CN207753169U - A kind of super-broadband graded gap circular polarization microstrip antenna - Google Patents
A kind of super-broadband graded gap circular polarization microstrip antenna Download PDFInfo
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Abstract
The utility model discloses a kind of super-broadband graded gap circular polarization microstrip antennas, including square medium substrate, head-on radiation metal layer, back side feed metal layer and two pairs of passive element capacitances, inductance.Wherein, head-on radiation metal layer includes square-shaped metal frame, first to fourth foliaceous patch and first to fourth strip patch；Back side feed metal layer feeds the upper layer line of rabbet joint as feed element；Head-on radiation metal layer and back side feed metal layer are connected equipped with plated-through hole；Two pairs of passive element capacitances, inductance are placed in head-on radiation metal layer center.The utility model proposes super-broadband graded gap circular polarization microstrip antenna realize the circular polarization radiation function of covering S-band, there are the advantages such as small, simple, the good, high gain of ultra wide band, radiation directivity of feed, have a good application prospect.
Description
Technical field
The utility model is related to electronic communication fields, more particularly to a kind of super-broadband graded gap circular polarization microstrip antenna.
Background technology
Microstrip antenna have many advantages, such as low section, it is light-weight, easily conformal, easily integrate with active device, but traditional one
As shape microstrip antenna there are one intrinsic disadvantage be exactly that working band is too narrow, relative bandwidth about only have a few percent.
Super-broadband tech is with most competitive as one the advantages that its high-performance, high-speed, low-power consumption, low cost
One of hot technology.Super wideband wireless communication system in addition to requiring antenna to have good impedance bandwidth, goes back ultra-wideband antenna
It is required that high efficiency, fixed phase center, low profile, are easy to feed etc., this proposes very high to the design of ultra-wideband antenna
It is required that.Gradual change slot antenna realizes Slow-wave effect by the tapered slot being etched on dielectric-slab, and in the mistake of transmission electromagnetic wave
Line of rabbet joint radiation energy in journey by gradually opening.Gradual change slot antenna in very wide frequency band have good port match,
Stable gain, similar width and symmetrical face face directional diagram, it is light-weight, easy to process and integrated the advantages that, thus it is extensive
Applied to fields such as radio astronomy, Ground Penetrating Radar, ultra-wideband communications, ultra-wideband imagings.
Circular polarized antenna has the following advantages compared with linear polarized antenna：The interference of cloud and mist and rainwater can be resisted；In electronics
In confrontation, the radio wave of the various linear polarizations and elliptic polarization mode of enemy can be interfered and investigated；It is swung mounted on violent
On the aircraft of rolling, signal can be received under any state；Signal fadeout caused by multipath transmisstion can be eliminated.By
More than circular polarized antenna has the advantages that, obtained widely in fields such as satellite communication, telemetering, remote sensing, radar, radio and television
Using.
Utility model content
Technical problem to be solved in the utility model is provided a kind of super for defect involved in background technology
Broadband gradual change gap circular polarization microstrip antenna has small, feed letter, it can be achieved that covering the circular polarization radiation function of S-band
The advantages such as the good, high gain of list, ultra wide band, radiation directivity.
The utility model uses following technical scheme to solve above-mentioned technical problem：
A kind of super-broadband graded gap circular polarization microstrip antenna, including square medium substrate, setting are in square medium substrate
Positive radiation metal layer, be arranged the feed metal layer at the square medium substrate back side, the first to the second capacitance and first to
Second inductance；
The radiation metal layer includes square-shaped metal frame, first to fourth foliaceous patch and first to fourth length
Strip patch；
The periphery of the square-shaped metal frame and the square medium substrate is correspondingly arranged；
The root of the first to fourth foliaceous patch is separately positioned on the midpoint on four side of square-shaped metal frame,
Blade tip is directed to the center of square-shaped metal frame, and double fluting exponential fade line of rabbet joint structures are formed between two neighboring foliaceous patch
At region；
One end of the first to fourth strip patch is separately positioned on four angles of square-shaped metal frame, the other end
It is directed to the center of square-shaped metal frame；
The first to the second capacitance, the first to the second inductance are passive element, wherein the first to the second capacitance is arranged
On a diagonal line of square-shaped metal frame, the first to the second inductance is arranged enables a diagonal line in square-shaped metal frame
On, and the center of square-shaped metal frame is equal to the distance between the first capacitance, the second capacitance, the first inductance, the second inductance；
By the first inductance connection between the first foliaceous patch, the second foliaceous patch, the second foliaceous patch,
By the first capacitance connection between third blade shape patch, pass through second between third blade shape patch, quaterfoil shape patch
Inductance connection passes through the second capacitance connection between quaterfoil shape patch, the first foliaceous patch；
The feed metal layer includes the first fed patch and the second fed patch, first fed patch, the second feedback
Electric patch is strip；
One end of first fed patch is correspondingly arranged at the blade tip of the first foliaceous patch, which is provided with use
In the metallization VIA for the blade tip for connecting the first foliaceous patch, the other end is connected with one end of the second feed blade；
The other end setting of second fed patch corresponds to third blade shape patch root in the square medium substrate
On the midpoint of the length of side in portion, and the axis of second fed patch, the axis of first patch, the first foliaceous patch
The straight line that the blade tip of blade tip and third blade shape patch is linked to be is on the same straight line.
