CN106058487B - Antenna and its load choke groove - Google Patents
Antenna and its load choke groove Download PDFInfo
- Publication number
- CN106058487B CN106058487B CN201610516689.2A CN201610516689A CN106058487B CN 106058487 B CN106058487 B CN 106058487B CN 201610516689 A CN201610516689 A CN 201610516689A CN 106058487 B CN106058487 B CN 106058487B
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- China
- Prior art keywords
- antenna
- choke groove
- groove
- lobe
- load
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
Abstract
The present invention provides a kind of antenna and its load choke groove, which includes at least two section rectangle grooves, the more piece rectangle groove height assembled arrangement, and is integrally rotated inward.The structure applies minor lobe and the back lobe that can not only inhibit azimuth plane directional diagram on antenna, reduces the interference to periphery electromagnetic environment, more can change the main lobe of azimuth plane, and azimuth plane lobe width is greatly reduced, and realizes that wave beam forming meets certain area covering and requires.Inventive antenna includes antenna loading choke groove as described above, which is located at antenna aperture two sides.The addition of antenna loading choke groove expands the Net long wave radiation bore of antenna, changes the field distribution of radiating aperture, reduces the lobe width in antenna bearingt face, affects the directional diagram in antenna bearingt face.
Description
[technical field]
The present invention relates to wireless communications, refer in particular to the load choke groove of one of wireless communication microwave antenna.
[background technique]
On antenna using choke groove be realize a kind of regulatable important way of antenna radiation pattern, especially now communication
System requirements microwave antenna will realize certain region overlay, and meet certain envelope requirement, this is just needed by using gripping
Chute realizes region overlay to regulate and control its directional diagram.Since the aperture field of fan anteena is in certain distribution, gripped not using
In the case where chute or the traditional lateral straight-flanked ring choke groove of use, the Net long wave radiation bore of antenna does not change, it
The minimum value of lobe width can be calculated according to the calculation formula of lobe width and (take the smallest be uniformly distributed herein) about etc.
In 78.77 °.Assuming that target lobe width requires to be 30 °, since traditional lateral straight-flanked ring choke groove cannot in practice
The lobe width that it is reduced by increasing the Net long wave radiation bore of antenna is not able to satisfy the emission requirements of certain area covering.
So provide it is a kind of new antenna lobe width can be greatly lowered, and can be realized certain area covering
Choke groove it is actually necessary.
[summary of the invention]
The object of the present invention is to provide a kind of structure is simple, the antenna loading choke groove of superior performance.
Another object of the present invention is to provide the antenna that a kind of lobe width of superior performance reduces.
The present invention is implemented as follows:
There is provided a kind of antenna loading choke groove comprising more piece rectangle groove, at least two section rectangle groove height groups
Arrangement is closed, and is integrally rotated inward.The structure applies minor lobe and the back lobe that can not only inhibit azimuth plane directional diagram on antenna,
The interference to periphery electromagnetic environment is reduced, more can change the main lobe of azimuth plane, azimuth plane lobe width is greatly reduced, realizes wave
Beam figuration meets certain area covering and requires.
Preferably, which integrally rotates inward angle b, it is preferred that the range of b is 0~90 degree.
Preferably, the rectangle groove generally has 2~6 sections, best 3 section, joint number and polarization direction and region overlay requirement
It is related.
Preferably, the groove depth slot_h value of the antenna loading choke groove is 1/4 wavelength.
Preferably, the groove width slot_w value of the antenna loading choke groove is 1/8 wavelength.
Preferably, the separation slot_d value of the antenna loading choke groove is 1/4 wavelength.
Preferably, the shape of the antenna loading choke groove is V-shaped.The processing is simple, reduces volume and materials'use.
The present invention also provides a kind of antennas comprising antenna loading choke groove as described above, the antenna loading choke groove
Positioned at antenna aperture two sides.The addition of antenna loading choke groove expands the Net long wave radiation bore of antenna, changes radiating aperture
Field distribution reduces the lobe width in antenna bearingt face, affects the directional diagram in antenna bearingt face.
Preferably, which is located at antenna aperture two sides and is symmetrical arranged.
Preferably, the antenna loading choke groove and aerial radiation bore form angle.
Preferably, which is close to the edge of antenna aperture.Keep choke groove both ends distance fixed, meets wave
Beam figuration effect.
The prior art is compared, the invention has the following advantages that
It can not only inhibit minor lobe and the back lobe of azimuth plane directional diagram, reduce the interference to periphery electromagnetic environment, it more can be with
Azimuth plane lobe width is greatly reduced in the main lobe for changing azimuth plane, realizes that wave beam forming meets certain area covering and requires.This
Outside, which can reduce production cost by way of open form material mould, ensure that consistency, the reliability of product, can
Batch production, is suitable for popularization and application.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram that inventive antenna loads choke groove；
Fig. 2 is the side view that inventive antenna loads choke groove；
Fig. 3 is the rotation angle contrast schematic diagram that inventive antenna loads choke groove；
Fig. 4 is that inventive antenna loads the groove depth of choke groove, width, spacing schematic diagram；
Fig. 5 is that inventive antenna load choke groove is mounted on the schematic diagram on antenna；
Fig. 6 is being obtained with electromagnetism three-dimensional artificial software for the prior art fan anteena that frequency range is 24~30GHz
Azimuth plane directional diagram；
Fig. 7 is after the fan anteena that frequency range is 24~30GHz loads choke groove plus inventive antenna, to be imitated with three-dimensional
The azimuth plane directional diagram that true software obtains；
Fig. 8 is practical far field after the fan anteena that frequency range is 24~30GHz loads choke groove plus inventive antenna
Test the azimuth plane directional diagram obtained.
[specific embodiment]
Fig. 1~3 are please referred to, it includes more piece rectangle groove 110, the more piece rectangle that inventive antenna, which loads choke groove 100,
110 height assembled arrangement of groove, and integrally rotate inward.It is vertically Y-axis referring to FIG. 3, being in transverse direction X-axis in figure, edge
110 length direction of rectangle groove is Z axis, and more piece rectangle groove 110 is whole to rotate by a certain angle b along Z axis, the range of b is 0~
90 degree.The shape of the antenna loading choke groove is V-shaped.
The structure applies minor lobe and the back lobe that can not only inhibit azimuth plane directional diagram on antenna, reduces to periphery electromagnetism
The interference of environment more can change the main lobe of azimuth plane, and azimuth plane lobe width is greatly reduced, and it is certain to realize that wave beam forming meets
Region overlay requirement.
Referring to Fig. 4, the groove depth slot_h of the antenna loading choke groove, groove width slot_w, separation slot_d are and wave
Length is related, and in the present embodiment, the groove depth slot_h value of the antenna loading choke groove is 1/4 wavelength, the antenna loading chokes
The groove width slot_w value of slot is 1/8 wavelength, and the separation slot_d value of the antenna loading choke groove is 1/4 wavelength.
The width slot_w of three rectangle grooves 110, separation slot_d are the same, groove depths in the present embodiment
Slot_h is since rectangle groove height has relative position variation, so depth is all different, the whole rotation of rectangle groove 110
Angle b is related with target call, for example fan-shaped envelope requires 30 °/60 °/90 °.So its rotation angle is also different
, from lobe width calculation formula can be seen that 30 ° it is slightly larger relative to 60 ° of rotations, 90 ° of general rotation angles are 0 °, rotation
The size of gyration is related with the actually active bore (equivalent a) after addition choke groove.Realize that certain lobe width, a are bigger
Its rotation angle is smaller.In view of cost and region overlay requirement, general rectangle groove number is 3~5.(a and choke groove
Rectangle groove number, choke groove groove depth, the height group of slot be right and the bore of antenna itself is related, can also take into account antenna
Wave beam forming).It is not to say that the choke groove for meeting 30 ° of the fan anteena envelope requirement of ETSI SS3, only slightly rotates
Once its angle just can meet 60 ° of ETSI SS3 of envelope on original antenna foundation again, and need to do a little sizes
Adjustment (primarily to realizing wave beam forming).Specific value is also required to use 3 D electromagnetic simulation software to make and optimize and revise.
The separation slot_d of final choke groove is 4.0mm, and groove width slot is 3.2mm, groove depth slot_h after adjustment direction figure it
It is highly different, specific value explanation is not done.
Referring to Fig. 5, loading choke groove for inventive antenna is mounted on the schematic diagram of antenna aperture two sides, and symmetrically set
It sets, is close to the edge of antenna aperture, and form certain angle with radiating aperture, principle is similar to corrugated horn.Antenna loading
The addition of choke groove expands the Net long wave radiation bore of antenna, changes the field distribution of radiating aperture, reduces antenna bearingt face
Lobe width affects the directional diagram in antenna bearingt face.The size of effective aperture can consider close to a value (a value, root in Fig. 2
It is determined according to empirical equation and target call angle, such as 30 degree, then 30=180/ π * 0.88* λ/a can calculate one substantially
A value, λ is generally the wavelength of center frequency point, last or global optimization).The two section rectangle grooves close to bore are mainly real
Existing standing wave matching and wave beam forming, the rectangular channel far from bore are mainly the lobe width and directional diagram for controlling main lobe.
Please refer to Fig. 6~8.Realize that lesser lobe width can be by (180/ π * 0.88* λ/a of theoretical calculation formula)
Increase the Net long wave radiation bore of antenna to reduce lobe width.The use of inventive antenna load choke groove considerably increases antenna
Net long wave radiation bore, to reduce the lobe width in antenna bearingt face, (lobe width ratio Fig. 6 lobe width of Fig. 7 reduces
60 ° or so), it realizes certain wave beam forming and meets ETSI (European Telecommunications
Standards Institute: European Telecommunication Standardization Association) SS3 envelope requirement, as shown in Figure 7 and Figure 8, emphasis embody
On lobe width, front and back ratio, main lobe and minor lobe directional diagram.
Compared with traditional lateral straight-flanked ring choke groove, the advantage of inventive antenna load choke groove is that it can be dropped significantly
The lobe width of low azimuth patterns, influence main lobe, minor lobe, back lobe directional diagram come to wave beam forming.This function makes
Inventive antenna loads choke groove has important dissemination in the microwave antenna engineering for needing to realize certain area covering.
The foregoing is merely presently preferred embodiments of the present invention, and scope of protection of the present invention is not limited thereto, any to be based on
Equivalent transformation in technical solution of the present invention is all fallen within the protection scope of the present invention.
Claims (6)
1. a kind of antenna loading choke groove, which is characterized in that the load choke groove is by being parallel to each other, being open vertically upward and bottom
The more piece rectangle groove that portion's height gradually increases from inside to outside is formed after integrally rotating inward angle b, which is located at
Fan anteena bore two sides are symmetrical arranged, and are formed certain angle with aerial radiation bore and are close to the edge of antenna aperture, rotation
Angle b is related to the requirement of fan anteena envelope.
2. antenna loading choke groove as described in claim 1, which is characterized in that the groove depth slot_h of the load choke groove takes
Value is 1/4 wavelength.
3. antenna loading choke groove as described in claim 1, which is characterized in that the groove width slot_w of the load choke groove takes
Value is 1/8 wavelength.
4. antenna loading choke groove as described in claim 1, which is characterized in that the separation slot_d of the load choke groove
Value is 1/4 wavelength.
5. antenna loading choke groove as described in claim 1, which is characterized in that the shape of the load choke groove is V-shaped.
6. a kind of antenna, which is characterized in that it includes antenna loading choke groove as claimed in any one of claims 1 to 5, the day
Line load choke groove is located at antenna aperture two sides, forms certain angle with aerial radiation bore and is close to the edge of antenna aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516689.2A CN106058487B (en) | 2016-07-01 | 2016-07-01 | Antenna and its load choke groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516689.2A CN106058487B (en) | 2016-07-01 | 2016-07-01 | Antenna and its load choke groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106058487A CN106058487A (en) | 2016-10-26 |
| CN106058487B true CN106058487B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610516689.2A Active CN106058487B (en) | 2016-07-01 | 2016-07-01 | Antenna and its load choke groove |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994335B (en) * | 2017-12-07 | 2023-11-24 | 京信通信技术(广州)有限公司 | Antenna device |
| CN117559135B (en) * | 2024-01-11 | 2024-04-05 | 福州福大信捷天线技术有限公司 | Big dipper high accuracy anti-interference array antenna |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8004474B2 (en) * | 2007-09-17 | 2011-08-23 | Physical Sciences, Inc. | Non-cutoff frequency selective surface ground plane antenna assembly |
| CN203260709U (en) * | 2013-04-26 | 2013-10-30 | 湖南航天环宇通信科技有限责任公司 | Gnss antenna choke groove |
| CN105071045B (en) * | 2015-08-21 | 2019-04-19 | 广东盛路通信科技股份有限公司 | A kind of High-gain low-sidelobe E-plane sectoral horn (antenna) |
| CN206076507U (en) * | 2016-07-01 | 2017-04-05 | 广东通宇通讯股份有限公司 | Antenna and its loading choke groove |
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| CN106058487A (en) | 2016-10-26 |
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