CN204189951U - Antenna - Google Patents
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- CN204189951U CN204189951U CN201420655668.5U CN201420655668U CN204189951U CN 204189951 U CN204189951 U CN 204189951U CN 201420655668 U CN201420655668 U CN 201420655668U CN 204189951 U CN204189951 U CN 204189951U
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Abstract
The utility model provides a kind of antenna, comprise dielectric-slab and metal level assembly, dielectric-slab comprises first surface and second surface, metal level assembly is arranged on dielectric-slab, metal level assembly comprises be symmetrically set the first metal layer and the second metal level, the first metal layer is arranged on the first surface, the first metal layer comprises current feed terminal, first microstrip line, second microstrip line and the first micro strip, current feed terminal is arranged on and is positioned on the base of first surface, first micro strip be arranged on be positioned at first surface first side away from the end of current feed terminal, first microstrip line and the second microstrip line are that arc-shaped is arranged, the first end of the first microstrip line is connected with current feed terminal, second end of the first microstrip line is connected with the top of the first micro strip, the first end of the second microstrip line is connected with current feed terminal, second end of the second microstrip line is connected with the bottom of the first micro strip.This antenna realizes wider working band, impedance bandwidth and in band return loss little, structure is simple, and design is convenient.
Description
Technical field
The utility model relates to field of antenna, particularly relates to a kind of miniature antenna for wireless communication field.
Background technology
In recent years, super broad band radio communication becomes the focus of global concern, obtains and pays close attention to widely.The Technology of Ultra relies on transmission rate high, good confidentiality, and the features such as interference resistance is strong become rapidly study hotspot, and one of key technology being regarded as next generation wireless communication.Ultra-Wide Band Radio all has broad application prospects in the various fields such as radio communication, radar, tracking, accurately location, weapon control.Traditional ultra-wideband antenna volume is large, efficiency is low, feed is complicated, is difficult to ensure broad frequency range internal antenna directivity and impedance operator, and is difficult to maintain the constant of antenna axial ratio.On the basis ensureing wide impedance bandwidth and high transmit power, realize the miniaturization of antenna, become the subject matter that ultra-wideband antenna design faces.
Along with the development of microwave technology, the miniaturization of antenna, intellectuality, broadband become demand trend, and require that antenna is easy to make, can be mass.Typical ultra-wideband antenna comprises logarithm periodic antenna, traveling-wave antenna, horn antenna etc., and these antenna can realize the bandwidth of operation of several octave, but the shortcoming of above-mentioned these antenna to be all sizes large, make above-mentioned antenna all be limited to application scenario.
Summary of the invention
The purpose of this utility model provides a kind of structure simple and the antenna that working band is wide.
In order to realize the purpose of this utility model, the utility model provides a kind of antenna, comprise dielectric-slab and metal level assembly, dielectric-slab comprises first surface and the second surface positioned opposite with first surface, metal level assembly is arranged on dielectric-slab, wherein, metal level assembly comprises the first metal layer and the second metal level, the first metal layer is arranged on the first surface, the first metal layer comprises current feed terminal, first microstrip line, second microstrip line and the first micro strip, current feed terminal is arranged on and is positioned on the base of first surface, first micro strip be arranged on be positioned at first surface first side away from the end of current feed terminal, first microstrip line and the second microstrip line are that arc-shaped is arranged, the first end of the first microstrip line is connected with current feed terminal, second end of the first microstrip line is connected with the top of the first micro strip, the first end of the second microstrip line is connected with current feed terminal, second end of the second microstrip line is connected with the bottom of the first micro strip, second metal level is arranged on a second surface, second metal level comprises the second micro strip, 3rd microstrip line, 4th microstrip line and with the 3rd micro strip, second micro strip is arranged on the base of second surface, 3rd micro strip be arranged on be positioned at second surface the end of second side away from the second micro strip on, 3rd microstrip line and the 4th microstrip line are that arc-shaped is arranged, the first end of the 3rd microstrip line is connected with the second micro strip, second end of the 3rd microstrip line is connected with the top of the 3rd micro strip, the first end of the 4th microstrip line is connected with the second micro strip, second end of the 4th microstrip line is connected with the bottom of the 3rd micro strip.
From such scheme, by arranging metal level respectively on the front and back at dielectric-slab, and realize wider working band by the structure of metal level, impedance bandwidth and band in return loss little, utilize this transition line to design ultra-wideband antenna simultaneously, circular arc microstrip line is utilized to expand bandwidth, obtain wider impedance bandwidth, structure is simple, design is convenient, and metal level conductor feed end is connected to rectangular microband paste overleaf, for antenna provides good impedance matching, antenna is made to realize radiation efficiency high, the feature that pulse distortion is little, the antenna that the utility model is provided not only volume is little, lightweight, and standing wave flatness is good.
