• 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:
    1393081 Aerials HAZELTINE CORP 21 Feb 1974 [25 June 1973] 7847/74 Heading H4A An aerial system comprises one or more radiating elements linearly polarized in a particular direction, such as the array of dipoles 10, arranged in rows and columns, shown in Fig. 1, a reflector made up of conductive columns 11 with interspersed collinear arrays 12 of tuned elements 13, said columns and said arrays being parallel to the direction of polarization, and supporting means for said radiating elements, columns and arrays. The purpose of the collinear arrays 12 of tuned reflective elements is to suppress radiation leakage between the reflective columns 11. In the ease of a planar reflector, back lobe formation is thereby largely prevented (Fig. 4, not shown). As described, the supporting means comprises a frame 14, between two opposite sides of which the columns 11 and the arrays 12 extend, the spacing between adjacent columns being less than one wavelength at the operating frequency of the system. The dipoles 10 are mounted on the columns 11 and are fed by cables which run therein, Fig. 2, not shown. The reflective elements 13 may be lengths of conductive tube mounted on insulating rods and a protective outer tube of insulating material may be provided (Figs. 3a, 3c, not shown). The lengths of, and the spacings between, said reflective elements are made such that each element is effectively a half-wavelength long at the operating frequency of the system. To this end, fixed capacitors may be provided between adjacent reflective elements (Fig. 3b, not shown), of the arrays.
    公开号:SU814289A3
    申请号:SU742037857
    申请日:1974-06-24
    公开日:1981-03-15
    发明作者:А.Вилер Гарольд
    申请人:Хэзелтайн Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to antenna technology.
    A known antenna system containing a flat reflective surface, g made in the form of a lattice of conductive columns, the distance between which is less than the wavelength, linearly polarized dipole emitters mounted in parallel on the conductive columns, power transmission lines and a supporting structure for mounting linearly polarized dipole emitters and conductive columns [1].
    However, in this antenna system, a significant portion of the incident radiation passes through a flat reflective surface.
    The purpose of the invention is to reduce the passage of incident radiation through a flat reflective surface.
    To do this, in an antenna system containing a flat reflective surface made in the form of a lattice of conductive columns, the distance between which is less than the wavelength, linearly polarized dipole emitters mounted in parallel on the conductive columns, power transmission lines and a supporting structure for mounting linearly polarized dipole emitters and conductive columns, between the conductive columns parallel to them on the supporting structure installed additional lattice of passive reflectors made in ideally selectively tuned elements, each of which is less than half the wavelength.
    In addition, an additional lattice of passive reflectors is made in the form of selectively tuned elements arranged in one line, adjustable by changing the distance between them along their axis. ·.
    Energy transfer lines to linearly polarized dipole emitters are located inside the conductive columns to which linearly polarized dipole emitters are attached.
    Each additional array of passive reflectors is located at an equal distance from the two conductive columns closest to it.
    Each additional lattice of passive reflectors is made in the form of many conductive tubular elements mounted on the introduced columns of insulating material.
    In FIG. 1 shows the design of the antenna system; in FIG. 2 - construction of a linearly polarized dipole emitter and a conductive column; Fig. 3 - design of an additional lattice of passive reflectors; in FIG. 4 are diagrams explaining the operation of the antenna system.
    The antenna system contains a flat reflective surface made in the form of an equivalent array of conductive columns 1, the distance between which is less than the wavelength, linearly polarized dipole emitters 2 mounted in parallel on the conductive columns 1, power transmission lines 3, supporting structure 4 for mounting linearly polarized dipole emitters 2 and conductive columns 1 and mounted on a supporting structure 4 between the conductive columns 1 parallel to them, a lattice 5 of passive reflectors 6 made in de selectively tuned elements, the length of each of which is less than half the wavelength, and the lattice 5 of the passive reflectors 6 is made in the form of selectively tuned elements arranged in one line, adjustable by changing the distance between them along their axis; power transmission lines 3 to linearly polarized dipole emitters 2 are located inside the conductive columns 1 to which linearly polarized dipole emitters 2 are attached; each lattice 5 of the passive reflectors b is located at an equal distance from the two conductive columns 1 closest to it, and is made in the form of a plurality of conductive tubular elements mounted on the columns 7 - of insulating material.
    The antenna system works as follows.
    In the absence of gratings 5 from the passive reflectors 6, the energy of electromagnetic waves emitted by linearly polarized dipole Emitters 2 would have to partially reflect and partially pass through the grating of the conducting columns 1. The gratings 5 of the passive reflectors 6 are designed so that the secondary radiation from the passive reflectors 6 equal in amplitude to electromagnetic vibrations passing through the grating of the conducting columns 1. The position of the gratings 5 from the passive reflectors 6 is chosen so that the phase of the secondary radiation from ssivnyh reflectors '6 is opposite to the phase of electromagnetic waves passing through the lattice of conductive columns 1. The secondary radiation from arrays of passive reflectors 5 6 interferes with the electromagnetic waves passing through the bars' conductive columns 1 and causes considerable attenuation of the leakage electromagnetic energy signals. The amplitude and phase of the secondary radiation of the gratings 5 from the passive reflectors b can be adjusted so as to prevent or significantly reduce the leakage of energy, electromagnetic waves in a certain direction.
    As shown in FIG. 4, without the use of gratings 5 of the passive reflectors 6, linearly polarized dipole emitters 2, when electromagnetic waves of the same phase are applied to them, form the main lobe 8 of the radiation pattern perpendicular to the plane of the gratings of the conducting columns 1. The leakage of energy of electromagnetic waves through this grating causes an appearance in the direction opposite to the direction of the main lobe 8, the rear lobe 9, which is significant compared to the main lobe 8. The use of grids 5 from the pass ivnyh reflectors reduces the leakage radiation B through the bars of conductive columns 1, while the rear tab 10 is formed has a relatively small amplitude compared to the main lobe 8.
    The experiments showed that the back lobe of the antenna system without using the arrays 5 of the passive reflectors 6 is only 13 dB lower than the main lobe, and with their use by 35 dB,
    权利要求:
    Claims (5)
    [1]
    The invention relates to antenna technology. A known antenna system comprising a flat reflecting surface made in the form of a grid of conductive columns, the distance between which is less than the wavelength, linearly polarized dipole radiators mounted in parallel on the conductive columns, power transmission lines and a supporting structure for attaching linearly polarized dipole emitters and conductive columns. However, in this antenna system, a significant portion of the incident radiation passes through a flat reflective surface. The purpose of the invention is to reduce the passage of incident radiation through a flat reflective surface. To do this, in an antenna system containing a flat reflective surface made in the form of a grid of conductive columns, the distance between which is less than the wavelength, linearly polarized dipole radiators mounted in parallel on the conductive columns, power transmission lines and a supporting structure for mounting linearly polarized dipole emitters and conductive columns, between the conductive columns parallel to them on the supporting structure there are additional grids of passive reflectors made in the form of selectively tuned elements, the length of each of which is less than half the wavelength. In addition, an additional array of passive reflectors is made in the form of selectively tuned elements arranged in a single line, adjustable by varying the distance between them along their axis. Power transmission lines to linearly polarized dipole emitters are located inside conductive columns, and linearly polarized dipole emitters are attached to KotopbiM. Each additional array of passive reflectors is located at an equal distance from the two conducting columns closest to it. Each additional grid of passive reflectors is made in the form of a set of conductive tubular elements mounted on the introduced columns of insulating material. FIG. 1 shows the antenna system design; in fig. 2 shows the design of a linearly polarized dipole radiator and a conducting column; FIG. 3 shows the construction of an additional array of passive reflectors; “And FIG. 4 - diagrams explaining the operation of the antenna system. The antenna system contains a flat reflective surface, made in the form of an equivalent array of conductive columns 1, the distance between which is less than the wavelength, linearly polarized dipole radiators 2, mounted parallel to the conductive columns 1, power transmission lines 3, supporting structure 4 for fastening linearly polarized dipole emitters 2 and conducting columns 1 and mounted on the supporting structure 4 between conducting columns 1 in parallel to one bars 5 of passive reflectors 6, made in the form of selectively tuned elements, the length of each of which is less than half the wavelength, and the grid 5 of passive reflectors 6 is made in the form of selectively tuned elements arranged in a single line, adjustable by changing the distance between them along their axis ; power transmission lines 3 to linearly polarized dipole emitters 2 are located inside conductive columns 1 to which linearly polarized dipole emitters 2 are attached; Each grid 5 of passive reflectors b is located at an equal distance from the two conducting columns 1 closest to it, and is made as a set of conducting tubular elements mounted on columns 7 of insulating material. Antenna system works as follows. In the absence of gratings 5 from passive reflectors 6, the energy of electromagnetic oscillations emitted by linearly polarized dipole radiators 2 would have partially reflected and partially passed through the grid of conductive columns 1. Gratings 5 from passive reflectors 6 were designed so that secondary radiation from passive reflectors b are equal in amplitude to electromagnetic oscillations passing through the grating of conductive columns 1. The position of gratings 5 from passive reflectors 6 is chosen so that the secondary radiation phase from assivnyh reflectors b opposite to the phase of electromagnetic waves passing through the lattice of conductive columns 1. The secondary radiation from arrays of passive reflectors 5 b interferes with electromagnetic wobbles extending through the lattice of conductive columns 1 and causes considerable attenuation of the leakage electromagnetic energy signals. The amplitude and phase of the secondary radiation of the gratings 5 from the passive reflectors b can be adjusted so as to prevent or significantly weaken the leakage of energy, electromagnetic oscillations in a certain direction. As shown in FIG. 4, without using arrays 5 of passive reflectors b, linearly polarized dipole radiators 2, when electromagnetic oscillations of the same phase are applied to them, form the main lobe 8 of the radiation pattern perpendicular to the plane of the conducting column arrays 1. The leakage of electromagnetic energy through this lattice causes opposite the direction of the main lobe 8, the back lobe 9, which is significant compared to the main lobe 8. The use of gratings 5 of b, reduces the leakage of radiation through the grating of conductive columns 1, while the rear lobe 10 formed has a relatively small amplitude compared to the main lobe 8. Experiments have shown that the back lobe of the antenna pattern of the passive reflectors b is only 13 dB below the main lobe, and with their use by 35 dB. Claim 1. Antenna system comprising a flat reflective surface made in the form of a grid of conductive columns, the distance between which is less than the wavelength, linearly polarized dipole radiators mounted in parallel on the conductive columns, power transmission lines and a supporting structure for mounting linearly polarized dipole emitters and conductive columns, characterized in that, in order to reduce the passage of incident radiation through a flat reflective surface, between the wires their columns parallel to the supporting structure installed additional reschetki of passive reflectors are designed as elements selectively configured, the length of each of which is less than half a wavelength.
    [2]
    2. The antenna system of claim 1, characterized in that the additional array of passive OTpaxaTeJieft is designed as one-line selectively tuned elements, adjustable ways of varying the distance between them along their axis.
    [3]
    3. Antenna system according to p. 1, which differs from the fact that the power transmission lines to linearly polarized dipole radiators are located inside conductive columns to which linearly polarized dipole radiators are attached.
    [4]
    4. The antenna system of Claims 1 to 3, wherein each additional array of passive reflectors is located at an equal distance from the two conductive columns closest to it,
    [5]
    5.Antenna system PP. 1-4, characterized in that each additional array of passive reflectors is made up of a plurality of conductive tubular elements mounted on the inserted columns of insulating material.
    five
    Information sources taken into account in the examination
    1. The patent of the Federal Republic of Germany 881533, cl. 21 a 4, 46/02, published 1953.
    Phie 1
    fig g
    类似技术:
    公开号 | 公开日 | 专利标题
    SU814289A3|1981-03-15|Antenna system
    US3541559A|1970-11-17|Antenna for producing circular polarization over wide angles
    US5039994A|1991-08-13|Dipole arrays
