CN108258427B - Hidden feed ridge waveguide slot antenna - Google Patents
Hidden feed ridge waveguide slot antenna Download PDFInfo
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- CN108258427B CN108258427B CN201711400071.0A CN201711400071A CN108258427B CN 108258427 B CN108258427 B CN 108258427B CN 201711400071 A CN201711400071 A CN 201711400071A CN 108258427 B CN108258427 B CN 108258427B
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- ridge waveguide
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- ridge
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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
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
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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
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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
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Abstract
The application discloses a hidden feed ridge waveguide slot antenna, which comprises a slot leaky ridge waveguide and a ridge waveguide coaxial converter which are connected with each other, wherein the slot leaky ridge waveguide comprises a ridge waveguide and a plurality of radiation slots arranged on the upper surface of the ridge waveguide, the ridge waveguide coaxial converter comprises a ridge waveguide cavity and an SMA joint, the lower bottom surfaces of the ridge waveguide and the ridge waveguide cavity are provided with convex grooves, the cross sections of the ridge waveguide and the ridge waveguide cavity are in inverted concave shapes, a metal table is arranged in the convex groove of the ridge waveguide cavity, and the SMA joint is arranged in the metal table in a penetrating way; reasonable radiation slot layout is carried out on the ridge waveguide, so that the effects of high gain and low side lobe are achieved; the ridge waveguide coaxial converter is internally provided with the metal table, the SMA connector is hidden and arranged in the ridge waveguide coaxial converter, the effects of reasonably utilizing space and protecting the SMA connector are achieved, and the effect of reducing the size of the antenna is achieved.
Description
Technical Field
The application relates to the technical field of microwaves, in particular to a hidden feed ridge waveguide slot antenna applied to various aspects such as vehicle-mounted, airborne, ship-borne, missile-borne, meteorological, navigation management and harbor management radar systems.
Background
The waveguide slot antenna is a product which is produced along with the development of a radar system, the ground air defense radar which is first generated in the second combat period is continuously improved along with the continuous improvement of a processing technology, the novel antenna layer is endless in application range and wider in application range, the application range is expanded from the national defense field to the civil field, military aspects comprise various early warning radars, guidance radars, detection radars and the like, and civil aspects comprise weather radars, navigation management radars, maritime radars and the like.
The literature "wideband single-ridge waveguide antenna array design" (journal: modern electronics, publication date: 2006, author: gold sword, wang Wei, mo Xiaomei) gives a design of wideband single-ridge waveguide antenna, which is divided into several sub-arrays and fed through a waveguide power divider at the rear. The size of the waveguide is reduced by adopting the mode of the ridge waveguide, but the size and the position of the slit cut on the waveguide are the same, the effect of low sidelobe cannot be achieved, and in addition, the feeding is carried out in a mode of feeding by adopting the waveguide power divider, so that the whole size of the antenna is larger, and the ridge waveguide slit antenna which meets the requirements of low cross polarization and low sidelobe while reducing the size is not available at present.
Disclosure of Invention
In order to overcome the defects in the prior art, the application provides the hidden feed ridge waveguide slot antenna which has the advantages of reduced size, reasonable structure, low cross polarization and low side lobe.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the utility model provides a hidden feed ridge waveguide slot antenna, includes interconnect's gap leaky wave ridge waveguide and the coaxial converter of ridge waveguide, gap leaky wave ridge waveguide includes the ridge waveguide, sets up a plurality of radiation gaps at ridge waveguide upper surface, the coaxial converter of ridge waveguide includes ridge waveguide cavity and SMA joint, the ridge waveguide is provided with the tongue with the lower bottom surface of ridge waveguide cavity, and the transversal of ridge waveguide and ridge waveguide cavity is the undercut, is provided with the metal stand in the tongue of ridge waveguide cavity, and the SMA joint wears to establish in the metal stand.
As a further improvement of the scheme, the SMA connector comprises a connecting rod, a round table arranged at the upper end of the connecting rod and a locating piece sleeved on the connecting rod, wherein the connecting rod is arranged in the metal table in a penetrating mode, and the round table is arranged in the ridge waveguide cavity.
