CN104953273B - One kind miniaturization coplanar wave guide feedback ultra-wideband antenna - Google Patents
One kind miniaturization coplanar wave guide feedback ultra-wideband antenna Download PDFInfo
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Abstract
Coplanar wave guide feedback ultra-wideband antenna is minimized the present invention relates to one kind, belongs to wireless communication technology field.Including：Dielectric constant is 4.6 rectangle FR4 dielectric-slabs, the first " ladder " shape microstrip structure, the second " ladder " shape microstrip structure, " diplopore bridge " shape microstrip structure, " moon " shaped microstrip structure, rectangular microstrip structure, rectangular microstrip feeder line, the first " circular arc slope " shape microstrip structure and second " circular arc slope " shape microstrip structure；Wherein, first " ladder " shape microstrip structure, the second " ladder " shape microstrip structure, " diplopore bridge " shape microstrip structure, " moon " shaped microstrip structure and rectangular microstrip structure composition have the radiation patch of smaller part circular groove, more than half circular groove and rectangular channel, first and second " circular arc slope " shape microstrip structures constitute coplanar ground structure, have gap to form co-planar waveguide with microstrip feed line.Simple in construction, compact dimensions of the invention, cost is low, precision is high, bandwidth, radiation characteristic are good, easy of integration, it is adaptable to compact portable ultra wide band terminal device.
Description
Technical field
Coplanar wave guide feedback ultra-wideband antenna is minimized the present invention relates to one kind, belongs to wireless communication technology field.
Background technology
Ultra wide band (Ultra-wideband, UWB) technology be a kind of new short distance high-speed for receiving much concern at present without
Line communication technology.Since FCC by 3.1GHz-10.6GHz frequency ranges be divided into radio ultra wide band system frequency range with
Come, industrial quarters and academia have carried out substantial amounts of research work in Ultra-Wide Band Radio field.It is used as ultra wide band system
One important component of system, ultra-wideband antenna is in wideband impedance match, stable antenna pattern, miniaturization and low cost
Aspect has attracted extensive research.
At present, a large amount of plane UWB microstrip antennas are suggested, and they can cover greatly 3.1GHz-10.6GHz UWB
Frequency range, and with preferable radiation characteristic.However, many UWB antennas still have oversized, structure it is excessively complicated ,-
The shortcomings of 10dB impedance bandwidths partially narrow (being only capable of covering 3.1GHz-10.6GHz frequency ranges reluctantly or just).Accordingly, it would be desirable to design chi
It is very little small, simple in construction, the UWB microstrip antennas of bandwidth of operation wider (as much as possible more than 7.5GHz).
A kind of miniaturization coplanar wave guide feedback ultra-wideband antenna that the present invention is designed, by literature search, has no and the present invention
Identical discloses report.
The content of the invention
It is an object of the invention to overcome the deficiency of prior art, a kind of miniaturization coplanar wave guide feedback ultra wide band is designed
Antenna.
A kind of miniaturization coplanar wave guide feedback ultra-wideband antenna in the present invention is made up of following seven part：Dielectric-slab (1),
First " ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure (4), " moon " shape
Microstrip structure (5), rectangular microstrip structure (6), rectangular microstrip feeder line (7), first " circular arc slope " shape microstrip structure (8) and second
" circular arc slope " shape microstrip structure (9), wherein：
A. dielectric-slab (1) be cuboid, use dielectric constant for 4.6 and loss angle tangent be 0.02 FR4 dielectric materials,
Its size is 20mm*15mm*1.6mm；
B. the first " ladder " shape microstrip structure (2) is identical with second " ladder " shape microstrip structure (3) size, relative to medium
The plate longitudinal axis is symmetrical；
C. " diplopore bridge " shape microstrip structure (4) is by with being lost on " moon " shaped microstrip structure (5) identical microband paste
What quarter smaller part circular groove (10) and more than half circular groove (11) were obtained；
D. the first " circular arc slope " shape microstrip structure (8) is by etching the first a quarter circular groove respectively on rectangular patch
(13), first level direction rectangular channel (15) and the rectangular channel of vertical direction first (17) are obtained, the first a quarter circular groove
(13) it is located at the left side of the first " circular arc slope " shape microstrip structure (8), first level direction rectangular channel (15) is located at the first " circular arc
The right upper portion of slope " shape microstrip structure (8), the rectangular channel of vertical direction first (17) is located at first " circular arc slope " shape microstrip structure
(8) right side and positioned at the bottom of first level direction rectangular channel (15), the second " circular arc slope " shape microstrip structure (9) be by
The second a quarter circular groove (14), the second horizontal direction rectangular channel (16) and the square of vertical direction second are etched on rectangular patch respectively
Shape groove (18) is obtained, and first " circular arc slope " shape microstrip structure (8) and second " circular arc slope " shape microstrip structure (9) size phase
Together, the second a quarter circular groove (14) and the first a quarter circular groove (13) are symmetrical relative to the dielectric-slab longitudinal axis, the second water
Square, vertical direction second symmetrical relative to the dielectric-slab longitudinal axis to rectangular channel (16) and first level direction rectangular channel (15)
Rectangular channel (18) and the rectangular channel of vertical direction first (17) are symmetrical relative to the dielectric-slab longitudinal axis.
