CN206976567U - A kind of two-terminal feeding formula array antenna - Google Patents
A kind of two-terminal feeding formula array antenna Download PDFInfo
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- CN206976567U CN206976567U CN201720920459.2U CN201720920459U CN206976567U CN 206976567 U CN206976567 U CN 206976567U CN 201720920459 U CN201720920459 U CN 201720920459U CN 206976567 U CN206976567 U CN 206976567U
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Abstract
The utility model discloses a kind of two-terminal feeding formula array antenna, belong to antenna technical field.It includes the radial chamber to communicate with each other and coaxial cavity, there are multiple radiation ports on the top surface of radial chamber, coaxial cavity has two mutually perpendicular waveguide input ports, coaxial cavity is provided with the vertical cylindrical needle with coaxial nature on the bottom surface at intracavitary center, the bottom of probe is provided with two-stage matching step, two-stage matching step is made up of the first cylinder and the second cylinder coaxial with probe, and on the bottom surface of coaxial cavity, the second cylinder is located on the top surface of the first cylinder the first cylinder.The utility model had both been avoided that the difficulty of processing of gap opening coupling, and and can avoids the loss problem that air is fed with line, is a significant improvement relative to prior art.
Description
Technical field
Antenna technical field is the utility model is related to, particularly relates to a kind of two-terminal feeding formula array antenna.
Background technology
In traditional electronic information field, the implementation of the array antenna of broadband multipolarization is by diversified forms, specifically
Show as following characteristics：
1st, waveguide mouth direct feed is passed through.The technical difficulty of this kind of mode is small, is carried out by waveguide mouth directly to square wave guide
Feedback
Electricity, cracked using straight-through or side wall by the way of being coupled, realize that dual polarized signals transmit.This mode is to ripple
Lead opening and the required precision of gap opening is higher, in the higher occasion of frequency range, it realizes that difficulty is larger.
2nd, dual polarization feed is carried out by air band line.The core of this mode is conversion of the waveguide to coaxial feed,
The bottom of waveguide antenna chamber sets reflection cavity, and the sidewall opening of radiating guide carries out air band line cabling, realizes microstrip-fed arrive
The conversion of waveguide antenna.This method has larger loss in high band as a result of printed circuit board technology, and to process and assemble
The requirement of technique is stricter.
3rd, waveguide and air band knot are closed and fed.In this kind of system, according to the concrete condition of antenna, a polarization port
Using waveguide feed, another polarization port is that air band line is fed, this mode combination above two feeding classification feature,
Space can be fed with flexible Application, be a kind of mode of compromise.But this mode does not have in terms of solving high band transmission loss
There is significant advantage.
Utility model content
In view of this, the utility model proposes a kind of two-terminal feeding formula array antenna, it can be mutual by the two-way of input
Perpendicular waveguide signal is nondestructively converted into coaxial signal, and signal is efficiently radiate by multiple radiation ports.
Based on above-mentioned purpose, technical scheme provided by the utility model is：
A kind of two-terminal feeding formula array antenna, it includes the radial chamber to communicate with each other and coaxial cavity, and radial chamber is positioned at same
The surface of axocoel, the bottom center of radial chamber and the end face center of coaxial cavity are respectively provided with square connector, radial chamber
There are multiple radiation ports, coaxial cavity has two mutually perpendicular waveguide input ports, and coaxial cavity is at intracavitary center on top surface
The bottom surface at place is provided with the vertical cylindrical needle with coaxial nature, and the height of probe is 1/6~1/4 times of waveguide ripple
Long, the radius of probe is 1/15~1/10 times of waveguide wavelength, and probe points to the center of radial chamber, and the bottom of probe is provided with two-stage
Step is matched, two-stage matching step is made up of the first cylinder and the second cylinder coaxial with probe, and the first cylinder is located immediately at same
On the bottom surface of axocoel, the second cylinder is located on the top surface of the first cylinder, and the diameter of the second cylinder is less than the diameter of the first cylinder.
Optionally, port is radiated to be square, and the length of side of square-shaped radiation port is 0.6~0.8 times of waveguide wavelength.
