element (3), metal micro-strip line (4) and dielectric-slab (7), metal micro-strip line (4) is vertically printed on the positive basifacial of dielectric-slab (7), and the lower end of metal micro-strip line (4) contacts with the base in dielectric-slab (7) front, radiating element (3) is semicircle, radiating element (3) is printed on the bottom in dielectric-slab (7) front, and the upper end of the Qu Bianyu metal micro-strip line (4) of radiating element (3) connects, first metal floor (1) and the second metal floor (2) line symmetry centered by metal micro-strip line (4) is printed on the front of dielectric-slab (7), the bottom of the first metal floor (1) is provided with first font gap (5), the bottom of the second metal floor (2) is provided with second font gap (6), it is characterized in that: the first metal floor (1) is identical with the second metal floor (2) structure, first metal floor (1) corresponding with the second metal floor (2) while by the first vertical edge (1-1), first arc-shaped edges (1-2), second arc-shaped edges (1-3), three-arc limit (1-4), 4th arc-shaped edges (1-5), first horizontal edge (1-6), 6th arc-shaped edges (1-7) and the second vertical edge (1-8) head and the tail successively rounding off connect to form.
2. have the ultra wideband omni-directional radiation printed antenna of band-stop response according to claim 1, it is characterized in that: the thickness of dielectric-slab (7) is 1.5mm, the relative dielectric constant of dielectric-slab (7) is 4.4.
3. there is the ultra wideband omni-directional radiation printed antenna of band-stop response according to claim 1, it is characterized in that: at the first vertical edge (1-1) place, between the first metal floor (1) with the second metal floor (2), the width in gap is identical with the diameter of radiating element (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410010197.7A CN103700937B (en) | 2014-01-09 | 2014-01-09 | There is the ultra wideband omni-directional radiation printed antenna of band-stop response |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410010197.7A CN103700937B (en) | 2014-01-09 | 2014-01-09 | There is the ultra wideband omni-directional radiation printed antenna of band-stop response |
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| Publication Number | Publication Date |
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| CN103700937A CN103700937A (en) | 2014-04-02 |
| CN103700937B true CN103700937B (en) | 2015-12-30 |
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| CN201410010197.7A Active CN103700937B (en) | 2014-01-09 | 2014-01-09 | There is the ultra wideband omni-directional radiation printed antenna of band-stop response |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061442B1 (en) * | 2005-02-05 | 2006-06-13 | Industrial Technology Research Institute | Ultra-wideband antenna |
| CN101752665A (en) * | 2010-01-21 | 2010-06-23 | 上海大学 | UWB (ultra wide band) antenna with band-stop characteristic |
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2014
- 2014-01-09 CN CN201410010197.7A patent/CN103700937B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061442B1 (en) * | 2005-02-05 | 2006-06-13 | Industrial Technology Research Institute | Ultra-wideband antenna |
| CN101752665A (en) * | 2010-01-21 | 2010-06-23 | 上海大学 | UWB (ultra wide band) antenna with band-stop characteristic |
Non-Patent Citations (1)
| Title |
|---|
| Design of a compact semi-elliptic monopole slot antenna for UWB system;M. Gopikrishna等;《IEEE Transactions on antennas and propagation》;20090630;第57卷(第6期);第1834-1837页 * |
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| CN103700937A (en) | 2014-04-02 |
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