CN103337695B - All-directional knife-shaped slot antenna - Google Patents
All-directional knife-shaped slot antenna Download PDFInfo
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- CN103337695B CN103337695B CN201310255472.7A CN201310255472A CN103337695B CN 103337695 B CN103337695 B CN 103337695B CN 201310255472 A CN201310255472 A CN 201310255472A CN 103337695 B CN103337695 B CN 103337695B
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Abstract
The invention relates to a novel all-directional knife-shaped slot antenna which comprises an antenna body (7), an adjusting rod (1), an adjusting screw, an SMA (shape memory alloy) connector (4) and a feedback rod (11), wherein an L-shaped slot (9) is formed in the antenna body (7); the adjusting rod (1) is transversely arranged in the antenna body (7); one end of the adjusting rod (1) penetrates through the L-shaped slot (9); the other end of the adjusting rod (1) is connected with the adjusting screw; the outer surface of the adjusting rod (1) is coated with a sleeve (3); a groove is formed in the bottom of the antenna body (7); an SMA connector flange plate is arranged in the groove; the middle of the SMA connector (4) is fixed in the center of the SMA connector flange plate; the top end of the SMA connector (4) is connected with the feedback rod (11); and antenna fixing holes are formed in the two sides of the antenna body (7). The novel all-directional knife-shaped slot antenna has the advantages of attractive appearance, small size, convenience for adjusting the resonant frequency, convenience for dismounting and long service life.
Description
Technical field
The present invention relates to a kind of antenna, particularly a kind of omnidirectional knife-edge slot antenna.
Background technology
Blade antenna is mainly used on the flying body such as aircraft and guided missile, the antenna on ground, and the earth has a great impact its electrical property.Aircraft on high middle flight seems to have departed from the impact of the earth on it.But, airborne antenna also have one " ", that is exactly airframe itself.Concerning antenna, the metal skin of aircraft be exactly airborne antenna " ".Aircraft surfaces shape, size or antenna mounting locations are different, are also different to the influence degree of the electrical property of airborne antenna.Airborne antenna is different from the antenna of other applications in many aspects, it must withstand the effect of the mechanical force of Static and dynamic, and in many cases, the main performance of size and dimension to antenna of aircraft has a great impact, and this just requires that antenna controllability is strong, can not because of the difference of the size of aircraft, shape or metal skin, and antenna performance is impacted, gather in narrow space multiple antenna, and interference is each other comparatively serious, affects communication quality.
Early stage high-frequency airborne antenna is wire antenna, and it has the birth defects being difficult to overcome.Wire antenna is often erected between vertical fin and nosing, has larger span.In flight course, under the impact of air-flow and engine luggine, very easily produce shake, the electric capacity between it and metal skin is changed every now and then, and thus the parameter of antenna changes frequently, has influence on the impedance matching between antenna and system.In succession there is the Airborne High-frequency antenna form such as probe antenna, hat antenna afterwards, swimming suit replaces wire antenna, but this probe antenna can form an obviously protrusion in appearance at aircraft, the similar lightning rod of shape, a huge challenge for lightning protection like this, and hat antenna to there is difficulty of processing large, the shortcoming that cost is high, and the resonance frequency of antenna regulates difficulty, makes the application of this antenna be limited to.The overall dimension of wire antenna and hat antenna is comparatively large in addition, and hat antenna adopts the mode of welding to be assemblied on metal skin mostly, and when aircraft high-speed flight, its solder joint easily melts, and high-low temperature resistant ability is not good.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of good looking appearance and size is little, omnidirectional's knife-edge slot antenna of being convenient to regulate the resonance frequency of antenna, easy accessibility and long service life.
Object of the present invention is achieved through the following technical solutions: a kind of omnidirectional knife-edge slot antenna, it comprises antenna body, adjusting rod, adjustment screw, sub-miniature A connector and feeder pillar, antenna body offers L shape gap, antenna body inner transverse is provided with adjusting rod, one end of adjusting rod is through L shape gap, the other end of adjusting rod is connected with adjustment screw, the appearance of adjusting rod is coated with sleeve, the bottom of antenna body offers groove, sub-miniature A connector ring flange is provided with in groove, the middle part of sub-miniature A connector is fixed on the center of sub-miniature A connector ring flange, the top of sub-miniature A connector is passed sub-miniature A connector ring flange and is connected with feeder pillar, the both sides of antenna body offer antenna fixing hole.
The external diameter of described adjustment screw is greater than the external diameter of adjusting rod.
