CN101997173A - Wideband microwave antenna feed - Google Patents
Wideband microwave antenna feed Download PDFInfo
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- CN101997173A CN101997173A CN2010105467924A CN201010546792A CN101997173A CN 101997173 A CN101997173 A CN 101997173A CN 2010105467924 A CN2010105467924 A CN 2010105467924A CN 201010546792 A CN201010546792 A CN 201010546792A CN 101997173 A CN101997173 A CN 101997173A
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- medium block
- microwave antenna
- antenna feed
- circular waveguide
- metal
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Abstract
The invention discloses a wideband microwave antenna feed comprising a metal subreflecting surface, a medium block and a circular waveguide pipe, wherein the metal subreflecting surface is connected with the circular waveguide pipe by the medium block; the metal subreflecting surface, the medium block and the circular waveguide pipe are symmetrical corresponding to the same axial line, the top of the medium block is provided with a coaxial annular groove and a conical groove, and the corresponding position of the bottom of the metal subreflecting surface and the conical groove is provided with a matching taper. Because the structures of the medium block and the metal subreflecting surface are moulded, the upper part of the medium block is provided with the conical groove and at least one annular groove, and the bottom pf the metal subreflecting surface is provided with the matching taper corresponding to the conical groove in order to increase a variable factor of the feed; when passing through a circular step, electromagnetic waves can enter the medium block according to a certain mode proportion, then, the matching taper, the conical groove and the annular groove are mutually coordinated to regulate the amplitude and the phase of the electromagnetic waves, the effective bandwidth of the microwave antenna achieves about 20 percent, and the wideband microwave antenna feed has better popularizing and using values.
Description
Technical field
The present invention relates to the microwave antenna technical field, especially relate to a kind of broadband microwave antenna feed.
Background technology
Microwave antenna is the important component part of microwave relay communication system, wide band microwave antenna can satisfy the demand of engineering better, feed is the core of whole microwave antenna, designs the feed of a kind of bandwidth, superior performance, reliable in structure and is expected by people always.
As shown in Figure 5, the feed of conventional feedback type microwave antenna generally is made up of circular waveguide tube, medium block and metal subreflector, the microwave antenna design generally requires standing-wave ratio less than 1.3, antenna efficiency is greater than 60%, and conventional feedback type microwave antenna can only meet the demands in bandwidth is 10% scope.
Therefore, at the deficiency of the above conventional antenna feed, be necessary its performance is made improvement.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of broadband microwave antenna feed.
The technical scheme that the present invention is adopted for its technical problem of solution is:
A kind of broadband microwave antenna feed, comprise metal subreflector, medium block and circular waveguide tube, described metal subreflector links to each other with circular waveguide tube by medium block, the three is about same axis symmetry, it is characterized in that: described medium block top is provided with a coaxial annular groove and a cone tank, and described metal subreflector bottom is provided with a coupling awl with the cone tank correspondence position.
As the further improvement of such scheme, described coupling awl is divided into four sections with profile broken line after its longitudinal section is cut mutually, and about the axis symmetry.
Further, described metal subreflector and medium block are closely fixing by moulding.
Further, the quantity of set coaxial annular groove is at least 1 road on the described medium block.
Further, the bottom of described medium block is provided with one deck step cutting pattern at least.
Further, described step cutting pattern places among the circular waveguide tube inwall, and first floor step cutting pattern closely contacts with the circular waveguide tube inwall.
In addition, described coupling awl, cannelure and step cutting pattern are about the axis symmetry.
The invention has the beneficial effects as follows: the present invention is as a kind of broadband microwave antenna feed, because the structure of medium block and metal subreflector has been carried out excipient, be provided with cone tank on the top of medium block with cannelure at least, metal subreflector bottom is provided with corresponding coupling awl of cone tank and medium block bottom and is provided with one deck step cutting pattern at least, when electromagnetic wave passes through step cutting pattern, can enter medium block according to certain pattern ratio, coupling is bored then, cone tank and cannelure are coordinated to regulate electromagnetic amplitude and phase place mutually, so that the effective bandwidth of microwave antenna reaches about 20%; In addition, that the present invention also has is simple and reasonable, be easy to that assembling is used and characteristics such as superior electrical property, therefore has a extensive future.
Description of drawings
The present invention will be further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is a feed structure schematic diagram of the present invention;
Fig. 2 is the injection structure schematic diagram of metal subreflector of the present invention and medium block;
Fig. 3 is the local structure for amplifying schematic diagram of moulding of the present invention;
Fig. 4 is a metal subreflector structural representation of the present invention;
Fig. 5 is conventional feed structure schematic diagram;
The microwave antenna structure schematic diagram that Fig. 6 is made up of the present invention;
Fig. 7 is by microwave antenna return loss measured drawing of the present invention;
Fig. 8 is by microwave antenna actual measurement far-field pattern of the present invention.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of broadband microwave antenna feed, comprise metal subreflector 1, medium block 2 and circular waveguide tube 3, described metal subreflector 1 links to each other with circular waveguide tube 3 by medium block 2, the three is about same axis symmetry, described medium block 2 tops are provided with a coaxial annular groove 21 and a cone tank 22, and described metal subreflector 1 bottom and cone tank 22 correspondence positions are provided with a coupling awl 11.
As the preferred embodiment of the present invention, described coupling awl 11 is divided into four sections with profile broken line after its longitudinal section is cut mutually, and about the axis symmetry.
Described metal subreflector 1 and medium block 2 are closely fixing by moulding 4, and the quantity of set coaxial annular groove 21 is at least 1 road on the described medium block 2, and the bottom of medium block 2 is provided with one deck step cutting pattern 23 at least.
Described step cutting pattern 23 places among circular waveguide tube 3 inwalls, and first floor step cutting pattern 23 closely contacts with circular waveguide tube 3 inwalls, and described coupling awl 11, cannelure 21 and step cutting pattern 23 are about the axis symmetry.
As Fig. 1 ~ shown in Figure 4, medium block 2 bottoms of the specific embodiment of the invention are provided with 4 step cutting patterns 23, medium block 2 tops are provided with three cannelures 21 and cone tank 22, annular steps 23 is the central shaft symmetry, the external diameter of first step is with the internal diameter unanimity of circular waveguide tube 3, annular steps 23 diameters reduce successively, three cannelure 21 diameters increase successively, interior ring annular groove 21 diameters are greater than cone tank 22, medium block 2 conical surfaces divide four sections, and four sections relative altitude and diameter are coordinated metal subreflector 1 and decided.
Be provided with cone tank with cannelure at least by top at medium block, metal subreflector bottom is provided with corresponding coupling awl of cone tank and medium block bottom and is provided with one deck step cutting pattern at least, when electromagnetic wave passes through step cutting pattern, can enter medium block according to certain pattern ratio, mate awl, cone tank and cannelure then and coordinate mutually to regulate electromagnetic amplitude and phase place, so that the effective bandwidth of microwave antenna reaches about 20%.
By above description, present embodiment provides a kind of broadband, consistency height, the design of the microwave antenna feed of dependable performance.
Fig. 6 is the microwave antenna overall structure schematic diagram that obtains after feed of the present invention and reflector and the assembling of other assemblies.
By 7GHz, 0.6M wideband microwave antenna are surveyed, the return loss of feed as shown in Figure 7, radiation pattern satisfies the envelope requirement of ETSI Class3 standard as shown in Figure 8.
By above description, present embodiment provides a kind of broadband, consistency height, the design of the microwave antenna feed of dependable performance.
Of particular note, cannelure regulates that the return loss effect is obvious, and protection range with the concrete quantity of groove, do not exceed by the degree of depth and width etc., makes medium block and subreflector tight by moulding, also can be fixed on subreflector on the medium block with glue.The foregoing description only is a better embodiment; but execution mode not merely is restricted to the described embodiments; other any do not deviate from change that this programme innovative point done, substitutes, combination or simplify, and all should be considered as the substitute mode of equivalence, is included within the protection range.
Claims (7)
1. broadband microwave antenna feed, comprise metal subreflector (1), medium block (2) and circular waveguide tube (3), described metal subreflector (1) links to each other with circular waveguide tube (3) by medium block (2), the three is about same axis symmetry, it is characterized in that: described medium block (2) top is provided with a coaxial annular groove (21) and a cone tank (22), and described metal subreflector (1) bottom is provided with a coupling awl (11) with cone tank (22) correspondence position.
2. a kind of broadband microwave antenna feed according to claim 1 is characterized in that: the profile broken line after described coupling is bored (11) and its longitudinal section is cut mutually is divided into four sections, and about the axis symmetry.
3. a kind of broadband microwave antenna feed according to claim 1 is characterized in that: described metal subreflector (1) and medium block (2) are closely fixing by moulding (4).
4. a kind of broadband microwave antenna feed according to claim 1 is characterized in that: the quantity that described medium block (2) is gone up set coaxial annular groove (21) is at least 1 road.
5. according to claim 1,3 or 4 described a kind of broadband microwave antenna feeds, it is characterized in that: the bottom of described medium block (2) is provided with one deck step cutting pattern (23) at least.
6. a kind of broadband microwave antenna feed according to claim 5 is characterized in that: described step cutting pattern (23) places among circular waveguide tube (3) inwall, and first floor step cutting pattern (23) closely contacts with circular waveguide tube (3) inwall.
7. a kind of broadband microwave antenna feed according to claim 5 is characterized in that: described coupling awl (11), cannelure (21) and step cutting pattern (23) are about the axis symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105467924A CN101997173A (en) | 2010-11-16 | 2010-11-16 | Wideband microwave antenna feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105467924A CN101997173A (en) | 2010-11-16 | 2010-11-16 | Wideband microwave antenna feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101997173A true CN101997173A (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105467924A Pending CN101997173A (en) | 2010-11-16 | 2010-11-16 | Wideband microwave antenna feed |
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| CN (1) | CN101997173A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427167A (en) * | 2011-07-29 | 2012-04-25 | 中国兵器工业第二○六研究所 | Broadband E surface omni-directional antenna based on circular waveguide TE01 mode |
| WO2014127422A1 (en) * | 2013-02-21 | 2014-08-28 | Bae Systems Australia Ltd | High power - low loss antenna system and method |
| CN106384874A (en) * | 2016-11-11 | 2017-02-08 | 广东盛路通信科技股份有限公司 | Feed source apparatus for fan antenna |
| CN106707729A (en) * | 2017-01-11 | 2017-05-24 | 广东小天才科技有限公司 | Intelligent watch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316798A (en) * | 2000-02-03 | 2001-10-10 | 阿尔卑斯电气株式会社 | Primary transmitting apparatus suitable for miniaturized and preventing cross polarized wave characteristic wosen |
| CN1483231A (en) * | 2000-12-27 | 2004-03-17 | ����ͨѶ�ɷ�����˾ | Cassegrain-type feed for an antenna |
-
2010
- 2010-11-16 CN CN2010105467924A patent/CN101997173A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316798A (en) * | 2000-02-03 | 2001-10-10 | 阿尔卑斯电气株式会社 | Primary transmitting apparatus suitable for miniaturized and preventing cross polarized wave characteristic wosen |
| CN1483231A (en) * | 2000-12-27 | 2004-03-17 | ����ͨѶ�ɷ�����˾ | Cassegrain-type feed for an antenna |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427167A (en) * | 2011-07-29 | 2012-04-25 | 中国兵器工业第二○六研究所 | Broadband E surface omni-directional antenna based on circular waveguide TE01 mode |
| WO2014127422A1 (en) * | 2013-02-21 | 2014-08-28 | Bae Systems Australia Ltd | High power - low loss antenna system and method |
| AU2014218516B2 (en) * | 2013-02-21 | 2017-11-16 | Bae Systems Australia Ltd | High power - low loss antenna system and method |
| CN106384874A (en) * | 2016-11-11 | 2017-02-08 | 广东盛路通信科技股份有限公司 | Feed source apparatus for fan antenna |
| CN106707729A (en) * | 2017-01-11 | 2017-05-24 | 广东小天才科技有限公司 | Intelligent watch |
| CN106707729B (en) * | 2017-01-11 | 2022-06-17 | 广东小天才科技有限公司 | Intelligent watch |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |