CN103107420B - Mini-type ultra wide band symmetrical ring-vibrator combined antenna - Google Patents
Mini-type ultra wide band symmetrical ring-vibrator combined antenna Download PDFInfo
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- CN103107420B CN103107420B CN201310034114.3A CN201310034114A CN103107420B CN 103107420 B CN103107420 B CN 103107420B CN 201310034114 A CN201310034114 A CN 201310034114A CN 103107420 B CN103107420 B CN 103107420B
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Abstract
The invention discloses a mini-type ultra wide band symmetrical ring-vibrator combined antenna, and belongs to the technical field of microwaves. A top layer radiating element and a bottom layer radiating element are respectively arranged on a medium base plate with a dielectric constant from 2 to 20, wherein the top layer radiating element and the bottom layer radiating element are same in structure and arranged in a dissymmetry mode. Both the top layer radiating element and the bottom layer radiating element are composed of antipodal semi-loop radiating elements and polygonal vibrator elements. The top layer antipodal semi-loop radiating element and the bottom layer antipodal semi-loop radiating element are connected through a metalized through hole so as to form a symmetrical ring, the symmetrical ring and a symmetrical vibrator are combined into a whole antenna element. According to the combined antenna, a balanced feeding mode is adopted, an approximate single-way terminal emits wave beams, and the combined antenna is applied to a 'point to point' wide-band communication system. The mini-type ultra wide band symmetrical ring-vibrator combined antenna has the advantages of being simple in structure, small in size, low in manufacturing cost and the like. The mini-type ultra wide band symmetrical ring-vibrator combined antenna is not sensitive to an installation situation and can be directly integrated with a radio-frequency circuit of a difference structure.
Description
Technical field
The present invention relates to a kind of pocket super-broadband symmetrical ring-oscillator combined antenna, belong to microwave technical field.
Background technology
Ultra-wideband Communication Technology has that transmission rate is high, strong anti-interference performance, very bandwidth are wide, good confidentiality, the feature such as with low cost, has broad application prospects at the numerous areas such as radio communication, microwave imaging.But in ultra-wideband communication system design, the design of ultra broadband miniature antenna plays vital effect with realization to ultra-wideband communication system performance quality.Think that in general sense having the antenna that exceedes 25% relative bandwidth is exactly ultra-wideband antenna, and in its working band, the characteristic of antenna as input impedance, efficiency, lobe sensing, lobe width, gain, polarization etc. will be within the range of permission.For ultra-wideband communications, not only require ultra-wideband antenna in its working band, there is good impedance matching property, stable radiation directivity, gain characteristic and the polarization characteristic of relatively flat, and wish that antenna volume is enough little, with low cost, be convenient to processing and install.Ultra-wideband antenna not only can be applied in high-speed radiocommunication with its feature, can also be used for the application scenarios, broadband such as mobile communication indoor distribution system.
Traditional ultra-wideband antenna, as helical antenna, logarithm periodic antenna and cone antenna etc., although all there is ultra broadband characteristic,, they have plenty of stereochemical structure, and what have has a large and complicated planar structure, is unfavorable for compact applications.And common pocket super-broadband antenna mostly is unbalanced feed structure, is generally omnidirectional radiation, the maximum direction of its radiation plane (that is: characteristic is penetrated on limit) perpendicular to antenna place, and there is poor cross polarization characteristics.In order to improve the gain of antenna, make its greatest irradiation beam position be parallel to (that is: end-fire characteristic) in the direction of antenna place plane, to meet the needs of " point-to-point " application (as: short-range high speed file read-write system), also in order to improve the cross polarization characteristics of antenna and versatility to be installed, the present invention will propose a kind of new pocket super-broadband antenna structure simultaneously.
Summary of the invention
Technical problem to be solved of the present invention is the problem existing for background technology, a kind of combined antenna by symmetrical dipole and gradual change anti-pode symmetrical ring is proposed, this combined antenna has approximate end-fire characteristic and good cross-polarization performance, novel structure is simple, volume is little, section size is extremely low and be convenient to make and realize, can be directly and front radio-frequency circuit integrate.