As a further improvement of the scheme, the positioning sheet is provided with at least one first positioning hole, and the metal table is provided with a second positioning hole matched with the first positioning hole.
As a further improvement of the scheme, one end of the ridge waveguide cavity is closed, one end of the ridge waveguide cavity is open, a plurality of first mounting tables are arranged at the open end of the ridge waveguide cavity, and a second mounting table matched with the first mounting tables is arranged at one end of the ridge waveguide.
As a further improvement of the scheme, the widths of the radiation slits are the same, and the lengths of the radiation slits are different.
As a further improvement of the scheme, the radiation slits are respectively distributed in a left-right staggered mode along the central line of the upper surface of the ridge waveguide, and the distances of the offset central lines of the radiation slits are different.
The application has the beneficial effects that:
the application relates to a hidden feed ridge waveguide slot antenna, a plurality of radiation slots are arranged on a ridge waveguide, the ridge waveguide coaxial converter introduces the energy of a feeder line into a slot leaky ridge waveguide, the ridge waveguide coaxial converter is utilized to excite an electromagnetic field of the waveguide and make the electromagnetic field propagate in the ridge waveguide, and reasonable radiation slot layout is carried out on the ridge waveguide, so that the effects of high gain and low side lobe are achieved; the metal table is arranged in the ridge waveguide coaxial converter, and the SMA connector is hidden in the ridge waveguide coaxial converter, so that the effects of reasonably utilizing space and protecting the SMA connector are achieved, and the effect of reducing the size of the antenna is also achieved; the compact structure can be arranged on various carriers, is suitable for various occasions, is particularly suitable for a large phased array radar system, and is more beneficial to the debugging and maintenance of an antenna.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the application, but not all embodiments, and that a person skilled in the art can obtain other designs and drawings from these drawings without inventive effort:
FIG. 1 is a schematic diagram of a preferred embodiment of the present application;
FIG. 2 is a front view of a ridge waveguide according to a preferred embodiment of the present application;
FIG. 3 is a schematic view in semi-section along the AA direction in FIG. 2;
FIG. 4 is an exploded view of a ridge waveguide coaxial transducer according to a preferred embodiment of the present application;
FIG. 5 is a front view of a ridge waveguide coaxial converter according to a preferred embodiment of the present application;
FIG. 6 is a half cross-sectional view of a ridge waveguide cavity in accordance with a preferred embodiment of the present application;
FIG. 7 is a reflection coefficient diagram of a hidden feed ridge waveguide slot antenna according to a preferred embodiment of the present application;
fig. 8 is a radiation pattern of a hidden feed ridge waveguide slot antenna according to a preferred embodiment of the present application.
Detailed Description
The conception, specific structure, and technical effects produced by the present application will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present application. It is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present application based on the embodiments of the present application.
Referring to fig. 1 to 6, a hidden feed ridge waveguide slot antenna comprises a slot leaky ridge waveguide 1 and a ridge waveguide coaxial converter 2 which are connected with each other, wherein the slot leaky ridge waveguide 1 comprises a ridge waveguide 3 and a plurality of radiation slots 4 arranged on the upper surface of the ridge waveguide 3, the ridge waveguide coaxial converter 2 comprises a ridge waveguide cavity 5 and an SMA joint 6, a convex groove is arranged on the lower bottom surfaces of the ridge waveguide 3 and the ridge waveguide cavity 5, the cross sections of the ridge waveguide 3 and the ridge waveguide cavity 5 are inverted concave, a metal table 7 is arranged in the convex groove of the ridge waveguide cavity 5, and the SMA joint 6 is arranged in the metal table 7 in a penetrating manner.
The metal table 7 in the ridge waveguide coaxial converter 2 is used for installing the SMA connector 6, the convex groove of the ridge waveguide 3 is fully utilized by the arrangement of the metal table 7, the space is reasonably utilized, the effect of reducing the antenna size is achieved, part of the SMA connector 6 is hidden, the SMA connector 6 is well protected when being installed in the metal table 7, and the damage probability of the SMA connector is reduced. The compact structure can be arranged on various carriers, is suitable for various occasions, is particularly suitable for a large phased array radar system, and is more beneficial to the debugging and maintenance of an antenna
The SMA connector 6 comprises a connecting rod 61 and a round table 62 arranged at the upper end of the connecting rod 61, a locating piece 63 sleeved on the connecting rod 61, the connecting rod 61 is arranged in the metal table 7 in a penetrating mode, and the round table 62 is arranged in the ridge waveguide cavity 5. The circular truncated cone 62 is a key for coupling electromagnetic energy, the coaxial state and the matching state of the circular truncated cone 62 and the ridge waveguide 3 are affected by the size of the circular truncated cone 62 and the placement position in the ridge waveguide cavity 5, the SMA joint 6 is limited by the metal table 7, the position of the circular truncated cone 62 can be ensured to be determined, and the antenna achieves the effect of high gain and low sidelobe. The positioning plate 63 is provided with at least one first positioning hole 64, and the metal table 7 is provided with a second positioning hole 8 matched with the first positioning hole 64.
One end of the ridge waveguide cavity 5 is closed, one end of the ridge waveguide cavity 5 is opened, a plurality of first mounting tables 9 are arranged at the opening end of the ridge waveguide cavity 5, and a second mounting table 10 matched with the first mounting tables 9 is arranged at one end of the ridge waveguide 3 and used for fixing the ridge waveguide cavity 5 and the ridge waveguide 3.
The widths of the radiation slits 4 are the same, the lengths of the radiation slits 4 are different, the radiation slits 4 are distributed in a left-right staggered mode along the central line of the upper surface of the ridge waveguide 3, and the distances of the offset central lines of the radiation slits 4 are different. The radiation slits 4 in this embodiment are each 4mm wide and 50mm to 60mm long, and have a vertical distance from the center line of less than 3mm.
Electromagnetic waves in a seamless ridge waveguide will be TE 10 The mode propagates inside it and there is a uniformly varying surface current on the metal wall of the ridge waveguide 3. The radiation slits 4 cut along two sides of the center line will cut and destroy the surface current which is originally uniformly changed, so that electromagnetic energy inside the ridge waveguide 3 leaks out, each radiation slit 4 on the ridge waveguide 3 has a difference, so that the energy leaked out from each radiation slit 4 is different, the radiation slits 4 in the embodiment are weighted according to a certain taylor distribution, and finally the antenna has the radiation characteristics of high gain and low side lobe.
Referring to experimental data of fig. 7 and 8, a waveguide narrow-side slotted antenna array in the preferred embodiment is modeled and simulated by ANSYS HFSS software, the simulated return loss is shown in fig. 7, a-10 dB reference line is marked in the figure, and the graph shows that the antenna can work on frequency bands of about 150MHz with 2.85GHz as a center frequency point. Fig. 8 shows the radiation pattern of the antenna at 2.85GHz with a main beam side lobe level of-31.66 dB and a cross polarization level of less than-54.4 dB in the 3dB beam range.
The data show that the structure realizes the characteristics of low side lobe characteristic, low cross polarization characteristic, low loss and small size of the antenna, can be applied to various occasions, and is particularly suitable for a large phased array radar system.
While the preferred embodiments of the present application have been illustrated and described, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (5)
1. A hidden feed ridge waveguide slot antenna is characterized in that: including interconnect's gap leaky wave ridge waveguide (1) and coaxial converter of ridge waveguide (2), gap leaky wave ridge waveguide (1) include ridge waveguide (3), set up a plurality of radiation gaps (4) on ridge waveguide (3) upper surface, coaxial converter of ridge waveguide (2) include ridge waveguide cavity (5) and SMA joint (6), the lower bottom surface of ridge waveguide (3) and ridge waveguide cavity (5) is provided with the tongue, and ridge waveguide (3) are the undercut with the transversal of ridge waveguide cavity (5), are provided with metal platform (7) in the tongue of ridge waveguide cavity (5), SMA joint (6) include connecting rod (61), set up round platform (62) in connecting rod (61) upper end, and locating piece (63) on connecting rod (61) are established to the cover, connecting rod (61) wear to establish in metal platform (7), round platform (62) are established in ridge waveguide cavity (5).
2. The hidden feed ridge waveguide slot antenna of claim 1, wherein: the positioning sheet (63) is provided with at least one first positioning hole (64), and the metal table (7) is provided with a second positioning hole (8) matched with the first positioning hole (64).
3. The hidden feed ridge waveguide slot antenna of claim 1, wherein: one end of the ridge waveguide cavity (5) is closed, one end of the ridge waveguide cavity is open, a plurality of first mounting tables (9) are arranged at the open end of the ridge waveguide cavity (5), and a second mounting table (10) matched with the first mounting tables (9) is arranged at one end of the ridge waveguide (3).
4. The hidden feed ridge waveguide slot antenna of claim 1, wherein: the widths of the radiation slits (4) are the same, and the lengths of the radiation slits (4) are different.
5. The hidden feed ridge waveguide slot antenna of claim 1, wherein: the radiation slits (4) are distributed in a left-right staggered mode along the central line of the upper surface of the ridge waveguide (3), and the distances of the offset central lines of the radiation slits (4) are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400071.0A CN108258427B (en) | 2017-12-22 | 2017-12-22 | Hidden feed ridge waveguide slot antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400071.0A CN108258427B (en) | 2017-12-22 | 2017-12-22 | Hidden feed ridge waveguide slot antenna |
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| CN108258427A CN108258427A (en) | 2018-07-06 |
| CN108258427B true CN108258427B (en) | 2023-09-15 |
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| CN201711400071.0A Active CN108258427B (en) | 2017-12-22 | 2017-12-22 | Hidden feed ridge waveguide slot antenna |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109149126A (en) * | 2018-08-30 | 2019-01-04 | 成都赛康宇通科技有限公司 | Phased array antenna gap waveguide layer preparation process |
| CN109672026B (en) * | 2018-12-11 | 2021-06-04 | 上海无线电设备研究所 | Modularized integrated broadband millimeter wave waveguide slot antenna array |
| CN110753025B (en) * | 2019-01-07 | 2020-07-24 | 金润方舟科技股份有限公司 | Big data security access control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000979A (en) * | 2006-12-30 | 2007-07-18 | 中国电子科技集团公司第三十八研究所 | Broadband single ridge waveguide broadside longitudinal seam standing-wave antenna |
| CN101609916A (en) * | 2009-06-18 | 2009-12-23 | 电子科技大学 | A kind of 18-40GHz double balanced mixer of star structure |
| CN102324624A (en) * | 2011-06-09 | 2012-01-18 | 中国工程物理研究院电子工程研究所 | A kind of ultra broadband Waveguide slot array element |
| JP2017200001A (en) * | 2016-04-26 | 2017-11-02 | 学校法人鶴学園 | Waveguide slot antenna |
| CN207638005U (en) * | 2017-12-22 | 2018-07-20 | 珠海纳睿达科技有限公司 | A kind of concealed feed ridge waveguide slot antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9614265B2 (en) * | 2013-08-02 | 2017-04-04 | Electronics And Telecommunications Research Institute | Variable high frequency filter device and assembly |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000979A (en) * | 2006-12-30 | 2007-07-18 | 中国电子科技集团公司第三十八研究所 | Broadband single ridge waveguide broadside longitudinal seam standing-wave antenna |
| CN101609916A (en) * | 2009-06-18 | 2009-12-23 | 电子科技大学 | A kind of 18-40GHz double balanced mixer of star structure |
| CN102324624A (en) * | 2011-06-09 | 2012-01-18 | 中国工程物理研究院电子工程研究所 | A kind of ultra broadband Waveguide slot array element |
| JP2017200001A (en) * | 2016-04-26 | 2017-11-02 | 学校法人鶴学園 | Waveguide slot antenna |
| CN207638005U (en) * | 2017-12-22 | 2018-07-20 | 珠海纳睿达科技有限公司 | A kind of concealed feed ridge waveguide slot antenna |
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| CN108258427A (en) | 2018-07-06 |
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Address after: No.2 Gangle Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080 Applicant after: Guangdong Narui Radar Technology Co.,Ltd. Address before: No.2 Gangle Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080 Applicant before: NARUIDA TECHNOLOGY Ltd. |
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