CN112054302A - Spread spectrum antenna based on vertical oscillator - Google Patents
Spread spectrum antenna based on vertical oscillator Download PDFInfo
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- CN112054302A CN112054302A CN202011002752.3A CN202011002752A CN112054302A CN 112054302 A CN112054302 A CN 112054302A CN 202011002752 A CN202011002752 A CN 202011002752A CN 112054302 A CN112054302 A CN 112054302A
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- vertical oscillator
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- 238000001228 spectrum Methods 0.000 title claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 230000005855 radiation Effects 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 8
- 230000010287 polarization Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 abstract description 5
- 238000010295 mobile communication Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- 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
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention discloses a spread spectrum antenna based on an upright vibrator, which comprises an antenna radiation unit and a reflecting plate, wherein the antenna radiation unit comprises four upright vibrator arms, a dielectric substrate and a feed structure, the upright vibrator arms comprise horizontal arms and vertical arms, the upper surface of the reflecting plate is provided with a skirt edge, and the antenna radiation unit is positioned in the skirt edge. Four or eight radiation patches are arranged above the antenna radiation unit, so that the spread spectrum antenna can realize different dual-polarized bandwidths, the isolation degree on each bandwidth can basically reach more than 30dB, and the gain is more than 8 dBi.
Description
Technical Field
The invention relates to the field of communication, in particular to a spread spectrum antenna based on an upright oscillator.
Background
With the rapid development of mobile communication technology, the development and utilization of new frequency band is particularly important, and the 1427 + 1515MHz frequency band has been applied to IMT (international mobile communication) service in japan, and in europe, 25 european union countries support the 1415 + 1515MHz band for IMT service, and germany and italy have sold the central 1452 + 1442MHz band to IMT service. French, Ireland and Slownia consult the auction 1452-1442MHz for IMT services at the Cellpus regulatory body. At present, there are 2G, 3G, LTE (4G) and 5G systems in China, the 2G system uses 1710-. With the development of mobile communication technology, the requirement of bandwidth is more and more important, different mobile systems occupy different frequency bands, and if the same antenna can cover multiple system frequency bands, the manufacturing cost can be reduced, the space utilization is improved, the economic benefit is increased, and greater value is achieved. Therefore, the newly designed and installed broadband antenna simultaneously covers 1427-1515MHz and 1710-2655MHz and simultaneously supports IMT service and different mobile communication systems, so as to achieve greater economic benefit.
At present, a planar broadband base station antenna can cover the bandwidth of 2G and 3G, LTE (4G) systems, and does not have a planar broadband base station antenna which simultaneously covers the IMT service frequency band. If a pair of antennas can work in a plurality of communication systems, the number of the antennas can be reduced; the plane structure is beneficial to reducing the complexity of the antenna without using a coupling unit, and the miniaturization of the communication equipment is realized.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention provides a spread spectrum antenna based on a vertical oscillator.
The invention adopts the following technical scheme:
a spread spectrum antenna based on a vertical oscillator comprises an antenna radiation unit and a reflecting plate, wherein the antenna radiation unit is vertically arranged on the reflecting plate and comprises two crossed printed dipoles, specifically comprises a first vertical oscillator arm, a second vertical oscillator arm, a third vertical oscillator arm, a fourth vertical oscillator arm, a first dielectric substrate, a second dielectric substrate and a feed structure, the feed structure comprises a first feeder line and a second feeder line, the first vertical oscillator arm, the third vertical oscillator arm and the first feeder line are printed on the first dielectric substrate, the second vertical oscillator arm, the fourth vertical oscillator arm and the first feeder line are printed on the second dielectric substrate, the first vertical oscillator arm and the third vertical oscillator arm form a + 45-degree polarization oscillator, the first feeder line feeds power, the second vertical oscillator arm and the fourth vertical oscillator arm form a-45-degree polarization oscillator, feeding by a second feeder; the antenna comprises a first dielectric substrate, a second dielectric substrate, a first vertical vibrator arm, a second vertical vibrator arm, a third vertical vibrator arm and a fourth vertical vibrator arm, wherein the first dielectric substrate and the second dielectric substrate are crossed, the first vertical vibrator arm, the second vertical vibrator arm, the third vertical vibrator arm and the fourth vertical vibrator arm are the same in structural size and comprise horizontal arms and vertical arms, the skirt edge is arranged on the upper surface of a reflecting plate, and an antenna radiation unit is located in the skirt edge.
