CN107069228A - A kind of rectangular groove waveguide electromagnetic horn - Google Patents
A kind of rectangular groove waveguide electromagnetic horn Download PDFInfo
- Publication number
- CN107069228A CN107069228A CN201710402414.0A CN201710402414A CN107069228A CN 107069228 A CN107069228 A CN 107069228A CN 201710402414 A CN201710402414 A CN 201710402414A CN 107069228 A CN107069228 A CN 107069228A
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- Prior art keywords
- electromagnetic horn
- rectangular groove
- groove waveguide
- conductor plate
- media
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Classifications
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- 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
- H01Q13/02—Waveguide horns
-
- 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
- H01Q13/02—Waveguide horns
- H01Q13/0233—Horns fed by a slotted waveguide array
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a kind of rectangular groove waveguide electromagnetic horn, including the upper conductor plate and lower conductor plate being parallel to each other and position is relative, two sides of upper conductor plate and lower conductor plate are supported and fixed by dielectric support block, at the middle part of upper conductor plate, upward evagination sets upper convex portion, convex portion under correspondence upper convex portion evagination is set on lower conductor plate；Upper convex portion is matched to form rectangular groove waveguide and electromagnetic horn with lower convex portion, and rectangular groove waveguide is connected with electromagnetic horn transition；Matched media is set in the portion that protrudes above and lower protuberance, matched media one end is in rectangular groove waveguide, and the other end is in electromagnetic horn.The beneficial effects of the present invention are transmission line of the groove waveguides as microwave signal is employed, larger power can be transmitted；Realize the electromagnetic horn of rectangular groove waveguide structure type；The matching state at this is improved using filled media near the link position of rectangular groove waveguide and electromagnetic horn, reflectance factor is reduced, so as to enhance effective electromagenetic wave radiation.
Description
Technical field
The present invention relates to rectangular groove waveguide feedhorn technology field, special task is in millimeter wave, submillimeter wave frequency model
Microwave emission and reception device in enclosing.
Background technology
In millimere-wave band, coaxial line, the transmission loss of microstrip transmission line are dramatically increased, and use waveguide transmission line, such as square more
Shape waveguide and circular waveguide etc., but their caliber size is obviously reduced with frequency increase, power capacity is small and the high-end loss of frequency
Also substantially increase, power capacity is restricted.Nineteen fifty-two Tischer.F.J proposes the concept of groove waveguides, the seventies for the first time
Later stage, Haris et al. develops the element of some rectangular groove waveguides, and the groove waveguides of then circular and other cross sectional shapes are also successive
Occur.Involve submillimeter region in millimeter, the size of rectangular waveguide is smaller, adds the difficulty of processing, its transmission loss also with
The rapid increase of frequency rise, groove waveguides are compared with rectangular waveguide, and it decays, and small, dispersion is low, power capacity is high, easy to process, is
Millimeter involves the design of submillimeter wave device and provides a choice direction.
Electromagnetic horn is a kind of widely used microwave antenna, and its power capacity simple in construction is big, rectangular groove waveguide loudspeaker
Antenna is in end to open the horn mouth being epitaxially formed one by one by rectangular groove waveguide.Rectangular groove waveguide electromagnetic horn also possesses square
The characteristics of shape groove waveguides, such as bandwidth, decay are small, can be used as primary radiator or secondary radiator.Rectangle slot wave
Lead terminal and open and form electromagnetic horn, the bell-mouthed subtended angle of Reasonable adjustment can control the radiation characteristic of loudspeaker, bell-mouthed
Direction can form preferable electromagnetic wave directed radiation.But, the size of the position rectangular groove waveguide opened in bore there occurs
Change, has the discontinuous phenomenon of structure, there is serious reflection of electromagnetic wave；Bell-mouthed end face, electromagnetic wave is from opening
Place is to external radiation, and the impedance mismatch of loudspeaker and the external space equally exists serious reflection of electromagnetic wave.Therefore loudspeaker change in size
Discontinuous and open end reflection problems, be also one of problem of electromagnetic horn research.
The content of the invention
The problem to be solved in the present invention, is existing rectangular groove waveguide electromagnetic horn rectangle at the position that bore opens
The size of groove waveguides changes, and there is reflection of electromagnetic wave；Also there is the skill of serious reflection of electromagnetic wave in bell-mouthed end face
Art problem.
