CN109066071A - A kind of Compact type broadband flexibility microstrip antenna - Google Patents
A kind of Compact type broadband flexibility microstrip antenna Download PDFInfo
- Publication number
- CN109066071A CN109066071A CN201810384895.1A CN201810384895A CN109066071A CN 109066071 A CN109066071 A CN 109066071A CN 201810384895 A CN201810384895 A CN 201810384895A CN 109066071 A CN109066071 A CN 109066071A
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- Prior art keywords
- medium plate
- radiation patch
- microstrip
- radiation
- patch
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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
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention proposes a kind of Compact type broadband flexibility microstrip antennas, under the premise of guaranteeing antenna pattern directionality, realize miniaturization, including first medium plate and second medium plate stacked on top of one another, two dielectric-slabs are all made of flexible material, wherein the upper surface of first medium plate is printed with the first radiation patch, first radiation patch, which is used, is each provided with the Minkowski fractal structure of rectangular notch in the center on four sides, and the size of four rectangular notches is identical, wherein the geometric center of the first radiation patch is coaxial with the geometric center of first medium plate and second medium plate, the microstrip-fed line that the upper surface of second medium plate is printed with the second radiation patch and connect with the patch, lower surface is printed with radiation floor.The present invention effectively inhibits the deterioration of antenna pattern, realizes miniaturization, can be applied to radio frequency identification, radar and wireless communication.
Description
Technical field
The invention belongs to antenna technical field more particularly to a kind of Compact type broadband flexibility microstrip antennas, can be used for radio frequency
Identification, radar and the reception and transmitting that wirelessly communicate the electromagnetic wave in broadband.
Background technique
In recent years, for flexible antennas due to its low cost, small in size, saving space is easy of integration excellent with flexibility of design etc.
Point is attracted extensive attention in wireless communication field, and flexible antennas is made to become current research hot spot.Ink-jet technology is as a kind of efficient
Electronic circuit manufacture method, since it has the characteristics that contactless, no pressure, and fabrication cycle is short, and good production is more
Functional and low cost, be widely used potential in flexible antennas design.
While wireless communication technique develops, the integrated level of mobile communication equipment is higher and higher, wants to the size of component
It sums and requires also to be increasingly stringenter with the integrated level of equipment, Important Components of the antenna as mobile communication equipment front end are small
The requirement of type and high integration is also increasingly prominent.In the past few decades, microstrip antenna is due to its planar structure, low section
The advantages that easily integrating with electronic equipment, obtains comparable concern, and the bandwidth of microstrip antenna refers to that antenna is being able to satisfy design
Specifeca tion speeification in the frequency range of index request, such as input impedance, directional diagram, gain, main lobe width and minor level
Deng under normal circumstances, antenna performance parameters vary with frequency.
However traditional microstrip antenna, since impedance bandwidth is smaller, volume is bigger than normal, to limit answering for microstrip antenna
It with range, use it can not in multiple platforms, can not also be used in a platform multiband.Increase bandwidth simply and effectively side
Method is the thickness for increasing medium and the relative permittivity value for reducing substrate, but dielectric thickness crosses conference and causes the bright of surface wave
Aobvious excitation increases antenna volume, and may excite some higher modes in thickness direction, this can reduce radiation efficiency, make to radiate
Directional diagram deteriorates, and carrys out some problems to feed strip.When the thickness of the medium substrate of microstrip antenna only has 0.005 operation wavelength
When, the working frequency of microstrip antenna is almost concentrated on a frequency point, it is also difficult to realize broadband microstrip antenna.Therefore how to realize
It is a critical issue urgently to be resolved that microstrip antenna, which effectively improves the impedance bandwidth of antenna under the premise of minimizing,.