The present invention adopts following technical scheme for solving the problems of the technologies described above:
A kind of pocket super-broadband symmetrical ring-oscillator combined antenna, comprises medium substrate, prints and be arranged on the double-edged bottom radiating element of medium substrate, top layer radiating element respectively; Described bottom radiating element is interconnected to constitute by bottom anti-pode semi-ring path radiation unit and bottom polygon oscillator unit, and described top layer radiating element is by being interconnected to constitute with the structure of bottom radiating element, measure-alike top layer anti-pode semi-ring path radiation unit, top layer polygon oscillator unit; Wherein, described bottom radiating element, top layer radiating element are arranged with respect to medium substrate antisymmetry, and described top layer anti-pode semi-ring path radiation unit is communicated with by metallization via hole up and down with bottom anti-pode semi-ring path radiation unit, forms a symmetrical ring.
Further prioritization scheme as pocket super-broadband symmetrical ring-oscillator combined antenna of the present invention: the number of described metallization via hole is 1-5.
Further prioritization scheme as pocket super-broadband symmetrical ring-oscillator combined antenna of the present invention: there is respectively angle of declination and top rade between the grading structure of described bottom anti-pode semi-ring path radiation unit and the grading structure of top layer anti-pode semi-ring path radiation unit; The scope of wherein said angle of declination is: 86 ° to 90 °, the scope of described top rade is: 21 ° to 31 °.
Further prioritization scheme as pocket super-broadband symmetrical ring-oscillator combined antenna of the present invention: described top layer polygon oscillator unit and bottom polygon oscillator unit have distributing point inclination angle and oscillator end inclination angle respectively; The scope at wherein said distributing point inclination angle is: 13 ° to 81 °, the scope at described oscillator end inclination angle is: 0 ° to 94 °.
Further prioritization scheme as pocket super-broadband symmetrical ring-oscillator combined antenna of the present invention: the dielectric constant range of described medium substrate is 2-20.
The present invention adopts technique scheme, has following technique effect:
The present invention can realize wideband operation characteristic, and size is little, adopts the structure of full symmetric, and manufacture craft is simple, and cost of manufacture is cheap, can effectively realize the Integration Design with differential driving microwave circuit.
Brief description of the drawings
Fig. 1 is Facad structure and the reference coordinate schematic diagram of antenna.
Fig. 2 is side structure and the reference coordinate schematic diagram of antenna.
Fig. 3 is the antenna reflection coefficient characteristic of utilizing IE3D software to calculate.
Fig. 4 is the antenna pattern that adopts IE3D software to calculate.
Fig. 5 is the antenna gain curve that adopts IE3D software to calculate.
Number in the figure: the 1st, medium substrate, the 2nd, top layer anti-pode semi-ring path radiation unit, the 3rd, bottom anti-pode semi-ring path radiation unit, the 4th, top layer polygon oscillator unit, the 5th, bottom polygon oscillator unit, the 6th, metallization via hole, the 7, the 8th, angle of declination, the top rade of top layer anti-pode semi-ring path radiation unit 2 and bottom anti-pode semi-ring path radiation unit 3, the 9, the 10th, the distributing point inclination angle of top layer polygon oscillator unit 4 and bottom polygon oscillator unit 5, oscillator end inclination angle.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
Contrast accompanying drawing 1, Fig. 2, its structure is: antenna is produced on medium substrate 1, and radiating element is made up of top layer radiating element and bottom radiating element, and both structures, size are identical; Top layer radiating element is made up of top layer anti-pode semi-ring path radiation unit 2 and top layer polygon oscillator unit 4 respectively, and bottom radiating element is made up of bottom anti-pode semi-ring path radiation unit 3 and bottom polygon oscillator unit 5 respectively; Top layer radiating element and bottom radiating element couple together by metallization via hole 6; In top layer anti-pode semi-ring path radiation unit 2 and bottom anti-pode semi-ring path radiation unit 3, contain angle of declination structure 7 and top rade structure 8, its scope is respectively 86 ° to 90 °, 21 ° to 31 °; In top layer polygon oscillator unit 4 and bottom polygon oscillator unit 5, contain distributing point inclination angle 9 and oscillator end inclination angle 10, its scope is respectively 13 ° to 81 °, 0 ° to 94 °.
Contrast accompanying drawing 3, accompanying drawing 3 are medium substrates 1 according to relative dielectric constant be 2.2, thick be 1 millimeter, the number of metallization via hole 6 is 0.2 millimeter according to 4, the radius of via hole, in top layer and bottom anti-pode semi-ring path radiation unit angle of declination 7 according to 86 °, top rade 8 according to 26 °, when implement according to 28 ° according to 42 °, oscillator end inclination angle 10 at distributing point inclination angle 9 in top layer polygon oscillator unit and bottom polygon oscillator unit, the antenna reflection coefficient frequency characteristic of utilizing IE3D Software simulation calculation to obtain.Visible according to the result of Fig. 3, this antenna has wider impedance bandwidth.
Reference frame and accompanying drawing 4,5 in contrast accompanying drawing 1, accompanying drawing 4 (a)-(f) provided respectively two main working face directional diagrams (xy-plane and zy-plane) of 3.68GHz, 5.75GHz and 10.96GHz, solid line in figure is main pole polarization component, and chain-dotted line is cross polar component; Accompanying drawing 5 has provided the gain characteristic in working frequency range.From Fig. 4 and Fig. 5, in whole working frequency range, antenna has metastable directional radiation properties (its main beam pointing+y direction), cross polarization level in main beam is lower than more than main pole 20dB, and there is the gain-frequency characterisitic of relatively flat, therefore can think that directional diagram bandwidth, gain bandwidth and the impedance bandwidth of this antenna are basically identical.
The present invention utilizes printed circuit board technology or integrated circuit technology, designs top layer radiating element and bottom radiating element on medium substrate, and utilizes metallization via hole that they are coupled together.The symmetrical configuration of this antenna, can realize the Integration Design of antenna and differential driving microwave circuit.
In sum, pocket super-broadband symmetrical ring-oscillator combined antenna, utilizes metallization via hole that antisymmetric radiating element is coupled together and forms the structure of a symmetrical ring-type.The structure of its balance, without introducing extra " ground plate " structure, has eliminated the spurious radiation characteristic of ground plate, makes its antenna can be used for occasion being installed arbitrarily, having more versatility; The combination of symmetrical dipole and symmetrical ring makes it have broadband character.In addition, this antenna structure is simple, volume light and handy, be easy to making, with low cost, and because its area is little, section is extremely low, is applicable to making the label type antenna in mini-plant.
Claims (5)
1. pocket super-broadband symmetrical ring-oscillator combined antenna, comprises medium substrate (1), prints and be arranged on the double-edged bottom radiating element of medium substrate (1), top layer radiating element respectively; It is characterized in that:
Described bottom radiating element is interconnected to constitute by bottom anti-pode semi-ring path radiation unit (3) and bottom polygon oscillator unit (5), and described top layer radiating element is by being interconnected to constitute with the structure of bottom radiating element, measure-alike top layer anti-pode semi-ring path radiation unit (2), top layer polygon oscillator unit (4); Wherein, described bottom radiating element, top layer radiating element are arranged with respect to medium substrate (1) antisymmetry, described top layer anti-pode semi-ring path radiation unit (2) is communicated with by metallization via hole (6) up and down with bottom anti-pode semi-ring path radiation unit (3), form a symmetrical ring, to improve the gain of antenna, its greatest irradiation beam position is parallel in the direction of antenna place plane, in whole working frequency range, have metastable directional radiation properties, the combination of symmetrical dipole and symmetrical ring makes it have broadband character.
2. pocket super-broadband symmetrical ring-oscillator combined antenna according to claim 1, is characterized in that: the number of described metallization via hole is 1-5.
3. pocket super-broadband symmetrical ring-oscillator combined antenna according to claim 1, is characterized in that: between the grading structure of described bottom anti-pode semi-ring path radiation unit (3) and the grading structure of top layer anti-pode semi-ring path radiation unit (2), have respectively angle of declination (7) and top rade (8); The scope of wherein said angle of declination (7) is: 86 ° to 90 °, the scope of described top rade (8) is: 21 ° to 31 °.
4. pocket super-broadband symmetrical ring-oscillator combined antenna according to claim 1, is characterized in that: described top layer polygon oscillator unit (4) has distributing point inclination angle (9) and oscillator end inclination angle (10) respectively with bottom polygon oscillator unit (5); The scope at wherein said distributing point inclination angle (9) is: 13 ° to 81 °, the scope at described oscillator end inclination angle (10) is: 0 ° to 94 °.
