专利摘要:
Abstract Foreliggande uppfinning relaterar till en antennlada med applikationer i marknaden for radiotelekommunikation inkluderade ; ett antal dipolelement (2), en balun (3), en reflektor (5), ett bakre skydd (6) ett framre skydd (7) och delar (10, 11, 12, 13) for montering av antennladan (1) mot en vagg eller liknande. Antennladan kannetecknas vidare av att det bakre skyddet fungerar som en radom, reflektorn (5) integreras med det bakre skyddet (6), dipolelementen (2) integreras med det plana, vasentligen plana eller latt formade framre skyddet (7). Det bakre skyddet (6), och det framre skyddet (7) fungerar vasentligen som barande struktur av &Ian (1). (Fig 1)
公开号:SE1200451A1
申请号:SE1200451
申请日:2012-07-20
公开日:2014-01-21
发明作者:Bengt Gustafsson
申请人:Cbg Holding Ab;
IPC主号:
专利说明:

BOX ANTENNA AND METHOD OF PRODUCING THIS FIELD OF THE INVENTION The present invention relates to an antenna box with application in the market for radio telecommunications with a method of producing the same.
The antenna box consists of a number of dipole elements, a balun, a front cover / protection, a rear hood / protection and a reflector.
The background to this patent application is a previously approved patent application, Swedish patent no. 530103, WO 2008/004970 (Ref 1). Inventors in Ref 1, have later found that several advantages can be achieved by Ora the design in another way. Structural difference between this invention and Ref.1 is that the radom function, relates to the rear hood / protection of the antenna instead of the front protection of the antenna as in Ref 1.
This is not an edge or has been taken into account in the past for every knowledge, and it creates notable new opportunities and benefits.
Connecting an external cable often creates problems. NormaIt Ors connection to the antenna through a continuous connector. Related problems are that the continuous connector sometimes detaches from the structure, corrodes or is damaged.
Patent description according to Ref 1, focused on the TV market, which at the time was interestingly dependent on the ongoing process of transition from analogue to digital terrestrial TV distribution.
This invention means that other applications will be more interesting to consider, such as bases for mobile telephony and antennas for wireless LAN networks which are large quantities.
The telecom market has become very competitive, and demands lower prices.
Environmental issues have also become increasingly important. There is a demand for products with lower energy use in production and in the life cycle, lower use of natural resources and less use of toxic substances.
This invention reduces the above energy problems and other related problems and requirements, TV antennas Regarding argumentation regarding TV antennas, the text from Ref 1 is basically still applicable, where comparison was primarily made with high performance Grid and Yagian antennas. This invention further increases the advantages of mounting antenna elements directly on the front part of an antenna charger, as described in Ref 1.
Small team-performing box antennas for TV reception have been around for a number of years. Normally, they are internally realized on a circuit board including some active electronics, which are then protected by an antenna cover. These were not considered to be of competing interest in Ref 1. However, these antennas can be more efficiently realized with the present invention.
Base Station Antennas These antennas normally use the same type of antenna element, V-Dipoles, that used Antennlalaa as described in this application.
Frequencies are typically 900 MHz and 1800 MHz, meaning smaller antenna elements, with a larger number of dipole elements mounted vertically one above the other.
These antennas are normally realized in a charging structure. The antenna elements are normally made of steel plate mounted on metallic mechanics, and are fixed to the metallic backplane. Antenna mechanics / electronics are protected by an antenna cover. Mechanics for rotation are realized by rotation around a point on the upper and lower surface of the antenna. This is an expensive solution, to use metal parts for the antenna elements, and its fixation, with the need for environmentally unfavorable processes including surface treatment.
This invention has a positive effect on the above requirements, including manufacturing cost, life cycle cost, environmental aspects, and logistics costs.
W-LAN systems are normally used in smaller cells than mobile telephony, such as private homes, a café, a hotel or the like. Normally, they operate within the frequency band 2.5 gHz, meaning smaller antennas when they are adapted to frequency.
Antennas for these systems are normally realized in a charging structure. The antenna elements and active electronics are typically realized on an internal circuit board, PCB. Antenna elements can also be realized with metallic plate parts, which are mounted inside & Ian, as for e.g. base station antennas. This is a costly process.
The present invention enables a smaller and more efficient construction of these antenna barns, with less cost-effective design.
DESCRIPTION OF FIGURES Fig. 1 shows a sketch of the antenna barn according to the foregoing construction of the invention.
Fig. 2 shows a cross-sectional view of the invention.
DETAILED DESCRIPTION The invention according to some documents is considered as an improvement of design compared to Ref 1. The present invention comprises the following main parts; a conceptual realization of design for an antenna-laden methods of producing this conceptual design.
Fig. 1 shows an exploded view of an antenna barn 1 according to a proposed structure of the present invention.
The antenna barn 1 comprises a number of dipole elements 2, a flat front cover 7 which is integrated with the antenna elements and / or the balloon 3, a rear cover 6 which is integrated with the reflector 5, and parts 10-13 for mounting & Ian on a cradle or the like. .
The radome / wader protection is thus part of the rear protection 6, not of the front protection 7 as in the existing design according to Ref 1. This concept enables patagiga advantages in the overall design of & Ian, its manufacture and use.
The type of design that has been described has not been realized, described or discussed in other contexts to the knowledge of the inventor.
An immediate positive effect is that the external dimensions of & Ian 1 decrease compared to Ref 1, depending on the required shape of the rear protection in its process for shaping plastic.
The present invention enables & Ian, 1, to have a flat or nearly flat front disc 7. This enables great advantages for fabrication and integration. Integration of antenna elements 2 and balun 3 becomes easier to relise in existing processes. Other electronic circuits can be effectively integrated on the flat front disc 7 with existing established processes.
More comprehensive passive and active electronic functions, which use surface-mounted components, can thereby be realized on / in the front cover 7. The front cover can be realized as a single-sided circuit board, PCB, and similar processes and functions that can be used for PCBs.
Low cost processes can be used / developed, which combine requirements for antenna elements and electronics circuits. Cooling of active electronic crests is generally a problem. Existing designs create a greenhouse effect for the heat-generating active circuits, which are enclosed by an antenna cover with stationary air. Cooling of active electronics now becomes more efficient, because as it is mounted on an outer wall.
The fact that the front plate 7 becomes near planar, including complete electromechanical antenna function and components, makes logistics in manufacture easier / cheaper for this vital and more sensitive part of the construction.
The above means that many types of antennas can be effectively converted into a design according to the invention, with great opportunities for savings in production, smaller dimensions and less access to used material / energy.
Since the reflector 5 is integrated with the rear cover 6 and the antenna elements in the front cover 7, depth and outer dimensions can be minimized compared with the required distance given by frequency / performance.
Smaller dimensions and lower weight meant savings in storage, transport plus lower load on final use with assembly / mast and hence savings in end use assembly structures.
Smaller number of components, materials and substances, reduces costs, and use of toxic and environmentally undesirable substances.
Lateral radio wave shielding is often of interest to antennas. Since side cradles in the invention are now in the same part, the rear cover 6, as the reflector 5, radio cradle shielding can be realized more efficiently in the same process as for the reflector, for example metallization of a plastic back cover 6, including the side cradles. This would have been more complicated and expensive in the previous construction according to Ref 1.
Since the rear cover 6 can now be effectively realized with extruded plastic, mounting bolts 10, 11 can be molded into the rear cover. This meant lower production costs and increased quality in assembly details.
The invention includes mounting cable gland 8 on the flat front cover, which then includes all electrical components. Advantage compared to Ref 1, is the fact that this finished unit becomes quite flat, which makes it much easier / cheaper to handle / move / store in production.
The invention also includes that mounting of cable 4, can be done more efficiently by avoiding the use of intermediate cable gland, position 8, and instead lets the cable 4 pass the rear cover 6, and have a connector 9 on the cable to be connected directly to the external connector .
For TV antennas according to construction Ref 1, the antenna elements and the circuit for the balun 3, according to the invention can now be realized in the same cost-effective production steps. Cost-effective methods for printing, pressing and etching can be used.
For smaller box antennas with lower performance, the internal circuit board can be replaced with a circuit pattern on the front cover. External dimensions. External dimensions related to the desired distance between the antenna element and the reflector can be reduced.
In base stations for mobile telephony, the antenna elements, the balloon, and the circuits for antenna electronics can be integrated with the flat front cover 7. Mounting mechanics for these functions are not required. Production costs, weight, and dimensions decrease. This meant secondary positive effects for the environment and logistics, including storage and transport.
In antennas for W-LAN, antenna functions are realized in internal electronics / mechanics, thanks to a radom. With this invention, the antenna elements and electronic functions can be effectively realized on the front cover 7. Reflector can be effectively realized on the rear cover 6. Most of the existing internal circuit boards and mechanics enclosed by the radome can be removed. The relationship between external dimensions and antenna performance has also improved.
The invention includes parts 10-13 for rotatably mounting and fixing the antenna to the cradle, with three fixing points. AU using this type of fixation is a cost-effective advantage, which prevents the antenna from twisting in strong winds.
The invention describes methods for producing the antenna, which become accessible and advantageous for the construction of the invention.
It is possible to use available flat material, which is suitable for the use of established processes to integrate antenna elements, balun and additional electronics for the realization of desired functions such as signal amplification, impedance matching circuits and distribution networks for signals.
Vacuum forming is an efficient process for small series, as it has a legal cost for tools.
Molding of plastic or extrusion of the rear cover 6 is a competitive process, which gives freedom in design. It is possible to implement snap mounting when mounting the front cover 7 against the rear cover 6, and and it is possible to integrate mounting screws 10, 11. These conditions reduce product costs. 1
权利要求:
Claims (14)
[1]
Antenna box (1) intended for radio telecommunication and comprising a number of dipole elements (2), a balun (3), a back piece (6) and a front piece, cam drawn dArav, that the back piece (6) is arranged to function as a weather protection together with the front piece (7), the dipole elements (2) abut / integrate with the substantially flat front piece (7), the back piece (6) and the front piece (7) being arranged to function as a load-bearing structure of the antenna box (1).
[2]
Antenna box (1) according to claim 1, characterized in that both the dipole elements (1) and the balloon (3) are integrated with the front piece (7). 20
[3]
Antenna box (1) according to any one of the preceding claims, characterized in that also a reflector (5) is housed in the antenna box (1), this reflector (5) being integrated with the back piece (6). 25
[4]
Antenna box (1) according to claim 3, characterized in that the dipole elements (2) and / or the balloon (3) sit together with the inside of said front piece (7), preferably on the side opposite the reflector (5), with some type of adhesion , e.g. glue or tape.
[5]
Antenna box (1) according to claim 3, characterized in that the dipole elements (2) and / or the balloon (3) are 2 cast, pressed or vacuum-formed into the front piece (7), preferably on the side opposite the reflector (5).
[6]
Antenna box (1) according to any one of claims 3-5, characterized in that the dipole elements (2) and / or the balloon (3) are printed, screen printed, etched or the like on the surface of the front cover (7), preferably on the opposite side. the reflector (5). 10
[7]
Antenna box (1) according to any one of claims 1-2, characterized in that a continuous connector (8) is mounted in the front piece (7), for example with an angle plate which is fixed in the front piece (7). 15
[8]
Antenna box (1) according to any one of claims 1-5, characterized in that a cable (4) with terminating connector (9) passes directly through the back piece (6).
[9]
Antenna box (1) according to one of the preceding claims, characterized in that the back piece (6) is provided with a function for lateral radio wave shielding.
[10]
Antenna box (1) according to any one of the preceding claims, characterized in that the antenna box (1) is provided with parts (10, 12) for rotatably mounting one side of the antenna box (1) against a cradle or the like and preferably including an adjustable rotation fixation (11, 13) in the other side. 30
[11]
Antenna box (1) according to one of the preceding claims, characterized in that mounting bolts (10, 11) are molded / pressed into a rear plastic cover. 3
[12]
Antenna box (1) according to any one of the preceding claims 3-11, characterized in that the side cradles of the back piece (6) are metallized in the same process as the reflector (5).
[13]
A method of producing an antenna box (1) according to any one of the preceding claims, characterized in that it comprises the following production steps: 1. shaping the backing (6) by vacuum forming, extrusion or casting, 2. assembly / integration of the dipole elements (2 ) and the balloon (3) in the front piece (7), in a previous step or a subsequent step, and 3. mounting the back piece (6) in the front piece (7).
[14]
Method according to claim 13, characterized in that similar processes are used as for circuit board manufacturing for the front piece (7) and that further active or passive electronic function is preferably integrated in the front piece (7). . 1 b .., q-, .........--- 1 sco
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同族专利:
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引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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SE1200451A|SE537623C2|2012-07-20|2012-07-20|Antenna box and method of producing the same|SE1200451A| SE537623C2|2012-07-20|2012-07-20|Antenna box and method of producing the same|
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