CN104966908B - A kind of vertical polarization dielectric resonator antenna for base station - Google Patents
A kind of vertical polarization dielectric resonator antenna for base station Download PDFInfo
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- CN104966908B CN104966908B CN201510376354.0A CN201510376354A CN104966908B CN 104966908 B CN104966908 B CN 104966908B CN 201510376354 A CN201510376354 A CN 201510376354A CN 104966908 B CN104966908 B CN 104966908B
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Abstract
The invention discloses a kind of vertical polarization dielectric resonator antenna for base station, have many advantages, such as that small, simple in structure, wide bandwidth, radiation efficiency height, high gain, antenna pattern is stable, polarization purity is high, solves problem of the prior art.The vertical polarization dielectric resonator antenna for base station includes Rectangular Enclosure with Participating Media resonator, antenna circuit board, metal patch dielectric-slab, the first metal-loaded patch and the second metal-loaded patch；The Rectangular Enclosure with Participating Media resonator is arranged above the antenna circuit board, and the first metal-loaded patch is arranged above the Rectangular Enclosure with Participating Media resonator, and the second metal-loaded patch is arranged below the antenna circuit board；The Rectangular Enclosure with Participating Media resonator and two metal-loaded patches and between all there are spacing, the first metal-loaded patch and the second metal-loaded patches to be attached to respectively on corresponding metal patch dielectric-slab.
Description
Background technology
The present invention relates to a kind of suitable for FDD-LTE, the miniaturization medium resonator antenna unit of WCDMA communication system.
Technical field
With the continuous ripe of FDD-LTE technologies and granting that country is to FDD-LTE licence plates, China Mobile since then
Industry initially enters comprehensive 4G epoch.The antenna component one of most crucial as wireless communication system, the direct shadow of quality of performance
It rings and arrives entire communication network quality and user experience.There are mainly two types of the methods for realizing miniaturization antenna for base station design at present：The
A kind of is the element antenna using apex drive, and second is to use improved micro-strip paster antenna.The first feed structure
Complex with oscillator structure, difficulty of processing is big.Second of bandwidth is smaller, it is difficult to meet while cover multiple communications bands and want
It asks.
Invention content
The present invention provides a kind of vertical polarization dielectric resonator antenna for base station, has with miniaturization, high-gain, wide bandwidth
Point.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of vertical polarization dielectric resonator antenna for base station, including Rectangular Enclosure with Participating Media resonator, antenna circuit board, metal patch
Dielectric-slab, the first metal-loaded patch and the second metal-loaded patch；The Rectangular Enclosure with Participating Media resonator is arranged in the antenna electric
Above the plate of road, the first metal-loaded patch is arranged above the Rectangular Enclosure with Participating Media resonator, the second metal-loaded patch
Piece is arranged below the antenna circuit board；The Rectangular Enclosure with Participating Media resonator and two metal-loaded patches and between all there are
Away from the first metal-loaded patch and the second metal-loaded patch are attached to respectively on corresponding metal patch dielectric-slab.
Further, the antenna circuit back is equipped with microstrip feed line, and square is further opened on the antenna circuit board
Shape coupling slot, the Rectangular Enclosure with Participating Media resonator are located at the surface of rectangle coupling slot；
Further, the rectangle coupling slot is mutually perpendicular to the microstrip feed line, the microstrip feed line and rectangle coupling
Seam is all located at the medium position of antenna circuit board, and one end of the microstrip feed line is connected with antenna rf connector.
Further, using under micro-strip-cutler feed structure, the dielectric resonator is main radiator, described first
Metal-loaded patch and the second metal-loaded patch are parasitic radiator.
Further, the metal patch dielectric-slab width for being used to paste the second metal-loaded patch is lg=67mm ≈
0.44λ0；First metal-loaded patch width wp=44mm ≈, 0.29 λ0；The second metal-loaded patch width 1p=
65mm≈0.42λ0；Wherein, λ0Indicate center frequency wavelength.
Further, the spacing between the second metal-loaded patch and the antenna circuit board is h1=12mm；Institute
It is h to state the distance between Rectangular Enclosure with Participating Media resonator upper surface and the first metal-loaded patch lower surface2=6mm.
Further, the Rectangular Enclosure with Participating Media resonator relative dielectric constant is 12, long a, wide b, and high h sizes meet following
Relationship：
A=b=21mm, h=12mm；
The dielectric-slab of the antenna circuit board and the metal patch dielectric-slab are all made of high frequency plank FR4, thickness
1.6mm, relative dielectric constant 3.38.
Further, further include antenna structure frame, the antenna structure frame includes support column and supporting rack, support frame as described above
For hollow-core construction, support frame as described above upper and lower surface is all fixed with support column, and support frame as described above side is additionally provided with snap-gauge, institute
It states and is equipped with the antenna rf connector in snap-gauge, the antenna circuit board is located inside support frame as described above.
Further, the thickness of support frame as described above is 4.6mm, and width is 0.44 λ of lg=67mm ≈0。
Further, support frame as described above, antenna circuit board, metal patch dielectric-slab, the first metal-loaded patch and second
The upper and lower surface of metal-loaded patch is all square.
Compared with prior art, the present invention haing the following advantages：
(1) accomplish to minimize in volume of the present invention, convenient for integrated, the scope of application is wider；
(2) present invention use dielectric resonance for radiating principal, without surface wave loss and itself dielectric loss it is small, reduce
Ohmic loss；
(3) present invention using dielectric resonator as main radiator, metal-loaded patch be parasitic radiator, relative bandwidth compared with
Width, contain domestic FDD-LTE, WCDMA communication system main frequency range, practicability is stronger；
(4) high gain of the invention, swept area are wider；
(5) power capacity of the present invention is big, polarization purity is high；
(6) the included radio-frequency joint of the present invention can be integrated into unified component with active device, circuit；
(7) the configuration of the present invention is simple, of low cost, worth large-scale promotion use.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of vertical polarization medium resonator antenna of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is that a kind of vertical polarization medium resonator antenna of the present invention emulates S parameter figure.
Fig. 4 is a kind of vertical polarization medium resonator antenna of the present invention in 1.8GHz antenna patterns.
Fig. 5 is a kind of vertical polarization medium resonator antenna of the present invention in 1.9GHz antenna patterns.
Fig. 6 is a kind of vertical polarization medium resonator antenna of the present invention in 2GHz antenna patterns.
Fig. 7 is the vertical view of Fig. 1.
Fig. 8 is the front view of Fig. 1.
In above-mentioned attached drawing, the corresponding component names of reference numeral are as follows：
1- Rectangular Enclosure with Participating Media resonators, 2- antenna circuit boards, 3- the first metal-loaded patches, 4- the second metal-loaded patches,
5- antenna rf connectors, 6- support columns, 7- supporting racks, 8- metal patch dielectric-slabs.
Specific implementation mode
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of vertical polarization dielectric resonator base station day is provided
Line, with reference to embodiment, invention is further described in detail.
Embodiment
As shown in Fig. 1~8, a kind of vertical polarization dielectric resonator antenna for base station, the antenna for base station are present embodiments provided
Including Rectangular Enclosure with Participating Media resonator 1, antenna circuit board 2, antenna structure frame, metal patch dielectric-slab 8, the first metal-loaded patch 3
With the second metal-loaded patch 4.Wherein, Rectangular Enclosure with Participating Media resonator 1 is arranged above antenna circuit board 2, the first metal-loaded patch
Piece 3 is arranged above Rectangular Enclosure with Participating Media resonator 1, and the second metal-loaded patch 4 is arranged below antenna circuit board 2；Rectangular Enclosure with Participating Media
All there are spacing, the first metal-loaded patch 3 and the second metal-loaded patches between resonator 1 and two metal-loaded patches 3 and 4
Piece 4 is attached to respectively on corresponding metal patch dielectric-slab 8.Under using micro-strip-cutler feed structure, Rectangular Enclosure with Participating Media resonator is
Main radiator, the first metal-loaded patch and the second metal-loaded patch be parasitic radiator, three radiators respectively there are three
Resonance point when three resonant frequency points are close to each other, increase antenna relative bandwidth, meets the broadband requirement of antenna, the antenna energy
Enough be operated in the frequency range of 1.7GHz-2.2GHz, antenna frequencies 1.7 GHz-2.2GHz covering be FDD-LTE (4G),
The communications band of WCDMA (3G) communication system.Antenna in the present embodiment return loss within the scope of working frequency range is less than-
15dB, the energy for being reflected back source is seldom, and most energy transmissions have arrived destination, and efficiency of transmission is very high.
The relative dielectric constant of Rectangular Enclosure with Participating Media resonator is 12, long a, wide b, and high h sizes meet following relationship：A=b=
21mm, h=12mm.2 back side of antenna circuit board is equipped with microstrip feed line, and rectangle coupling is offered on the earth plate of antenna circuit board
Seam, medium substrate central symmetry of the rectangle coupling slot about circuit board, microstrip feed line are affixed on the back side of dielectric-slab, microstrip feed line
One end is connected with antenna rf connector 5.Rectangular Enclosure with Participating Media resonator is located above circuit board ground plane, also with regard to substrate center
Symmetrically.Rectangular Enclosure with Participating Media resonator length and width dimensions are equal, and feed gaps can be completely covered, by the Rectangular Enclosure with Participating Media resonance of cutler feed
Main radiator of the device as antenna.Rectangle coupling slot is mutually perpendicular to microstrip feed line, and microstrip feed line and rectangle coupling slot are all located at
One end of the medium position of antenna circuit board, microstrip feed line is connected with antenna rf connector 5.
Dielectric resonator it is upper and lower at a certain distance from, respectively place two identical relative dielectric constants dielectric-slab-metal
Paster media plate, the dielectric-slab and metal patch dielectric-slab 8 of antenna circuit board 2 are all made of high frequency plank FR4, thickness 1.6mm,
Relative dielectric constant is 3.38, and metal patch dielectric-slab width is 0.44 λ of lg=67mm ≈0。
The surface of metal patch dielectric-slab apply one layer of certain size metal layer, wherein be located above be first plus
Metal patch 3 is carried, underlying is the second metal-loaded patch 4；First metal-loaded patch, 3 width wp=44mm ≈
0.29λ0；Second metal-loaded patch, 4 width lp=65mm ≈, 0.42 λ0, the second metal-loaded patch 4 and antenna circuit board 2 it
Between spacing be h1=12mm；The distance between 3 lower surface of 1 upper surface of Rectangular Enclosure with Participating Media resonator and the first metal-loaded patch is
h2=6mm.First metal-loaded patch and the second metal-loaded patch are respectively as antenna parasitic radiation body portion；It is situated between by rectangle
The radiant section of matter resonator, upper and lower metal-loaded patch composition antenna, the feed of microstrip feed line, rectangle coupling slot as antenna
Part.
Antenna structure frame includes support column 6 and supporting rack 7, and preferred support column and supporting rack are made of plastics, support
Frame 7 is hollow-core construction, and 7 side of supporting rack is additionally provided with snap-gauge, antenna rf connector 5 is equipped in snap-gauge, and antenna circuit board 2 is located at branch
Inside support 7.7 upper and lower surface of supporting rack is all fixed with support column 6, and upper support column and lower support column are all 4, and every
Two adjacent lower support column positions correspond to, and are also corresponded to per two adjacent upper support column positions；Upper support column and lower support column
On same vertical plane, the horizontal face where lower support column is shorter than horizontal face where upper support column.
As shown in Figs. 4-6, it is micro-strip-slot to use radiator stepped construction, feed structure, and radiation pattern is steady
Fixed, symmetrical, the front and back ratio of antenna is very high, and back scattering is smaller, and the antenna in the present embodiment is in frequency band 1.7GHz-2.2GHz
Maximum gain is 7.5~8.6dBi, has high-gain, wide bandwidth and high stability compared with traditional sucrose resonant aerial.
According to above-described embodiment, the present invention can be realized well.It is worth noting that based on above-mentioned with micro-strip-seam coupling
It is same to solve above and below conjunction Fed Dielectric Resonator device, dielectric resonator under the premise of loaded microstrip metal patch structure design
Technical problem, even if making some in the present invention without substantive change or polishing, the essence of used technical solution is still
So as the present invention, therefore it should also be as within the scope of the present invention.
Claims (8)
1. a kind of vertical polarization dielectric resonator antenna for base station, which is characterized in that including Rectangular Enclosure with Participating Media resonator (1), antenna electric
Road plate (2), metal patch dielectric-slab (8), the first metal-loaded patch (3) and the second metal-loaded patch (4)；The rectangle is situated between
Above the antenna circuit board (2), the first metal-loaded patch (3) is arranged in the rectangle for matter resonator (1) setting
Above dielectric resonator (1), the second metal-loaded patch (4) setting is below the antenna circuit board (2)；The rectangle
All there are spacing, the first metal-loaded patches (3) and between dielectric resonator (1) and two metal-loaded patches (3,4)
Two metal-loaded patches (4) are attached to respectively on corresponding metal patch dielectric-slab (8)；
Antenna circuit board (2) back side is equipped with microstrip feed line, and rectangle coupling slot, institute are further opened on the antenna circuit board
State the surface that Rectangular Enclosure with Participating Media resonator (1) is located at rectangle coupling slot；
The rectangle coupling slot is mutually perpendicular to the microstrip feed line, and the microstrip feed line and rectangle coupling slot are all located at antenna electric
One end of the medium position of road plate, the microstrip feed line is connected with antenna rf connector (5).
2. a kind of vertical polarization dielectric resonator antenna for base station according to claim 1, which is characterized in that using micro-
Under band-cutler feed structure, the Rectangular Enclosure with Participating Media resonator is main radiator, the first metal-loaded patch and the second load
Metal patch is parasitic radiator.
3. according to a kind of vertical polarization dielectric resonator antenna for base station of claim 1~2 any one of them, which is characterized in that
Metal patch dielectric-slab (8) width for pasting the second metal-loaded patch (4) is 0.44 λ of lg=67mm ≈0；Described
One metal-loaded patch (3) width wp=44mm ≈, 0.29 λ0；Second metal-loaded patch (4) the width lp=65mm ≈
0.42λ0；Wherein, λ0Indicate center frequency wavelength.
4. a kind of vertical polarization dielectric resonator antenna for base station according to claim 3, which is characterized in that described second adds
It is h1=12mm to carry the spacing between metal patch (4) and the antenna circuit board (2)；On the Rectangular Enclosure with Participating Media resonator (1)
The distance between surface and first metal-loaded patch (3) lower surface are h2=6mm.
5. a kind of vertical polarization dielectric resonator antenna for base station according to claim 4, which is characterized in that the rectangle is situated between
Matter resonator (1) relative dielectric constant is 12, long a, wide b, and high h sizes meet following relationship：
A=b=21mm, h=12mm；
The dielectric-slab and the metal patch dielectric-slab (8) of the antenna circuit board (2) are all made of high frequency plank FR4, thickness
1.6mm, relative dielectric constant 3.38.
6. a kind of vertical polarization dielectric resonator antenna for base station according to claim 5, which is characterized in that further include antenna
Structure-steel framing, the antenna structure frame include support column (6) and supporting rack (7), and support frame as described above (7) is hollow-core construction, the branch
Support (7) upper and lower surface is all fixed with support column (6), and support frame as described above (7) side is additionally provided with snap-gauge, in the snap-gauge
Equipped with the antenna rf connector (5), it is internal that the antenna circuit board (2) is located at support frame as described above (7).
7. a kind of vertical polarization dielectric resonator antenna for base station according to claim 6, which is characterized in that support frame as described above
(7) thickness is 4.6mm, and width is 0.44 λ of lg=67mm ≈0。
8. a kind of vertical polarization dielectric resonator antenna for base station according to claim 7, which is characterized in that support frame as described above
(7), antenna circuit board (2), metal patch dielectric-slab (8), the first metal-loaded patch (3) and the second metal-loaded patch (4)
Upper and lower surface be all square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376354.0A CN104966908B (en) | 2015-04-28 | 2015-07-01 | A kind of vertical polarization dielectric resonator antenna for base station |
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| CN201510207029 | 2015-04-28 | ||
| CN2015102070291 | 2015-04-28 | ||
| CN201510376354.0A CN104966908B (en) | 2015-04-28 | 2015-07-01 | A kind of vertical polarization dielectric resonator antenna for base station |
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| CN104966908A CN104966908A (en) | 2015-10-07 |
| CN104966908B true CN104966908B (en) | 2018-07-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216915B (en) * | 2017-06-30 | 2021-04-20 | 南宁富桂精密工业有限公司 | Antenna and antenna array |
| CN108075217B (en) * | 2018-01-19 | 2024-04-09 | 武汉波诺电子科技有限公司 | Novel omnidirectional antenna |
| CN108400428B (en) * | 2018-03-13 | 2023-11-24 | 广东通宇通讯股份有限公司 | Method and device for improving front-to-back ratio of base station antenna |
| CN109599661B (en) * | 2018-11-26 | 2020-08-14 | 广东三水合肥工业大学研究院 | Ceramic antenna with controllable directivity |
| CN113410618A (en) * | 2021-06-02 | 2021-09-17 | 深圳市信维通信股份有限公司 | Broadband high-gain antenna structure and electronic equipment |
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