CN208570923U - The rectangular slot ultra wideband antenna of coplanar wave guide feedback - Google Patents
The rectangular slot ultra wideband antenna of coplanar wave guide feedback Download PDFInfo
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- CN208570923U CN208570923U CN201720988675.0U CN201720988675U CN208570923U CN 208570923 U CN208570923 U CN 208570923U CN 201720988675 U CN201720988675 U CN 201720988675U CN 208570923 U CN208570923 U CN 208570923U
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- copper sheet
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- floor
- symmetry axis
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Abstract
The utility model discloses a kind of rectangular slot ultra wideband antennas of coplanar wave guide feedback, including rectangular fluting, impedance matching structure and the medium substrate on coplanar waveguide transmission line, square metal ring, metal floor.The rectangular gap broadband antenna of coplanar wave guide feedback is square metal ring feed by coplanar waveguide transmission line, and is radiated by the gap between the rectangular fluting of square metal ring and floor；Impedance matching structure makes this antenna have wider impedance bandwidth.The utility model have the characteristics that unique structure be compact, easy to microwave integrated circuit it is integrated and convenient for planographic process, can be used widely in wireless communication field.
Description
Technical field
The utility model relates to a kind of 5th antenna technologies with mobile communication field wireless telecom equipment more particularly to one
The rectangular slot ultra wideband antenna of kind coplanar wave guide feedback.
Background technique
As the next-generation mobile communications that mobile communication demand after the year two thousand twenty that faces the future is come into being, the 5th Dai Yidong
Communication introduces new wireless transmissions technology and architecture on forth generation based mobile communication, excavates new frequency resource, makes
Obtaining the following mobile radio network professional ability including the 5th third-generation mobile communication will be promoted in three dimensions.Compared with
It in terms of four third-generation mobile communications, either capacity, transmission rate or accessibility and reliability, all has a clear superiority, realizes
Amalgamation network truly.Therefore, the 5th third-generation mobile communication has started the heat of the research in domestic and international mobile communication field
Tide becomes mostly important one of the task of China's information technology and industry future development.
As the antenna for emitting and receiving electromagnetic wave signal, operating frequency range also will affect mobile communications network covering
And service quality." the pass 450MHz-5GHz that Country Radio Monitoring Center and national mobile communication system association announce in 2014
Injection section frequency spectrum resource assessment report " in the result shows that, China is in 5GHhZ correlated frequency section below, especially in 1.3GHz-
1.4 GHz, 1.4GHz-1.427GHz, the frequency bands such as 1.427GHz-1.527GHz, utilization rate is all very low, and side reflects this
The utilization rate of a little frequency bands has biggish room for promotion.How to improve antenna correlation frequency range utilization rate is also that the movement of the 5th generation is logical
Believe problem to be solved.It is exactly to widen operating frequency of antenna to solve one of the method for problems, to reach practical occupancy
Frequency spectrum is less, to effectively improve the availability of frequency spectrum of mobile communication wireless electricity electric wave；In addition, the width of the beamwidth of antenna is also shadow
One of an important factor for ringing message transmission rate and capacity.
5th third-generation mobile communication in terms of transmission rate, by with the forth generation mobile communication typical user of 100Mbps it
On, promote 10 to 100 times；In terms of capacity, it will be above forth generation mobile communication and realize unit area mobile data flow 1000
Times.Realizing that capacity and transmission rate increase most straightforward approach is exactly to increase bandwidth.Developing broad-band antenna can be improved for the 5th generation
The capacity and data transmission rate of mobile communication, in addition, it is long to possess transmission range in the band Wide antenna compared with low-frequency range, penetrate and around
It is good to penetrate ability, is not easy the advantages that climate environment influences, while effective use 5GHz correlated frequency section below, expands and moves
Dynamic communication network area coverage.Therefore, research and development 5GHz will also promote the hair of the 5th third-generation mobile communication compared with the broad-band antenna of low-frequency range
Exhibition.