To achieve the above object, the rectangular groove waveguide electromagnetic horn that the present invention is provided includes being parallel to each other and position is relative
Two sides of upper conductor plate and lower conductor plate, upper conductor plate and lower conductor plate are supported and fixed by dielectric support block, are led upper
The upward evagination in middle part of body plate sets upper convex portion, convex portion under correspondence upper convex portion evagination is set on lower conductor plate；Upper convex portion is with
Convex portion is matched to form rectangular groove waveguide and electromagnetic horn, and rectangular groove waveguide is connected with electromagnetic horn transition, and rectangular groove waveguide is with being situated between
Matter support block is parallel；Matched media is set in the portion that protrudes above and lower protuberance, matched media one end is in rectangular groove waveguide, separately
One end is in electromagnetic horn, at least one piece of the matched media, and gap is provided between every Block- matching medium.
The present invention can regard two part compositions as from structure：Rectangular groove waveguide and electromagnetic horn.Rectangular groove waveguide
Transmission line is the feeding line portion of antenna, by the microwave energy transfer of transmitting to electromagnetic horn.Rectangular groove waveguide electromagnetic horn be
On the basis of rectangular groove waveguide, the horn mouth being epitaxially formed, rectangular groove waveguide and loudspeaker are driven one by one in end by rectangular groove waveguide
On interface between antenna, impedance variations are caused because of structure change, structure can discontinuously cause the reflection of electromagnetic wave；
Addition matched media in rectangular groove waveguide and electromagnetic horn, for adjusting the impedance matching at this, reduces the reflection of electromagnetic wave.
Further, rectangular groove waveguide electromagnetic horn of the present invention also includes end face overwrite media, and end face overwrite media is placed on
On the end face of the signal output part of electromagnetic horn.Dust impurity enters numerous unknown interference that system can be brought by horn mouth
And influence, or even antenna system is damaged, port surface overwrite media is located on the bell-mouthed end face of groove waveguides, can seal horn mouth
Close, it is ensured that the working stability of system, while also there is certain impedance matching effect.End face overwrite media is also smaller than electromagnetic horn
The size of output end face.
The dielectric constant of above-mentioned dielectric support block, matched media and end face overwrite media is 2~5.
The thickness of matched media is 0.5mm~3mm, and the part that matched media is located in rectangular groove waveguide is rectangle, is located at
Part in electromagnetic horn is trapezoidal.I.e. above-mentioned matched media is made up of connected rectangle and trapezoidal board-like material, and the one of rectangle
Side connects trapezoidal upper bottom, and isometric with upper bottom, and rectangle part matched media is located in rectangular channel, trapezoidal portions matched media position
In electromagnetic horn.The height that matched media is located at matched media near the interface of groove waveguides and loudspeaker can be full height,
Or Partial Height, the size of matched media, shape, filling can influence the regulation of impedance matching.By adding matched media,
Improve because of waveguide bore extends bring discontinuous and reflection that cause electromagnetic wave, enhance the Net long wave radiation of antenna.
The shape of above-mentioned matched media is alternatively rectangle, and a rectangle part is left part in loudspeaker day in rectangular channel
In line.
Further, it is silver-plated or gold-plated in rectangular groove waveguide inner surface.To increase the conductance of inner surface, so that further
Reduce transmission loss.
Further, it is silver-plated or gold-plated in electromagnetic horn inner surface.
Above-mentioned dielectric support block, matched media and end face overwrite media are made up of polytetrafluoroethylene (PTFE).Polytetrafluoroethylene (PTFE) has
Good stability and electrical insulating property, are the material of low-loss low-k.
Further, above-mentioned electromagnetic horn is E-plane sectored horn, H face sectoral horns or pyramid loudspeaker.
Compared with prior art, the beneficial effects of the present invention are：The electromagnetic horn realized using rectangular groove waveguide, can
Realize the millimeter wave of relatively high power, the Microwave emission in the range of submillimeter wave frequency and reception；Can be adjusted using matched media and
Improve the reflection problems between rectangular groove waveguide and electromagnetic horn, the size of matched media can be adjusted, the quantity of matched media
It can suitably be chosen with the position of filling, can neatly adjust the impedance matching of rectangular groove waveguide and electromagnetic horn, reduce
Reflection condition at this, improves the standing wave of working frequency, adds total Effective Radiated Power.Will by port surface overwrite media
Horn mouth is closed, and the interference or influence of impurity band can be avoided, it is ensured that the working stability of system, while also there is certain impedance
Matching effect.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is section of structure of the present invention；
Fig. 3 is matched media schematic shapes of the present invention；
Fig. 4 is end face overwrite media schematic diagram of the present invention；
Fig. 5 is the radiation analogous diagram of rectangular groove waveguide electromagnetic horn of the present invention；
Fig. 6 is the standing wave pattern of the port of prior art groove waveguides electromagnetic horn；
Fig. 7 is the standing wave pattern of the port of groove waveguides electromagnetic horn of the embodiment of the present invention.
Marked in figure：
1. upper conductor plate, 2. lower conductor plates, 3. dielectric support blocks, 4. electromagnetic horns, 5. rectangular groove waveguides, 6. matchings are situated between
Matter, 7. end face overwrite medias.
Embodiment
Further described below in conjunction with the drawings and specific embodiments.
As shown in figure 1, in the present invention, rectangular groove waveguide electromagnetic horn includes the upper conductor plate being parallel to each other and position is relative
1 and lower conductor plate 2, two sides of upper conductor plate and lower conductor plate are supported and fixed by dielectric support block 3, in upper conductor plate
The upward evagination in middle part sets upper convex portion, convex portion under correspondence upper convex portion evagination is set on lower conductor plate；Upper convex portion and lower convex portion
With rectangular groove waveguide 5 and electromagnetic horn 4 is formed, rectangular groove waveguide 5 is connected with the transition of electromagnetic horn 4；Rectangular groove waveguide 5 and loudspeaker
The inner surface of antenna 4 is silver-plated, and the one end of matched media 6 is in rectangular groove waveguide, and the other end is in electromagnetic horn.Electromagnetic horn 4 it is defeated
Go out end face provided with end face overwrite media 7, its shape has certain resistance as shown in figure 4, end face overwrite media 7 closes horn mouth
Anti- matching effect.The present embodiment end face overwrite media and dielectric support block are polytetrafluoroethylene (PTFE).
The specific size of the present embodiment is：The height of rectangular channel projection is 5mm, and width is 6mm, rectangular groove waveguide it is total
Width is 52mm, and rectangular channel is 27.4mm with the total length of electromagnetic horn, and the width of the dielectric support block of both sides is 5mm, high
Spend for 6mm.The axial length of electromagnetic horn part is 7.5mm, and bell-mouthed width is 14.66mm, and bell-mouthed height is
26mm.Operating center frequency is 50GHz, and by emulation, the gain of groove waveguides electromagnetic horn is as shown in fig. 6, greatest irradiation direction
For the axis direction of groove waveguides loudspeaker, gain reaches 20dB.
The relative dielectric constant of the matched media of this example is 3.48, and size is 2mm × 8mm rectangle, and its thickness is 1mm,
Positioned at rectangular channel and the intersection of electromagnetic horn, a matched media part for the rectangle is in rectangular channel, and remainder is in loudspeaker
In antenna.Employ after matched media, the standing wave of port is improved.
There is the discontinuous of structure in groove waveguides electromagnetic horn, change in size can cause the reflection of electromagnetic wave, influence port
Standing wave, the standing wave of the port of groove waveguides electromagnetic horn is as shown in Figure 6.Due to the interface between rectangular groove waveguide and electromagnetic horn
On, impedance variations are caused because of structure change, matched media is added here, thus it is possible to vary impedance, the impedance at this is adjusted
Matching.The matched media of Partial Height is with the addition of, the standing wave of port is as shown in fig. 7, the standing wave of port is obtained at centre frequency
Improve.
Above-described embodiment is only preferred embodiment, not to the restriction of embodiment.For the common of art
For technical staff, it can also make other changes in different forms on the basis of the above description.It is all according to the present invention
The equivalent changes and modifications that the content of claim is made, all should be used as the technology category of the present invention.
Claims (9)
1. a kind of rectangular groove waveguide electromagnetic horn, it is characterised in that the upper conductor plate including being parallel to each other and position is relative is led with
Two sides of body plate, upper conductor plate and lower conductor plate are supported and fixed by dielectric support block, upward at the middle part of upper conductor plate
Evagination sets upper convex portion, convex portion under correspondence upper convex portion evagination is set on lower conductor plate；Upper convex portion matches to form square with lower convex portion
Shape groove waveguides and electromagnetic horn, rectangular groove waveguide are connected with electromagnetic horn transition；The setting in the portion that protrudes above and lower protuberance
With medium, matched media one end is in rectangular groove waveguide, and the other end is in electromagnetic horn, at least one piece of the matched media, often
Gap is provided between Block- matching medium.
2. rectangular groove waveguide electromagnetic horn as claimed in claim 1, it is characterised in that rectangular groove waveguide electromagnetic horn also includes
End face overwrite media, the end face overwrite media is placed on the end face of the signal output part of electromagnetic horn.
3. rectangular groove waveguide electromagnetic horn as claimed in claim 2, it is characterised in that dielectric support block, matched media and end face
The dielectric constant of overwrite media is 2~5.
4. rectangular groove waveguide electromagnetic horn as claimed in claim 1, it is characterised in that the thickness of matched media be 0.5mm~
3mm, the part that matched media is located in rectangular groove waveguide is rectangle, and the part in electromagnetic horn is trapezoidal.
5. rectangular groove waveguide electromagnetic horn as claimed in claim 1, it is characterised in that the matched media is shaped as rectangle.
6. rectangular groove waveguide electromagnetic horn as claimed in claim 1, it is characterised in that the rectangular groove waveguide inner surface is silver-plated
Or it is gold-plated.
7. rectangular groove waveguide electromagnetic horn as claimed in claim 1, it is characterised in that the electromagnetic horn inner surface it is silver-plated or
It is gold-plated.
8. rectangular groove waveguide electromagnetic horn as claimed in claim 3, it is characterised in that the dielectric support block, matched media and
End face overwrite media is made up of polytetrafluoroethylene (PTFE).
9. rectangular groove waveguide electromagnetic horn as claimed in claim 1, it is characterised in that the electromagnetic horn is the fan-shaped loudspeaker in E faces
, H face sectoral horns or pyramid loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710402414.0A CN107069228B (en) | 2017-06-01 | 2017-06-01 | Rectangular groove waveguide horn antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710402414.0A CN107069228B (en) | 2017-06-01 | 2017-06-01 | Rectangular groove waveguide horn antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107069228A true CN107069228A (en) | 2017-08-18 |
| CN107069228B CN107069228B (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710402414.0A Active CN107069228B (en) | 2017-06-01 | 2017-06-01 | Rectangular groove waveguide horn antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN107069228B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487625A (en) * | 2003-09-04 | 2004-04-07 | 东南大学 | High-power circular slot waveguide antenna |
| JP2006324916A (en) * | 2005-05-18 | 2006-11-30 | Japan Radio Co Ltd | Antenna assembly and its dielectric member |
| CN103414026A (en) * | 2013-07-31 | 2013-11-27 | 南京理工大学 | Millimeter wave cone beam antenna based on circular waveguide TM0n model |
| CN103811876A (en) * | 2014-02-26 | 2014-05-21 | 中国工程物理研究院电子工程研究所 | Chip-medium filling horn antenna applied to terahertz wave band phase array |
| CN105024141A (en) * | 2015-07-13 | 2015-11-04 | 中国电子科技集团公司第十研究所 | Dielectric-filled circular waveguide circularly polarized antenna |
| CN105789904A (en) * | 2016-05-03 | 2016-07-20 | 南京信息职业技术学院 | Slot antenna based on rectangular groove waveguide |
| CN206758654U (en) * | 2017-06-01 | 2017-12-15 | 南京信息职业技术学院 | A kind of rectangular groove waveguide electromagnetic horn |
-
2017
- 2017-06-01 CN CN201710402414.0A patent/CN107069228B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487625A (en) * | 2003-09-04 | 2004-04-07 | 东南大学 | High-power circular slot waveguide antenna |
| JP2006324916A (en) * | 2005-05-18 | 2006-11-30 | Japan Radio Co Ltd | Antenna assembly and its dielectric member |
| CN103414026A (en) * | 2013-07-31 | 2013-11-27 | 南京理工大学 | Millimeter wave cone beam antenna based on circular waveguide TM0n model |
| CN103811876A (en) * | 2014-02-26 | 2014-05-21 | 中国工程物理研究院电子工程研究所 | Chip-medium filling horn antenna applied to terahertz wave band phase array |
| CN105024141A (en) * | 2015-07-13 | 2015-11-04 | 中国电子科技集团公司第十研究所 | Dielectric-filled circular waveguide circularly polarized antenna |
| CN105789904A (en) * | 2016-05-03 | 2016-07-20 | 南京信息职业技术学院 | Slot antenna based on rectangular groove waveguide |
| CN206758654U (en) * | 2017-06-01 | 2017-12-15 | 南京信息职业技术学院 | A kind of rectangular groove waveguide electromagnetic horn |
Non-Patent Citations (1)
| Title |
|---|
| 张照锋: "圆形槽波导喇叭天线的研究", 《中小企业管理与科技(下旬刊)》 * |
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| CN107069228B (en) | 2023-08-08 |
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