CN204011730U - A kind of broadband rectangular microstrip array antenna - Google Patents
A kind of broadband rectangular microstrip array antenna Download PDFInfo
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- CN204011730U CN204011730U CN201420392000.6U CN201420392000U CN204011730U CN 204011730 U CN204011730 U CN 204011730U CN 201420392000 U CN201420392000 U CN 201420392000U CN 204011730 U CN204011730 U CN 204011730U
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Abstract
The utility model relates to a kind of broadband rectangular microstrip array antenna.Solve the problem that existing micro-strip array antenna frequency band is narrow, volume large, standing-wave ratio is larger.Antenna comprises dielectric-slab, on described dielectric-slab tow sides, be respectively arranged with some micro-band radiation patch, between micro-band radiation patch, be in series by feeder line, form respectively microstrip array at dielectric-slab tow sides, be provided with short circuit fastener on dielectric-slab top, described short circuit fastener two ends are connected with the double-edged microstrip array of dielectric-slab upper end respectively, and dielectric-slab lower end is provided with coaxial transmission line, and the double-edged microstrip array of dielectric-slab lower end is connected with coaxial transmission line respectively.The utility model has the advantages that compact conformation, realized the omnidirectional radiation of horizontal direction, solved traditional micro-strip array antenna narrow bandwidth, problem that standing-wave ratio is large.
Description
Technical field
The utility model relates to a kind of wireless communication technology field, relates in particular to a kind of broadband rectangular microstrip array antenna.
Background technology
In recent years, along with technology high-speed development such as radio communication, radio and television, satellite navigation, mobile communication, more and more higher to the performance requirement of antenna, make the research of antenna become a hot issue.In many antenna systems, micro-strip array antenna is little with its volume, section is low, lightweight, easy of integration, the easy advantage such as conformal and low cost and be subject to people's favor.But due to micro-strip array antenna, not only narrow bandwidth gain is little, and vertical 3dB angle is little, these factors have all restricted its further application and development.For this reason, researcher proposes a lot of methods and improves the performance of micro-strip array antenna.
The development of the universal and broadband wireless communication technique of handheld communication devices, had proposed more and more higher requirement to antenna performance in recent years, be mainly reflected in frequency band wider, volume is less, be convenient to install and carry, and has good radiation characteristic simultaneously.In military communication field, in order to realize anti-interference and secure communication, often adopt multiband, multi-functional radio station, original narrow-band antenna cannot meet the demands.In addition, the multiple antenna that distributes in narrow space, interference is each other very serious, and has influence on communication quality.In order to solve above contradiction, the most effective solution is exactly the number of antenna on development broadband, miniature antenna and minimizing carrier.And in commercial signal communication system, radio communication seems particularly important as the technical way of society.Along with information capacity constantly expands, transmission rate improves constantly, corresponding is that communication equipment is increasingly broadband.Antenna is as the parts that transmit and receive of wireless communication system, and its broadband research has important realistic meaning.
Micro-strip array antenna due to lightweight, volume is little, low section, easily the advantage such as conformal and low cost has obtained studying widely and applying, but the narrow deficiency that becomes micro-strip array antenna maximum of frequency band, general micro-strip array antenna bandwidth is 2%～3%.Therefore carrying out the work tool of widening micro-strip array antenna working band has very important significance.At present more to the research of broadening micro-strip array antenna bandwidth, as reduced the Q value of micro-strip array antenna equivalent resonant circuit, increase the dielectric constant of substrate thickness and reduction substrate etc.But the increase of substrate thickness can strengthen the excitation of surface wave; The potentiality that reduce dielectric constant are limited.Additional parasitic patch in addition, takes multilayered slot-coupled micro-strip array antenna form and the printed dipole antenna structure also can widening frequency band.But these methods are often with the cost that increases to of volume and complexity.
Summary of the invention
The problem that the utility model has mainly solved that existing micro-strip array antenna frequency band is narrow, volume is large, standing-wave ratio is larger, provides a kind of compact conformation, low, the high broadband of cost, broadband rectangular microstrip array antenna that standing-wave ratio is little.