Utility model content:
The purpose of this utility model is that super for the rectangular gap that the 5th third-generation mobile communication provides a kind of coplanar wave guide feedback
Broad-band antenna, the side on the outer edge and metal floor of the rectangular slot ultra wideband antenna square metal ring of the coplanar wave guide feedback
Shape fluting forms gap between inside edge, realizes impedance matching and electromagenetic wave radiation；In addition, rectangular slot antenna low section itself
The characteristics of make antenna have unique structure compact, be conducive to planographic processing and the features such as commercial applications.
The purpose of this utility model is achieved through the following technical solutions: a kind of rectangular gap ultra wide of coplanar wave guide feedback
Antenna, the rectangular slot ultra wideband antenna of the coplanar wave guide feedback applied to the 5th third-generation mobile communication field, including co-planar waveguide
Transmission line, square metal ring, the rectangular fluting on metal floor, matching impedance structure and medium substrate.Wherein, co-planar waveguide passes
Defeated line, folded antenna, the rectangular fluting and impedance matching structure on floor are all located at the top surface of medium substrate, medium substrate
Bottom surface is without adhering to any metal.
The coplanar waveguide transmission line, the metal floor copper sheet including center rectangle copper sheet and center copper sheet two sides.
Center rectangle copper sheet is equal with the distance between the metal floor copper sheet of center copper sheet two sides；One end of center rectangle copper sheet
For connecting radio circuit, an at T-shaped contact of metal edges shape of the other end and square metal ring, T shape contact is located at rectangular gold
Belong to the center of a metal edges of ring；Remaining copper sheet of coplanar waveguide transmission line two sides metal floor copper sheet and metal floor
Connect；Aperture is carried out on metal floor reserves a rectangular fluting；The rectangular fluting is symmetrical with the center line extended line
Axis, square groove two sides parallel with symmetry axis are equidistant with symmetry axis, and another two sides of square groove are vertical with symmetry axis；Gold
Possession plate is not connect with other metal structures in antenna；
The square metal ring is connected by the metal strip of same size of two metal strips of different size and two
Connect composition；Two of them metal strip of same size is parallel to each other and parallel with the symmetry axis；Two gold of different size
Belong to strip to be parallel to each other and vertical with the symmetry axis；The outer edge and the metal of four metal strips of square metal ring
There is certain distance between direction fluting inside edge on plate；Two relatively narrow metal strips of square metal ring with it is rectangular on floor
The distance between fluting is identical；A metal strip of the square metal ring of the at T-shaped connection of shape is connect with coplanar waveguide transmission line
The distance between rectangular fluting on metal floor is smaller；On another metal strip and metal floor of square metal ring
The distance between rectangular fluting is larger；Seam is formed between rectangular fluting inside edge on the outer edge and floor of square metal ring
Gap plays impedance matching and radiation effects in Antenna Operation；
The impedance matching structure, including two length are identical, and width is also described in identical metal copper sheet and right 2
Symmetry axis is parallel.Two length of the impedance matching structure are identical, also identical metal copper sheet is located at square metal to width
Ring inside edge is formed by square opening；Two length of the impedance matching structure are identical, width also identical metallic copper
One end of skin metal strip vertical connection vertical with symmetry axis with one of square metal ring, the two of the impedance matching structure
Length is identical, width also the other end of identical metal copper sheet it is vertical with symmetry axis with another of square metal ring and with
There is same distance between the metal strip of the at T-shaped connection of coplanar waveguide transmission line shape；Two of the impedance matching structure are long
Spending identical, width, also identical metal copper sheet and metal strip parallel with the symmetry axis in becket are parallel to each other；Institute
Two length for stating impedance matching structure are identical, also identical metal copper sheet and the symmetry axis are equidistant width.
Antenna described in the utility model can be used as the 5th antenna with mobile communication field wireless telecom equipment, by coplanar
Waveguide feed transmission line is that square metal ring is fed, and improves the transmission performance of transmission line；And pass through square metal ring and ground
Gap between the rectangular fluting of plate carries out radiation and medium substrate bottom surface is without adhering to any metal；In addition, coplanar wave guide feedback
Rectangular slot ultra wideband antenna attachment medium substrate relative dielectric constant it is relatively small.Metal on entire medium substrate
Copper sheet structure is using coplanar waveguide transmission line center line extended line as symmetry axis, and antenna structure is with the symmetry axis at symmetrical structure.
Compared with prior art, the utility model has the following advantages that and technical effect:
(1) the rectangular slot ultra wideband antenna of above-mentioned coplanar wave guide feedback passes through square metal ring and the rectangular fluting in floor
Between gap radiated, its operating frequency range has been widened, so that the frequency band of antenna broadens, it is possible to reduce when practical application
The number of required antenna.
(2) the rectangular slot ultra wideband antenna of above-mentioned coplanar wave guide feedback uses the lesser medium base of relative dielectric constant
The copper sheet of plate, medium substrate and its attachment is the whole height of antenna, therefore antenna has compared with low section.
(3) the rectangular slot ultra wideband antenna of above-mentioned coplanar wave guide feedback is transmitted for signal using co-planar waveguide
Transmission line, and coplanar waveguide transmission line, the rectangular fluting on square metal ring, metal floor, impedance matching structure common point
In the top surface of medium substrate, so that antenna compact overall structure saves manufacturing time convenient for printing processing.
Detailed description of the invention
Fig. 1 is the rectangular slot ultra wideband antenna overlooking structure diagram of coplanar wave guide feedback.
Fig. 2 is the rectangular slot ultra wideband antenna cross-sectional structure schematic diagram of coplanar wave guide feedback.
Fig. 3 is the rectangular slot ultra wideband antenna return loss frequency response curve of coplanar wave guide feedback.
Fig. 4 is the frequency gain curve of the rectangular slot ultra wideband antenna of coplanar wave guide feedback.
Fig. 5 (a) is the E- plane radiating directivity figure of 1GHz.
Fig. 5 (b) is the H- plane radiating directivity figure of 1GHz.
Fig. 5 (c) is the E- plane radiating directivity figure of 1.8GHz.
Fig. 5 (d) is the H- plane radiating directivity figure of 1.8GHz.
Fig. 5 (e) is the E- plane radiating directivity figure of 2.4GHz.
Fig. 5 (f) is the H- plane radiating directivity figure of 2.4GHz.
Specific embodiment
It elaborates with reference to the accompanying drawing to the utility model, but the implementation and protection of the utility model are not limited to
This.
Embodiment
As depicted in figs. 1 and 2, it can be used as the rectangular gap day in the 5th broadband with mobile communication field wireless telecom equipment
Line is square metal ring feed by coplanar waveguide transmission line, and passes through the seam between the rectangular fluting of square metal ring and floor
Gap is radiated.The rectangular slot ultra wideband antenna of coplanar wave guide feedback includes coplanar waveguide transmission line, square metal ring, metal
Rectangular fluting on floor, impedance matching structure and medium substrate.Wherein, coplanar waveguide transmission line is by center rectangle copper sheet
1, the metal floor copper sheets 8 of center copper sheet two sides transmits signal；Square metal ring is by two metal strips of different size
2,4 and two metal strips 3,5 of same size are constituted；Constituting impedance matching structure includes metal copper sheet 6 and metal copper sheet 7,
Impedance matching as antenna；Medium substrate is then the lesser substrate 9 of relative dielectric constant.
As coplanar waveguide transmission line, the metal floor copper sheet 8 including center rectangle copper sheet 1 and center copper sheet two sides.