Microstrip antenna is that the antenna for adding conductor sheet and being formed is pasted on the dielectric substrate with conductor earth plate, and utilization is micro-
Band line or coaxial feeding have motivated radio frequency electromagnetic field between conductor patch and earth plate, and have passed through patch surrounding and ground connection
Gap between plate is to external radiation.Such as application publication number is 106816713 A of CN, it is entitled " minimized wide-band microstrip antenna "
Patent application, disclose a kind of minimized wide-band microstrip antenna antenna, radiating curtain is located at upper layer medium substrate upper surface, and
It being connect by the metallization VIA on top dielectric plate with metal floor, microstrip feed line is located at the lower surface of layer dielectric substrate,
And be connected with feeding point, it is etched with rectangular aperture on metal floor, passes through the rectangular aperture couple feed to radiating curtain.The hair
Bright to use multilayered structure, radiation patch is array format, the impedance bandwidth of antenna is effectively increased, however, to ensure that radiation side
To the directionality of figure, its minor lobe is reduced, selected media plate thickness are too big, and the overall dimensions for resulting in antenna are bigger than normal, reach
40.2mm × 28mm × 4mm so that the antenna miniaturization degree is inadequate, and is not easy and integration of equipments.
Summary of the invention
It is an object of the invention to overcome the problems of the above-mentioned prior art, it is micro- to propose a kind of Compact type broadband flexibility
Band antenna realizes miniaturization under the premise of guaranteeing the directionality of antenna pattern.
A kind of Compact type broadband flexibility microstrip antenna should including first medium plate 2 and second medium plate 4 stacked on top of one another
Two dielectric-slabs are all made of flexible material；The upper surface of the first medium plate 2 is printed with the first radiation patch 1, first spoke
It penetrates patch 1 and uses Minkowski fractal structure；The upper surface of the second medium plate 4 be printed with the second radiation patch 3 and with this
The microstrip-fed line 5 of patch connection, lower surface is printed with radiation floor 6.
A kind of above-mentioned Compact type broadband flexibility microstrip antenna, the first medium plate 2 use Other substrate materials, and its entirety
Size is less than the overall dimensions of second medium plate 4.
A kind of above-mentioned Compact type broadband flexibility microstrip antenna, first radiation patch 1, using the center on four sides
It is each provided with the rectangular configuration of rectangular notch, the size of four rectangular notches is identical, and the geometric center of the patch is situated between with first
The geometric center of scutum 2 is coaxial.
A kind of above-mentioned Compact type broadband flexibility microstrip antenna, second radiation patch 3 are situated between using geometric center with second
The coaxial rectangular configuration of 4 geometric center of scutum, size is identical as the outer dimension of the first radiation patch 1, and second radiation
Patch 3 is parallel with the long side of the first radiation patch 1.
A kind of above-mentioned Compact type broadband flexibility microstrip antenna, the second medium plate 4 use flexible thin-film material, geometry
Center is coaxial with the geometric center of first medium plate 2.
A kind of above-mentioned Compact type broadband flexibility microstrip antenna, the microstrip-fed line 5 are made of two sections of microstrip lines, wherein with
The width of the connected microstrip line of second radiation patch 2 is greater than the width of another section of microstrip line.
A kind of above-mentioned Compact type broadband flexibility microstrip antenna, the second medium plate 4, the second radiation of upper surface printing
The radiation floor 6 of patch 3 and lower surface printing, is realized using ink-jet mode.
Compared with the prior art, the invention has the following advantages:
1. the present invention is using first medium plate and second medium plate multilayered structure stacked on top of one another, first medium plate 2 and the
The thickness of second medium plate 4 is only 0.002 operation wavelength, by between the first radiation patch and the second radiation patch of same size
Coupling, change the mode of propagation of surface wave, inhibit the minor lobe of antenna pattern, ensure that the direction of antenna pattern
Property, realize miniaturization, and S11 is less than -10dB in 4.79~5.04GHz frequency range.
2. the first radiation patch of the invention uses the Minkowski of the center setting rectangular notch on four sides to divide
Shape structure can extend the conducting path of electric current, obtain compact antenna structure, further reduced the size of antenna.
3. the present invention prints radiating element and radiation ground in fexible film dielectric-slab upper and lower surface using ink-jet mode respectively
Plate belongs to develop on flexible material for the first time and realizes broadband microstrip antenna, makes antenna easily and integration of equipments.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention；
Fig. 2 is the first radiation patch structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the second radiation patch structural schematic diagram of the embodiment of the present invention；
Fig. 4 is the S11 simulation result diagram of the embodiment of the present invention；
Fig. 5 is the antenna pattern of the Different Plane of the embodiment of the present invention.
Specific embodiment
In the following with reference to the drawings and specific embodiments, present invention is further described in detail:
Referring to Fig.1, the invention proposes a kind of Compact type broadband flexibility microstrip antennas, including first medium stacked on top of one another
Plate 2 and second medium plate 4, the thickness of the two media plate only have 0.002 operation wavelength, realize the miniaturization of antenna, and
And first medium plate 2 and the placement stacked on top of one another of 4 dielectric-slab of second medium plate, the bandwidth of antenna can be effectively widened, realizes broadband
Microstrip antenna.
First medium plate 2 selects SU-8 Other substrate materials, relative dielectric constant εr=2.9, overall dimensions be 30mm ×
26mm × 0.12mm, second medium plate 4 select Kapton flexible thin-film material, relative dielectric constant εr=3.4, with a thickness of
0.125mm, and the overall dimensions of second medium plate 4 are greater than the overall dimensions of first medium plate 2, wherein the first radiation patch 1 prints
System is printed on second medium in 2 upper surface of first medium plate, the second radiation patch 3 and the microstrip-fed line 4 connecting with the patch
The upper surface of plate 4, and the lower surface of second medium plate 4 is printed with radiation floor 6.
Under normal circumstances, patch width can be calculated by microstrip line microstrip antenna formula, expression formula are as follows:
Wherein c represents the light velocity, f0For working frequency, εrThe relative dielectric constant for representing medium can be seen that day by the formula
Line resonance frequency f0With εr -1/2Directly proportional therefore fixed for one frequency uses the dielectric substrate of high dielectric constant can be with
The size for effectively reducing antenna realizes the design of antenna miniaturization.
The present invention gives 3 input signal of the second radiation patch by feed line 6, and then coupling is radiated the first radiation patch
Piece 1 keeps antenna in running order.When the outer dimension of the size and the second radiation patch 3 of the first radiation patch 1 is inconsistent
When, antenna pattern can be only 0.002 operation wavelength due to the thickness of dielectric-slab, although reducing antenna to a certain extent
Size, but the minor lobe of antenna pattern increase, be further degrading antenna pattern, when the first radiation patch 1 size with
When the outer dimension of second radiation patch 3 is consistent, after electromagnetic wave is radiated the first radiation patch 4 by coupling, effectively inhibit
Due to media plate thickness be only 0.002 operation wavelength caused by antenna pattern minor lobe, both realized the miniaturization of antenna,
In turn ensure the directionality of antenna pattern.
Referring to Fig. 2, the geometric center of the first radiation patch 1 is coaxial with the geometric center of first medium plate 2, using first
The Minkowski fractal structure of rectangular notch, and the ruler of four rectangular notches is respectively arranged in the center on 1 four sides of radiation patch
Very little identical, the length L2=6.5mm of rectangular notch, width W2=3mm, the Minkowski fractal structure can extend electric current
Conducting path obtains compact antenna structure, further reduced the size of antenna.
Referring to Fig. 3, the second radiation patch 3 rectangular configuration coaxial with 4 geometric center of second medium plate using geometric center,
In order to guarantee the directionality of antenna pattern, the outer dimension phase of the size and the first radiation patch 1 of the second radiation patch 3 is selected
Together, and the long side of two rectangles is parallel, wherein the length L1=20mm of the second radiation patch 3, width W1=16mm, with the second spoke
The microstrip-fed line 5 for penetrating the connection of patch 3 is made of two sections of microstrip lines, wherein the width for the microstrip line being connected with the second radiation patch 2
Spend W3=1mm, length L3=4mm, the width W4=0.7mm of another section of microstrip line, length L4=5mm.
Below in conjunction with emulation experiment, technical effect of the invention is explained；
1, emulation content
1.1 carry out simulation calculation using S11 parameter of the business simulation software HFSS_13.0 to above-described embodiment, as a result such as
Shown in Fig. 4.