As a kind of super-broadband graded further prioritization scheme of gap circular polarization microstrip antenna of the utility model, described
The length of one fed patch is more than the length of the second fed patch, and the broadband of the first fed patch is less than the second fed patch
Width.
The invention also discloses another super-broadband graded gap circular polarization microstrip antennas, including rectangular medium base
Plate, be arranged the positive radiation metal layer of square medium substrate, be arranged the square medium substrate back side feed metal layer, first
To the second capacitance and the first to the second inductance；
The radiation metal layer includes square-shaped metal frame, first to fourth foliaceous patch and first to fourth length
Strip patch；
The periphery of the square-shaped metal frame and the square medium substrate is correspondingly arranged；
The root of the first to fourth foliaceous patch is separately positioned on the midpoint on four side of square-shaped metal frame,
Blade tip is directed to the center of square-shaped metal frame, and double fluting exponential fade line of rabbet joint structures are formed between two neighboring foliaceous patch
At region；
One end of the first to fourth strip patch is separately positioned on four angles of square-shaped metal frame, the other end
It is directed to the center of square-shaped metal frame；
The first to the second capacitance, the first to the second inductance are passive element, wherein the first to the second capacitance is arranged
On a diagonal line of square-shaped metal frame, the first to the second inductance is arranged enables a diagonal line in square-shaped metal frame
On, and the center of square-shaped metal frame is equal to the distance between the first capacitance, the second capacitance, the first inductance, the second inductance；
By the first capacitance connection between the first foliaceous patch, the second foliaceous patch, the second foliaceous patch,
By the first inductance connection between third blade shape patch, pass through second between third blade shape patch, quaterfoil shape patch
Capacitance connection passes through the second inductance connection between quaterfoil shape patch, the first foliaceous patch；
The feed metal layer includes the first fed patch and the second fed patch, first fed patch, the second feedback
Electric patch is strip；
One end of first fed patch is correspondingly arranged at the blade tip of the first foliaceous patch, which is provided with use
In the metallization VIA for the blade tip for connecting the first foliaceous patch, the other end is connected with one end of the second feed blade；
The other end setting of second fed patch corresponds to third blade shape patch root in the square medium substrate
On the midpoint of the length of side in portion, and the axis of second fed patch, the axis of first patch, the first foliaceous patch
The straight line that the blade tip of blade tip and third blade shape patch is linked to be is on the same straight line.
As the super-broadband graded further prioritization scheme of gap circular polarization microstrip antenna of the another kind, first feed
The length of patch is more than the length of the second fed patch, and the broadband of the first fed patch is less than the width of the second fed patch.
The utility model has the following technical effects using above technical scheme is compared with the prior art：
The utility model can realize left-handed entelechy by changing the relative position of two pairs of passive element capacitances, inductance
Change the conversion with right-handed circular polarization；When the placement order of two pairs of passive element capacitances, inductance is clockwise since upper left side
When rotation is [capacitance, inductance, capacitance, inductance] respectively, the Research of Antenna Polarization is left-hand circular polarization；When two pairs of passive elements
Capacitance, inductance placement order rotated clockwise since upper left side when being [inductance, capacitance, inductance, capacitance] respectively, antenna pole
Change mode is right-handed circular polarization.The impedance bandwidth for the super-broadband graded gap circular polarization microstrip antenna that the utility model is proposed and
The circular polarization radiation function of covering S-band may be implemented in axial ratio bandwidth, with small, feed is simple, ultra wide band, radiation direction
The advantages such as the good, high gain of property, have a good application prospect.
Description of the drawings
Fig. 1 is the system construction drawing of the utility model；
The operating diagram that Fig. 2 is the Research of Antenna Polarization when being left-hand circular polarization；
The operating diagram that Fig. 3 is the Research of Antenna Polarization when being right-handed circular polarization；
Fig. 4 is antenna return loss simulation result schematic diagram；
Fig. 5 is antenna axial ratio simulation result schematic diagram；
Fig. 6 is antenna gain simulation result schematic diagram；
Fig. 7（a）, Fig. 7（b）, Fig. 7（c）, Fig. 7（d）Respectively t=0, t=T/4, t=T/2, t=3T/4 when the Research of Antenna Polarization
For left-hand circular polarization when Surface current distribution schematic diagram；
Fig. 8（a）, Fig. 8（b）, Fig. 8（c）, Fig. 8（d）Respectively t=0, t=T/4, t=T/2, t=3T/4 when the Research of Antenna Polarization
For right-handed circular polarization when Surface current distribution schematic diagram.
In figure, 1- square medium substrates, 2- head-on radiation metal layers, the back sides 3- feed metal layer, 4- plated-through holes, 5-
Inductance.
Specific implementation mode
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings：
The utility model can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.
On the contrary, thesing embodiments are provided so that the disclosure is thorough and complete, and this reality will be given full expression to those skilled in the art
With novel range.In the accompanying drawings, for the sake of clarity it is exaggerated component.
As shown in Figure 1, the utility model discloses a kind of super-broadband graded gap circular polarization microstrip antenna, including rectangular Jie
Matter substrate, be arranged the positive radiation metal layer of square medium substrate, be arranged the square medium substrate back side feed metal layer,
The first to the second capacitance and the first to the second inductance；
The radiation metal layer includes square-shaped metal frame, first to fourth foliaceous patch and first to fourth length
Strip patch；
The periphery of the square-shaped metal frame and the square medium substrate is correspondingly arranged；
The root of the first to fourth foliaceous patch is separately positioned on the midpoint on four side of square-shaped metal frame,
Blade tip is directed to the center of square-shaped metal frame, and double fluting exponential fade line of rabbet joint structures are formed between two neighboring foliaceous patch
At region；
One end of the first to fourth strip patch is separately positioned on four angles of square-shaped metal frame, the other end
It is directed to the center of square-shaped metal frame；
The first to the second capacitance, the first to the second inductance are passive element, wherein the first to the second capacitance is arranged
On a diagonal line of square-shaped metal frame, the first to the second inductance is arranged enables a diagonal line in square-shaped metal frame
On, and the center of square-shaped metal frame is equal to the distance between the first capacitance, the second capacitance, the first inductance, the second inductance.
The first to the second inductance, the first to the second capacitance connection relation may be used it is following two in one kind, respectively
Realize left-hand circular polarization and right-handed circular polarization：
The first：Pass through the first inductance connection, the second blade between the first foliaceous patch, the second foliaceous patch
By the first capacitance connection between shape patch, third blade shape patch, lead between third blade shape patch, quaterfoil shape patch
The second inductance connection is crossed, passes through the second capacitance connection between quaterfoil shape patch, the first foliaceous patch；
Second：Pass through the first capacitance connection, the second blade between the first foliaceous patch, the second foliaceous patch
By the first inductance connection between shape patch, third blade shape patch, lead between third blade shape patch, quaterfoil shape patch
The second capacitance connection is crossed, passes through the second inductance connection between quaterfoil shape patch, the first foliaceous patch.
The feed metal layer includes the first fed patch and the second fed patch, first fed patch, the second feedback
Electric patch is strip；
One end of first fed patch is correspondingly arranged at the blade tip of the first foliaceous patch, which is provided with use
In the metallization VIA for the blade tip for connecting the first foliaceous patch, the other end is connected with one end of the second feed blade；
The other end setting of second fed patch corresponds to third blade shape patch root in the square medium substrate
On the midpoint of the length of side in portion, and the axis of second fed patch, the axis of first patch, the first foliaceous patch
The straight line that the blade tip of blade tip and third blade shape patch is linked to be is on the same straight line.
The length of first fed patch is preferentially more than the length of the second fed patch, and the broadband of the first fed patch
The preferential width for being less than the second fed patch.