Optionally, port is radiated as circle, and a diameter of 0.6~0.8 times of waveguide wavelength of circular radiation port.
Optionally, the arrangement of port rectangular array formula is radiated.
Optionally, connected between radial chamber and coaxial cavity by square waveguide transmission section, the inwall side of waveguide transmission section
A length of 0.5~0.7 times of waveguide wavelength, the height of waveguide transmission section are 0.35~0.55 times of waveguide wavelength.
Optionally, the cavity wall at the waveguide end for corresponding to two waveguide input ports of coaxial cavity is to have matching work(
The short-circuit wall of energy, the distance between the center of short-circuit wall and the axis of probe are 0.48~0.52 times of waveguide wavelength.
Optionally, a diameter of 0.5~0.7 times of waveguide wavelength of the first cylinder, the height of the first cylinder for 0.08~
0.12 times of waveguide wavelength；A diameter of 0.3~0.4 times of waveguide wavelength of the second cylinder, the height of the second cylinder for 0.05~
0.07 times of waveguide wavelength.
From narration above as can be seen that the beneficial effect of technical solutions of the utility model is：
1st, the utility model can effectively improve the radiation efficiency of antenna using coaxial translative mode.
2nd, the utility model is inputted using mutually perpendicular waveguide, can realize line pole by adjusting the phase of input signal
Change or circular polarisation.
3rd, the implementation of the utility model design can be diversified, and machining, welding, injection, casting etc. can be real
It is existing.
In a word, the utility model in coaxial cavity by setting coaxial probe, and is aided with the mode of step matching layer, realizes
Lossless conversion of the waveguide signal to coaxial signal, the difficulty of processing of gap opening coupling was both avoided, turn avoid air band
The loss problem of line feed, is a significant improvement relative to prior art.
Brief description of the drawings
In order to clearly describe this patent, one or more accompanying drawing is provided below, these accompanying drawings are intended to this patent
Background technology, technical principle and/or some specific embodiments make aid illustration.It should be noted that these accompanying drawings can
It can not also provide some to provide and have been described and belong to known in those of ordinary skill in the art often at this patent word segment
The detail of knowledge；Also, because one of ordinary skill in the art can combine the published word content of this patent completely
And/or accompanying drawing content, more accompanying drawings, therefore these accompanying drawings below are designed in the case where not paying any creative work
Can cover can not also cover all technical schemes that this patent word segment is described.In addition, these accompanying drawings is specific interior
Containing needs the word content with reference to this patent to be determined, when word content and some obvious knot in these accompanying drawings of this patent
, it is necessary to which to carry out comprehensive descision be this on earth with reference to the narration of the common knowledge and this patent other parts of this area when structure is not consistent
The word segment of patent, which exists to exist in clerical mistake, or accompanying drawing, draws mistake.Especially, the following drawings is the figure of exemplary in nature
Piece, it is not intended that imply the protection domain of this patent, one of ordinary skill in the art is by reference to the text disclosed in this patent
Word content and/or accompanying drawing content, more accompanying drawings can be designed in the case where not paying any creative work, these are new
Technical scheme representated by accompanying drawing is still within the protection domain of this patent.
Fig. 1 is a kind of structural representation of two-terminal feeding formula array antenna in the utility model embodiment；
Fig. 2 is a kind of structural representation of coaxial cavity in Fig. 1；
Fig. 3 is a kind of structural representation of radial chamber in Fig. 1.
Embodiment
For the ease of understanding of the those skilled in the art to the art of this patent scheme, meanwhile, in order that the technology of this patent
Purpose, technical scheme and beneficial effect are clearer, and the protection domain of claims is fully supported, below with tool
The form of body case makes further, more detailed description to the technical scheme of this patent.
As shown in Figures 1 to 3, a kind of two-terminal feeding formula array antenna, it includes the radial chamber 1 to communicate with each other and coaxial cavity
2, radial chamber 1 is located at the surface of coaxial cavity 2, and the bottom center of radial chamber 1 and the end face center of coaxial cavity 2 are respectively provided with square
Connector, there are multiple radiation ports 11, coaxial cavity 2 has two mutually perpendicular waveguides inputs on the top surface of radial chamber 1
Port 21, coaxial cavity 2 are provided with the vertical cylindrical needle 31 with coaxial nature, probe 31 on the bottom surface at intracavitary center
Height be 1/6~1/4 times of waveguide wavelength, the radius of probe 31 is 1/15~1/10 times of waveguide wavelength, and probe 31 points to
The center of radial chamber 1, the bottom of probe 31 are provided with two-stage matching step, and two-stage matches step by first circle coaxial with probe 31
The cylinder 33 of post 32 and second forms, and for the first cylinder 32 on the bottom surface of coaxial cavity 2, the second cylinder 33 is located at the first cylinder
On 32 top surface, the diameter of the second cylinder 33 is less than the diameter of the first cylinder 32.
Optionally, port is radiated to be square, and the length of side of square-shaped radiation port is 0.6~0.8 times of waveguide wavelength.
Optionally, port is radiated as circle, and a diameter of 0.6~0.8 times of waveguide wavelength of circular radiation port.
Optionally, the arrangement of port rectangular array formula is radiated.
Still see Fig. 1, be a kind of circular radiation port of 2 × 2 rectanglar arrangements shown in figure.
Optionally, see Fig. 3, connected between radial chamber 1 and coaxial cavity 2 by square waveguide transmission section 4, waveguide transmission section
The 4 inwall length of side is 0.5~0.7 times of waveguide wavelength, and the height of waveguide transmission section 4 is 0.35~0.55 times of waveguide wavelength.
Optionally, Fig. 2 is still seen, the cavity wall at the waveguide end for corresponding to two waveguide input ports 21 of coaxial cavity is
Short-circuit wall 5 with matching feature, the distance between the center of short-circuit wall 5 and the axis of probe 31 are 0.48~0.52 times of ripple
Guide wavelength.
Optionally, a diameter of 0.5~0.7 times of waveguide wavelength of the first cylinder, the height of the first cylinder for 0.08~
0.12 times of waveguide wavelength；A diameter of 0.3~0.4 times of waveguide wavelength of the second cylinder, the height of the second cylinder for 0.05~
0.07 times of waveguide wavelength.
In above-described embodiment, the radiation efficiency of antenna can be effectively improved using coaxial translative mode, use is mutually perpendicular
Waveguide is inputted, then linear polarization or circular polarisation can be realized by way of adjusting input signal phase.
In a word, the utility model in coaxial cavity by setting coaxial probe, and is aided with the mode of step matching layer, realizes
Lossless conversion of the waveguide signal to coaxial signal, the difficulty of processing of gap opening coupling was both avoided, turn avoid air band
The loss problem of line feed, is a significant improvement relative to prior art.
It is to be appreciated that to be intended merely to facilitate this area common for the above-mentioned narration for this patent embodiment
The exemplary description that technical staff understands this patent scheme and enumerated, does not imply that the protection domain of this patent is limited solely to
In this few example, those of ordinary skill in the art completely can on the premise of making and fully understanding to the art of this patent scheme,
In the form of not paying any creative work, by taking each example cited by this patent combination technique feature, replacing
Some technical characteristics, more technical characteristics etc. mode is added, obtain more embodiments, all these specific implementations
Mode is within the covering scope of patent claims book, and therefore, these new embodiments also should be in this patent
Protection domain within.
In addition, for the purpose for simplifying narration, this patent may also not enumerate some ordinary specific embodiments, this
A little schemes are that those of ordinary skill in the art can expect naturally after it understanding of the art of this patent scheme, it is clear that this
A little schemes should be also included within the protection domain of this patent.
For the purpose for simplifying narration, above-mentioned each embodiment may only up to for the extent of disclosure of ins and outs
The degree that can voluntarily make a decision to those skilled in the art, i.e. there is no disclosed ins and outs for above-mentioned embodiment,
Those of ordinary skill in the art completely can be in the case where not paying any creative work, in filling for the art of this patent scheme
Divide under prompting, completed by means of the disclosed document of textbook, reference book, paper, patent, audio-visual product etc., or, this
A little details are the contents that can voluntarily be maked decision according to actual conditions under being generally understood that of those of ordinary skill in the art.
