CN207896279U - A kind of high efficiency broadband horn array antenna - Google Patents
A kind of high efficiency broadband horn array antenna Download PDFInfo
- Publication number
- CN207896279U CN207896279U CN201721827306.XU CN201721827306U CN207896279U CN 207896279 U CN207896279 U CN 207896279U CN 201721827306 U CN201721827306 U CN 201721827306U CN 207896279 U CN207896279 U CN 207896279U
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- horn
- piece portion
- single ridge
- ridge piece
- array antenna
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Abstract
The utility model discloses a kind of high efficiency broadband horn array antennas,Electromagnetic horn bandwidth can especially be effectively improved,The high effective antenna array of ridged horn structure simple in structure,Its structure is made of array antenna multiple electromagnetic horns,Single ridge piece portion is constructed in the resonant cavity of each electromagnetic horn,Single ridge piece portion is upwardly extended by the bottom of resonant cavity,The lower edge of the radiation port of electromagnetic horn is located above single ridge piece portion,There are the coupling gaps for coupled signal between the bottom and resonant cavity in single ridge piece portion,Strip line is connected in the bottom of each electromagnetic horn,The strip line stretches in corresponding electromagnetic horn coupling gap,Each strip line is synthetically formed output signal all the way by broadband power divider,The utility model uses conventional horn array and is combined with ridge waveguide broadband feed,Realize the efficient purpose of broad-band antenna.Compared to conventional horn array, bandwidth greatly improves；It is efficient compared to common ridged horn antenna.
Description
Technical field
The utility model is related to belong to ELECTROMAGNETIC REFLECTION unit cell arrangement field, especially can effectively be carried there is provided a kind of
High electromagnetic horn bandwidth, the high effective antenna array of ridged horn structure simple in structure.
Background technology
Conventional horn antenna is as Wide band array antenna unit, the disadvantage is that resonant cavity size is big, leads to array-fed net
Network space too it is small can not winding displacement, cannot be satisfied requirement；Ultra wide band may be implemented in conventional ridged horn, the disadvantage is that complicated be not easy
Processing is used usually as independent loudspeaker or feed.As unit, its size is more than a wavelength for it, and frequency is high when spelling battle array
Phenomena such as extreme direction figure will appear graing lobe.
Therefore, existing antenna scheme all can not preferably meet the requirement of broadband horn array antenna.
By that can realize bandwidth expansion to loudspeaker introducing monolithic ridge and reduce resonant cavity size, its main feature is that structure
Simply, easy to process after spelling battle array.
Utility model content
The purpose of this utility model is to provide a kind of wideband ridge horn antennas as unit carries out spelling battle array, which is swashing
It encourages the single ridge piece of intracavitary addition and carrys out spread bandwidth, while removing the ridge piece on traditional ridged horn.Antenna element is fed by band line, very
Facilitate to form array.The antenna both effectively improves bandwidth, in turn simplifies structure, and easy to process and feed realizes one well
Kind high-gain broadband array antenna.
The purpose of this utility model is realized in：
A kind of high efficiency broadband horn array antenna comprising, array antenna is made of multiple electromagnetic horns, each loudspeaker
Single ridge piece portion 22 is all constructed in the resonant cavity 2 of antenna, single ridge piece portion is upwardly extended by the bottom of resonant cavity 2, loudspeaker
The lower edge of the radiation port 11 of antenna is located at 22 top of single ridge piece portion, and there are for coupling between the bottom and resonant cavity in single ridge piece portion
The coupling gap 23 for closing signal, connects strip line, the strip line 32 stretches to correspondence in the bottom of each electromagnetic horn
Electromagnetic horn couples in gap, and each strip line is synthetically formed output signal all the way by broadband power divider.
Further, the bottom end in single ridge piece portion 22 is connected with the bottom of resonant cavity.
Further, each antenna element shares a partition board with adjacent antenna element.
Further, the shape of each electromagnetic horn radiation port 11 is rectangle, square, regular polygon, circle or ten
Word slit-shaped.
Further, the grading profile in single ridge piece portion 22 is trapezoidal, multistage trapezoidal, exponential curve or arbitrary gradient ramp.
Further, the bottom of array antenna is provided with cabling channel 31, and the strip line extends along the inner cavity of cabling channel.
Further, the top in single ridge piece portion and the bottom of radiation port 11 are along being connected or single ridge piece portion
There are gaps between for top and the bottom of radiation port.
The utility model has the following advantages that compared with the background art：
1. the utility model uses conventional horn array and is combined with ridge waveguide broadband feed, broad-band antenna height is realized
The purpose of efficiency.Compared to conventional horn array, bandwidth greatly improves；It is efficient compared to common ridged horn antenna.
2. the utility model antenna array structure is simple, easy to process, at low cost.
3. by devising novel ridge structure, the ridge structure in horn mouth has been weeded out so that, the present apparatus maintains together
The high bandwidth effect of sample, while having simplified structure so that single unit system is easy to process.
4. at the beginning of the design of resonant cavity, size determination is determined that lowest operating frequency is cut by waveguide by lowest operating frequency
Only frequency is substantially estimated.Due to adding ridge piece in waveguide, size can be effectively reduced, because of the rectangle relative to same size
Waveguide, the cutoff wavelength bigger of ridge waveguide, and characteristic impedance smaller, bandwidth are also wider.Using with ridge waveguide, ruler is effectively reduced
Very little, broadband character is better.Ladder transition realization is fitted through between ridge waveguide and radiation port.This antenna is using four section ladders
Matching is realized in transition.
5. radiating layer is designed as pyramid loudspeaker.Radial chamber upper edge size be unit size, it is lower along size between resonant cavity
Between upper edge size, Antenna Construction Design is realized to be realized by being layered.With band line chamber body center segment, pass through numerical control after layering
Machine tooling forms.Antenna aperture radiation efficiency can reach 90% or more through emulation, and a frequency multiplication may be implemented in the beamwidth of antenna.
6. antenna feeding network is realized by strip line.Strip line network is made of rectangular cavities and metal tape line, is led to
It crosses printed board and realizes metal tape line cabling.
7. in order to which graing lobe does not occur in antenna array pattern, this patent designs antenna element size and is not more than a wavelength.
Antenna element radiation port size is generally less than the wavelength of maximum operating frequency.
Description of the drawings
Fig. 1 is the utility model antenna dimensional structure diagram.
Fig. 2 is 45 degree of view stereo structural schematic diagrams of the utility model antenna.
Fig. 3 is the utility model aerial radiation layer dimensional structure diagram.
Fig. 4 is the utility model antenna chamber and feed layer dimensional structure diagram.
Attached body description of symbols：Loudspeaker 1, resonant cavity 2, single ridge piece portion 22, coupling gap 23, delivery outlet 3, are walked radiation port 11
Wire casing 31, strip line 32.
Specific implementation mode
The utility model is described further below according to attached drawing 1-4：
A kind of high efficiency broadband horn array antenna, array antenna are made of multiple electromagnetic horns, and each electromagnetic horn is pressed
It is arranged according to 4*4, each antenna element and the shared partition board of adjacent antenna element, in the resonant cavity 2 of each electromagnetic horn
Single ridge piece portion 22 is constructed, single ridge piece portion is upwardly extended by the bottom of resonant cavity 2, the radiation port 11 of electromagnetic horn
Lower edge is located at 22 top of single ridge piece portion, and the top in single ridge piece portion and the bottom of radiation port 11 are along being connected or single ridge
There are gaps between for the top in piece portion and the bottom of radiation port, and there are for coupling letter between the bottom and resonant cavity in single ridge piece portion
Number coupling gap 23, connect strip line in the bottom of each electromagnetic horn, the strip line 32 stretches to corresponding loudspeaker
Antenna couples in gap, and the bottom of array antenna is provided with cabling channel 31, and the strip line extends along the inner cavity of cabling channel, respectively
A strip line is synthetically formed output signal all the way by broadband power divider.
To ensure good feed, the bottom end in single ridge piece portion 22 is connected with the bottom of resonant cavity.
The shape of each electromagnetic horn radiation port 11 is rectangle, square, regular polygon, circle or cross gap shape.
The grading profile in single ridge piece portion 22 is trapezoidal, multistage trapezoidal, exponential curve or arbitrary gradient ramp.
Broadband power divider is that multi-path line is finally synthesizing to the feeder line structure of circuit all the way.
The design principle of the utility model is illustrated below：
1. being designed as conical horn according to working frequency.It radiates layer unit bore and is not more than the corresponding wave of minimum frequency of operation
It is long.Conical horn designs the array radiation mouth face of M × N number of radiating element 11 according to the requirement of antenna gain, and M or N are more than 1
Natural number.
2. constructing single ridge piece portion in the resonant cavity of each electromagnetic horn, single ridge piece portion is upward by the bottom of resonant cavity
Extend, the lower edge of the radiation port of electromagnetic horn is located above single ridge piece portion, between the bottom and resonant cavity in single ridge piece portion there are with
In the coupling gap of coupled signal.Single ridge piece portion is low wide and up narrow, and shape is trapezoidal, stairstepping, can also be by wide to narrow
Arbitrary grading profile.There is band line coupling aperture on single ridge piece portion opposite, and coupling slot excitation resonance is transmitted a signal to by band line
Cavity enables microwave signal in resonant cavity resonance and is radiate by radiating layer.
3. antenna element is fed by broadband feeding network.Feeding network uses strip line form, passes through broadband work(point
Network is synthetically formed output signal all the way.
Claims (7)
1. a kind of high efficiency broadband horn array antenna, it is characterised in that：Array antenna is made of multiple electromagnetic horns, each loudspeaker
A single ridge piece portion (22) is all constructed in the resonant cavity (2) of antenna, single ridge piece portion is upward by the bottom of resonant cavity (2)
Extend, the lower edge of the radiation port (11) of electromagnetic horn is located above single ridge piece portion (22), the bottom and resonant cavity in single ridge piece portion it
Between there are the coupling gaps (23) for coupled signal, connect strip line in the bottom of each electromagnetic horn, described is band-like
Line (32) stretches in corresponding electromagnetic horn coupling gap, and each strip line is synthetically formed output all the way by broadband power divider to be believed
Number.
2. a kind of high efficiency broadband horn array antenna according to claim 1, it is characterised in that：Single ridge piece portion (22)
Bottom end is connected with the bottom of resonant cavity.
3. a kind of high efficiency broadband horn array antenna according to claim 1, it is characterised in that：Each antenna element with
Adjacent antenna element shares a partition board.
4. a kind of high efficiency broadband horn array antenna according to claim 1, it is characterised in that：Each electromagnetic horn spoke
The shape of loophole (11) is rectangle, square, regular polygon, circle or cross gap shape.
5. a kind of high efficiency broadband horn array antenna according to claim 1, it is characterised in that：Single ridge piece portion (22)
Grading profile is trapezoidal, multistage trapezoidal, exponential curve or arbitrary gradient ramp.
6. a kind of high efficiency broadband horn array antenna according to claim 1, it is characterised in that：The bottom of array antenna
It is provided with cabling channel (31), the strip line extends along the inner cavity of cabling channel.
7. a kind of high efficiency broadband horn array antenna according to claim 1, it is characterised in that：Single ridge piece portion
Top and the bottom of radiation port (11) along being connected or there are seams between the top in single ridge piece portion and the bottom of radiation port
Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721827306.XU CN207896279U (en) | 2017-12-25 | 2017-12-25 | A kind of high efficiency broadband horn array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721827306.XU CN207896279U (en) | 2017-12-25 | 2017-12-25 | A kind of high efficiency broadband horn array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207896279U true CN207896279U (en) | 2018-09-21 |
Family
ID=63549704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721827306.XU Active CN207896279U (en) | 2017-12-25 | 2017-12-25 | A kind of high efficiency broadband horn array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207896279U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346861A (en) * | 2017-12-25 | 2018-07-31 | 中国电子科技集团公司第五十四研究所 | A kind of high efficiency broadband horn array antenna |
| CN109599660A (en) * | 2018-11-23 | 2019-04-09 | 安徽四创电子股份有限公司 | A kind of phased array element of open ended waveguide |
| CN114639974A (en) * | 2022-04-15 | 2022-06-17 | 盛纬伦(深圳)通信技术有限公司 | Millimeter wave broadband horn array antenna based on ridge gap waveguide technology |
| CN115101937A (en) * | 2022-06-20 | 2022-09-23 | 北京航空航天大学 | Horn feed source |
-
2017
- 2017-12-25 CN CN201721827306.XU patent/CN207896279U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346861A (en) * | 2017-12-25 | 2018-07-31 | 中国电子科技集团公司第五十四研究所 | A kind of high efficiency broadband horn array antenna |
| CN109599660A (en) * | 2018-11-23 | 2019-04-09 | 安徽四创电子股份有限公司 | A kind of phased array element of open ended waveguide |
| CN114639974A (en) * | 2022-04-15 | 2022-06-17 | 盛纬伦(深圳)通信技术有限公司 | Millimeter wave broadband horn array antenna based on ridge gap waveguide technology |
| CN115101937A (en) * | 2022-06-20 | 2022-09-23 | 北京航空航天大学 | Horn feed source |
| CN115101937B (en) * | 2022-06-20 | 2023-11-03 | 北京航空航天大学 | Horn feed source |
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