CN102709700B - Crack waveguide antenna and manufacturing method thereof - Google Patents
Crack waveguide antenna and manufacturing method thereof Download PDFInfo
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- CN102709700B CN102709700B CN201110285367.9A CN201110285367A CN102709700B CN 102709700 B CN102709700 B CN 102709700B CN 201110285367 A CN201110285367 A CN 201110285367A CN 102709700 B CN102709700 B CN 102709700B
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Abstract
The invention provides a crack wave guide antenna which has functions of water resistance, dust prevention, abrasion resistance, trampling prevention and can be conveniently used for ensuring normal running of various communication systems. The crack waveguide antenna is provided with at least one crack waveguide pipe, the crack waveguide pipe is used for transmitting a signal and comprises a pipeline and flanges, the flanges are formed at two ends of the pipeline, a plurality of cracks are arranged on the surface of the pipeline and are used for leading the signal to transmit from inside of the crack waveguide pipe to outside space, the crack waveguide antenna is characterized by also comprising a first protection layer, a second protection layer and a third protection layer, the first protection layer, the second protection layer and the third protection layer can be used for wave transmission, the first protection layer covers the plurality of cracks, the second protection layer is covered on the first protection layer, and the third protection layer is covered on the second protection layer.
Description
Technical field
The present invention relates to a kind of slotted waveguide antenna, particularly relate to a kind of slotted waveguide antenna with safeguard function.
Background technology
Along with the development of computer technology, the communication technology and automatic control technology, in technical field of rail transit communication, develop movable block Train Control (CBTC) system based on radio communication, transfer of data and train location widely use with realizing car.Adopt crack waveguide tube as the slotted waveguide antenna of car ground transmitted in both directions medium, namely adopt the crack waveguide tube laid along the line and the WAP (wireless access point) be connected with waveguide as the bi-directional transfer path of trackside and train.It is large that crack waveguide tube in this system has message capacity, can transmit in tunnel and bending channel, the transmission reflection have that antijamming capability is strong, loss is little, causing without other vehicles, can in features such as dense city transmission.Another advantage of crack waveguide tube is that transmission rate is large, can meet the requirement of train control system.Along with developing rapidly of domestic and international track traffic, corresponding rail hands over the market demand of slotted waveguide antenna also to it is expected to.As everyone knows, slotted waveguide antenna structurally, by a kind of hollow, metal tube that inwall is very bright and clean (circular or square etc.) or in cover the pipeline of metal, its surface has through processing that gap is made.Onsite application according to slotted waveguide antenna finds, at the cracking seam place of crack waveguide tube, flange and waveguide junction, adjacent slits waveguide junction etc. all there is the hidden danger that rainwater, dust etc. corrode, if do not taken effective measures, the transmission performance of slotted waveguide antenna certainly will be affected, then whole train-ground communication RF system is had influence on, track traffic can be caused time serious to interrupt, even jeopardize the traffic safety of track traffic.
Summary of the invention
The object of the invention is to overcome the disappearance and deficiency that exist in above-mentioned prior art, propose a kind of to there is waterproof and dustproof, anti-wear, the anti-slotted waveguide antenna function such as trampling.
Slotted waveguide antenna provided by the invention, there is at least one crack waveguide tube for signal transmission, described crack waveguide tube comprises pipeline and is formed in the flange of this pipe ends, the surface of described pipeline is provided with and makes described signal be transmitted to a plurality of cracks of space outerpace from described crack waveguide tube inside, it is characterized in that, also have by can the first overcoat of wave transparent, the second overcoat, the 3rd overcoat.Wherein, described first overcoat covers described a plurality of crack; Described second overcoat covers on described first overcoat; Described 3rd overcoat covers on described second overcoat.
Slotted waveguide antenna provided by the invention, be further characterized in that: wherein, described first overcoat is made up of adhesive tape layer, described second overcoat is made up of the narrow fiberglass cloth bonded through epoxy resin and narrow glass fabric, and described 3rd overcoat is made up of the protective cover also extending two sides covering crack waveguide tube covering described second overcoat while.
Slotted waveguide antenna provided by the invention, is further characterized in that: described adhesive tape layer is made up of a kind of in the adhesive tape of grid type or non-grid type.The upper surface of described protective cover is curved, and the material being greater than 50 joules per meter by notch impact strength is formed.
Slotted waveguide antenna provided by the invention, is further characterized in that: the notch impact strength of described protective cover material therefor is more than 180 joules per meter.
Slotted waveguide antenna provided by the invention, is further characterized in that: the length direction along described crack waveguide tube that the inner surface of described protective cover is also provided with at least one is formed and the reinforcement protruded to described slotted waveguide tube-surface.
Slotted waveguide antenna provided by the invention, is further characterized in that: also close to described flange on described protective cover, arranging at least one water baffle bar, leaking into described pipeline for stoping water along the length direction of described protective cover.
Slotted waveguide antenna provided by the invention, is further characterized in that: also have the flange cover covering described flange.Wherein, described flange cover covers described water baffle bar simultaneously.
Slotted waveguide antenna provided by the invention, is further characterized in that: wherein, and described crack waveguide tube has two or more, between adjacent two described crack waveguide tubes, adopts described flange cover as spacer flanger cover; Be arranged on the end of the described crack waveguide tube of described signal transmission input and output side, adopt described flange cover as end flange cover.
Slotted waveguide antenna provided by the invention, be further characterized in that: wherein, described crack waveguide tube has two or more, between adjacent two described crack waveguide tubes, adopt the sealing flange comprising two-sided O RunddichtringO to connect, described flange cover covers sealing flange simultaneously.
Slotted waveguide antenna provided by the invention, is further characterized in that: also have the 4th overcoat, between described second overcoat and described 3rd overcoat.Described 4th overcoat is made up of wide fiberglass cloth, is formed in two ends of described pipeline, for preventing because of the damage causing described second overcoat that rubs.
Slotted waveguide antenna provided by the invention, is further characterized in that: also have the 5th overcoat, cover the junction of described pipeline and described flange.
Invention effect
In sum, slotted waveguide antenna provided by the invention, because it has by can the first overcoat of wave transparent, the second overcoat, the 3rd overcoat is formed, and wherein, the first overcoat covers a plurality of crack; Second overcoat covers on described first overcoat; 3rd overcoat covers on described second overcoat.Therefore existing slotted waveguide antenna waterproof and dustproof, anti-wear, the anti-problem such as to trample is solved, meet the transmission performance of slotted waveguide antenna, ensure that the normal operation of train-ground communication RF system, thus the safe operation as track traffic and other communication systems can be guaranteed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the slotted waveguide antenna in embodiment of the present invention.
Fig. 2 is the structural representation of the crack waveguide tube in embodiment of the present invention.
Fig. 3 (a) is the B-B cutaway view of the crack waveguide tube in embodiment of the present invention.
Fig. 3 (b) is the partial enlarged drawing of composite armor in Fig. 3 (a).
Fig. 4 is the A-A cutaway view of the crack waveguide tube in embodiment of the present invention.
Fig. 5 is the partial enlarged drawing of the composite armor in embodiment of the present invention.
Fig. 6 is the structural representation of the protective cover in embodiment of the present invention.
Fig. 7 is the structural representation of the water baffle bar in embodiment of the present invention.
Fig. 8 is the structural representation of the 5th overcoat in embodiment of the present invention.
Fig. 9 is the structural representation of the adjacent two crack waveguide tube junctions in embodiment of the present invention.
Figure 10 (a) is the structural representation of the sealing flange in embodiment of the present invention.
Figure 10 (b) is the C-C cutaway view of the sealing flange in embodiment of the present invention.
Embodiment
Describe the slotted waveguide antenna and manufacture method thereof that relate in detail below in conjunction with the drawings and specific embodiments, but protection scope of the present invention is not limited to following execution mode.
