CN105977627A - Asymmetric coplanar feed F-shaped monopole antenna - Google Patents
Asymmetric coplanar feed F-shaped monopole antenna Download PDFInfo
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- CN105977627A CN105977627A CN201610407235.1A CN201610407235A CN105977627A CN 105977627 A CN105977627 A CN 105977627A CN 201610407235 A CN201610407235 A CN 201610407235A CN 105977627 A CN105977627 A CN 105977627A
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- antenna
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- ground plane
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- dielectric
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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Abstract
The invention belongs to the field of wireless communication, and particularly discloses an asymmetric coplanar feed F-shaped monopole antenna which can be applied to a GPS and a WLAN/WiMAX. The asymmetric coplanar feed F-shaped monopole antenna comprises a dielectric plate, a ground plane and an F-shaped patch, wherein the F-shaped patch, the ground plane and an asymmetric coplanar feeder are printed on a board of the dielectric plate; an inverted L-shaped slot is arranged in the top part of the F-shaped patch; two rectangular slots are arranged in the ground plane; and the F-shaped patch, the ground plane and the asymmetric coplanar feeder are located on the same surface of the dielectric plate. The cost and the manufacturing complexity can be reduced by a simple structure and a small size. Meanwhile, the radiation direction is omnidirectional radiation, and the asymmetric coplanar feed F-shaped monopole antenna has good gain, can simultaneously work at a GPS/WLAN/WiMAX band and has wide application value in engineering.
Description
Technical field
The invention belongs to wireless communication field, refer in particular to a kind of can be applicable in GPS, WLAN/WiMAX asymmetric common
The F shape monopole antenna of face feed.
Background technology
Along with developing rapidly and the portable equipment such as computer technology, smart mobile phone, notebook computer, flat board of radio communication
Computer, almost becomes vital part in our daily life.For such product, except basic feature such as chi
Very little compact, beautiful outward appearance, easy and simple to handle, by more concerns, whether it can support that various wireless communication consensus standard is as complete to user
Ball alignment system (GPS), WLAN (WLAN), worldwide interoperability for microwave access technology (WiMAX) etc..Therefore one is designed
The multiband antenna supporting various communication standard brings new challenge and opportunity to Antenna Design teacher.
Summary of the invention
For solving problem above, the invention provides the asymmetric coplanar fed monopole of a kind of simple in construction, compact dimensions
Sub antenna can meet the communication requirement of many frequency ranges of GPS, WLAN and WiMAX simultaneously.
The F shape monopole antenna of a kind of asymmetric coplanar feed, described antenna includes dielectric-slab, ground plane, F type paster；
F shape paster, ground plane, and asymmetric coplanar feeder line it is printed with on dielectric-slab plate face；F shape paster top is provided with Γ shape gap (F
The Γ shape slotted eye dug out on shape monopole antenna), two rectangular apertures that ground plane is provided with, described F shape paster, ground plane,
And asymmetric coplanar feeder line is positioned at the same face of dielectric-slab.
Described Γ shape gap as the main radiating element of described antenna, 3 gaps including being from left to right sequentially communicated:
Gap S1, gap S2, gap S3；The size of gap S1 is 10 × 2mm2, the size of gap S2 is 11.5 × 1mm2, gap S3's
A size of 7 × 0.5mm2。
Γ shape slot excitation goes out tri-communications bands of 1.58GHz, 2.45GHz, 3.08GHZ and 5.38GHz.
Described dielectric-slab is FR4 substrate, and dielectric constant is 4.3.The a length of 40mm of described dielectric-slab, described dielectric-slab
Width is 20mm, and the thickness of described dielectric-slab is 1.6mm.
Preferably said two rectangular aperture is positioned at the two ends of ground plane.Main as described antenna of described Γ shape gap
Radiating element.
The size of preferred described ground plane is 6 × 17mm2.Two rectangular apertures on ground plane are equivalently-sized is 2
×4mm2。
The characteristic impedance of preferred described asymmetric coplanar feeder line is 50 ohm, and the width of described asymmetric coplanar feeder line is
2.5mm, described asymmetric coplanar feeder line distance side ground level 0.5mm.The Main Function of described asymmetric coplanar feeder line is to use
In the radiating element of the described antenna of excitation, i.e. Γ shape gap.