1.2 carry out simulation calculation using far field radiation pattern of the business simulation software HFSS_13.0 to above-described embodiment,
As a result as shown in Figure 5, in which: Fig. 5 a is XOZ surface radiation directional diagram of the embodiment antenna in 4.9GHz, and Fig. 5 b is embodiment antenna
In the YOZ surface radiation directional diagram of 4.9GHz.
2, simulation result
Referring to Fig. 4, using S11 < -10dB as standard, the impedance bandwidth of antenna is 4.79GHz~5.40GHz, phase in embodiment
It is 12% to bandwidth.
It is XOZ surface radiation directional diagram of the embodiment in 4.9GHz referring to Fig. 5, Fig. 5 a, Fig. 5 b is embodiment 4.9GHz's
YOZ surface radiation directional diagram.Always perpendicular to radiating element surface, maximum gain is greatest irradiation direction in embodiment
4.5dBi。
The above simulation result explanation, line of the invention have ideal impedance bandwidth and antenna pattern.
Claims (7)
1. a kind of Compact type broadband flexibility microstrip antenna, which is characterized in that including first medium plate (2) stacked on top of one another and second
Dielectric-slab (4), two dielectric-slabs are all made of flexible material；The upper surface of the first medium plate (2) is printed with the first radiation
Patch (1), first radiation patch (1) use Minkowski fractal structure；It prints the upper surface of the second medium plate (4)
The microstrip-fed line (5) for having the second radiation patch (3) and connecting with the patch, lower surface are printed with radiation floor (6).
2. a kind of Compact type broadband flexibility microstrip antenna according to claim 1, which is characterized in that the first medium plate
(2) Other substrate materials are used, and its overall dimensions is less than the overall dimensions of second medium plate (4).
3. a kind of Compact type broadband flexibility microstrip antenna according to claim 1, which is characterized in that the first radiation patch
Piece (1) is each provided with the rectangular configuration of rectangular notch using the center on four sides, and the size of four rectangular notches is identical,
And the geometric center of the patch is coaxial with the geometric center of first medium plate (2).
4. a kind of Compact type broadband flexibility microstrip antenna according to claim 3, which is characterized in that the second radiation patch
Piece (3), using the geometric center rectangular configuration coaxial with second medium plate (4) geometric center, size and the first radiation patch
(1) outer dimension is identical, and second radiation patch (3) is parallel with the long side of the first radiation patch (1).
5. according to a kind of Compact type broadband flexibility microstrip antenna described in claim 1, which is characterized in that the second medium plate
(4) flexible thin-film material is used, geometric center is coaxial with the geometric center of first medium plate (2).
6. a kind of Compact type broadband flexibility microstrip antenna according to claim 1, which is characterized in that the microstrip-fed line
(5) it is made of two sections of microstrip lines, wherein the width for the microstrip line being connected with the second radiation patch (2) is greater than another section of microstrip line
Width.