Center rectangle copper sheet 1 is equal with the distance between the metal floor copper sheet 8 of center copper sheet two sides；Center rectangle copper sheet 1
One end is located at side for connecting radio circuit, an at T-shaped contact of 2 shape of metal edges of the other end and square metal ring, T shape contact
The center of one metal edges 2 of shape becket；Its of coplanar waveguide transmission line two sides metal floor copper sheet 8 and metal floor
Remaining copper sheet connects；Aperture is carried out on metal floor reserves a rectangular fluting；The rectangular fluting is with the center line extended line
For symmetry axis, square groove two sides parallel with symmetry axis are equidistant with symmetry axis, another two sides of square groove and symmetry axis
Vertically；Metal floor 8 is not connect with other metal structures in antenna；
Above-mentioned square metal ring is by two 2,4 and two metal strips of same size of metal strip of different size
3,5 connect and compose；Two of them metal strip 3,5 of same size is parallel to each other and parallel with the symmetry axis；Two width
Different metal strips 2,4 is parallel to each other and the symmetry axis with described in is vertical；Four metal strips 2 of square metal ring, 3,4,
There is certain distance between direction fluting inside edge on 5 outer edge and the metal floor；Two of square metal ring are relatively narrow
Metal strip 3,5 is identical as the distance between rectangular fluting on floor；The at T-shaped connection of shape is connect with coplanar waveguide transmission line
The distance between one metal strip 2 of square metal ring and rectangular fluting on metal floor are smaller；Square metal ring it is another
The distance between one metal strip 4 and rectangular fluting on metal floor are larger；On the outer edge and floor of square metal ring
Rectangular fluting inside edge between formed gap 10, play impedance matching and radiation effects in Antenna Operation；
Above-mentioned impedance matching structure, including two length are identical, width also identical metal copper sheet 6,7 and institute in right 2
It is parallel to state symmetry axis.Two length of the impedance matching structure are identical, width also identical metal copper sheet 6,7 be located at it is rectangular
Becket inside edge is formed by square opening 11；Two length of the impedance matching structure are identical, width is also identical
One end of metal copper sheet 6,7 metal strip 4 vertical connection vertical with symmetry axis with one of square metal ring, the impedance
Two length of mating structure are identical, width also another of the other end of identical metal copper sheet 6,7 and square metal ring with
Symmetry axis it is vertical and formed between the metal strip 2 that T shape connect with coplanar waveguide transmission line with same distance；The impedance
Two length of mating structure are identical, also identical metal copper sheet 6,7 is parallel with the symmetry axis with becket for width
Metal strip 3,5 is parallel to each other；Two length of the impedance matching structure are identical, width also identical metal copper sheet 6,7 with
The symmetry axis is equidistant；
Above-mentioned medium substrate 9 has lower relative dielectric constant, and 9 top surface of medium substrate is attached with center rectangle copper sheet
1 and center copper sheet two sides metal floor copper sheet 8 constitute coplanar waveguide transmission line, metal copper sheet 2,3,4,5 constitute it is rectangular
Becket and the metal copper sheet 6,7 for constituting impedance matching structure.And the bottom surface of medium substrate 9 is without adhering to any metal.
The vertical thickness of medium substrate 9 is 0.8mm, length 180mm, width 140mm, and relative dielectric constant is
2.55.Length positioned at the center rectangle copper sheet 1 of 9 top surface of medium substrate is 21mm, width 11mm, center rectangle copper sheet
The metal floor copper sheet 8 of 1 longer both sides and center copper sheet two sides is at a distance of the gap 0.3mm.Constitute the two wide of square metal ring
The width for spending different metal strips 2,4 is 10.4mm, 10mm, and length is 79mm；Constitute the two of square metal ring
Item metal strip 3,5 of same size is 1mm, and length is that the metal copper sheet 3,5 of 54.6mm is connected.Center rectangular copper
Being between skin 1 and metal copper sheet 2 is 11mm by length, and the copper sheet connecting line that width is 3mm connects.Connect with coplanar waveguide transmission line
Connect metal strip 2 for the square metal ring of the at T-shaped connection of shape and the distance between rectangular fluting on metal floor compared with
It is small, at a distance of the gap 3mm, and the distance between the rectangular fluting on another metal strip 4 of square metal ring and metal floor
It is larger, at a distance of the gap 10mm；The relatively narrow metal strip 3,5 of two of square metal ring and the distance between the rectangular fluting on floor
It is identical, at a distance of the gap 8mm.Square opening 11 is formed by positioned at square metal ring inside edge and constitutes the gold of impedance matching structure
Belong to copper sheet 6,7, length is 50mm, and width is 3mm, at a distance of 5mm between metal copper sheet 6,7.