As Fig. 1 display is the structural representation of slotted waveguide antenna 10.Wherein comprise two crack waveguide tubes 11 for signal transmission, the flange cover 12 being arranged on the sealing flange 13 between these two crack waveguide tubes 11 and covering on sealing flange 13.Hold the signal transmission that the coaxial conversion (not shown) be connected inputs with M from figure, arrive output N by two crack waveguide tubes 11 to hold, superfluous signal holds the load (not shown) be connected to absorb by with N, thus realizes the transfer function of signal.
As Fig. 2 display is the structural representation of crack waveguide tube 11.This crack waveguide tube 11 is by passing through the surperficial aluminum rectangular tube road 14 (namely, pipe section) having a plurality of crack 18 and process, both ends of the surface flange 15 is connected by modes such as welding, covering the 3rd overcoat---the protective cover 16 pipeline 14 playing protective action, being arranged on above protective cover 16, for stoping water to form along the length direction leakage inlet pipe road 14 of protective cover 16 and close to the water baffle bar 17 at flange 15 place.The waveguide that the present invention relates to is not only the aluminium alloy rectangular waveguide described in this implementation method, it can also be the various metal material such as copper, invar alloy, cover the pipeline of metal in can also being, its shape can also be the pipeline of the various shape such as square, circular.The connected mode of pipeline and flange is also not only the welding manner described in this implementation method, can be the various mode such as bonding.
As the B-B cutaway view that Fig. 3 (a) is crack waveguide tube 11.The surface coverage having a plurality of crack 18 at pipeline 14 has composite armor 19, the impact of foreign matter fracture waveguide 11 transmission performances such as anti-sealing, dust.Be coated with protective cover 16 above composite armor 19 as the 3rd overcoat, protective cover 16 is water baffle bar 17 above.
As the partial enlarged drawing I that Fig. 3 (b) is composite armor 19, therefrom can see composite armor clearly and comprise the first overcoat, the second overcoat and the 4th overcoat.Wherein the first overcoat is made up of the adhesive tape layer 20 of grid type or non-grid type, covers on a plurality of crack 18, prevent dust from entering pipeline 14.Second overcoat is made up of the narrow fiberglass cloth 21 bonded through epoxy resin and narrow glass fabric, covers on the first overcoat and protect the first overcoat, and prevent rainwater from entering pipeline 14.4th overcoat at the second overcoat and the 3rd overcoat, namely between protective cover 16, be form with wide wide fiberglass cloth 22 by with pipeline 14, be formed in two ends of pipeline 14, for preventing because friction causes the damage of the second overcoat.
First overcoat can be not only adhesive tape, can also be any material that can play dustproof effect that plastic film etc. has wave penetrate capability.
Second overcoat can be not only narrow fiberglass cloth, can also be use any bonding agent and various shape, the waterproof layer of size forms.
4th overcoat can be not only with waveguide with wide fiberglass cloth, can also be use any bonding agent and various shape, the waterproof layer of size forms.
In the present embodiment, composite armor 19 is made up of the first overcoat, the second overcoat and the 4th overcoat.But composite armor 19 also can be only made up of the first overcoat, the second overcoat, in this case, can reach various equally and need protection object.Certainly, composite armor 19 also can be formed by than the more layer of present embodiment, and consider from cost and effect, present embodiment is best.
As the A-A cutaway view that Fig. 4 is crack waveguide tube 11.What this figure showed is cover on whole crack waveguide tube 11 as the 3rd overcoat protective cover 16, on protective cover 16 and close to the two ends at flange 15 place, two water baffle bars 17 being respectively set, leaking inlet pipe road 14 for stoping rainwater along the length direction of protective cover 16.