The monopole slot antenna that this patent is proposed is produced on the FR4 dielectric-slab that 1.6mm is thick, its relative dielectric constant
It is 4.3.The one side of dielectric-slab is provided with in F shape the Γ shape gap dug out, and this is the main radiating element of inventive antenna.Dielectric-slab
It is provided with the asymmetric coplanar feeder line of 50 ohm, for encouraging the radiating element of this antenna.
Inventive antenna goes out 1.58GHz, 2.45GHz, 3.08GHZ and 5.38GHz tri-by Γ shape slot excitation and communicates
Frequency range, can be completely covered 1.575-GHZ GPS, 2.4/5.2/5.8-GHz WLAN and 2.5/3.5/5.5-GHz WiMAX work
Make the standard of frequency range, and there is good radiation characteristic.Owing to the two gap is operated in the mode of resonance of λ/4 so that this
Line can meet the design requirement of simple in construction, compact dimensions tomorrow.Inventive antenna is produced on 40 × 20mm2Dielectric-slab
On, various miniaturization terminating machine can be integrated in easily.
Compared with prior art, size is reduced by inventive antenna well further, simple structure and small-sized chi
The very little complexity that can reduce cost and reduce manufacture.Meanwhile, its radiation direction is omnidirectional radiation, has good increasing
Benefit, can be operated in GPS/WLAN/WiMAX frequency range simultaneously, have the most wide using value in engineering.
Accompanying drawing explanation
Fig. 1 is inventive antenna top structure schematic diagram.
Fig. 2 is inventive antenna top structure dimensional drawing (a is structure chart, and b is Γ gap size figure, unit: mm)；
Fig. 3 is inventive antenna pictorial diagram (the next dip stick).
Fig. 4 is the Surface current distribution figure of inventive antenna；
Four working frequency range: (a) is 1.575GHZ, (b) is 2.5GHz, and (c) is 3.5GHz, and (d) is table during 5.5GHz
Surface current scattergram, in the antenna surface CURRENT DISTRIBUTION of 1.575GHz it can clearly be seen that CURRENT DISTRIBUTION is mainly in Γ shape gap
Around, and antenna surface electric current is mainly distributed on around S2 and S3 at 2.5GHz, and antenna surface electric current mainly divides at 3.5GHz
It is distributed in the latter half of the S2 of Γ shape and S3 and antenna surface electric current is distributed in S3 at 5.5GHz.
Fig. 5 is the return loss of inventive antenna.
Fig. 6 is the antenna pattern of inventive antenna, and (a)～(d) respectively show inventive antenna at 1.575GHZ,
Actual measurement at 2.5GHz, 3.5GHz and 5.5GHz and the antenna pattern emulated.
Fig. 7 is inventive antenna gain diagram.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
A kind of asymmetric coplanar Monopole Antenna Fed, described antenna includes dielectric-slab 1, and ground plane 2, on dielectric-slab 1
The F shape paster 3 of printing, F shape paster 3 is provided with Γ shape gap 4 (the Γ shape slotted eye dug out on F shape paster 3), and on ground plane 2
Two rectangular apertures 5 dug out, and asymmetric coplanar feeder line 6, described F shape paster 3, ground plane 2, and asymmetric coplanar feedback
Line 6 is positioned at the same face of dielectric-slab 1.
The present invention relates to a kind of asymmetric coplanar Monopole Antenna Fed, this antenna is produced on the FR4 that dielectric constant is 4.3
On dielectric-slab, its thickness is 1.6mm, and its size is 40 × 20mm2。
Refer to shown in Fig. 1, inventive antenna front by the Γ shape gap on medium side, ground plane and on ground plane
Two rectangular aperture (slotted eye) compositions dug out, this Γ shape gap slotted eye is the main radiating element of this antenna.Γ shape gap
Aperture slots, is positioned at the top half of whole antenna.
Γ shape gap is 2mm with the distance of dielectric-slab upper edge, and it is made up of 3 gaps being sequentially connected with, and they are seams
Gap S1, gap S2, gap S3, as shown in Figure 2.The size of gap S1 is 10 × 2mm2, the size of gap S2 is 11.5 × 1mm2,
The size of gap S3 is 7 × 0.5mm2.Two rectangular apertures on ground plane are equivalently-sized is 2 × 4mm2, as shown in Figure 2.
Referring to shown in Fig. 2 a, inventive antenna lower left position is provided with the asymmetric coplanar feeder line of 50 ohm, is used for encouraging
The curve gap radiation unit of antenna face.Its a length of 7mm, a width of 2.5mm；With the distance of Horizon panel left hand edge it is
0.5mm。
Antenna geometric parameter as described above, is processed the monopole slot antenna that the present invention relates to and has been surveyed
Examination.Next the processing photo in kind of antenna as it is shown on figure 3, will provide the return loss of antenna, CURRENT DISTRIBUTION, radiation direction
Figure and the emulation of gain, measured result.Result of calculation is obtained by CST transient state solver, and experimental data is by Agilent 8720ET
Vector network analyzer records.
(1) return loss
Emulation and actual measurement return loss Comparative result as it is shown in figure 5, from emulation and actual measurement return loss result figure can
To find out that inventive antenna is successfully energized out three kinds of modes of resonance.Inventive antenna obtains one relatively at 1.58GHz
Narrow impedance bandwidth (1.54-1.61GHz), obtain at high band three wider impedance bandwidths (2.31-2.7GHZ2,
3.10-3.75GHz,5.03-5.95GHZ).It can cover simultaneously 1.575-GHZ GPS, 2.4/5.2/5.8-GHz WLAN and
2.5/3.5/5.5-GHz WiMAX working frequency range.The dielectric constant that deviation between emulation and actual measurement is probably by dielectric-slab is inclined
Difference and the impact of mismachining tolerance, but on the whole, measured result is more consistent with simulation result.
(2) CURRENT DISTRIBUTION
Inventive antenna is respectively at four working frequency range 1.575GHZ (Fig. 4 a), 2.5GHz (Fig. 4 b), 3.5GHz (Fig. 4 c)
With Surface current distribution figure time 5.5GHz (Fig. 4 d) as shown in Figure 4, it can be observed that the mode of resonance in these frequency ranges be by
Different current paths independently excites.In the antenna surface CURRENT DISTRIBUTION of 1.575GHz it can clearly be seen that CURRENT DISTRIBUTION master
Will be around Γ shape gap, and antenna surface electric current is mainly distributed on around S2 and S3 at 2.5GHz, and antenna surface electric current exists
3.5GHz is distributed mainly on the latter half of the S2 of Γ shape and S3 and antenna surface electric current is distributed in S3 at 5.5GHz.
(3) antenna pattern
Fig. 6 (a)～(d) illustrate inventive antenna actual measurement at 1.575GHZ, 2.5GHz, 3.5GHz and 5.5GHz with
The antenna pattern of emulation, it can be seen that the emulation of antenna pattern and measured result keep fine in rational range of error
Concordance.Thus figure understands, and the antenna pattern in all frequency band Y-Z faces is all in omni-directional.
(5) antenna gain
Inventive antenna peak gain from 1GHz to 6GHz as it is shown in fig. 7, antenna is four frequency ranges 1.575GHZ,
The gain of 2.5GHz, 3.5GHz and 5.5GHz, between 0.26-3.50dBi, can well meet most of GPS/WLAN/
The application request of WiMAX.
Claims (7)
1. a F shape monopole antenna for asymmetric coplanar feed, described antenna includes dielectric-slab, ground plane, F type paster；
It is characterized in that, dielectric-slab plate face is printed with F shape paster, ground plane, and asymmetric coplanar feeder line；F shape paster top
Portion is provided with Γ shape gap, two rectangular apertures that ground plane is provided with, described F shape paster, ground plane, and asymmetric coplanar feedback
Line is positioned at the same face of dielectric-slab.
Antenna the most according to claim 1, it is characterised in that: described Γ shape gap is single as the main radiation of described antenna
Unit, 3 gaps including being from left to right sequentially communicated: gap S1, gap S2, gap S3；Γ shape slot excitation goes out 1.58GHz,
Tri-communications bands of 2.45GHz, 3.08GHZ and 5.38GHz.