    US3394378A|1968-07-23|Multiple reflector multiple frequency band antenna system
    US4479128A|1984-10-23|Polarization means for generating circularly polarized electro-magnetic waves
    GB2245766A|1992-01-08|Interleaved helix antenna arrays
    US3757343A|1973-09-04|Slot antenna array
    US2870444A|1959-01-20|Radiating systems
    GB2130804A|1984-06-06|Dual reflector antenna system
    US5581265A|1996-12-03|Reflector antenna assembly for dual linear polarization
    US4901086A|1990-02-13|Lens/polarizer radome
    US2591486A|1952-04-01|Electromagnetic horn antenna
    US4005433A|1977-01-25|Small wavelength high efficiency antenna
    JP2000341030A|2000-12-08|Waveguide array antenna system
    US4516132A|1985-05-07|Antenna with a reflector of open construction
    US4250509A|1981-02-10|Circularly polarized zigzag antenna
    US3277490A|1966-10-04|Broadband conical scan feed for parabolic antennas
    EP0310414B1|1994-06-01|Lens/polarizer/radome
    US4435714A|1984-03-06|Grating lobe eliminator
    JP4161530B2|2008-10-08|Dual frequency array antenna
    JP3462102B2|2003-11-05|Array antenna
    US2605419A|1952-07-29|Wave guide feed for illuminating parabolic reflectors
    US3727232A|1973-04-10|Director array for antennas
    JP4080770B2|2008-04-23|Dual polarized antenna with low sidelobes
    JP2626547B2|1997-07-02|Parabolic antenna with anti-reflection wave
    同族专利:
    公开号 | 公开日
    NL7408568A|1974-12-30|
    FR2234671A1|1975-01-17|
    BR7404532D0|1975-01-21|
    IT1010296B|1977-01-10|
    DD112551A5|1975-04-12|
    FR2234671B1|1980-03-14|
    DE2427505A1|1975-01-16|
    NL183113C|1988-07-18|
    US3836977A|1974-09-17|
    GB1393081A|1975-05-07|
    JPS5034141A|1975-04-02|
    JPS63967B2|1988-01-09|
    SE7403002L|1974-12-27|
    IL44559A|1976-09-30|
    SE389769B|1976-11-15|
    IL44559D0|1974-06-30|
    AU6580674A|1975-08-21|
    PL90789B1|1977-01-31|
    NL183113B|1988-02-16|
    JPS591001B2|1984-01-10|
    DE2427505C2|1985-08-01|
    CS191234B2|1979-06-29|
    JPS50137655A|1975-10-31|
    CA1011452A|1977-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4218544A1|1992-06-05|1993-12-16|Abb Patent Gmbh|Shortwave transmitter antenna|DE480201C|1924-08-04|1929-07-30|Walter Hahnemann|Device for clearly directed sending and receiving by means of electrical waves|
    NL20462C|1925-07-06|
    FR704953A|1930-01-24|1931-05-29|Radio Ind|Wave projector|
    US2115789A|1935-06-04|1938-05-03|Telefunken Gmbh|Directional antenna system|
    NL46871C|1936-01-14|
    FR837998A|1937-05-15|1939-02-23|Lorenz C Ag|Antenna device|
    US2558727A|1942-07-01|1951-07-03|Edwin J Bernet|Antenna|
    US3836977A|1973-06-25|1974-09-17|Hazeltine Corp|Antenna system having a reflector with a substantially open construction|US3836977A|1973-06-25|1974-09-17|Hazeltine Corp|Antenna system having a reflector with a substantially open construction|
    US4186400A|1978-06-01|1980-01-29|Grumman Aerospace Corporation|Aircraft scanning antenna system with inter-element isolators|
    DE3224545A1|1982-07-01|1984-01-05|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt|GROUP ANTENNA|
    GB2135829B|1983-02-24|1986-04-09|Cossor Electronics Ltd|An antenna with a reflector of open construction|
    JPS60111503A|1983-11-21|1985-06-18|Nippon Telegr & Teleph Corp <Ntt>|Array antenna device|
    JPS60184308U|1984-05-17|1985-12-06|
    JPS60184309U|1984-05-17|1985-12-06|
    US5285212A|1992-09-18|1994-02-08|Radiation Systems, Inc.|Self-supporting columnar antenna array|
    US5606333A|1995-02-17|1997-02-25|Hazeltine Corporation|Low wind resistance antennas using cylindrical radiating and reflector units|
    US5757246A|1995-02-27|1998-05-26|Ems Technologies, Inc.|Method and apparatus for suppressing passive intermodulation|
    US5966102A|1995-12-14|1999-10-12|Ems Technologies, Inc.|Dual polarized array antenna with central polarization control|
    SE511079C2|1996-04-29|1999-08-02|Radio Design Innovation Tj Ab|Modular antenna system with a closed ring of antenna panels|
    KR100264817B1|1998-06-09|2000-09-01|박태진|Wideband microstrip dipole antenna array|
    US8121821B1|2007-12-19|2012-02-21|The United States Of America As Represented By The Secretary Of The Navy|Quasi-static design approach for low Q factor electrically small antennas|
    US8368156B1|2007-12-19|2013-02-05|The United States Of America As Represented By The Secretary Of The Navy|Dipole moment term for an electrically small antenna|
    US9281083B2|2009-04-06|2016-03-08|Terrapower, Llc|Traveling wave nuclear fission reactor, fuel assembly, and method of controlling burnup therein|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US00373203A|US3836977A|1973-06-25|1973-06-25|Antenna system having a reflector with a substantially open construction|
    [返回顶部]