CN103337695A - Novel all-directional knife-shaped slot antenna - Google Patents
Novel all-directional knife-shaped slot antenna Download PDFInfo
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- CN103337695A CN103337695A CN2013102554727A CN201310255472A CN103337695A CN 103337695 A CN103337695 A CN 103337695A CN 2013102554727 A CN2013102554727 A CN 2013102554727A CN 201310255472 A CN201310255472 A CN 201310255472A CN 103337695 A CN103337695 A CN 103337695A
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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 novel omnidirectional's knife-edge slot antenna.
Background technology
Blade antenna is mainly used on the flying bodies such as aircraft and guided missile, the antenna of using on the ground, and the earth has very big influence to its electrical property.As if aircraft middle flight on high broken away from the influence of the earth to 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 installation site difference also are 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 hold out against the effect of static and dynamic mechanical force, and in many cases, the size and dimension of aircraft has very big influence to the main performance of antenna, and this just requires the antenna controllability strong, can be because of the difference of size, shape or the metal skin of aircraft, and antenna performance is impacted, densely covered multiple antenna in the narrow space, interference each other is comparatively serious, influences communication quality.
Early stage high-frequency airborne antenna is wire antenna, and it has the birth defects that are difficult to overcome.Wire antenna often is erected between vertical fin and the nosing, and bigger span is arranged.In the flight course, under the influence of air-flow and engine luggine, very easily produce shake, make that the electric capacity between it and metal skin changes every now and then, thereby the parameter of antenna changes frequently, have influence on the impedance matching between antenna and system.Airborne high frequency antenna forms such as probe antenna, hat antenna had appearred afterwards in succession, swimming suit replaces wire antenna, but this probe antenna can form a very significantly protrusion in appearance at aircraft, the similar lightning rod of shape, protection is a great challenge for lightning like this, and the hat antenna exists difficulty of processing big, the shortcoming that cost is high, and the resonance frequency of antenna adjusting difficulty, make that the application of this antenna is limited to.The overall dimension of wire antenna and hat antenna is bigger in addition, and the hat antenna adopts the mode of welding to be assemblied on the metal skin mostly, and when the aircraft high-speed flight, its solder joint easily melts, and the high-low temperature resistant ability is not good.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide that a kind of good looking appearance and size are little, novel omnidirectional's knife-edge slot antenna of resonance frequency, easy accessibility and the long service life of being convenient to regulate antenna.
Purpose of the present invention is achieved through the following technical solutions: a kind of novel omnidirectional's knife-edge slot antenna, it comprises antenna body, adjusting rod, adjustment screw, sub-miniature A connector and feeder pillar, offer L shaped slit on the antenna body, the antenna body inner transverse is provided with adjusting rod, one end of adjusting rod passes L shaped slit, 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, be provided with the sub-miniature A connector ring flange in the groove, the middle part of sub-miniature A connector is fixed on the center of sub-miniature A connector ring flange, and the top of sub-miniature A connector is passed the sub-miniature A connector ring flange and linked to each other with feeder pillar; The both sides of antenna body offer the 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 the ring flange fixing hole, and the sub-miniature A connector ring flange passes the bottom that the ring flange fixing hole is locked in antenna body by screw.
The top of described antenna body is provided with adjusting rod fixing hole straight down.
Described antenna body is provided with the feeder pillar fixing hole, and feeder pillar fixing hole and feeder pillar are 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, the lock part is hidden in antenna inside, when guaranteeing the outward appearance of antenna, L shaped slit is set in antenna body, can under reduced size, increases the electrical length of antenna, its profile length overall scope is 70mm～85mm, width range is 30mm～40mm, and thickness range is 8mm～12mm, reduces significantly than the size of the conventional antenna of same frequency, size of the present invention is little, and its gain also can match in excellence or beauty with conventional antenna.
2, the end at adjusting rod is provided with adjustment screw, can regulate the resonance frequency of antenna easily, after antenna regulates, by the screw in the adjusting rod fixing hole adjusting rod is fixed.
3, assembling of the present invention is machinery assembling, need not handle through special process, just can with antenna stabilization be fixed on the skin-surface of aircraft.
4, this antenna need not produce solder joint with the method for welding in when assembling, and this causes the problem of solder joint fusing when having been avoided because of the big generation higher temperature of flying object flying speed.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
When being equipped with sub-miniature A connector for the present invention, Fig. 3 looks up structural representation;
Fig. 4 is the left TV structure schematic diagram of Fig. 1;
When being unkitted sub-miniature A connector for the present invention, Fig. 5 looks up structural representation;
Among the 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 slit, 10-antenna fixing hole, 11-feeder pillar, 12-adjustment screw, 13-groove.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following stated.
As shown in Figures 1 to 4, a kind of novel omnidirectional's knife-edge slot antenna, it comprises antenna body 7, adjusting rod 1, adjustment screw 12, sub-miniature A connector 4 and feeder pillar 11, offer L shaped slit 9 on the antenna body 7, antenna body 7 inner transverse are provided with adjusting rod 1, one end of adjusting rod 1 passes L shaped slit 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, be provided with sub-miniature A connector ring flange 8 in the 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, and the top of sub-miniature A connector 4 is passed sub-miniature A connector ring flange 8 and linked to each other with feeder pillar 11; The both sides of antenna body 7 offer antenna fixing hole 10, and antenna body 7 is provided with feeder pillar fixing hole 2, and feeder pillar fixing hole 2 is suitable with feeder pillar 11.
As the external diameter of Fig. 1 and Fig. 4 adjustment screw 12 external diameter greater than 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 passes the bottom that ring flange fixing hole 5 is locked in antenna body 7 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 speaking, the size of antenna is about the length of half-wavelength, outer image knife-edge of the present invention, the profile length overall scope of antenna is 70mm～85mm, width range is 30mm～40mm, the length of the conventional antenna of same frequency surpasses 100mm, the wide 100mm that surpasses, in the antenna of same frequency, size of the present invention is less, gain does not reduce yet, the feeder pillar 11 that is arranged at antenna body 7 inside links to each other with sub-miniature A connector, and sub-miniature A connector is fixed on the bottom of antenna body 7 by sub-miniature A connector ring flange 8, and in order to make antenna and flying body fixing more firm, offer groove 13 again in antenna body 7 bottoms, sub-miniature A connector ring flange 8 is sunk to groove 13 inside, both guaranteed the attractive in appearance of antenna, strengthen the ability that its anti-forced speed impacts again.
Claims (7)
1. novel 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), offer L shaped slit (9) on the antenna body (7), antenna body (7) inner transverse is provided with adjusting rod (1), one end of adjusting rod (1) passes L shaped slit (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), be provided with sub-miniature A connector ring flange (8) in the groove (13), the middle part of sub-miniature A connector (4) is fixed on the center of sub-miniature A connector ring flange (8), and the top of sub-miniature A connector (4) is passed sub-miniature A connector ring flange (8) and linked to each other with feeder pillar (11); The both sides of antenna body (7) offer antenna fixing hole (10).
2. a kind of novel omnidirectional's knife-edge slot antenna according to claim 1, it 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 novel omnidirectional's knife-edge slot antenna according to claim 1, it is characterized in that: the both sides of described sub-miniature A connector ring flange (8) offer ring flange fixing hole (5), and sub-miniature A connector ring flange (8) passes the bottom that ring flange fixing hole (5) is locked in antenna body (7) by screw.
4. a kind of novel omnidirectional's knife-edge slot antenna according to claim 1, it 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 novel omnidirectional's knife-edge slot antenna according to claim 1, it 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 novel omnidirectional's knife-edge slot antenna according to claim 1, it is characterized in that: described antenna fixing hole (10) is counterbore.
7. a kind of novel omnidirectional's knife-edge slot antenna according to claim 1, it 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 true CN103337695A (en) | 2013-10-02 |
| CN103337695B CN103337695B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310255472.7A Active CN103337695B (en) | 2013-06-25 | 2013-06-25 | All-directional knife-shaped slot antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190379A (en) * | 2019-05-05 | 2019-08-30 | 中国商用飞机有限责任公司 | A kind of 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190379A (en) * | 2019-05-05 | 2019-08-30 | 中国商用飞机有限责任公司 | A kind of Airborne High-frequency antenna |
| CN110190379B (en) * | 2019-05-05 | 2021-09-21 | 中国商用飞机有限责任公司 | Airborne high-frequency antenna |
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| Publication number | Publication date |
|---|---|
| CN103337695B (en) | 2015-03-25 |
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