Antenna the most according to claim 1, it is characterised in that: the size of gap S1 is 10 × 2mm2, the size of gap S2 is
11.5×1mm2, the size of gap S3 is 7 × 0.5mm2。
Antenna the most according to claim 1, it is characterised in that: described dielectric-slab is FR4 substrate, dielectric-slab a length of
40mm, the width of dielectric-slab is 20mm, and the thickness of dielectric-slab is 1.6mm.
Antenna the most according to claim 1, it is characterised in that: two rectangular apertures are positioned at the two ends of ground plane.
Antenna the most according to claim 1, it is characterised in that: the size of described ground plane is 6 × 17mm2Open on ground plane
Two the rectangular aperture sizes gone out are 2 × 4mm2。
Antenna the most according to claim 1, it is characterised in that: described asymmetric coplanar feeder line Main Function is for encouraging
Γ shape gap, its characteristic impedance is 50 ohm, and the width of described asymmetric coplanar feeder line is 2.5mm, described asymmetric coplanar feedback
Linear distance side ground level 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610407235.1A CN105977627B (en) | 2016-06-08 | 2016-06-08 | A kind of F shape monopole antenna of asymmetric coplanar feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610407235.1A CN105977627B (en) | 2016-06-08 | 2016-06-08 | A kind of F shape monopole antenna of asymmetric coplanar feed |
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| Publication Number | Publication Date |
|---|---|
| CN105977627A true CN105977627A (en) | 2016-09-28 |
| CN105977627B CN105977627B (en) | 2018-12-25 |
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| CN201610407235.1A Active CN105977627B (en) | 2016-06-08 | 2016-06-08 | A kind of F shape monopole antenna of asymmetric coplanar feed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061359A (en) * | 2018-12-24 | 2019-07-26 | 云南大学 | Two-band planar tooth left-handed material unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW545708U (en) * | 2002-10-23 | 2003-08-01 | Quanta Comp Inc | Multi-band mobile phone antenna |
| CN103490154A (en) * | 2013-09-24 | 2014-01-01 | 西安电子科技大学 | Miniaturization tri-band printed antenna based on double-edge resonator loading |
| CN203466290U (en) * | 2013-09-04 | 2014-03-05 | 河北烽联信息技术有限公司 | Micro double-frequency antenna |
| CN103633443A (en) * | 2013-08-13 | 2014-03-12 | 北京航空航天大学 | Multi-band miniaturized planar monopole antenna |
| CN105098336A (en) * | 2015-09-14 | 2015-11-25 | 重庆大学 | Miniature multi-band antenna based on asymmetrical coplanar feeding |
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2016
- 2016-06-08 CN CN201610407235.1A patent/CN105977627B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW545708U (en) * | 2002-10-23 | 2003-08-01 | Quanta Comp Inc | Multi-band mobile phone antenna |
| CN103633443A (en) * | 2013-08-13 | 2014-03-12 | 北京航空航天大学 | Multi-band miniaturized planar monopole antenna |
| CN203466290U (en) * | 2013-09-04 | 2014-03-05 | 河北烽联信息技术有限公司 | Micro double-frequency antenna |
| CN103490154A (en) * | 2013-09-24 | 2014-01-01 | 西安电子科技大学 | Miniaturization tri-band printed antenna based on double-edge resonator loading |
| CN105098336A (en) * | 2015-09-14 | 2015-11-25 | 重庆大学 | Miniature multi-band antenna based on asymmetrical coplanar feeding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061359A (en) * | 2018-12-24 | 2019-07-26 | 云南大学 | Two-band planar tooth left-handed material unit |
| CN110061359B (en) * | 2018-12-24 | 2023-11-21 | 云南大学 | Double-frequency band plane tooth-shaped left-handed material unit |
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| Publication number | Publication date |
|---|---|
| CN105977627B (en) | 2018-12-25 |
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Effective date of registration: 20191226 Address after: 314413 No.2, Fengshou Avenue, Haining Economic and knitting industrial park, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Haining Warp Knitting Industrial Park Development Co., Ltd Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park is 18 street. Patentee before: Zhejiang Gongshang University |