Using the resulting result of parameters such as Fig. 3, Fig. 4, Fig. 5 (a), the Fig. 5 (b), Fig. 5 (c), Fig. 5 implemented in illustration
(d), shown in Fig. 5 (e) and Fig. 5 (f):
It can according to the return loss frequency response curve of the rectangular slot ultra wideband antenna of Fig. 3 coplanar wave guide feedback simulated
Know, is about that the return loss of antenna is in -10dB hereinafter, bandwidth is between 0.9241-2.6095GHz in frequency
1.6854GHz, relative bandwidth are about 95.4%, and showing the utility model antenna can be in the wider frequency band of frequency band just
Often work.
As shown in figure 4, the frequency gain curve of the rectangular slot ultra wideband antenna for coplanar wave guide feedback, according to emulation
Obtained curve image is it is found that in frequency between 1.0G-2.6GHz, and the gain of antenna is all larger than 3.75dB, wherein in frequency
For 1.15GHz, the gain near 2.15GHz, 2.55GHz is relatively high, meets the work of the 5th third-generation mobile communication field inner part
Frequency requirement, and there is preferable performance within the scope of this band frequency.
In view of the Frequency point of antenna relatively broad application in the 5th third-generation mobile communication field, Fig. 5 shows in frequency
Rate is 1GHz, the directional diagram under 1.8GHz, 2.4GHz.Since the polarization mode of the rectangular slot antenna in broadband is linear polarization,
The curve of corresponding Fig. 4 is respectively that the face E is main polarization and cross polarization, and the face H is main polarization and cross polarization.By Fig. 4 image it is found that
The main polarization directional diagram in the face E is mainly in figure of eight shape, has certain directionality, and as the increase image of frequency is without biggish
It changes, cross polarization is gradually increased with the increase of frequency, is changed little.From Fig. 4 image, the main polarization directional diagram master in the face H
Will be in " O " word shape, without apparent directionality, and as the increase of frequency does not distort, 0 ° -360 ° of radiation all
Preferably, but cross polarization is larger, and as the increase of frequency is gradually increased, and changes larger.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (2)
1. a kind of rectangular slot ultra wideband antenna of coplanar wave guide feedback, which is characterized in that including coplanar waveguide transmission line, rectangular
Rectangular fluting, impedance matching structure and medium substrate on becket, metal floor, the coplanar waveguide transmission line, rectangular gold
Belong to ring and rectangular fluting on metal floor and impedance matching structure is all located at the top surface of medium substrate；
Metallic copper skin structure on entire medium substrate is using coplanar waveguide transmission line center line extended line as symmetry axis, antenna structure
With the symmetry axis at symmetrical structure；
The coplanar waveguide transmission line includes the metal floor copper sheet of center rectangle copper sheet and center copper sheet two sides；Center is rectangular
Shape copper sheet is equal with the distance between the floor copper sheet of two sides；One end of center rectangle copper sheet is for connecting radio circuit, separately
One at T-shaped contact of metal edges shape of one end and square metal ring, T shape contact are located in a metal edges of square metal ring
At heart point；Coplanar waveguide transmission line two sides metal floor copper sheet connects with remaining copper sheet of metal floor；It is carried out on metal floor
Aperture reserves a rectangular fluting；For the rectangular fluting using the center line extended line as symmetry axis, square groove and symmetry axis are flat
Two capable sides are equidistant with symmetry axis, and another two sides of square groove are vertical with symmetry axis；
The square metal ring is connected and composed by two metal strips of different size and two metal strips of same size；Two