It can be seen that even if these underground ins and outs, the open adequacy of the art of this patent scheme will not also be impacted.
In a word, it is any on the basis of explanation effect of the patent specification to claims protection domain is combined
Fall into the specific embodiment of patent claims book covering scope, within the protection domain of this patent..
Claims (7)
1. a kind of two-terminal feeding formula array antenna, it is characterised in that including the radial chamber and coaxial cavity to communicate with each other, the spoke
Penetrate the surface that chamber is located at the coaxial cavity, the end face center of the bottom center of the radial chamber and the coaxial cavity is respectively provided with
Square connector, has multiple radiation ports on the top surface of the radial chamber, the coaxial cavity have two it is mutually perpendicular
Waveguide input port, the coaxial cavity are provided with the vertical cylinder spy with coaxial nature on the bottom surface at intracavitary center
Pin, the height of the probe are 1/6~1/4 times of waveguide wavelength, and the radius of the probe is 1/15~1/10 times of waveguide ripple
Long, the probe points to the center of the radial chamber, and the bottom of the probe is provided with two-stage matching step, and the two-stage matches platform
Rank is made up of the first cylinder and the second cylinder coaxial with probe, and first cylinder is on the bottom surface of coaxial cavity, institute
State the second cylinder to be located on the top surface of the first cylinder, the diameter of second cylinder is less than the diameter of first cylinder.
2. two-terminal feeding formula array antenna according to claim 1, it is characterised in that the radiation port to be square,
And the length of side of square-shaped radiation port is 0.6~0.8 times of waveguide wavelength.
3. two-terminal feeding formula array antenna according to claim 1, it is characterised in that the radiation port is circle,
And a diameter of 0.6~0.8 times of waveguide wavelength of circular radiation port.
4. two-terminal feeding formula array antenna according to claim 1, it is characterised in that the radiation rectangular battle array in port
Column is arranged.
5. two-terminal feeding formula array antenna according to claim 1, it is characterised in that the radial chamber and coaxial cavity it
Between connected by square waveguide transmission section, the inwall length of side of the waveguide transmission section is 0.5~0.7 times of waveguide wavelength, institute
The height for stating waveguide transmission section is 0.35~0.55 times of waveguide wavelength.
6. two-terminal feeding formula array antenna according to claim 1, it is characterised in that the coaxial cavity corresponds to two
Cavity wall at the waveguide end of individual waveguide input port is the short-circuit wall with matching feature, the center of the short-circuit wall and institute
State the waveguide wavelength that the distance between axis of probe is 0.48~0.52 times.
7. two-terminal feeding formula array antenna according to claim 1, it is characterised in that first cylinder it is a diameter of
0.5~0.7 times of waveguide wavelength, the height of first cylinder are 0.08~0.12 times of waveguide wavelength；Second cylinder
A diameter of 0.3~0.4 times of waveguide wavelength, the height of second cylinder is 0.05~0.07 times of waveguide wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920459.2U CN206976567U (en) | 2017-07-27 | 2017-07-27 | A kind of two-terminal feeding formula array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920459.2U CN206976567U (en) | 2017-07-27 | 2017-07-27 | A kind of two-terminal feeding formula array antenna |
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| Publication Number | Publication Date |
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| CN206976567U true CN206976567U (en) | 2018-02-06 |
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| CN201720920459.2U Active CN206976567U (en) | 2017-07-27 | 2017-07-27 | A kind of two-terminal feeding formula array antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359405A (en) * | 2017-07-27 | 2017-11-17 | 中国电子科技集团公司第五十四研究所 | A kind of two-terminal feeding formula array antenna |
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2017
- 2017-07-27 CN CN201720920459.2U patent/CN206976567U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359405A (en) * | 2017-07-27 | 2017-11-17 | 中国电子科技集团公司第五十四研究所 | A kind of two-terminal feeding formula array antenna |
| CN107359405B (en) * | 2017-07-27 | 2023-04-07 | 中国电子科技集团公司第五十四研究所 | Dual-port feed type array antenna |
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