The utility model solves the technical scheme that its technical problem adopts: a kind of broadband rectangular microstrip array antenna, comprise dielectric-slab, on described dielectric-slab tow sides, be respectively arranged with some micro-band radiation patch, between micro-band radiation patch, be in series by feeder line, form respectively microstrip array at dielectric-slab tow sides, be provided with short circuit fastener on dielectric-slab top, described short circuit fastener two ends are connected with the double-edged microstrip array of dielectric-slab upper end respectively, dielectric-slab lower end is provided with coaxial transmission line, the double-edged microstrip array of dielectric-slab lower end is connected with coaxial transmission line respectively.The utility model adopts dielectric-slab tow sides that micro-band radiation patch is set, and tow sides form microstrip array upper end between by the cascade of short circuit fastener, utilize series feed mode to form micro-strip array antenna array antenna array, coaxial transmission line is in order to feed, realize like this omnidirectional radiation of horizontal direction, solved traditional micro-strip array antenna narrow bandwidth, problem that standing-wave ratio is large.Broadband rectangular microstrip array antenna adopts printed circuit board technology to carry out processing and fabricating, uses double face copper, through PCB flow process, and through technology for preparing plywood and metal substrate technology, produces the multi-layer sheet with three layers of circuit.
As a kind of preferred version of such scheme, described micro-band radiation patch is rectangle, micro-band radiation patch is arranged in a linear and is arranged on dielectric-slab positive and negative, and the micro-band radiation patch sequence on dielectric-slab tow sides arranges, described short circuit fastener one end is connected on the feeder line of a microstrip array upper end of dielectric-slab, and the short circuit fastener other end is connected to micro-centre with radiation patch of dielectric-slab another side microstrip array upper end.On dielectric-slab positive and negative, form rectangular patch cascaded array, and on dielectric-slab positive and negative, micro-band radiation patch sequence arranges, further improved the performance of antenna.
As a kind of preferred version of such scheme, described dielectric-slab is made up of polytetrafluoroethylene glass-reinforced panel, and the length of dielectric-slab is 260mm, and width is 30mm, and thickness is 3mm.Dielectric-slab adopts polytetrafluoroethylene glass-reinforced panel to make, its relative dielectric constant ε
r=2.55, losstangenttanδ=0.0015.
As a kind of preferred version of such scheme, described micro-band radiation patch is made of copper, and micro-band radiation patch length is 32.5mm, and width is 18mm, and thickness is 36 μ m.Be made of copper its conductivity σ=1.57 × 10
7(s/m).
As a kind of preferred version of such scheme, on described dielectric-slab lower end, be provided with air groove, coaxial transmission line stretches in air groove, and the inner wire of described coaxial transmission line is connected with dielectric-slab positive and negative microstrip array lower end respectively, and the outer conductor of coaxial transmission line is connected with dielectric-slab.Microstrip array on dielectric-slab positive and negative forms the structure being in parallel.
As a kind of preferred version of such scheme, described air groove length is 20mm, and width is 6mm, and coaxial transmission line length is 18mm, and diameter is 6mm.
As a kind of preferred version of such scheme, the length of described short circuit fastener is 3mm, and radius is 0.8mm, and described feeder line length is 40mm, and width is 2mm.
The utility model has the advantages that: compact conformation, adopt dielectric-slab tow sides that micro-band radiation patch is set, by the cascade of short circuit fastener, utilize series feed mode to form micro-strip array antenna array antenna array, realize the omnidirectional radiation of horizontal direction, solved traditional micro-strip array antenna narrow bandwidth, problem that standing-wave ratio is large.
Brief description of the drawings
Fig. 1 is a kind of structural representation in the utility model front;
Fig. 2 is a kind of structural representation at the utility model back side.
The micro-band radiation patch of 1-dielectric-slab 2-3-feeder line 4-short circuit fastener 5-air groove 6-coaxial transmission line
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described.
Embodiment:
This implements a kind of broadband rectangular microstrip array antenna, as depicted in figs. 1 and 2, comprise dielectric-slab 1, on dielectric-slab tow sides, be respectively arranged with some micro-band radiation patch 2, this is slightly with radiation patch to be arranged in a linear and is separately positioned on dielectric-slab positive and negative, and the micro-band radiation patch sequence on dielectric-slab tow sides arranges, and between micro-band radiation patch, is in series by feeder line 3, forms respectively microstrip array like this at dielectric-slab tow sides.Be provided with short circuit fastener 4 on dielectric-slab top, short circuit fastener two ends are connected with the double-edged microstrip array of dielectric-slab upper end respectively, in Fig. 1, short circuit fastener one end is connected with the feeder line that is positioned at the top in dielectric-slab front, in Fig. 2, the short circuit fastener other end is connected with the micro-band radiation patch that is positioned at the top at dielectric-slab reverse side, and tie point is positioned at this micro-centre position with radiation patch.On the lower end of dielectric-slab, have air groove 5, this air groove is rectangle, and opening is positioned on dielectric-slab base.In air groove, be provided with coaxial transmission line 6, the inner wire of coaxial transmission line is connected with micro-band radiation patch of dielectric-slab positive and negative microstrip array lower end respectively, and the outer conductor of coaxial transmission line is connected with dielectric-slab.
It is the feed microstrip line mode of 50 Ω that micro-strip array antenna adopts characteristic impedance.
The rectangular patch length L of micro-strip array antenna is generally taken as λ
e/ 2, λ
efor the guide wavelength in medium, be:
Consider that edge shortens after effect, actual rectangular patch length L should be:
In formula, ε
ebe effective dielectric constant, Δ L is equivalent radiated power gap length.They can calculate with following formula respectively, are:
Through optimizing again the size partly such as the width of definite paster, microstrip feed line, medium substrate, coaxial transmission line, short circuit fastener, input copper conductor respectively.
The present embodiment intermediary scutum is made up of polytetrafluoroethylene glass-reinforced panel, and the length of dielectric-slab is 260mm, and width is 30mm, and thickness is 3mm.Mechanism plate relative dielectric constant ε
r=2.55, losstangenttanδ=0.0015.
Micro-band radiation patch is made of copper, and micro-band radiation patch length is 32.5mm, and width is 18mm, and thickness is 36 μ m.Its conductivity σ=1.57 × 10
7(s/m).
Feeder line length is 40mm, and width is 2mm.Feeder line length is micro-with the spacing between radiation patch.
Air groove length is 20mm, and width is 6mm, and coaxial transmission line length is 18mm, and diameter is 6mm.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as dielectric-slab, micro-band radiation patch, feeder line, short circuit fastener, air groove herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (7)
1. a broadband rectangular microstrip array antenna, comprise dielectric-slab, it is characterized in that: on described dielectric-slab (1) tow sides, be respectively arranged with some micro-band radiation patch (2), between micro-band radiation patch, be in series by feeder line (3), form respectively microstrip array at dielectric-slab tow sides, be provided with short circuit fastener (4) on dielectric-slab top, described short circuit fastener two ends are connected with the double-edged microstrip array of dielectric-slab upper end respectively, dielectric-slab lower end is provided with coaxial transmission line (6), the double-edged microstrip array of dielectric-slab lower end is connected with coaxial transmission line respectively.
2. a kind of broadband according to claim 1 rectangular microstrip array antenna, it is characterized in that described micro-band radiation patch (2) is for rectangle, micro-band radiation patch is arranged in a linear and is arranged on dielectric-slab positive and negative, and micro-band radiation patch (2) the sequence setting on dielectric-slab (1) tow sides, described short circuit fastener (4) one end is connected on the feeder line (3) of a microstrip array upper end of dielectric-slab, and the short circuit fastener other end is connected to micro-centre with radiation patch of dielectric-slab another side microstrip array upper end.
3. a kind of broadband according to claim 1 and 2 rectangular microstrip array antenna, is characterized in that described dielectric-slab (1) is made up of polytetrafluoroethylene glass-reinforced panel, and the length of dielectric-slab is 260mm, and width is 30mm, and thickness is 3mm.
4. a kind of broadband according to claim 2 rectangular microstrip array antenna, is characterized in that described micro-band radiation patch (2) is made of copper, and micro-band radiation patch length is 32.5mm, and width is 18mm, and thickness is 36 μ m.
5. a kind of broadband according to claim 1 and 2 rectangular microstrip array antenna, it is characterized in that being provided with air groove (5) on described dielectric-slab lower end, coaxial transmission line stretches in air groove, the inner wire of described coaxial transmission line is connected with dielectric-slab positive and negative microstrip array lower end respectively, and the outer conductor of coaxial transmission line is connected with dielectric-slab.
6. a kind of broadband according to claim 5 rectangular microstrip array antenna, is characterized in that described air groove (5) length is 20mm, and width is 6mm, and coaxial transmission line length is 18mm, and diameter is 6mm.
7. a kind of broadband according to claim 1 and 2 rectangular microstrip array antenna, the length that it is characterized in that described short circuit fastener (4) is 3mm, and radius is 0.8mm, and described feeder line (2) length is 40mm, and width is 2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420392000.6U CN204011730U (en) | 2014-07-15 | 2014-07-15 | A kind of broadband rectangular microstrip array antenna |
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| CN201420392000.6U CN204011730U (en) | 2014-07-15 | 2014-07-15 | A kind of broadband rectangular microstrip array antenna |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450698A (en) * | 2016-10-25 | 2017-02-22 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | High-gain plane micro-strip leaky-wave antenna |
| CN107437652A (en) * | 2016-05-26 | 2017-12-05 | 德尔福技术有限公司 | Antenna assembly with the available accurate beam elevation angle control on automotive vehicle |
| CN107611608A (en) * | 2017-09-14 | 2018-01-19 | 广东曼克维通信科技有限公司 | antenna element and array antenna |
| CN108075222A (en) * | 2016-11-07 | 2018-05-25 | 因派克伊莱克斯 | Vehicle environment wireless access communication antenna |
| CN109193146A (en) * | 2018-09-12 | 2019-01-11 | 北京工业大学 | A kind of micro-strip millimeter wave antenna |
| CN110311231A (en) * | 2018-03-27 | 2019-10-08 | 华为技术有限公司 | A kind of aerial array, the connection method of aerial array and radar module |
| CN110571519A (en) * | 2019-09-23 | 2019-12-13 | 广东盛路通信科技股份有限公司 | Double-frequency double-fed high-gain omnidirectional antenna |
| CN110808459A (en) * | 2019-09-27 | 2020-02-18 | 佛山市粤海信通讯有限公司 | Low-frequency oscillator of multi-frequency antenna |
-
2014
- 2014-07-15 CN CN201420392000.6U patent/CN204011730U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437652A (en) * | 2016-05-26 | 2017-12-05 | 德尔福技术有限公司 | Antenna assembly with the available accurate beam elevation angle control on automotive vehicle |
| CN106450698A (en) * | 2016-10-25 | 2017-02-22 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | High-gain plane micro-strip leaky-wave antenna |
| CN108075222A (en) * | 2016-11-07 | 2018-05-25 | 因派克伊莱克斯 | Vehicle environment wireless access communication antenna |
| DE102017102349B4 (en) | 2016-11-07 | 2022-05-12 | INFAC Elecs Co., Ltd | Antenna for communication by waves |
| CN107611608A (en) * | 2017-09-14 | 2018-01-19 | 广东曼克维通信科技有限公司 | antenna element and array antenna |
| CN110311231A (en) * | 2018-03-27 | 2019-10-08 | 华为技术有限公司 | A kind of aerial array, the connection method of aerial array and radar module |
| CN110311231B (en) * | 2018-03-27 | 2021-10-15 | 华为技术有限公司 | Antenna array, antenna array connection method and radar module |
| CN109193146A (en) * | 2018-09-12 | 2019-01-11 | 北京工业大学 | A kind of micro-strip millimeter wave antenna |
| CN110571519A (en) * | 2019-09-23 | 2019-12-13 | 广东盛路通信科技股份有限公司 | Double-frequency double-fed high-gain omnidirectional antenna |
| CN110808459A (en) * | 2019-09-27 | 2020-02-18 | 佛山市粤海信通讯有限公司 | Low-frequency oscillator of multi-frequency antenna |
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