Preferably, the length of the two horizontal arms printed on the same dielectric substrate is 74mm, and the ends of the two horizontal arms are inclined downwards.
Preferably, the skirt is made of four square metals and four elongated metals.
Preferably, four radiating patches are further included, one above the horizontal arm of each upright vibrator arm.
Preferably, the four radiating patches cross in a cross shape, and the crossing points of the four radiating patches and the crossing points of the first dielectric substrate and the second dielectric substrate are on a vertical straight line.
Preferably, the ends of two horizontal arms printed on the same dielectric substrate are inclined upwards, and the length of the two horizontal arms is 89 mm.
Preferably, the antenna further comprises eight radiating patches, wherein two radiating patches are arranged above each vertical oscillator arm, and the two radiating patches are arranged on the corresponding dielectric substrate in parallel.
Preferably, the ends of two horizontal arms printed on the same dielectric substrate are inclined upwards, and the length of the two horizontal arms is 188 mm.
The invention has the beneficial effects that:
(1) the first feeder line and the second feeder line are perpendicular to each other in a concave-convex mode, so that interference caused by crossing is avoided;
(2) the bandwidth of the spread spectrum antenna completely covers 1710-2710MHz, and is suitable for a 2G/3G/LTE (4G) system;
(3) four radiation patches are added on the spread spectrum antenna, so that the bandwidth of the antenna safely covers 1390-.
(4) Eight radiating patches are added on the spread spectrum antenna, so that the bandwidth of the antenna completely covers 690-1520MHz, and the antenna is suitable for not only the LTE700/GSM850/GSM900 system but also the IMT system.
(5) The radiator of the invention has novel structure, wide bandwidth, stable directional diagram and high gain.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the present invention rotated 180 degrees from FIG. 1;
FIG. 3 is a front view of FIG. 1 of the present invention;
FIG. 4 is a top plan view of FIG. 1 of the present invention;
fig. 5 is the impedance bandwidth of fig. 1 of the present invention.
FIG. 6 is a schematic structural view of embodiment 2 of the present invention;
FIG. 7 is a schematic view of the present invention rotated 180 degrees from FIG. 6;
FIG. 8 is a front view of embodiment 2 of the present invention;
FIG. 9 is a top view of embodiment 2 of the present invention;
fig. 10 is the impedance bandwidth of embodiment 2 of the present invention.
FIG. 11 is a schematic structural view of embodiment 3 of the present invention;
FIG. 12 is a schematic view of the present invention rotated 180 degrees from FIG. 11;
FIG. 13 is a front view of embodiment 3 of the present invention;
FIG. 14 is a top view of embodiment 3 of the present invention;
fig. 15 is the impedance bandwidth of embodiment 3 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
Example 1
As shown in fig. 1-5, the vertical oscillator-based spread spectrum antenna includes an antenna radiation unit and a reflection plate, the antenna radiation unit is vertically disposed on the reflection plate, the antenna radiation unit is composed of two printed dipoles crossed with each other, and specifically includes a first vertical array sub-arm, a second vertical array sub-arm, a third vertical array sub-arm, a fourth vertical array sub-arm, a first dielectric substrate, a second dielectric substrate, and a feeding structure, the feeding structure includes a first feeder line and a second feeder line, the first vertical oscillator arm 5C, the third vertical oscillator arm 5D, and the first feeder line 7A are printed on the first dielectric substrate 8A, the second vertical oscillator arm 5A, the fourth vertical oscillator arm 5B, and the second feeder line 7B are printed on the second dielectric substrate 8B, the first vertical oscillator arm and the third vertical oscillator arm constitute a + 45-degree polarization oscillator, feeding by a first feeder line, wherein the second and fourth vertical oscillator arms form a-45-degree polarized oscillator, and feeding by a second feeder line; first dielectric substrate and second dielectric substrate cross are alternately crossed, first upright oscillator arm, second upright oscillator arm, third upright oscillator arm and fourth upright oscillator arm's structural dimension are the same, all include horizontal arm and vertical arm, vertical arm sets up along the crossing line, and the one end and the vertical arm of horizontal arm are connected, and the directional direction of keeping away from the crossing line of its other end, the upper surface of reflecting plate 3 sets up shirt rim 4, and antenna radiation unit is located the shirt rim, can realize 30 dB's isolation basically, and the periphery is wrapped up by metal shirt rim and is wrapped up
The first feeder line 7A and the second feeder line 7B are perpendicular to each other, and intersection is avoided in a concave-convex mode.
The skirt edge is composed of four square metals and four strip metals, the strip metals are used for connecting the two adjacent square metals, the diameter of the skirt edge is 95mm, and the four surfaces of the corner are higher than the other four surfaces, so that the gain is kept stable.
The reflecting plate is of a plane structure.
The first dielectric substrate and the second dielectric substrate are both made of high-frequency plates R04350B, the thickness of the first dielectric substrate and the second dielectric substrate is 0.76mm, and the relative dielectric constant of the first dielectric substrate and the second dielectric substrate is 3.45.
The vertical arm is vertically arranged along a cross-shaped cross line of the two dielectric substrates, the tail end of the horizontal arm arranged on one dielectric substrate is inclined downwards, the total length of the two horizontal arms is 74mm, and due to the fact that the gain of the antenna in a high-frequency band is greatly reduced, the angle of the downward inclination is 3.5 degrees in the embodiment, and the vertical arm is used for increasing the gain of the high-frequency band.
The antenna of this embodiment 1 can realize dual polarization bandwidth 1710-.
As shown in fig. 5, which is the impedance bandwidth of the first antenna of this embodiment, it can be concluded from fig. 5 that the dual-polarized antenna of the present invention has an impedance bandwidth of 1710-2710MHz, the return loss reaches 15dB, the isolation degree reaches substantially above 30dB over the bandwidth, and the gain is above 8 dBi.
Example 2
As shown in fig. 6 to 10, the present embodiment 2 is different from embodiment 1 in the following features:
this embodiment 2 still includes four radiation patches 6A-6D, and four radiation patches set up respectively at first medium base plate and second medium base plate, set up a piece radiation patch in the level of the horizontal arm top of every vertical oscillator arm, the radiation patch is rectangular strip. The four radiation patches are crossed, and the crossed points of the four radiation patches and the crossed points of the first dielectric substrate and the second dielectric substrate are on a vertical straight line.
The tail ends of the two horizontal arms printed on the same dielectric substrate are inclined upwards, the length of the two horizontal arms is 89mm, and the angle of the upward inclination is 6.51 degrees in the embodiment due to the fact that the gain of the antenna in a high-frequency band is increased greatly, so that the gain of the antenna in the high-frequency band is reduced.
The two radiation patches printed on the same medium substrate have the tail end tilt angle of 6.97 degrees due to the fact that the gain of the antenna in a high frequency band is greatly increased, and the two radiation patches are used for reducing the gain of the antenna in the high frequency band.
The antenna radiation patches of the embodiment 2 have the same size and structure, and are all printed on the dielectric substrate and extend slightly upward.
The diameter of the skirt was 108 mm.
The antenna of the embodiment 2 can realize dual-polarization bandwidth 1390-.
As shown in fig. 10, which is the impedance bandwidth of the second antenna in this embodiment, it can be concluded from fig. 10 that the dual-polarized antenna of the present invention has an impedance bandwidth of 1390-.
Example 3
As shown in fig. 11 to 15, the present embodiment is different from embodiment 1 in the following features: still include eight radiation patches 6E-6L for spread spectrum, every medium base plate upwards extends and prints four radiation patches, and every vertical oscillator arm top prints two radiation patches, and the radiation patch level sets up, the vertical parallel arrangement of two radiation patches, the radiation patch of top is pressed close to the last border of medium base plate, and the four radiation patches that are located the upper end are the same in structure, and the size is the same to the cross.
The four radiation patches at the lower end have the same structure and the same size and are crossed.
The tail ends of two vertical vibrator arms printed on the same dielectric substrate are inclined upwards by 4.37 degrees, and the length of the two vertical vibrator arms is 188 mm.
The antenna of the embodiment can realize dual-polarization bandwidth 690 and 1520MHz, and the return loss is more than 15 dB.
As shown in fig. 15, which is the impedance bandwidth of the antenna three in this embodiment, it can be concluded from fig. 15 that the dual-polarized antenna of the present invention has an impedance bandwidth of 690-1520MHz, has a return loss of 15dB, can completely cover IMT system 1427-1515MHz and LTE700/GSM850/GSM900 system, and has an isolation of substantially more than 30dB over the bandwidth and a gain of more than 8 dBi.
The base station antenna based on the vertical oscillator spread spectrum has the characteristics of novel structure, vertical structure, simplicity in manufacturing, large bandwidth, high isolation, stable radiation pattern, high gain and the like.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (8)
1. A spread spectrum antenna based on a vertical oscillator comprises an antenna radiation unit and a reflecting plate, wherein the antenna radiation unit is vertically arranged on the reflecting plate and comprises two crossed printed dipoles, specifically comprises a first vertical oscillator arm, a second vertical oscillator arm, a third vertical oscillator arm, a fourth vertical oscillator arm, a first dielectric substrate, a second dielectric substrate and a feed structure, the feed structure comprises a first feeder line and a second feeder line, the first vertical oscillator arm, the third vertical oscillator arm and the first feeder line are printed on the first dielectric substrate, the second vertical oscillator arm, the fourth vertical oscillator arm and the first feeder line are printed on the second dielectric substrate, the first vertical oscillator arm and the third vertical oscillator arm form a + 45-degree polarization oscillator, the first feeder line feeds power, the second vertical oscillator arm and the fourth vertical oscillator arm form a-45-degree polarization oscillator, feeding by a second feeder; the antenna comprises a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, a reflecting plate and an antenna radiation unit, wherein the first dielectric substrate and the second dielectric substrate are crossed, and the antenna is characterized in that the first vertical vibrator arm, the second vertical vibrator arm, the third vertical vibrator arm and the fourth vertical vibrator arm are the same in structural size and comprise horizontal arms and vertical arms, the upper surface of the reflecting plate is provided with a skirt edge, and the antenna radiation unit is located in the skirt edge.
2. The spread-spectrum antenna of claim 1, wherein the two horizontal arms printed on the same dielectric substrate have a length of 74mm, and the distal ends of the two horizontal arms are inclined downward.
3. The spread-spectrum antenna of claim 1, wherein the skirt is formed from four square metals and four elongated metals.
4. The spread-spectrum antenna of claim 1, further comprising four radiating patches, one radiating patch disposed above the horizontal arm of each of the upright dipole arms.
5. The spread-spectrum antenna of claim 4, wherein the four radiating patches cross each other in a cross shape with the crossing points being aligned with the crossing points of the first dielectric substrate and the second dielectric substrate.
6. The spread-spectrum antenna of claim 4, wherein the ends of two horizontal arms printed on the same dielectric substrate are inclined upwards, and the length of the two horizontal arms is 89 mm.
7. The spread-spectrum antenna of claim 1, further comprising eight radiating patches, two radiating patches being disposed above each of the upright dipole arms, the two radiating patches being disposed in parallel on the corresponding dielectric substrate.
8. The spread-spectrum antenna of claim 7, wherein the ends of two horizontal arms printed on the same dielectric substrate are inclined upward, and the length of the two horizontal arms is 188 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002752.3A CN112054302A (en) | 2020-09-22 | 2020-09-22 | Spread spectrum antenna based on vertical oscillator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002752.3A CN112054302A (en) | 2020-09-22 | 2020-09-22 | Spread spectrum antenna based on vertical oscillator |
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| CN112054302A true CN112054302A (en) | 2020-12-08 |
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| CN202011002752.3A Pending CN112054302A (en) | 2020-09-22 | 2020-09-22 | Spread spectrum antenna based on vertical oscillator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224525A (en) * | 2021-05-31 | 2021-08-06 | 浙江嘉科电子有限公司 | High-gain dual-frequency omnidirectional antenna for 5G communication |
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|---|---|---|---|---|
| AU1132383A (en) * | 1982-02-10 | 1983-08-18 | Complementi El. Elettronici S.p.A. | Circular polarized crossed dipole |
| US6342867B1 (en) * | 2000-03-31 | 2002-01-29 | Navcom Technology, Inc. | Nested turnstile antenna |
| CN105356053A (en) * | 2015-11-27 | 2016-02-24 | 华南理工大学 | Differential broadband dual-polarization base station antenna for improving cross polarization ratio |
| CN108777357A (en) * | 2018-05-31 | 2018-11-09 | 北京邮电大学 | A kind of cascaded structure broadband dual-frequency dipole antenna for base station |
| CN109167163A (en) * | 2018-09-03 | 2019-01-08 | 广东通宇通讯股份有限公司 | Ultra wideband dual polarization element antenna |
| CN109672016A (en) * | 2017-10-13 | 2019-04-23 | 罗森伯格技术（昆山）有限公司 | A kind of antenna radiation unit |
| CN212571364U (en) * | 2020-09-22 | 2021-02-19 | 华南理工大学 | Spread spectrum antenna based on vertical oscillator |
-
2020
- 2020-09-22 CN CN202011002752.3A patent/CN112054302A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1132383A (en) * | 1982-02-10 | 1983-08-18 | Complementi El. Elettronici S.p.A. | Circular polarized crossed dipole |
| US6342867B1 (en) * | 2000-03-31 | 2002-01-29 | Navcom Technology, Inc. | Nested turnstile antenna |
| CN105356053A (en) * | 2015-11-27 | 2016-02-24 | 华南理工大学 | Differential broadband dual-polarization base station antenna for improving cross polarization ratio |
| CN109672016A (en) * | 2017-10-13 | 2019-04-23 | 罗森伯格技术（昆山）有限公司 | A kind of antenna radiation unit |
| CN108777357A (en) * | 2018-05-31 | 2018-11-09 | 北京邮电大学 | A kind of cascaded structure broadband dual-frequency dipole antenna for base station |
| CN109167163A (en) * | 2018-09-03 | 2019-01-08 | 广东通宇通讯股份有限公司 | Ultra wideband dual polarization element antenna |
| CN212571364U (en) * | 2020-09-22 | 2021-02-19 | 华南理工大学 | Spread spectrum antenna based on vertical oscillator |
Non-Patent Citations (2)
| Title |
|---|
| 崔悦慧等: "新型宽带基站天线", 《 2013年全国天线年会论文集》, 16 November 2013 (2013-11-16), pages 353 - 355 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224525A (en) * | 2021-05-31 | 2021-08-06 | 浙江嘉科电子有限公司 | High-gain dual-frequency omnidirectional antenna for 5G communication |
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