Further scheme is, the 3rd microstrip line is identical with the shape of the first microstrip line, and the 4th microstrip line is identical with the shape of the second microstrip line, and the 3rd micro strip is identical with the shape of the first micro strip.
Therefore the microstrip line that shape is identical not only can reduce the quantity of mould effectively, makes this antenna effectively to control cost, the microstrip line that shape is identical simultaneously can obtain wider impedance bandwidth.
Further scheme is, current feed terminal is arranged on the middle part on the base being positioned at first surface, and the second micro strip is arranged on the middle part on the base of second surface.
Further scheme is, 3rd micro strip is that symmetry axis and the first micro strip are symmetrical arranged with current feed terminal, 3rd microstrip line is that symmetry axis and the first microstrip line are symmetrical arranged with current feed terminal, and the 4th microstrip line is that symmetry axis and the second microstrip line are symmetrical arranged with current feed terminal.
Therefore the micro strip be symmetrical set can provide good impedance matching for antenna, antenna is realized, and radiation efficiency is high, pulse distortion is little.
Further scheme is, the length of dielectric-slab is 70 millimeters, the width of dielectric-slab 60 millimeters, and the thickness of dielectric-slab is 1.6 millimeters.
Further scheme is, dielectric-slab is made by epoxy glass fiber material.
Further scheme is, the length of the first micro strip is 27 millimeters, and the width of the first micro strip is 11.5 millimeters.
Further scheme is, the length of the second micro strip is 40 millimeters, and the width of the second micro strip is 8 millimeters.
Further scheme is, the outer arc radius of the first microstrip line is 87.4 millimeters to 96.6 millimeters, and the inner arc radius of the first microstrip line is 85.5 millimeters to 94.5 millimeters.
Further scheme is, the outer arc radius of the second microstrip line is 35.15 millimeters to 38.85 millimeters, and the inner arc radius of the second microstrip line is 32.3 millimeters to 35.7 millimeters.
Therefore, by the setting to dielectric-slab, micro strip and microstrip line geomery, the antenna that the utility model is provided carries out design and simulation at electromagnetic simulation software CST microwave studio, experimental results represents in 2.7-30GHz frequency band, the return loss of antenna is all less than-10dB, and impedance matching is good.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model antenna embodiment.
Fig. 2 is the structure chart under first surface visual angle of the utility model antenna embodiment.
Fig. 3 is the structure chart under second surface visual angle of the utility model antenna embodiment.
Fig. 4 is the schematic diagram under first surface visual angle of the utility model antenna embodiment.
Fig. 5 is the change curve of the return loss of the utility model antenna embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
With reference to the structure chart that Fig. 1, Fig. 1 are the array antennas rearranged by multiple antenna 1.Multiple antenna 1 has rearranged array antenna along Z axis.With reference to the structure chart that Fig. 2, Fig. 2 are along the antenna 1 under the visual angle of Z axis, i.e. the structure chart of the first surface of dielectric-slab.The metal level assembly that antenna 1 comprises dielectric-slab 11 and is arranged on dielectric-slab 11.Dielectric-slab 11 is the Rectangular Enclosure with Participating Media plate that is made by epoxy glass fiber material, and the length L1 of dielectric-slab 11 is 70 millimeters, and the width L2 of dielectric-slab 11 is 60 millimeters, and the thickness of dielectric-slab 11 is 1.6 millimeters.
Dielectric-slab 11 comprises first surface and second surface, and first surface is towards the reciprocal surface of Z axis, and second surface is towards the surface of Z axis positive direction.Dielectric-slab 11 also comprises first side 121 and second side 122, and first side 121 is towards the reciprocal side of Y-axis, and first side 122 is towards the side of Y-axis positive direction.
Metal level assembly comprises the first metal layer and the second metal level, the first metal layer comprises current feed terminal 21, first microstrip line 23, second microstrip line 24 and the first micro strip 22, and the metal level that current feed terminal 21, first microstrip line 23, second microstrip line 24 and the first micro strip 22 are formed in one.Current feed terminal 21 is arranged on and is positioned on the base 111 of first surface, and current feed terminal 21 is arranged on the middle part on base 111, and the length L3 of current feed terminal 21 is 10 millimeters, and the width L4 of current feed terminal 21 is 3 millimeters.
First micro strip 22 is arranged on and is positioned on the first side 121 of first surface, and the first micro strip 22 is arranged on the end away from current feed terminal 21, and the length L5 of the first micro strip 22 is 27 millimeters, and the width L6 of the first micro strip 22 is 11.5 millimeters.