5. pocket super-broadband symmetrical ring-oscillator combined antenna according to claim 1, is characterized in that: the dielectric constant range of described medium substrate is 2-20.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310034114.3A CN103107420B (en) | 2013-01-30 | 2013-01-30 | Mini-type ultra wide band symmetrical ring-vibrator combined antenna |
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| CN201310034114.3A CN103107420B (en) | 2013-01-30 | 2013-01-30 | Mini-type ultra wide band symmetrical ring-vibrator combined antenna |
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| CN103107420A CN103107420A (en) | 2013-05-15 |
| CN103107420B true CN103107420B (en) | 2014-12-10 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746185B (en) * | 2014-01-24 | 2015-10-21 | 南京邮电大学 | A kind of miniaturized fractal ultra-wideband symmetrical ring-element combination antenna |
| CN104617380B (en) * | 2015-01-08 | 2017-03-15 | 南京邮电大学 | A kind of plane bore symmetrical ring combined antenna of circular polarisation end-fire characteristic |
| CN104617376B (en) * | 2015-01-08 | 2017-04-19 | 南京邮电大学 | Asymmetrical wearable broadband antenna |
| CN105186122B (en) * | 2015-08-19 | 2017-09-15 | 南京邮电大学 | A kind of end-fire features tab antenna |
| CN105305042B (en) * | 2015-09-29 | 2017-11-17 | 南京邮电大学 | A kind of double frequency round polarized flat plane antenna |
| RU2654914C1 (en) * | 2017-07-17 | 2018-05-23 | Закрытое акционерное общество "Институт телекоммуникаций" | Wireless antenna |
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| CN1639915A (en) * | 2002-03-05 | 2005-07-13 | 摩托罗拉公司 | Balanced multi-band antenna system |
| CN101385199A (en) * | 2006-02-16 | 2009-03-11 | 日本电气株式会社 | Small-size wide-band antenna and radio communication device |
| CN101404353A (en) * | 2008-09-09 | 2009-04-08 | 南京邮电大学 | Ultra-broadband folding coil antenna of coplanar waveguide feed and method for producing the same |
| CN101895011A (en) * | 2010-06-13 | 2010-11-24 | 南京邮电大学 | Wideband printing antenna with symmetrical dipole-antipodal slot line composite structure |
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2013
- 2013-01-30 CN CN201310034114.3A patent/CN103107420B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639915A (en) * | 2002-03-05 | 2005-07-13 | 摩托罗拉公司 | Balanced multi-band antenna system |
| CN101385199A (en) * | 2006-02-16 | 2009-03-11 | 日本电气株式会社 | Small-size wide-band antenna and radio communication device |
| CN101404353A (en) * | 2008-09-09 | 2009-04-08 | 南京邮电大学 | Ultra-broadband folding coil antenna of coplanar waveguide feed and method for producing the same |
| CN101895011A (en) * | 2010-06-13 | 2010-11-24 | 南京邮电大学 | Wideband printing antenna with symmetrical dipole-antipodal slot line composite structure |
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Effective date of registration: 20161209 Address after: Zhongtian Industrial Park estuary town of Rudong County, Jiangsu city of Nantong Province Haimen 226400 Patentee after: Zhongtian Broadband Technology Co., Ltd. Address before: 210003 Gulou District, Jiangsu, Nanjing new model road, No. 66 Patentee before: Nanjing Post & Telecommunication Univ. |
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Address after: 226400 Rudong, Jiangsu province Hekou Town Industrial Park Patentee after: Zhongtian Broadband Technology Co., Ltd. Address before: Zhongtian Industrial Park estuary town of Rudong County, Jiangsu city of Nantong Province Haimen 226400 Patentee before: Zhongtian Broadband Technology Co., Ltd. |
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Effective date of registration: 20191119 Address after: 226400 Zhongtian Industrial Zone, Hekou Town, Rudong County, Jiangsu, Nantong Co-patentee after: Zhongtian Communication Technology Co., Ltd Patentee after: Zhongtian Broadband Technology Co., Ltd. Address before: 226400 Zhongtian Industrial Zone, Hekou Town, Rudong County, Jiangsu, Nantong Patentee before: Zhongtian Broadband Technology Co., Ltd. |
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