The partial enlarged drawing II of the composite armor 19 of crack waveguide tube 11 as Fig. 5.Show in figure the first overcoat and the second overcoat along the length direction of pipeline 14 and pipeline 14 isometric, and the 4th overcoat is only pasted at the both ends of pipeline 14 near flange 15 place, plays the effect of the second overcoat damage preventing from causing because rubbing.
As the structural representation that Fig. 6 is protective cover 16.As the protective cover 16 of the 3rd overcoat, cover on the second overcoat, also there is the 16b part formation extending and cover two sides of crack waveguide tube 11 simultaneously.In order to prevent rainwater to be deposited on protective cover 16,16a is curved for its upper surface.Trample in order to anti-, improve its intensity, be also provided with two length directions along crack waveguide tube 11 at the inner surface of protective cover 16, and to the reinforcement 16c that crack waveguide tube 11 surface is protruded.Reinforcement be not only describe in this implementation method position, direction, quantity and shape, can also be the raised or sunken of protective cover arbitrary surfaces.
Except having waterproof and dustproof, anti-wear, anti-ly to trample, can except the performance requirement such as wave transparent, (density is about 1.7g/mm to lighter than steel 4 ~ 5 times of the material selected because of protective cover 16
3), intensity but with ordinary carbon steel close to (hot strength is greater than 350MPa, bending strength is greater than 350MPa, the modulus of elasticity in static bending is greater than 20000MPa), notch impact strength is greater than 200 joules per meter, therefore its also have that quality is light, intensity is high, toughness is high, the performance such as anti-aging, long-life.
As the structural representation that Fig. 7 is water baffle bar 17.On protective cover 16, close to the two ends at flange 15 place, two water baffle bars 17 being respectively set, leaking inlet pipe road 14 for stoping rainwater along the length direction of protective cover 16.Water baffle bar be not only describe in this implementation method position, direction, quantity and shape, can also be any part playing resistance effect being arranged on protective cover surface.Such as, in the present embodiment, be provided with two water baffle bars 17, this water baffle bar 17 is straight strip types.But also only can arrange one or more, also can be set to arc bar shaped, the center towards pipeline 14 encircles simultaneously, in this case, make rainwater can flow to ground along protective cover surface more swimmingly thus anti-leak-stopping in pipeline.
As the structural representation that Fig. 8 is the 5th overcoat.5th overcoat of crack waveguide tube 11 of the present invention, is cover flange 15 and the leak stopping layer of the junction of pipeline 14, is formed by sealing agent, for the Seepage preventing the defects such as the sand holes that may occur because of weld seam 23 place from causing.
As the structural representation that Fig. 9 is adjacent two crack waveguide tube junctions.When forming slotted waveguide antenna 10, need be formed by connecting by two or more crack waveguide tube 11, it has been equipped with the sealing flange 13 of protective action between the two, it is also coated with spacer flanger cover 12, is then coated with end flange cover (not shown) at the input of crack waveguide tube, output end place.
As the structural representation that Figure 10 is sealing flange.Shown in Figure 10 (a) is that two sides has seal groove, is provided with the front view of the sealing flange 13 of O RunddichtringO 24, and sealing flange 13 is arranged between two adjacent crack waveguide tubes 11, plays protective action.Shown in Figure 10 (b) is the C-C cutaway view of sealing flange 13.
To the slotted waveguide antenna of said structure, inventors performed following test.
1. Hose Test
Connected by two crack waveguide tubes, place dry, white anhydrous copper sulphate powder in the two-port inside of waveguide, then lie on smooth ground after sealing, fracture surface upwards.
Start water pump, regulating water flow is 12.5 ± 0.625L/min, and now separating nozzle 2.5m place of main middle of the stream portion diameter is about the circle of 40mm.
With the test nozzle that nozzle inside diameter is φ 6.3mm, spray water to slotted waveguide in all possible direction.Nozzle is about 2.5 ~ 3m from the distance of slotted waveguide.
Water spray duration at least 3min.
Conclusion: spray water complete, dry with the water mark of dry wipe by slotted waveguide surface, the connection between the flange cover of slotted waveguide, radome and waveguide opened successively by use instrument, checks copper sulphate powder, do not find that white powder becomes blueness, illustrates in waveguide and does not have water to enter.
2. water test
Equally the slotted waveguide of two 1m is connected, place dry, white anhydrous copper sulphate powder in the two-port inside of waveguide, seal respectively.Rope is some, and counterweight weight is some, is enough to set aside concerns in the pond of slotted waveguide, and the degree of depth in pond is greater than 1 meter.
The weight and slotted waveguide that enough make slotted waveguide submerged are bundled.
The two ends of slotted waveguide are tied respectively with two ropes.
Hold rope and slotted waveguide is slowly put into pond together with weight, until slotted waveguide is lower than the water surface 1 meter of.
Immersion duration 24h.
Conclusion: soak complete, dry with the water mark of dry wipe by slotted waveguide surface, the connection between the flange cover of slotted waveguide, radome and waveguide opened successively by use instrument, checks copper sulphate powder, do not find that white powder becomes blueness, illustrates in waveguide and does not have water to enter.
Through the checking of above-mentioned experiment, show that the present invention is effective by the enforcement of this specific implementation method.
Execution mode effect and effect
In the slotted waveguide antenna of present embodiment, a plurality of crack is covered by the first overcoat adhesive tape layer 20, the narrow fiberglass cloth of second overcoat 21 covers on described first overcoat, 3rd overcoat protective cover 16 covers on described second overcoat, solves existing slotted waveguide antenna waterproof and dustproof, anti-wear, the anti-problem such as to trample.
Further, because also have the wide fiberglass cloth 22 of the 4th overcoat, cover the 5th overcoat of flange 15 and pipeline 14 junction, and water baffle bar 17, sealing flange 13 and cover setting and the use of the parts such as spacer flanger cover 12 thereon, more improve the barrier propterty of slotted waveguide antenna, more can meet the transmission performance of slotted waveguide antenna, ensure that the normal operation of train-ground communication RF system, thus the safe operation of track traffic can be guaranteed.
Therefore the slotted waveguide antenna obtained by this embodiment has obviously protection effect.
Based on aim of the present invention, can carry out various similar safeguard procedures, such as, use different overcoats, adhesive, the flange, protective cover, flange cover etc. of various shape, do not get rid of these from scope of the present invention.
The crack of slotted waveguide antenna of the present invention can be out on different surfaces, or multiple surface; The shape in its crack also can be rectangle, the various shape such as square or circular.
The frequency of utilization of slotted waveguide antenna of the present invention can be 2.4GHz, also can use in 5.8GHz or other frequency ranges.
When the independent use of slotted waveguide antenna of the present invention, only in the coaxial conversion of its input access, output accesses load, can not use middle sealing flange.
The present invention has the slotted waveguide antenna of safeguard function in addition, is not only applicable to use in track traffic, can also use as transmission line in other occasions such as ship communication radar, ground communication radars.
Claims (13)
1. a slotted waveguide antenna, along the track laying in field of track traffic, there is at least one crack waveguide tube for signal transmission, described crack waveguide tube comprises pipeline and is formed in the flange of this pipe ends, the surface of described pipeline is provided with and makes described signal be transmitted to a plurality of cracks of space outerpace from described crack waveguide tube inside, it is characterized in that, also having can the first overcoat of wave transparent, second overcoat, 3rd overcoat, 4th overcoat and cover the flange cover of described flange
Wherein, described first overcoat is made up of adhesive tape layer and covers described a plurality of crack,
Described second overcoat is made up of the narrow fiberglass cloth bonded through epoxy resin and narrow glass fabric and covers on described first overcoat,
Described 3rd overcoat also extends as protective cover and is close to two sides covering described crack waveguide tube while covering described second overcoat,
The length direction that the inner surface of described protective cover is provided with along described crack waveguide tube extends and at least one reinforcement protruded towards described second overcoat,
Described protective cover is made up of the material that hot strength is greater than 350MPa, bending strength is greater than 350MPa, the modulus of elasticity in static bending is greater than 20000MPa,
Described 4th overcoat between the end of described second overcoat and the end of described 3rd overcoat, for preventing because friction causes the damage of described second overcoat.
2. slotted waveguide antenna according to claim 1, is characterized in that:
Wherein, described adhesive tape layer is made up of a kind of in the adhesive tape of grid type or non-grid type,
The upper surface of described protective cover is curved, and the material being greater than 50 joules per meter by notch impact strength is formed.
3. slotted waveguide antenna according to claim 2, is characterized in that:
Wherein, the notch impact strength of described protective cover material therefor is more than 180 joules per meter.
4. slotted waveguide antenna according to claim 2, is characterized in that:
Wherein, close to described flange on described protective cover, at least one water baffle bar being set, leaking in described pipeline along the length direction of described protective cover for stoping water.
5. slotted waveguide antenna according to claim 4, is characterized in that:
Wherein, described flange cover covers described water baffle bar simultaneously.
6. slotted waveguide antenna according to claim 1, is characterized in that:
Wherein, described crack waveguide tube has two or more, between adjacent two described crack waveguide tubes, adopts described flange cover as spacer flanger cover; Be arranged on the end of the described crack waveguide tube of described signal transmission input and output side, adopt described flange cover as end flange cover.
7. slotted waveguide antenna according to claim 6, is characterized in that:
Wherein, described crack waveguide tube has two or more, and between adjacent two described crack waveguide tubes, adopt the sealing flange comprising two-sided O RunddichtringO to connect, described flange cover covers sealing flange simultaneously.
8. slotted waveguide antenna according to claim 1, is characterized in that:
Wherein, described 4th overcoat is made up of wide fiberglass cloth.
9. slotted waveguide antenna according to claim 1, is characterized in that:
Also there is the 5th overcoat, cover the junction of described pipeline and described flange.
10. the manufacture method of a slotted waveguide antenna, this slotted waveguide antenna has at least one crack waveguide tube for signal transmission, described crack waveguide tube comprises pipeline and is formed in the flange of this pipe ends, the surface of described pipeline is provided with and makes described signal be transmitted to a plurality of cracks of space outerpace from described crack waveguide tube inside, it is characterized in that
On described pipeline formed can wave transparent and by adhesive tape layer form first overcoat cover described a plurality of crack,
Formation can wave transparent and the second overcoat be made up of the narrow fiberglass cloth bonded through epoxy resin and narrow glass fabric covers on described first overcoat,
Formation the 3rd overcoat of wave transparent can cover described crack waveguide tube and the protective cover being close to two sides of described crack waveguide tube covers on described second overcoat as having to extend,
Be formed in the 4th overcoat between the end of described second overcoat and the end of described 3rd overcoat,
At least one reinforcement that the length direction along described crack waveguide tube extends is provided with at the inner surface of described protective cover,
On described protective cover and close to described flange, also form at least one and leak the water baffle bar into described pipeline for stoping water along the length direction of described protective cover,
Be provided with the flange cover covering described flange.
The manufacture method of 11. slotted waveguide antennas according to claim 10, is characterized in that:
Close to described flange on described protective cover, also form at least one and leak into the water baffle bar in described pipeline along the length direction of described protective cover for stoping water.
The manufacture method of 12. slotted waveguide antennas according to claim 10, is characterized in that:
The sealing flange of two-sided O RunddichtringO is also set at adjacent two described crack waveguide tubes,
Described flange covers and covers described water baffle bar.