7. a kind of Compact type broadband flexibility microstrip antenna according to claim 1, which is characterized in that the second medium plate
(4), the radiation floor (6) of the second radiation patch (3) of upper surface printing and lower surface printing, is realized using ink-jet mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384895.1A CN109066071A (en) | 2018-04-26 | 2018-04-26 | A kind of Compact type broadband flexibility microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384895.1A CN109066071A (en) | 2018-04-26 | 2018-04-26 | A kind of Compact type broadband flexibility microstrip antenna |
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| Publication Number | Publication Date |
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| CN109066071A true CN109066071A (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810384895.1A Pending CN109066071A (en) | 2018-04-26 | 2018-04-26 | A kind of Compact type broadband flexibility microstrip antenna |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380202A (en) * | 2019-07-05 | 2019-10-25 | 上海安费诺永亿通讯电子有限公司 | A kind of low cost low section broadband Massive mimo antenna unit |
| CN110797640A (en) * | 2019-11-07 | 2020-02-14 | 西安电子工程研究所 | Ka frequency band broadband low-profile dual-linear polarization microstrip antenna based on high-frequency lamination technology |
| CN110880637A (en) * | 2019-12-06 | 2020-03-13 | 长安大学 | 24GHz miniaturized radar antenna |
| CN111628291A (en) * | 2020-07-07 | 2020-09-04 | 福建省汇创新高电子科技有限公司 | Miniaturized broadband full-network antenna applied to 5G mobile communication |
| CN111799552A (en) * | 2020-07-23 | 2020-10-20 | 河北工业大学 | Low-cost embedded wearable antenna |
| CN112886232A (en) * | 2019-11-30 | 2021-06-01 | 华为技术有限公司 | Electronic device |
| CN113097706A (en) * | 2021-03-18 | 2021-07-09 | 西安电子科技大学 | Flexible broadband dipole wearable graphene antenna |
| CN114361810A (en) * | 2022-01-26 | 2022-04-15 | 西安电子科技大学 | Broadband low-scattering dual-frequency microstrip antenna |
| CN114725670A (en) * | 2022-04-27 | 2022-07-08 | 上海应用技术大学 | Microstrip double-layer rectangular antenna structure for structural health monitoring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040104852A1 (en) * | 2002-11-29 | 2004-06-03 | Choi Won Kyu | Microstrip patch antenna and array antenna using supertrate |
| CN102437412A (en) * | 2010-05-10 | 2012-05-02 | 泰科电子公司 | Wireless communication system |
| CN106410395A (en) * | 2016-09-19 | 2017-02-15 | 四川大学 | Metamaterial rectification surface |
-
2018
- 2018-04-26 CN CN201810384895.1A patent/CN109066071A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040104852A1 (en) * | 2002-11-29 | 2004-06-03 | Choi Won Kyu | Microstrip patch antenna and array antenna using supertrate |
| CN102437412A (en) * | 2010-05-10 | 2012-05-02 | 泰科电子公司 | Wireless communication system |
| CN106410395A (en) * | 2016-09-19 | 2017-02-15 | 四川大学 | Metamaterial rectification surface |
Non-Patent Citations (1)
| Title |
|---|
| 李文涛: ""超宽带天线设计及共形阵列综合研究"", 《中国博士学位论文全文数据库》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380202A (en) * | 2019-07-05 | 2019-10-25 | 上海安费诺永亿通讯电子有限公司 | A kind of low cost low section broadband Massive mimo antenna unit |
| CN110797640A (en) * | 2019-11-07 | 2020-02-14 | 西安电子工程研究所 | Ka frequency band broadband low-profile dual-linear polarization microstrip antenna based on high-frequency lamination technology |
| CN110797640B (en) * | 2019-11-07 | 2021-09-07 | 西安电子工程研究所 | Ka frequency band broadband low-profile dual-linear polarization microstrip antenna based on high-frequency lamination technology |
| CN112886232A (en) * | 2019-11-30 | 2021-06-01 | 华为技术有限公司 | Electronic device |
| CN112886232B (en) * | 2019-11-30 | 2022-10-11 | 华为技术有限公司 | Electronic device |
| CN110880637A (en) * | 2019-12-06 | 2020-03-13 | 长安大学 | 24GHz miniaturized radar antenna |
| CN111628291A (en) * | 2020-07-07 | 2020-09-04 | 福建省汇创新高电子科技有限公司 | Miniaturized broadband full-network antenna applied to 5G mobile communication |
| CN111799552A (en) * | 2020-07-23 | 2020-10-20 | 河北工业大学 | Low-cost embedded wearable antenna |
| CN111799552B (en) * | 2020-07-23 | 2022-11-08 | 河北工业大学 | Low-cost embedded wearable antenna |
| CN113097706A (en) * | 2021-03-18 | 2021-07-09 | 西安电子科技大学 | Flexible broadband dipole wearable graphene antenna |
| CN114361810A (en) * | 2022-01-26 | 2022-04-15 | 西安电子科技大学 | Broadband low-scattering dual-frequency microstrip antenna |
| CN114725670A (en) * | 2022-04-27 | 2022-07-08 | 上海应用技术大学 | Microstrip double-layer rectangular antenna structure for structural health monitoring |
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Application publication date: 20181221 |