CN106549223B - A kind of efficient low section cavity-backed radiator antenna of broad band low frequency - Google Patents
A kind of efficient low section cavity-backed radiator antenna of broad band low frequency Download PDFInfo
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- CN106549223B CN106549223B CN201610850417.6A CN201610850417A CN106549223B CN 106549223 B CN106549223 B CN 106549223B CN 201610850417 A CN201610850417 A CN 201610850417A CN 106549223 B CN106549223 B CN 106549223B
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- cavity
- dipole
- balun
- bowtie
- connecting pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
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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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
- H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
Abstract
The present invention relates to cavity-backed radiator antenna design fields.In view of the problems of the existing technology the present invention, provides a kind of efficient low section cavity-backed radiator antenna of broad band low frequency.Bowtie-shaped dipole, feed balun are built in reflection cavity in the present invention.The root of feed balun is connect with reflection chamber bottom face；The top for feeding balun is connect with bowtie-shaped dipole feed end face；Bowtie-shaped dipole other end is connect with H-shaped medium pull rod.The cavity connecting pin of feed balun refers to the connectivity port connecting with reflection chamber bottom face, and the cavity connecting pin end face for feeding balun is parallel with reflection chamber bottom surface；The dipole connecting pin of feed balun refers to that the connecting pin with bowtie-shaped dipole feed end infinite approach, the dipole connecting pin end face for feeding balun are parallel with reflection chamber bottom surface.H-shaped medium pull rod both ends are respectively corresponded to be connect with both sides opposite on reflection cavity open end.
Description
Technical field
The present invention relates to cavity-backed radiator antenna design field, especially a kind of efficient low section cavity-backed radiator antenna of broad band low frequency.
Background technique
A variety of broad-band antenna forms such as logarithm, loudspeaker, dipole, which can be used, in the antenna of 2.5 frequencys multiplication in bandwidth of operation comes in fact
It is existing.Influence of the logarithm antenna vulnerable to mounting platform, longitudinal size are big；Electromagnetic horn is similar with logarithm antenna, and low-frequency range antenna is vertical
It is big to size, it is not easy to install and use.Dipole antenna, which can add back chamber to reduce platform, to be influenced, but working efficiency is lower,
Reliability and manufacturability are poor.For requiring low frequency, broadband, low section, high efficiency, the application platform of high reliablity is existing
Some technologies cannot be met the requirements.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the problems of the existing technology, it is high to provide a kind of broad band low frequency
Imitate low section cavity-backed radiator antenna.Purpose is to provide work in low frequency, 2.5 frequency multiplication of bandwidth of operation, low section, high radiation efficiency, antenna
Performance is influenced the antenna implementation of small, high suitable for reliability requirement platform by platform.The antenna carries on the back chamber using bow-tie type
Antenna form, structure type are succinct；The size of optimization design reflection cavity, directional beam required for capable of being formed, radiation efficiency
Height, influence of the carrier platform to antenna are small.Smart structural design, H-shaped medium pull rod and wheel shape support Design realize that antenna is high
While reliability, influence of the carrier platform to antenna radiation performance is improved.
The technical solution adopted by the invention is as follows:
It is opening that a kind of efficient low section cavity-backed radiator antenna of broad band low frequency, which includes bowtie-shaped dipole, feed balun, top end face,
Reflection cavity and H-type medium pull rod；H-shaped medium pull rod both ends are respectively corresponded to be connected with both sides opposite on reflection cavity open end
It connects；Feed balun is built in reflective cavity, and the cavity connecting pin for feeding balun is connect with reflection chamber bottom face；Feed balun
Dipole connecting pin connect with one end face of bowtie-shaped dipole；Bowtie-shaped dipole other end is connect with H-shaped medium pull rod.
The cavity connecting pin of feed balun refers to the connectivity port connecting with reflection chamber bottom face, feeds the cavity connecting pin of balun
End face is parallel with reflection chamber bottom surface；The dipole connecting pin of feed balun refers to infinitely connecing with bowtie-shaped dipole feed end
Close connecting pin, the dipole connecting pin end face for feeding balun are parallel with reflection chamber bottom surface；Wherein bowtie-shaped dipole is fed
End refers to the region that two two nearest sides of oscillator piece distance of bowtie-shaped dipole are formed；Bowtie-shaped dipole central point
With reflection chamber center overlapping of axles；Reflection chamber central axis refers to reflection chamber bottom face central point to reflection chamber top end face
The line of central point.
Further, the bowtie-shaped dipole is along x-axis mirror symmetry, and along y-axis mirror symmetry；The bowtie-shaped dipole
The one of dipole long side a of son is 0.268 λ0, b is 0.373 λ0；Length of corner cut range along y-axis is that 0.0675b is arrived
0.1375b；λ0For center frequency point corresponding wavelength in working frequency range.
Further, the feed balun and reflection cavity bottom face angular range are 84 degree to 85 degree；Feed the idol of balun
Extremely sub- connecting pin is close to reflection chamber central axis；The cavity connecting pin of balun is fed far from reflection chamber central axis.
Further, the H-type medium pull rod；Meet P+2H=X；Wherein H is H-type medium pull rod one end and nearest horizontal axis
The distance at end；P is horizontal axis length；P is more than or equal to 2a+d；131 degree to 135 degree of α range.
Further, a kind of efficient low section cavity-backed radiator antenna of broad band low frequency further includes for increasing antenna and carrier platform
The bracket of difference in height.
Further, the reflection cavity is rectangular reflective cavity, and the length of the rectangular reflective cavity outer dimension is distinguished
Correspond to 0.83 λ0、0.83λ0、0.35λ0。
Further, the H-type medium pull rod material is glass reinforced plastic, nylon or polyimides.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Bow-tie type dipole size-modify: bow-tie type dipole antenna is main radiator, is in bow-tie type, sees 0,
A is 0.268 λ0, b is 0.373 λ0, the feed end and distal end corner cut of knot, to meet ultra wide band
The requirement of work.
A) feed balun includes the structures such as radio frequency (RF) coaxial connector, coaxial cable, feed probes, mainly plays balanced feeding
Effect.The inclination angle of feed Balun and reflection box mounting surface is 84.75 °, and adjustment height realizes impedance matching in ultra wide band.Feed
Balun schematic diagram is shown in Fig. 2.
B) rectangular reflective cavity outer dimension is 0.83 λ0×0.83λ0×0.35λ0(length × width × height) (wherein λ0For work
Center frequency point corresponding wavelength in frequency range).Play the role of shaping to wave beam, size has been largely fixed the increasing of antenna
Benefit, beam angle and front and back ratio, make the front and back of antenna than being optimal in entire working band.
C) high reliability of antenna is realized by the design of cleverly structure:
1. being connected bow-tie type dipole and reflection cavity using H-shaped medium pull rod, to improve structural strength, avoid hanging
Arm configuration.To reduce to electric effect, medium pull rod uses H-shaped structure, and intermediate width is about b/4.
2. feed balun is structurally joining together support bow-tie type dipole and reflection box, with H-shaped medium pull rod, reflection cavity shape
High reliability is obtained at firm triangular support configurations.
3. bracket (wheel shape) design increases the difference in height of antenna and carrier platform, platform is improved to aerial radiation effect
Influence.It ensure that structural stability simultaneously.
D) the efficient low section cavity-backed radiator antenna of broad band low frequency of the present invention, bandwidth of operation reach 2.5 frequencys multiplication.In working frequency range, stay
For wave less than 3, gain is greater than 6 decibels.Efficient radiation effect is realized in broad band low frequency.Antenna is influenced small by mounting platform.
Group battle array uses, and adjacent antenna phase equalization is better than 13 ° of root mean square in ± 30 ° × ± 30 ° airspaces.Using high reliability structure
Design is adapted to adverse circumstances use.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is bow-tie type dipole structure schematic diagram.
Fig. 2 is feed Balun in reflection chamber schematic internal view.
The efficient low section cavity-backed radiator antenna structural schematic diagram of Fig. 3 broad band low frequency.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
It is opening that a kind of efficient low section cavity-backed radiator antenna of broad band low frequency, which includes bowtie-shaped dipole, feed balun, top end face,
Reflection cavity and H-type medium pull rod；H-shaped medium pull rod both ends are respectively corresponded to be connected with both sides opposite on reflection cavity open end
It connects；Feed balun is built in reflective cavity, and the cavity connecting pin for feeding balun is connect with reflection chamber bottom face；Feed balun
Dipole connecting pin connect with one end face of bowtie-shaped dipole；Bowtie-shaped dipole other end is connect with H-shaped medium pull rod.
The cavity connecting pin of feed balun refers to the connectivity port connecting with reflection chamber bottom face, feeds the cavity connecting pin of balun
End face is parallel with reflection chamber bottom surface；The dipole connecting pin of feed balun refers to infinitely connecing with bowtie-shaped dipole feed end
Close connecting pin, the dipole connecting pin end face for feeding balun are parallel with reflection chamber bottom surface；Wherein bowtie-shaped dipole is fed
End refers to the region that two two nearest sides of oscillator piece distance of bowtie-shaped dipole are formed；Bowtie-shaped dipole central point
With reflection chamber center overlapping of axles；Reflection chamber central axis refers to reflection chamber bottom face central point to reflection chamber top end face
The line of central point, (wherein X-axis is vertical with Y in coordinate system, and parallel with the earth, and Z axis is vertical with the earth).
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (7)
1. a kind of efficient low section cavity-backed radiator antenna of broad band low frequency, special to be to include bowtie-shaped dipole, feed balun, top
Face is the reflection cavity and H-type medium pull rod of opening；H-shaped medium pull rod both ends respectively correspond with it is opposite on reflection cavity open end
Both sides connection；Feed balun is built in reflective cavity, and the cavity connecting pin for feeding balun is connect with reflection chamber bottom face；Feedback
The dipole connecting pin of electric balun is connect with one end face of bowtie-shaped dipole；Bowtie-shaped dipole other end and H-shaped medium are drawn
Bar connection；
The cavity connecting pin of feed balun refers to the connectivity port connecting with reflection chamber bottom face, and the cavity for feeding balun connects
It is parallel with reflection chamber bottom surface to connect end end face；Feed balun dipole connecting pin refer to bowtie-shaped dipole feed end without
Close connecting pin is limited, the dipole connecting pin end face for feeding balun is parallel with reflection chamber bottom surface；Wherein bowtie-shaped dipole
Feed end refers to the region that two two nearest sides of oscillator piece distance of bowtie-shaped dipole are formed；In bowtie-shaped dipole
Heart point and reflection chamber center overlapping of axles；Reflection chamber central axis refers to reflection chamber bottom face central point to reflection chamber top
The line of end face center point.
2. the efficient low section cavity-backed radiator antenna of a kind of broad band low frequency according to claim 1, spy is being the bowtie-shaped
Dipole is along x-axis mirror symmetry, and along y-axis mirror symmetry；The one of dipole long side a of bowtie-shaped dipole is
0.268λ0, b is 0.373 λ0；Length of corner cut range along y-axis is 0.0675b to 0.1375b；λ0For center frequency in working frequency range
Point corresponding wavelength.
3. the efficient low section cavity-backed radiator antenna of a kind of broad band low frequency according to claim 1, special to be the feed bar
Logical sequence and reflection cavity bottom face angular range are 84 degree to 85 degree；The dipole connecting pin of balun is fed close to reflection chamber center
Axis；The cavity connecting pin of balun is fed far from reflection chamber central axis.
4. the efficient low section cavity-backed radiator antenna of a kind of broad band low frequency according to claim 1, spy is being the H-type medium
Pull rod；Meet P+2H=X；Wherein H is H-type medium pull rod one end at a distance from nearest horizontal axis end；P is horizontal axis length；P be greater than etc.
In 2a+d；131 degree to 135 degree of α range.
5. the efficient low section cavity-backed radiator antenna of a kind of broad band low frequency according to claim 1, spy is being to further include being used for
Increase the bracket of the difference in height of antenna and carrier platform.
6. the efficient low section cavity-backed radiator antenna of a kind of broad band low frequency according to claim 1, spy is being the reflection cavity
For rectangular reflective cavity, the length of the rectangular reflective cavity outer dimension is respectively corresponded as 0.83 λ0、0.83λ0、0.35λ0。
7. the efficient low section cavity-backed radiator antenna of a kind of broad band low frequency according to one of claims 1 to 6, it is special be it is described
H-type medium pull rod material is glass reinforced plastic, nylon or polyimides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610850417.6A CN106549223B (en) | 2016-09-26 | 2016-09-26 | A kind of efficient low section cavity-backed radiator antenna of broad band low frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610850417.6A CN106549223B (en) | 2016-09-26 | 2016-09-26 | A kind of efficient low section cavity-backed radiator antenna of broad band low frequency |
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| Publication Number | Publication Date |
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| CN106549223A CN106549223A (en) | 2017-03-29 |
| CN106549223B true CN106549223B (en) | 2019-09-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571508B (en) * | 2019-08-01 | 2021-07-27 | 中国电子科技集团公司第二十九研究所 | Broadband integrated antenna |
| CN111146557B (en) * | 2019-12-14 | 2022-03-15 | 中国电子科技集团公司第三十九研究所 | Light flexible inflatable deployable dipole antenna structure |
| CN112467351B (en) * | 2020-11-19 | 2022-04-19 | 中国电子科技集团公司第二十九研究所 | Multi-resonance excitation back cavity antenna |
| CN113690586B (en) * | 2021-08-16 | 2023-03-21 | 电子科技大学 | Directional antenna for underwater ground penetrating radar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6320509B1 (en) * | 1998-03-16 | 2001-11-20 | Intermec Ip Corp. | Radio frequency identification transponder having a high gain antenna configuration |
| CN102683895A (en) * | 2012-05-25 | 2012-09-19 | 四川省视频电子有限责任公司 | UHF (ultrahigh frequency) frequency range reflection cavity dipole antenna |
| CN203485404U (en) * | 2013-09-30 | 2014-03-19 | 东莞市稻田精密模具塑胶有限公司 | Separation type angle ejection mechanism |
| CN205231251U (en) * | 2015-12-10 | 2016-05-11 | 张竞超 | Communication antenna |
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2016
- 2016-09-26 CN CN201610850417.6A patent/CN106549223B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6320509B1 (en) * | 1998-03-16 | 2001-11-20 | Intermec Ip Corp. | Radio frequency identification transponder having a high gain antenna configuration |
| CN102683895A (en) * | 2012-05-25 | 2012-09-19 | 四川省视频电子有限责任公司 | UHF (ultrahigh frequency) frequency range reflection cavity dipole antenna |
| CN203485404U (en) * | 2013-09-30 | 2014-03-19 | 东莞市稻田精密模具塑胶有限公司 | Separation type angle ejection mechanism |
| CN205231251U (en) * | 2015-12-10 | 2016-05-11 | 张竞超 | Communication antenna |
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| CN106549223A (en) | 2017-03-29 |
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