First " ladder " the shape microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape micro-strip knot
Structure (4), " moon " shaped microstrip structure (5), rectangular microstrip structure (6) constitute the radiation patch of UWB antennas；Described first " ladder " shape
Microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure (4), " moon " shaped microstrip structure (5),
Rectangular microstrip structure (6) surrounds a semi-open type groove for including smaller part circular groove (10), more than half circular groove (11) and rectangular channel (12).
The basic configuration of the radiation patch is circle, is so conducive to obtaining more preferable ultra wideband；At the top of the circular patch
Introduce the first " ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3) and etching smaller part circular groove (10) and rectangle
Groove (12) favorably improves the impedance matching of antenna；More than half circular groove (11) is etched on circular patch and is conducive to extended antenna low frequency end
Bandwidth.In addition, radiation patch, which introduces this semi-open type groove, can substantially reduce the area of radiation patch metal part, so that compared with
Antenna cost is greatly lowered.
First a quarter circular groove (13), the second a quarter circular groove (14), first level direction rectangular channel (15) and
Two horizontal direction rectangular channels (16) are used for the first rectangular channel (17) and the second rectangular channel on spreading antenna bandwidth, vertical direction
(18) it is used for improving the impedance matching of antenna, microstrip feed line (7) and first " circular arc slope " shape microstrip structure (8) and the second " circular arc
There is gap between slope " shape microstrip structure (9), form co-planar waveguide.
It is of the invention compared with existing UWB antennas, have the following advantages that：
1. antenna size is small, simple in construction, the requirement of antenna miniaturization can be met well；
2. with wider bandwidth, antenna -10dB impedance bandwidths reach 10.32GHz (2.97GHz-13.29GHz)；
3. antenna pattern is stable, and with good omnidirectional radiation characteristic；
4. low manufacture cost, precision are high, favorable repeatability, it is easy to batch production.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is radiation patch structure.
Fig. 3 is coplanar ground structure and microstrip feed line.
Fig. 4 is the test result of antenna return loss (S11) in the present invention.
Fig. 5 is testing radiation directional diagram of the Antenna Operation in 3.5GHz on XOZ faces in the present invention.
Fig. 6 is testing radiation directional diagram of the Antenna Operation in 3.5GHz on YOZ faces in the present invention.
Fig. 7 is testing radiation directional diagram of the Antenna Operation in 5.5GHz on XOZ faces in the present invention.
Fig. 8 is testing radiation directional diagram of the Antenna Operation in 5.5GHz on YOZ faces in the present invention.