The both sides of described sub-miniature A connector ring flange offer ring flange fixing hole, and sub-miniature A connector ring flange is locked in the bottom of antenna body through ring flange fixing hole by screw.
The top of described antenna body is provided with adjusting rod fixing hole straight down.
Described antenna body is provided with feeder pillar fixing hole, feeder pillar fixing hole and feeder pillar suitable.
Described antenna fixing hole is counterbore.
The degree of depth of described groove is not less than the degree of depth of sub-miniature A connector ring flange.
The present invention has the following advantages:
1, each connecting hole of antenna is counter bore structure, lock part is hidden in inner antenna, while ensureing the outward appearance of antenna, L shape gap is set in antenna body, the electrical length of antenna can be increased under reduced size, its profile overall length scope is 70mm ~ 85mm, width range is 30mm ~ 40mm, and thickness range is 8mm ~ 12mm, significantly reduces compared to the size of the conventional aerial of same frequency, size of the present invention is little, and its gain also can match in excellence or beauty with conventional aerial.
2, one end of adjusting rod is provided with adjustment screw, the resonance frequency of antenna can be regulated easily, after antenna regulates, by the screw in adjusting rod fixing hole, adjusting rod is fixed.
3, assembling of the present invention is Automatic manual transmission, does not need, through special process process, just antenna stabilization to be fixed on the skin-surface of aircraft.
4, this antenna does not need when assembling by the method for welding, does not produce solder joint, the problem causing solder joint to melt when avoiding problems generation higher temperature large because of flying object flying speed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is that the present invention looks up structural representation when sub-miniature A connector is housed;
Fig. 4 is the left TV structure schematic diagram of Fig. 1;
Fig. 5 is that the present invention looks up structural representation when being unkitted sub-miniature A connector;
In figure: 1-adjusting rod, 2-feeder pillar fixing hole, 3-sleeve, 4-SMA joint, 5-ring flange fixing hole, 6-adjusting rod fixing hole, 7-antenna body, 8-SMA joint flange dish, 9-L shape gap, 10-antenna fixing hole, 11-feeder pillar, 12-adjustment screw, 13-groove.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, but protection scope of the present invention is not limited to the following stated.
As shown in Figures 1 to 4, a kind of omnidirectional knife-edge slot antenna, it comprises antenna body 7, adjusting rod 1, adjustment screw 12, sub-miniature A connector 4 and feeder pillar 11, antenna body 7 offers L shape gap 9, antenna body 7 inner transverse is provided with adjusting rod 1, one end of adjusting rod 1 is through L shape gap 9, the other end of adjusting rod 1 is connected with adjustment screw 12, the appearance of adjusting rod 1 is coated with sleeve 3, the bottom of antenna body 7 offers groove 13, sub-miniature A connector ring flange 8 is provided with in groove 13, the degree of depth of groove 13 is not less than the degree of depth of sub-miniature A connector ring flange 8, the middle part of sub-miniature A connector 4 is fixed on the center of sub-miniature A connector ring flange 8, the top of sub-miniature A connector 4 is passed sub-miniature A connector ring flange 8 and is connected with feeder pillar 11, the both sides of antenna body 7 offer antenna fixing hole 10, antenna body 7 are provided with feeder pillar fixing hole 2, and feeder pillar fixing hole 2 is suitable with feeder pillar 11.
External diameter as Fig. 1 and Fig. 4 adjustment screw 12 is greater than the external diameter of adjusting rod 1.
As shown in Figure 3, the both sides of sub-miniature A connector ring flange 8 offer ring flange fixing hole 5, and sub-miniature A connector ring flange 8 is locked in the bottom of antenna body 7 through ring flange fixing hole 5 by screw.
As shown in Figure 2, the top of antenna body 7 is provided with adjusting rod fixing hole 6 straight down, and antenna fixing hole 10 is counterbore.
The size of antenna is relevant with wavelength, generally, the size of antenna is about the length of half-wavelength, outer image knife-edge of the present invention, the profile overall length scope of antenna is 70mm ~ 85mm, width range is 30mm ~ 40mm, the length of the conventional aerial of same frequency is more than 100mm, wide more than 100mm, in the antenna of same frequency, size of the present invention is less, gain does not also reduce, the feeder pillar 11 being arranged at antenna body 7 inside is connected with sub-miniature A connector, sub-miniature A connector is fixed on the bottom of antenna body 7 by sub-miniature A connector ring flange 8, and it is more firm in order to make antenna and flying body fix, groove 13 is offered again bottom antenna body 7, sub-miniature A connector ring flange 8 is sunk to groove 13 inner, both ensure that the attractive in appearance of antenna, strengthen again the ability that its anti-forced speed impacts.