First microstrip line 23 is arranged in arc-shaped, the first end of the first microstrip line 23 is connected with current feed terminal 21, second end of the first microstrip line 23 is connected with the top of the first micro strip 22, particularly, first microstrip line 23 comprises outer arc and inner arc, the radius R 1 of the outer arc of the first microstrip line 23 is 87.4 millimeters to 96.6 millimeters, and preferably, the outer arc radius R 1 of the first microstrip line 23 can value 92 millimeters.The radius R 2 of the inner arc of the first microstrip line 23 is 85.5 millimeters to 94.5 millimeters, and preferably, the inner arc radius R 2 of the first microstrip line 23 can value 90 millimeters.The outer arc of the first microstrip line 23 is connected between the summit 211 on the left of current feed terminal 21 and the summit 221 on the left of the first micro strip 22, and the inner arc of the first microstrip line 23 and the concyclic heart of outer arc of the first microstrip line 23 are arranged.
Second microstrip line 24 is arranged in arc-shaped, the first end of the second microstrip line 24 is connected with current feed terminal 21, second end of the second microstrip line 24 is connected with the bottom of the first micro strip 22, particularly, second microstrip line 24 comprises outer arc and inner arc, the radius R 3 of the outer arc of the second microstrip line 24 is 35.15 millimeters to 38.85 millimeters, and preferably, the outer arc radius R 3 of the second microstrip line 24 can value 37 millimeters.The radius R 4 of the inner arc of the second microstrip line 24 is 32.3 millimeters to 35.7 millimeters, and preferably, the inner arc radius R 4 of the second microstrip line 24 can value 34 millimeters.The inner arc of the second microstrip line 24 is connected between summit 212 on the right side of current feed terminal 21 and the first micro strip 22 base, and the inner arc of the second microstrip line 24 and the concyclic heart of outer arc of the second microstrip line 24 are arranged.
With reference to the structure chart that Fig. 3, Fig. 3 are along the antenna 1 under the reciprocal visual angle of Z axis, i.e. the structure chart of the second surface of dielectric-slab.Second metal level is arranged on a second surface, second metal level comprises the second micro strip 41, the 3rd microstrip line 43, the 4th microstrip line 44 and the 3rd micro strip 42, and the metal level that the second micro strip 41, the 3rd microstrip line 43, the 4th microstrip line 44 and the 3rd micro strip 42 are formed in one.Second micro strip 41 is arranged on and is positioned on the base 112 of second surface, and the second micro strip 41 is arranged on the middle part on base 112, and the length L7 of the second micro strip 41 is 40 millimeters, and the width L8 of current feed terminal 21 is 8 millimeters.At the crown center of the second micro strip 41, outer lug is provided with current feed department 411.
Because the 3rd microstrip line 43 is all identical with the shape and size of the first microstrip line 23, the 4th microstrip line 44 is all identical with the shape and size of the second microstrip line 24, and the 3rd micro strip 42 is all identical with the shape and size of the first micro strip 22.So be no longer described the geomery of the 3rd microstrip line 43, the 4th microstrip line 44 and the second microstrip line 24.
3rd micro strip 42 be arranged on be positioned at second surface the end of second side 122 away from the second micro strip 41 on, the first end of the 3rd microstrip line 43 is connected with the current feed department 411 of the second micro strip 41, second end of the 3rd microstrip line 43 is connected with the top of the 3rd micro strip 42, the first end of the 4th microstrip line 44 is connected with the current feed department 411 of the second micro strip 41, and the second end of the 4th microstrip line 44 is connected with the bottom of the 3rd micro strip 42.
Reference Fig. 4, Fig. 4 are the schematic diagram of antenna 1 under first surface visual angle.As seen from Figure 4, first micro strip 22 is arranged on first side 121,3rd micro strip 42 is arranged on second side 122, and current feed terminal 21 has central axis L, 3rd micro strip 42 is that symmetry axis and the first micro strip 22 are symmetrical arranged with central axis L, 3rd microstrip line 43 is that symmetry axis and the first microstrip line 23 are symmetrical arranged with central axis L, and the 4th microstrip line 44 is that symmetry axis and the second microstrip line 24 are symmetrical arranged with central axis L.
Be the change curve of antenna 1 at return loss S11 with reference to Fig. 5, Fig. 5, antenna 1 carries out design and simulation utilizing electromagnetic simulation software CST microwave studio, and experimental results as shown in Figure 5.In 2.7GHz to 30GHz frequency band, the return loss of antenna is all less than-10dB, and impedance matching is good.
Therefore, by arranging the metal level of special construction on the first surface and second surface of dielectric-slab respectively, and realize wider working band by the structure of metal level, impedance bandwidth and band in return loss little, utilize this transition line to design ultra-wideband antenna simultaneously, circular arc microstrip line is utilized to expand bandwidth, obtain wider impedance bandwidth, structure is simple, design is convenient, and metal level conductor feed end is connected to rectangular microband paste overleaf, for antenna provides good impedance matching, antenna is made to realize radiation efficiency high, the feature that pulse distortion is little, the antenna that the utility model is provided not only volume is little, lightweight, and standing wave flatness is good.
Claims (10)
1. antenna, comprises
Dielectric-slab, described dielectric-slab comprises first surface and the second surface positioned opposite with described first surface;
Metal level assembly, described metal level assembly is arranged on described dielectric-slab;
It is characterized in that:
Described metal level assembly comprises the first metal layer and the second metal level;
Described the first metal layer is arranged on the first surface, described the first metal layer comprises current feed terminal, first microstrip line, second microstrip line and the first micro strip, described current feed terminal be arranged on be positioned at described first surface base on, described first micro strip be arranged on be positioned at described first surface the end of first side away from described current feed terminal on, described first microstrip line and described second microstrip line are that arc-shaped is arranged, the first end of described first microstrip line is connected with described current feed terminal, second end of described first microstrip line is connected with the top of the first micro strip, the first end of described second microstrip line is connected with described current feed terminal, second end of described second microstrip line is connected with the bottom of described first micro strip,
Described second metal level is arranged on described second surface, second metal level comprises the second micro strip, 3rd microstrip line, 4th microstrip line and with the 3rd micro strip, described second micro strip is arranged on the base of described second surface, described 3rd micro strip be arranged on be positioned at described second surface the end of second side away from described second micro strip on, described 3rd microstrip line and described 4th microstrip line are that arc-shaped is arranged, the first end of described 3rd microstrip line is connected with described second micro strip, second end of described 3rd microstrip line is connected with the top of the 3rd micro strip, the first end of described 4th microstrip line is connected with described second micro strip, second end of described 4th microstrip line is connected with the bottom of described 3rd micro strip.
2. antenna according to claim 1, is characterized in that:
Described 3rd microstrip line is identical with the shape of described first microstrip line, and the 4th microstrip line is identical with the shape of described second microstrip line, and described 3rd micro strip is identical with the shape of described first micro strip.
3. antenna according to claim 2, is characterized in that:
Described current feed terminal is arranged on the middle part on the base being positioned at described first surface, and described second micro strip is arranged on the middle part on the base of described second surface.
4. antenna according to claim 3, is characterized in that:
Described 3rd micro strip with described current feed terminal for symmetry axis and described first micro strip are symmetrical arranged, described 3rd microstrip line with described current feed terminal for symmetry axis and described first microstrip line are symmetrical arranged, described 4th microstrip line with described current feed terminal for symmetry axis and described second microstrip line are symmetrical arranged.
5. the antenna according to any one of claim 2 to 4, is characterized in that:
The length of described dielectric-slab is 70 millimeters, the width of described dielectric-slab 60 millimeters, and the thickness of described dielectric-slab is 1.6 millimeters.
6. antenna according to claim 5, is characterized in that:
Described dielectric-slab is made by epoxy glass fiber material.
7. the antenna according to any one of claim 2 to 4, is characterized in that:
The length of described first micro strip is 27 millimeters, and the width of described first micro strip is 11.5 millimeters.
8. the antenna according to any one of claim 2 to 4, is characterized in that:
The length of described second micro strip is 40 millimeters, and the width of described second micro strip is 8 millimeters.
9. the antenna according to any one of claim 2 to 4, is characterized in that:
The outer arc radius of described first microstrip line is 87.4 millimeters to 96.6 millimeters, and the inner arc radius of described first microstrip line is 85.5 millimeters to 94.5 millimeters.
10. the antenna according to any one of claim 2 to 4, is characterized in that:
The outer arc radius of described second microstrip line is 35.15 millimeters to 38.85 millimeters, and the inner arc radius of described second microstrip line is 32.3 millimeters to 35.7 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420655668.5U CN204189951U (en) | 2014-11-04 | 2014-11-04 | Antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420655668.5U CN204189951U (en) | 2014-11-04 | 2014-11-04 | Antenna |
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| Publication Number | Publication Date |
|---|---|
| CN204189951U true CN204189951U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420655668.5U Active CN204189951U (en) | 2014-11-04 | 2014-11-04 | Antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300223B (en) * | 2014-11-04 | 2017-06-09 | 珠海纳睿达科技有限公司 | Antenna |
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- 2014-11-04 CN CN201420655668.5U patent/CN204189951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300223B (en) * | 2014-11-04 | 2017-06-09 | 珠海纳睿达科技有限公司 | Antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: No.2 Gangle Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080 Patentee after: Guangdong Narui Radar Technology Co.,Ltd. Address before: Room 605, Dazhou Science Park, 1 Gangle Road, Tangjia Town, high tech Zone, Zhuhai City, Guangdong Province, 519800 Patentee before: Zhuhai Naruida Technology Co.,Ltd. |
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| CP03 | "change of name, title or address" |