Embodiment
The embodiment to the present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of miniaturization coplanar wave guide feedback ultra-wideband antenna in the present invention is made up of following seven part：
Dielectric-slab (1), the first " ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure
(4), " moon " shaped microstrip structure (5), rectangular microstrip structure (6), rectangular microstrip feeder line (7), first " circular arc slope " shape microstrip structure
(8) and second " circular arc slope " shape microstrip structure (9), wherein：
A. dielectric-slab (1) be cuboid, use dielectric constant for 4.6 and loss angle tangent be 0.02 FR4 dielectric materials,
Its size is 20mm*15mm*1.6mm；
B. the first " ladder " shape microstrip structure (2) is identical with second " ladder " shape microstrip structure (3) size, relative to medium
The plate longitudinal axis is symmetrical, and they are connected with " diplopore bridge " shape microstrip structure (4) and " moon " shaped microstrip structure (5) respectively；
C. " diplopore bridge " shape microstrip structure (4) is by with being lost on " moon " shaped microstrip structure (5) identical microband paste
What quarter smaller part circular groove (10) and more than half circular groove (11) were obtained, it is connected with rectangular microstrip structure (6)；
D. the first " ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure
(4), " moon " shaped microstrip structure (5), rectangular microstrip structure (6) surround one comprising smaller part circular groove (10), more than half circular groove (11) and
The semi-open type groove of rectangular channel (12), they collectively constitute the radiation patch of antenna, are joined directly together with rectangular microstrip feeder line (7)；
E. the first " circular arc slope " shape microstrip structure (8) is by etching the first a quarter circular groove respectively on rectangular patch
(13), first level direction rectangular channel (15) and the rectangular channel of vertical direction first (17) are obtained, the first a quarter circular groove
(13) it is located at the left side of the first " circular arc slope " shape microstrip structure (8), first level direction rectangular channel (15) is located at the first " circular arc
The right upper portion of slope " shape microstrip structure (8), the rectangular channel of vertical direction first (17) is located at first " circular arc slope " shape microstrip structure
(8) right side and positioned at the bottom of first level direction rectangular channel (15), the second " circular arc slope " shape microstrip structure (9) be by
The second a quarter circular groove (14), the second horizontal direction rectangular channel (16) and the square of vertical direction second are etched on rectangular patch respectively
Shape groove (18) is obtained, and first " circular arc slope " shape microstrip structure (8) and second " circular arc slope " shape microstrip structure (9) size phase
Together, the second a quarter circular groove (14) and the first a quarter circular groove (13) are symmetrical relative to the dielectric-slab longitudinal axis, the second water
Square, vertical direction second symmetrical relative to the dielectric-slab longitudinal axis to rectangular channel (16) and first level direction rectangular channel (15)
Rectangular channel (18) and the rectangular channel of vertical direction first (17) are symmetrical relative to the dielectric-slab longitudinal axis, first " circular arc slope " shape micro-strip
Structure (8) is identical with second " circular arc slope " shape microstrip structure (9) size, symmetrical relative to the dielectric-slab longitudinal axis, and and micro-strip
Feeder line (7) formation gap, constitutes co-planar waveguide；
F. above-mentioned all microstrip structures are printed in the same face of dielectric-slab (1).
The final size of UWB antennas is 20mm*15mm*1.6mm in the present invention, with good compactedness.Antenna echo
The test result of loss is as shown in Figure 4.Test result shows that antenna S11≤- 10dB working frequency range is：2.97-
13.29GHz, antenna -10dB impedance bandwidth reach 10.32GHz, and 3.1-10.6GHz frequency ranges are covered well.UWB in the present invention
Antenna respectively at 3.5GHz, 5.5GHz when XOZ faces and YOZ faces on testing radiation directional diagram as shown in Fig. 5 to Fig. 8.By surveying
Test result understands that the antenna has stable directional diagram and with good omnidirectional radiation characteristic.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (3)
1. one kind miniaturization coplanar wave guide feedback ultra-wideband antenna, including：Dielectric-slab (1), first " ladder " shape microstrip structure
(2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure (4), " moon " shaped microstrip structure (5), rectangular microstrip
Structure (6), rectangular microstrip feeder line (7), first " circular arc slope " shape microstrip structure (8) and second " circular arc slope " shape microstrip structure (9),
Described first " circular arc slope " shape microstrip structure (8) and the second " circular arc slope " shape microstrip structure (9) constitute coplanar ground structure；Described
One " ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure (4), " moon " shape are micro-
Band structure (5), rectangular microstrip structure (6) constitute the radiation patch of antenna, and the basic configuration of the radiation patch is circle, in the circle
The top of shape paster introduces the first " ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3), wherein：
A. dielectric-slab (1) be cuboid, use dielectric constant for 4.6 and loss angle tangent be 0.02 FR4 dielectric materials, its chi
Very little is 20mm*15mm*1.6mm；
B. the first " ladder " shape microstrip structure (2) is identical with second " ladder " shape microstrip structure (3) size, vertical relative to dielectric-slab
Axle is symmetrical；
C. " diplopore bridge " shape microstrip structure (4) be by with etched on " moon " shaped microstrip structure (5) identical microband paste it is small
What half slot (10) and more than half circular groove (11) were obtained；
D. the first " circular arc slope " shape microstrip structure (8) is by etching the first a quarter circular groove respectively on rectangular patch
(13), first level direction rectangular channel (15) and the rectangular channel of vertical direction first (17) are obtained, the first a quarter circular groove
(13) it is located at the left side of the first " circular arc slope " shape microstrip structure (8), first level direction rectangular channel (15) is located at the first " circular arc
The right upper portion of slope " shape microstrip structure (8), the rectangular channel of vertical direction first (17) is located at first " circular arc slope " shape microstrip structure
(8) right side and positioned at the bottom of first level direction rectangular channel (15), the second " circular arc slope " shape microstrip structure (9) be by
The second a quarter circular groove (14), the second horizontal direction rectangular channel (16) and the square of vertical direction second are etched on rectangular patch respectively
Shape groove (18) is obtained, and first " circular arc slope " shape microstrip structure (8) and second " circular arc slope " shape microstrip structure (9) size phase
Together, the second a quarter circular groove (14) and the first a quarter circular groove (13) are symmetrical relative to the dielectric-slab longitudinal axis, the second water
Square, vertical direction second symmetrical relative to the dielectric-slab longitudinal axis to rectangular channel (16) and first level direction rectangular channel (15)
Rectangular channel (18) and the rectangular channel of vertical direction first (17) are symmetrical relative to the dielectric-slab longitudinal axis.
2. a kind of miniaturization coplanar wave guide feedback ultra-wideband antenna according to claim 1, it is characterised in that：Described first
" ladder " shape microstrip structure (2), the second " ladder " shape microstrip structure (3), " diplopore bridge " shape microstrip structure (4), " moon " shaped microstrip
Structure (5), rectangular microstrip structure (6) surround half comprising smaller part circular groove (10), more than half circular groove (11) and rectangular channel (12)
Open type groove.
3. a kind of miniaturization coplanar wave guide feedback ultra-wideband antenna according to claim 1, it is characterised in that：One or four point
One of circular groove (13), the second a quarter circular groove (14), first level direction rectangular channel (15) and the second horizontal direction rectangular channel
(16) the first rectangular channel (17) and the second rectangular channel (18) being used on spreading antenna bandwidth, vertical direction are used for improving antenna
Impedance matching.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106067596A (en) * | 2016-05-23 | 2016-11-02 | 重庆邮电大学 | Miniaturization broadband medium resonator antenna based on coplanar wave guide feedback |
| CN106532235B (en) * | 2016-11-03 | 2019-09-17 | 云南大学 | 4 × 4 ultra wide band mimo antennas |
| CN106935967A (en) * | 2016-11-03 | 2017-07-07 | 云南大学 | The double trap UWB antennas of miniaturization based on EBG |
| CN106299727B (en) * | 2016-11-03 | 2020-04-07 | 云南大学 | Low mutual coupling 4-unit ultra-wideband MIMO antenna |
| CN108987919A (en) * | 2018-07-24 | 2018-12-11 | 西安电子科技大学 | A kind of polygon ultra-wideband antenna of compact unsymmetric structure |
| CN109659679B (en) * | 2018-11-23 | 2020-07-03 | 广东浩信通信科技有限公司 | Broadband microstrip antenna based on communication frequency band |
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| CN100414770C (en) * | 2005-12-08 | 2008-08-27 | 上海交通大学 | Coplane waveguide feed ultra wideband fractal antenna |
| CN202930554U (en) * | 2012-12-04 | 2013-05-08 | 哈尔滨飞羽科技有限公司 | Coplanar-waveguide ultra-wideband antenna having trapping characteristic |
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| KR100872177B1 (en) * | 2006-12-01 | 2008-12-09 | 한국전자통신연구원 | Ultra-Wide Band antenna |
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|---|---|---|---|---|
| CN100414770C (en) * | 2005-12-08 | 2008-08-27 | 上海交通大学 | Coplane waveguide feed ultra wideband fractal antenna |
| CN202930554U (en) * | 2012-12-04 | 2013-05-08 | 哈尔滨飞羽科技有限公司 | Coplanar-waveguide ultra-wideband antenna having trapping characteristic |
Non-Patent Citations (1)
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