Item metal strip of same size is parallel to each other and parallel with symmetry axis；Two metal strips of different size be parallel to each other and in
Symmetry axis is vertical；Direction fluting inside edge on the outer edges of four metal strips of square metal ring and the metal floor it
Between have certain distance；Two relatively narrow metal strips of square metal ring are identical as the distance between rectangular fluting on floor；With
The metal strip and the rectangular fluting on metal floor that coplanar waveguide transmission line connects the square metal ring of the at T-shaped connection of shape
The distance between it is smaller；The distance between rectangular fluting on another metal strip of square metal ring and metal floor compared with
Greatly；Gap is formed between rectangular fluting inside edge on the outer edge and floor of square metal ring；
Matching impedance structure includes that two length are identical, also identical metal copper sheet is parallel with the symmetry axis for width；It is described
Two length of impedance matching structure are identical, also identical metal copper sheet is located at the square metal ring inside edge side of being formed by width
In shape aperture；Two length of the impedance matching structure are identical, width also one end of identical metal copper sheet and square metal
The metal strip vertical connection vertical with symmetry axis of one of ring, two length of the impedance matching structure are identical, width
The other end of identical metal copper sheet it is vertical with symmetry axis with another of square metal ring and with coplanar waveguide transmission line shape
There is same distance between the metal strip of at T-shaped connection；Two length of the impedance matching structure are identical, width is also identical
Metal copper sheet and metal strip parallel with the symmetry axis in becket it is parallel to each other；The two of the impedance matching structure
Length is identical, also identical metal copper sheet and the symmetry axis are equidistant width.
2. the rectangular slot ultra wideband antenna of coplanar wave guide feedback according to claim 1, which is characterized in that in medium base
All metallic copper skin structures of the top surface attachment antenna of plate, the non-cohesive any metal copper sheet in the bottom surface of medium substrate, medium substrate
And its copper sheet of attachment is the whole height of antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988675.0U CN208570923U (en) | 2017-08-09 | 2017-08-09 | The rectangular slot ultra wideband antenna of coplanar wave guide feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988675.0U CN208570923U (en) | 2017-08-09 | 2017-08-09 | The rectangular slot ultra wideband antenna of coplanar wave guide feedback |
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| Publication Number | Publication Date |
|---|---|
| CN208570923U true CN208570923U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720988675.0U Expired - Fee Related CN208570923U (en) | 2017-08-09 | 2017-08-09 | The rectangular slot ultra wideband antenna of coplanar wave guide feedback |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425278A (en) * | 2017-08-09 | 2017-12-01 | 华南理工大学 | The square slot ultra wideband antenna of coplanar wave guide feedback |
| CN112952376A (en) * | 2021-01-29 | 2021-06-11 | 佛山蓝谱达科技有限公司 | Broadband millimeter wave antenna unit and antenna array |
-
2017
- 2017-08-09 CN CN201720988675.0U patent/CN208570923U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425278A (en) * | 2017-08-09 | 2017-12-01 | 华南理工大学 | The square slot ultra wideband antenna of coplanar wave guide feedback |
| CN112952376A (en) * | 2021-01-29 | 2021-06-11 | 佛山蓝谱达科技有限公司 | Broadband millimeter wave antenna unit and antenna array |
| CN112952376B (en) * | 2021-01-29 | 2024-04-19 | 佛山蓝谱达科技有限公司 | Broadband millimeter wave antenna unit and antenna array |
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| CF01 | Termination of patent right due to non-payment of annual fee |