The manufacture method of 13. slotted waveguide antennas according to claim 10, is characterized in that:
Also form the 5th overcoat, cover the junction of described pipeline and described flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285367.9A CN102709700B (en) | 2010-09-10 | 2011-09-13 | Crack waveguide antenna and manufacturing method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010278572 | 2010-09-10 | ||
| CN201010278572.8 | 2010-09-10 | ||
| CN201110285367.9A CN102709700B (en) | 2010-09-10 | 2011-09-13 | Crack waveguide antenna and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102709700A CN102709700A (en) | 2012-10-03 |
| CN102709700B true CN102709700B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110285367.9A Active CN102709700B (en) | 2010-09-10 | 2011-09-13 | Crack waveguide antenna and manufacturing method thereof |
| CN2011203648910U Expired - Lifetime CN202308319U (en) | 2010-09-10 | 2011-09-13 | Slotted waveguide antenna |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203648910U Expired - Lifetime CN202308319U (en) | 2010-09-10 | 2011-09-13 | Slotted waveguide antenna |
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| CN (2) | CN102709700B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709700B (en) * | 2010-09-10 | 2015-03-25 | 中电科微波通信(上海)有限公司 | Crack waveguide antenna and manufacturing method thereof |
| CN103056608A (en) * | 2012-12-11 | 2013-04-24 | 龙口丛林中德车体系统工程有限公司 | Production method of microwave leaky waveguide |
| CN110137651A (en) * | 2019-05-23 | 2019-08-16 | 中电科微波通信（上海）股份有限公司 | A kind of slotted waveguide tube assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005431A (en) * | 1974-06-26 | 1977-01-25 | Telefonaktiebolaget L M Ericsson | Slot antenna with waveguide coupling |
| CN1158015A (en) * | 1996-12-30 | 1997-08-27 | 成都宏城电子有限公司 | Crack waveguide mode Doppler high-frequency assembly |
| CN2762372Y (en) * | 2004-12-24 | 2006-03-01 | 佛山市健博通电讯实业有限公司 | Horizontally-polarized waveguide omnidirectional antenna |
| CN201038312Y (en) * | 2007-04-30 | 2008-03-19 | 南京恩瑞特实业有限公司 | Smart type high-strength antenna housing |
| CN101728649A (en) * | 2008-10-28 | 2010-06-09 | 西安恒达微波技术开发公司 | MMDS high-gain waveguide slot half-direction antenna |
| CN202308319U (en) * | 2010-09-10 | 2012-07-04 | 中电科微波通信(上海)有限公司 | Slotted waveguide antenna |
-
2011
- 2011-09-13 CN CN201110285367.9A patent/CN102709700B/en active Active
- 2011-09-13 CN CN2011203648910U patent/CN202308319U/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005431A (en) * | 1974-06-26 | 1977-01-25 | Telefonaktiebolaget L M Ericsson | Slot antenna with waveguide coupling |
| CN1158015A (en) * | 1996-12-30 | 1997-08-27 | 成都宏城电子有限公司 | Crack waveguide mode Doppler high-frequency assembly |
| CN2762372Y (en) * | 2004-12-24 | 2006-03-01 | 佛山市健博通电讯实业有限公司 | Horizontally-polarized waveguide omnidirectional antenna |
| CN201038312Y (en) * | 2007-04-30 | 2008-03-19 | 南京恩瑞特实业有限公司 | Smart type high-strength antenna housing |
| CN101728649A (en) * | 2008-10-28 | 2010-06-09 | 西安恒达微波技术开发公司 | MMDS high-gain waveguide slot half-direction antenna |
| CN202308319U (en) * | 2010-09-10 | 2012-07-04 | 中电科微波通信(上海)有限公司 | Slotted waveguide antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102709700A (en) | 2012-10-03 |
| CN202308319U (en) | 2012-07-04 |
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Address after: 201802 Shanghai, Jiading District silver Xiang Road, room 655, No. 1309 Patentee after: Division of microwave communication (Shanghai) Limited by Share Ltd Address before: 201802 Shanghai City, Jiading District Nanxiang Town, Shanghai Yi Road No. 185 building 4 Patentee before: CLP Microwave Communication (Shanghai) Co.,Ltd. |