Claims (7)
1. omnidirectional's knife-edge slot antenna, it is characterized in that: it comprises antenna body (7), adjusting rod (1), adjustment screw (12), sub-miniature A connector (4) and feeder pillar (11), antenna body (7) offers L shape gap (9), antenna body (7) inner transverse is provided with adjusting rod (1), one end of adjusting rod (1) is through L shape gap (9), the other end of adjusting rod (1) is connected with adjustment screw (12), the appearance of adjusting rod (1) is coated with sleeve (3), the bottom of antenna body (7) offers groove (13), sub-miniature A connector ring flange (8) is provided with in groove (13), the middle part of sub-miniature A connector (4) is fixed on the center of sub-miniature A connector ring flange (8), the top of sub-miniature A connector (4) is passed sub-miniature A connector ring flange (8) and is connected with feeder pillar (11), the both sides of antenna body (7) offer antenna fixing hole (10).
2. a kind of omnidirectional according to claim 1 knife-edge slot antenna, is characterized in that: the external diameter of described adjustment screw (12) is greater than the external diameter of adjusting rod (1).
3. a kind of omnidirectional according to claim 1 knife-edge slot antenna, it is characterized in that: the both sides of described sub-miniature A connector ring flange (8) offer ring flange fixing hole (5), sub-miniature A connector ring flange (8) is locked in the bottom of antenna body (7) through ring flange fixing hole (5) by screw.
4. a kind of omnidirectional according to claim 1 knife-edge slot antenna, is characterized in that: the top of described antenna body (7) is provided with adjusting rod fixing hole (6) straight down.
5. a kind of omnidirectional according to claim 1 knife-edge slot antenna, is characterized in that: described antenna body (7) is provided with feeder pillar fixing hole (2), and feeder pillar fixing hole (2) is suitable with feeder pillar (11).
6. a kind of omnidirectional according to claim 1 knife-edge slot antenna, is characterized in that: described antenna fixing hole (10) is counterbore.
7. a kind of omnidirectional according to claim 1 knife-edge slot antenna, is characterized in that: the degree of depth of described groove (13) is not less than the degree of depth of sub-miniature A connector ring flange (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255472.7A CN103337695B (en) | 2013-06-25 | 2013-06-25 | All-directional knife-shaped slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255472.7A CN103337695B (en) | 2013-06-25 | 2013-06-25 | All-directional knife-shaped slot antenna |
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| Publication Number | Publication Date |
|---|---|
| CN103337695A CN103337695A (en) | 2013-10-02 |
| CN103337695B true CN103337695B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310255472.7A Active CN103337695B (en) | 2013-06-25 | 2013-06-25 | All-directional knife-shaped slot antenna |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190379B (en) * | 2019-05-05 | 2021-09-21 | 中国商用飞机有限责任公司 | Airborne high-frequency antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5521610A (en) * | 1993-09-17 | 1996-05-28 | Trimble Navigation Limited | Curved dipole antenna with center-post amplifier |
| CN102487161A (en) * | 2010-12-03 | 2012-06-06 | 财团法人工业技术研究院 | Antenna structure device and multi-beam antenna array system formed by same |
| CN202363578U (en) * | 2011-12-07 | 2012-08-01 | 宝鸡烽火诺信科技有限公司 | Vehicle-mounted blade antenna |
| CN203300793U (en) * | 2013-06-25 | 2013-11-20 | 成都创亿嘉科技有限公司 | Novel omnidirectional knife-shaped slot antenna |
-
2013
- 2013-06-25 CN CN201310255472.7A patent/CN103337695B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5521610A (en) * | 1993-09-17 | 1996-05-28 | Trimble Navigation Limited | Curved dipole antenna with center-post amplifier |
| CN102487161A (en) * | 2010-12-03 | 2012-06-06 | 财团法人工业技术研究院 | Antenna structure device and multi-beam antenna array system formed by same |
| CN202363578U (en) * | 2011-12-07 | 2012-08-01 | 宝鸡烽火诺信科技有限公司 | Vehicle-mounted blade antenna |
| CN203300793U (en) * | 2013-06-25 | 2013-11-20 | 成都创亿嘉科技有限公司 | Novel omnidirectional knife-shaped slot antenna |
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| CN103337695A (en) | 2013-10-02 |
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