The square medium substrate material is Rogers RT5880, and size 60mm*60mm*0.508mm, Fig. 4 give
The return loss simulation result schematic diagram of the antenna, the results showed that the impedance bandwidth of the antenna is 2.0-6.2GHz（4.2GHz
102.4%）, operating frequency of antenna covers S-band and part C-band, realizes ultra wide band.Fig. 5 gives the axis ratio of the antenna
Simulation result schematic diagram, the results showed that the axial ratio bandwidth of the antenna is 2.1-4.1GHz（2GHz, 64.5%）.Fig. 6 gives the day
The gain simulation result schematic diagram of line, gain of the antenna within the scope of 2.0-6.2GHz are 2.88-5.51dB.
Two pairs of passive element capacitances, the placement order of inductance are different, and left-hand circular polarization and dextrorotation may be implemented in antenna
The conversion of circular polarisation；As shown in Fig. 2, when two pairs of passive element capacitances, inductance placement order since upper left side up time
When needle rotation is [capacitance, inductance, capacitance, inductance] respectively, the Research of Antenna Polarization is left-hand circular polarization, Fig. 7（a）To Fig. 7（d）It gives
Surface current distribution schematic diagram when the Research of Antenna Polarization is left-hand circular polarization when having gone out t=0, t=T/4, t=T/2, t=3T/4；Such as
Shown in Fig. 3, it is [electricity respectively when the placement order of two pairs of passive element capacitances, inductance is rotated clockwise since upper left side
Sense, capacitance, inductance, capacitance] when, the Research of Antenna Polarization is right-handed circular polarization, Fig. 8（a）To Fig. 8（d）Give t=0, t=T/4, t
Surface current distribution schematic diagram when the Research of Antenna Polarization is left-hand circular polarization when=T/2, t=3T/4.
The impedance bandwidth and axial ratio bandwidth for the super-broadband graded gap circular polarization microstrip antenna that the utility model is proposed can
To realize the circular polarization radiation function of covering S-band, with small, feed is simple, ultra wide band, radiation directivity are good, gain
High advantage, has a good application prospect.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With meaning identical with the general understanding of the those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with the meaning of idealization or too formal come
It explains.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of super-broadband graded gap circular polarization microstrip antenna, which is characterized in that including square medium substrate, be arranged rectangular
The positive radiation metal layer of medium substrate, be arranged the feed metal layer at the square medium substrate back side, the first to the second capacitance, with
And the first to the second inductance；
The radiation metal layer includes square-shaped metal frame, first to fourth foliaceous patch and first to fourth strip
Patch；
The periphery of the square-shaped metal frame and the square medium substrate is correspondingly arranged；
The root of the first to fourth foliaceous patch is separately positioned on the midpoint on four side of square-shaped metal frame, blade tip
It is directed to the center of square-shaped metal frame, and forms what double fluting exponential fade line of rabbet joint were constituted between two neighboring foliaceous patch
Region；
One end of the first to fourth strip patch is separately positioned on four angles of square-shaped metal frame, and the other end refers both to
To the center of square-shaped metal frame；
The first to the second capacitance, the first to the second inductance are passive element, wherein the first to the second capacitance is arranged just
On one diagonal line of square metal frame, enabling on a diagonal line in square-shaped metal frame is arranged in the first to the second inductance, and
The center of square-shaped metal frame is equal to the distance between the first capacitance, the second capacitance, the first inductance, the second inductance；
Pass through the first inductance connection, the second foliaceous patch, third between the first foliaceous patch, the second foliaceous patch
By the first capacitance connection between foliaceous patch, pass through the second inductance between third blade shape patch, quaterfoil shape patch
Connection, passes through the second capacitance connection between quaterfoil shape patch, the first foliaceous patch；
The feed metal layer includes the first fed patch and the second fed patch, first fed patch, the second feed patch
Piece is strip；
One end of first fed patch is correspondingly arranged at the blade tip of the first foliaceous patch, which is provided with for connecting
The metallization VIA of the blade tip of the first foliaceous patch is connect, the other end is connected with one end of the second feed blade；
The other end of second fed patch is arranged corresponds to third blade shape patch root in the square medium substrate
On the midpoint of the length of side, and the blade tip of the axis of second fed patch, the axis of first patch, the first foliaceous patch
The straight line being linked to be with the blade tip of third blade shape patch is on the same straight line.
2. super-broadband graded gap circular polarization microstrip antenna according to claim 1, which is characterized in that first feed
The length of patch is more than the length of the second fed patch, and the broadband of the first fed patch is less than the width of the second fed patch.
3. a kind of super-broadband graded gap circular polarization microstrip antenna, which is characterized in that including square medium substrate, be arranged rectangular
The positive radiation metal layer of medium substrate, be arranged the feed metal layer at the square medium substrate back side, the first to the second capacitance, with
And the first to the second inductance；
The radiation metal layer includes square-shaped metal frame, first to fourth foliaceous patch and first to fourth strip
Patch；
The periphery of the square-shaped metal frame and the square medium substrate is correspondingly arranged；
The root of the first to fourth foliaceous patch is separately positioned on the midpoint on four side of square-shaped metal frame, blade tip
It is directed to the center of square-shaped metal frame, and forms what double fluting exponential fade line of rabbet joint were constituted between two neighboring foliaceous patch
Region；
One end of the first to fourth strip patch is separately positioned on four angles of square-shaped metal frame, and the other end refers both to
To the center of square-shaped metal frame；
The first to the second capacitance, the first to the second inductance are passive element, wherein the first to the second capacitance is arranged just
On one diagonal line of square metal frame, enabling on a diagonal line in square-shaped metal frame is arranged in the first to the second inductance, and
The center of square-shaped metal frame is equal to the distance between the first capacitance, the second capacitance, the first inductance, the second inductance；
Pass through the first capacitance connection, the second foliaceous patch, third between the first foliaceous patch, the second foliaceous patch
By the first inductance connection between foliaceous patch, pass through the second capacitance between third blade shape patch, quaterfoil shape patch
Connection, passes through the second inductance connection between quaterfoil shape patch, the first foliaceous patch；
The feed metal layer includes the first fed patch and the second fed patch, first fed patch, the second feed patch
Piece is strip；
One end of first fed patch is correspondingly arranged at the blade tip of the first foliaceous patch, which is provided with for connecting
The metallization VIA of the blade tip of the first foliaceous patch is connect, the other end is connected with one end of the second feed blade；
The other end of second fed patch is arranged corresponds to third blade shape patch root in the square medium substrate
On the midpoint of the length of side, and the blade tip of the axis of second fed patch, the axis of first patch, the first foliaceous patch
The straight line being linked to be with the blade tip of third blade shape patch is on the same straight line.
4. super-broadband graded gap circular polarization microstrip antenna according to claim 3, which is characterized in that first feed
The length of patch is more than the length of the second fed patch, and the broadband of the first fed patch is less than the width of the second fed patch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721740538.1U CN207753169U (en) | 2017-12-14 | 2017-12-14 | A kind of super-broadband graded gap circular polarization microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740538.1U CN207753169U (en) | 2017-12-14 | 2017-12-14 | A kind of super-broadband graded gap circular polarization microstrip antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978868A (en) * | 2017-12-14 | 2018-05-01 | 南京航空航天大学 | A kind of super-broadband graded gap circular polarization microstrip antenna |
| CN113097710A (en) * | 2021-03-30 | 2021-07-09 | 大连理工大学 | Dual-mode circularly polarized frequency reconfigurable antenna |
| CN115020975A (en) * | 2022-08-09 | 2022-09-06 | 中信科移动通信技术股份有限公司 | Circularly polarized gradient double-slotted antenna and control method thereof |
-
2017
- 2017-12-14 CN CN201721740538.1U patent/CN207753169U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978868A (en) * | 2017-12-14 | 2018-05-01 | 南京航空航天大学 | A kind of super-broadband graded gap circular polarization microstrip antenna |
| CN107978868B (en) * | 2017-12-14 | 2023-12-01 | 南京航空航天大学 | Ultra-wideband gradual change gap circularly polarized microstrip antenna |
| CN113097710A (en) * | 2021-03-30 | 2021-07-09 | 大连理工大学 | Dual-mode circularly polarized frequency reconfigurable antenna |
| CN113097710B (en) * | 2021-03-30 | 2022-09-06 | 大连理工大学 | Dual-mode circularly polarized frequency reconfigurable antenna |
| CN115020975A (en) * | 2022-08-09 | 2022-09-06 | 中信科移动通信技术股份有限公司 | Circularly polarized gradient double-slotted antenna and control method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ARIZON RFID TECHNOLOGY (YANGZHOU) Co.,Ltd. Assignor: Nanjing University of Aeronautics and Astronautics Contract record no.: 2019320000109 Denomination of utility model: Ultra-wideband gradual change seam circularly polarized microstrip antenna Granted publication date: 20180821 License type: Common License Record date: 20190416 |
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Granted publication date: 20180821 Effective date of abandoning: 20231201 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180821 Effective date of abandoning: 20231201 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |