• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention includes a device for receiving electromagnetic signal and further radiating the signal. With that device the signal can be repeated on the other side of a barrier, for example a wall, which prevents the signal from propagating. The receiving portion of the device (1) has been designed as a flat aperture antenna, as well as the radiating portion (2). The above-shaped flat aperture antenna has been designed in such a way that between the antenna parts of conductive material (6) there is a gap (7) which opens in the direction of the signal (4 and 5). Between the above-mentioned receiving part (1) and the radiating part (2) there is a signal transmission part (3), which has been performed in two parallel conductors (8) with a space (9). The interfaces between the receiving part (1), the signal transmission part (3) and the radiating part (2) have been performed continuously and without separate switching devices.
    公开号:FI20187002A1
    申请号:FI20187002
    申请日:2018-01-05
    公开日:2019-07-06
    发明作者:Erkki Salonen
    申请人:Erkki Salonen；
    IPC主号:
    专利说明:

    The invention relates to an apparatus for receiving and re-irradiating an electromagnetic signal. With the device according to the invention, the signal can be reproduced on one side of an obstacle, for example a wall, which impedes its passage.
    The energy consumption of buildings plays an important role in the overall energy consumption, especially in cold climatic conditions such as Finland. Due to increasing energy efficiency requirements, the insulation capacity of buildings has been further improved with the aim of zero energy houses.
    New building materials, such as energy-efficient conductive-coated windows (selective glasses) and aluminum-coated polyurethane insulating panels, significantly attenuate radio signal transmission, particularly at commonly used mobile frequencies (900MHz, 2100 MHz). For example, at 2100 MHz, values of up to 40 dB have been measured for transmittance damping on both aluminum-plated insulating panels and selective windows, meaning that the signal level is attenuated to 10,000 parts of the original (Tampere University of Technology.
    At mobile frequencies, radio waves penetrate from the inside (or vice versa), mainly through windows, if the walls are of concrete or the walls are covered with aluminum surface insulation. The windows of new energy-efficient buildings use metal-oxide-selective glasses, which are designed to prevent heat from escaping but at the same time prevent the radio wave from passing through the window panes. Indeed, in new energy-efficient houses, cellular phone coverage problems are common.
    Mobile operators can improve coverage by densifying the base station network and building base stations inside large buildings, but the costs are very high.
    Active repeater devices with amplifiers interfere with network control and are not accepted by operators in the frequency bands they control.
    Current technology is described in the following publications:
    • US 20030214774 • US 7429953 • DE 102014204495 • Fl 126944 B • US 20020119748 • Fl 10682
    A low-cost broadband solution has not previously been proposed for the problem of mobile device coverage in new low-energy houses.
    For example, the invention includes a passive broadband repeater antenna structure to be installed in window structures and an antenna array consisting thereof. The antenna solution improves the penetration of radio waves indoors over a wide frequency range, thereby improving current and future mobile communications, especially in energy-efficient buildings. The antenna structure of the invention can be integrated, for example, into window structures or mounted in a window frame.
    The invention can also be used to direct the signal to shadows, for example, behind a corner. This problem is exacerbated by shorter wavelengths. For example, wireless wlan networks are predicted to use wavelengths in the future that will not travel from one room to another without the aid of devices.
    A passive repeater antenna can be implemented by connecting a coaxial cable between two antennas. The problem with such a solution is that the transition from the antenna to e.g. 50 ohm coaxial cable is difficult to obtain broadband. In addition, connectors and intermediate cables increase the cost of the structure.
    The problem with repeater antenna solutions based on resonance-like structures is that new frequency bands, for example during the life cycle of a building, cannot be taken into account at the design stage. The broadband solution presented here is more likely to be applicable in future frequency bands as well.
    The invention will now be described with reference to the accompanying drawings, in which:
    Figure 1 illustrates the working principle and general embodiment of the invention
    Figure 2 illustrates an embodiment of the invention in front and in cross-section
    Figure 3 illustrates another embodiment of the invention
    Figures 4 and 5 show a third embodiment of the invention in various applications
    Fig. 6 shows an antenna array implemented by the devices according to the invention
    Figure 7 illustrates an arrangement implemented by the devices according to the invention
    Figure 8 shows a second embodiment of the device according to the invention
    Figure 1 illustrates the inventive principle of operation. The incoming signal (4) is received by the signal receiving portion (1), passed over the obstacle by the signal transfer portion (3), and repeated (5) by the signal irradiating portion (2). If the distance to be transferred is short, the actual signal transmitting portion (3) is not required.
    Figure 1 also shows a general embodiment of the invention in which the signal receiving portion (1) is implemented as a planar aperture antenna, as well as the signal re-irradiating portion (2). Said planar aperture antenna is formed such that there is an aperture (7) between antenna portions (6) made of conductive material, which opens in the direction of the signal propagation (4 and 5). The figure shows that the opening angle of the aperture (7) changes with respect to the direction of travel (4 and 5) of the signal. Between said signal receiving portion (1) and the signal re-irradiating portion (2) there is a signal transfer portion (3) implemented as two parallel conductors (8) with a gap (9) between them. The connections between the signal receiving portion (1), the signal transfer portion (3) and the signal re-irradiating portion (2) are infinitely variable and without separate connections - that is, can be made as a single unit. The invention operates in both directions, i.e. the same device can reproduce a signal from either side to the other.
    Figure 2 shows an embodiment of the invention in which the antenna parts (6) are made inside a support material (10) of dielectric material. Also, the gap (7) between the antenna parts (6) is filled with a dielectric support material (10). In this embodiment, the antenna parts (6) can be, for example, stamped from a thin metal plate and the supporting material (10) can be, for example, a molded cellular plastic. The support material (10) may also be narrower at the signal transmitting portion (3). Such an embodiment can be installed in a narrow slot, for example, in a window frame during window installation, or integrated into a building material already during the manufacturing of a building material, such as a window.
    The low bandwidth of the broadband operating range depends mainly on the largest dimension of the antenna aperture (7). Below this lower frequency, a narrow band pass band resulting from the lowest resonance of the entire antenna structure is obtained. This resonant frequency band can be lowered if necessary by extending the electrical length of the structure. Figure 3 illustrates an embodiment of the invention in which the electrical length of the device is increased by making bends in the signal-transmitting portion (3). This is because the structure of the device is resonant at a certain signal frequency, whereby it radiates in both the upstream (4) and the downstream (5) direction.
    In the embodiment of the invention shown in Figure 4, the signal transmitting portion (3) is bent. The device according to the invention can be shaped to fit, for example, a window frame.
    In the embodiment of Fig. 5, the signal can be directed to shadows, for example, behind a corner. This problem is exacerbated by shorter wavelengths. The solution is to design the signal transmitting portion (3) such that the signal travel direction (5) after the device is different than when the signal travel direction (4) encounters the device. The embodiment can be used as a retrofit, for example as a sticker, or it can be integrated into a building material, such as an angle collision guard, railing structure or signboard.
    Figure 6 shows an antenna array formed by three devices according to the invention.
    An antenna array may comprise two or more devices according to the invention. When mounted vertically, the radiation pattern produced by the antenna array is reduced in the vertical plane and the gain of the antenna array increases. The antenna array may be fabricated either on separate support materials (10) or on the same support material.
    Figure 7 shows an arrangement in which the devices according to the invention are in different directions with respect to each other. Since a single device reproduces only a signal polarized in a particular direction, an arrangement can reproduce a signal polarized in several directions. In the arrangement shown in Fig. 7, the devices are fixed to each other and to the window frame (11), but the devices of the arrangement may be physically located in different locations.
    Fig. 8 shows an arrangement in which the devices according to the invention are in different directions relative to one another and connected centrally to a single support structure (10). The arrangement according to Fig. 8 can be made, for example, to be installed in an air-conditioning pipe (12) or integrated therein at the manufacturing stage.
    Possible embodiments of the invention are not limited to the foregoing, but solutions prepared in different ways and shaped in different ways may be applicable to the situation and the invention may be modified within the scope of the appended claims. For example, made of a thin film, the device can be shaped very freely and rotated to a position other than that shown in the figures.
    权利要求:
    Claims (15)
    [1]
    An apparatus for receiving and re-irradiating an electromagnetic signal, characterized in that the signal receiving portion and the signal re-irradiating portion of the apparatus are implemented as a planar aperture antenna.
    [2]
    Device according to claim 1, characterized in that said signal receiving portion and the signal re-irradiating portion are so-called. Vivaldityyppisiä.
    [3]
    A device according to any one of claims 1 to 2, characterized in that the opening opening angle of said signal receiving portion decreases in the direction of the signal propagation path and the opening opening angle of said signal re-irradiating portion increases in the direction of the signal propagation path.
    [4]
    A device according to any one of claims 1 to 3, characterized in that there is a signal transfer portion between said signal receiving portion and said signal re-irradiating portion.
    [5]
    A device according to claim 4, characterized in that said signal transmitting portion consists of two parallel conductors and a gap between them.
    [6]
    Device according to one of Claims 4 to 5, characterized in that said signal transmitting portion is made to be meandering.
    [7]
    Device according to one of Claims 1 to 6, characterized in that the transitions between said signal receiving, signal transmitting and re-irradiating portions are carried out in a substantially continuous and interrupted manner.
    [8]
    Device according to one of Claims 1 to 7, characterized in that the device is made of two parts made of two conductive materials, such that the gap between said parts opens in the direction of receiving the signal and transmitting the signal.
    [9]
    A device according to any one of claims 1 to 8, characterized in that, in addition to said signal receiving portion, signal transfer portion and signal re-radiation portion, the device includes a support structure of electrically insulating material.
    [10]
    A device according to claim 9, characterized in that said signal receiving portion, signal transmitting portion and signal re-irradiating portion
    5 are within said support material.
    [11]
    Device according to one of Claims 1 to 10, characterized in that the device is adapted for installation in a building material.
    [12]
    12. An arrangement for receiving and re-irradiating an electromagnetic signal, characterized in that the arrangement comprises two or more
    A device according to claims 1-10.
    [13]
    An arrangement according to claim 12, characterized in that said devices are arranged substantially on top of one another.
    [14]
    Arrangement according to one of Claims 12 to 13, characterized in that said devices are arranged at different angles to each other.
    [15]
    15. A building material, characterized in that it comprises at least one device according to any one of claims 1 to 11.
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    US10892547B2|2015-07-07|2021-01-12|Cohere Technologies, Inc.|Inconspicuous multi-directional antenna system configured for multiple polarization modes|
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    法律状态:
    2019-02-11| PC| Transfer of assignment of patent|Owner name: ANTENNIUM OY |
    2021-05-31| FG| Patent granted|Ref document number: 129032 Country of ref document: FI Kind code of ref document: B |
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