EP1384287B1 - Anordnung zur erregung einer zentralfokussierten reflektorantenne - Google Patents

Anordnung zur erregung einer zentralfokussierten reflektorantenne Download PDF

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Publication number
EP1384287B1
EP1384287B1 EP02735053A EP02735053A EP1384287B1 EP 1384287 B1 EP1384287 B1 EP 1384287B1 EP 02735053 A EP02735053 A EP 02735053A EP 02735053 A EP02735053 A EP 02735053A EP 1384287 B1 EP1384287 B1 EP 1384287B1
Authority
EP
European Patent Office
Prior art keywords
dielectric
arrangement
waveguide
field transformer
reflector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02735053A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1384287A1 (de
Inventor
Frank E. Wötzel
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1384287A1 publication Critical patent/EP1384287A1/de
Application granted granted Critical
Publication of EP1384287B1 publication Critical patent/EP1384287B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces

Definitions

  • the invention relates to an arrangement for exciting a centrally focused reflector antenna.
  • the application of the arrangement extends to the areas of aging Communication technology for stationary, portable and mobile transceiver systems high-frequency electromagnetic radiation sources, especially of geostationary and orbiting satellite systems at landund mobile sources as well as point-to-point radio relay transmission or the point-to-multipoint radio relay transmission of security, radar and non-contact sensor technology.
  • Known arrangements for excitation of a centrally focused reflector antenna system use either a grooved horn or a flat-widened waveguide section as the excitation system at the waveguide end.
  • the excitation system is arranged in the focal point, the phase center, the reflector antenna and is intended to illuminate it optimally. Of particular importance is the largely uniform illumination of the reflector with uniform phase assignment.
  • Known arrangements for the purpose of excitation of a reflector antenna system and its beam swiveling use an excitation system in the focal point of the reflector antenna or in the vicinity of the focal point arranged excitation system, which consists of discrete single radiators (ARRAY) or a combination of such an array, which is excited by another system becomes.
  • ARRAY discrete single radiators
  • the required sealing is due to the structural conditions of the waveguide system against environmental influences only by additional and to achieve complex components, which may be the Functionality of the excitation system can also affect.
  • the known excitation systems with non-reactive Subsequent modules, for example down-converters can be combined. That means there are generally additional expenses for optimal Adaptation of such a known excitation system to the subsequent assembly the associated costs required.
  • the object of the invention is therefore to provide an inexpensive arrangement field-optimized and broadband excitation of centrally focused reflector antennas in their focus, the phase center, with simultaneous non-reactive Connection with subsequent assemblies and improved environmental sealing of the Provide waveguide and adaptation of the excitation system to the respective To ensure reflector geometry (F / D ratio) and thus the Design of the radiation diagram with the functionality of changing the Field distribution at the waveguide end specific to the reflector system of the shape above to influence that no retroactive effect in the Hohiletter and thus on the Follower assembly is caused.
  • the arrangement according to the invention has the particular advantage that that field-optimized and broadband excitation is more centrally focused Reflector antennas in their focal point is guaranteed by the dielectric field transformers are not mechanically moved Components required.
  • the overall arrangement is highly mechanical Precision can be manufactured inexpensively with little effort and points beyond also a high tolerance towards different Environmental conditions such as temperature, humidity and aggressive media.
  • the arrangement of a dielectric carrier in the vicinity of the dielectric field transformer and the Arrangement of passive, easy to control spotlight components on the dielectric carrier a loss and field-optimal change in the broadband Excitation field of the field transformer possible without mechanical moving components are required and without the dielectric support must be mechanically connected to the field transformer.
  • the arrangement according to the invention consists of a butt-terminating waveguide 1, which is terminated on one side with a dielectric field transformer 2, which partially protrudes into the waveguide 2 and whose geometry is based on the reflector system used. -corresponds or is adapted to this.
  • the waveguide 1 has at its other end a mounting platform 3 for subsequent assemblies 8.
  • the dielectric field transformer 2 influences the E components of the alternating electromagnetic field in the direction of propagation in such a way that the original wave field at the other end of the waveguide 1 is deformed in such a way that a uniform, in particular circular expansion of the resulting radiation field of the waveguide 1 and a selectable power distribution on the reflector can be achieved. This causes a drastic increase in the efficiency of the entire arrangement.
  • a preferred embodiment of the arrangement according to the invention provides the subsequent assembly 8 is not mechanically rigid with the waveguide 1 and Assembly platform 3 to connect, but rather rotatable and mechanically fixable to arrange the axis of symmetry of the reflector 6. This is combined with the special advantage that if all are retained Functionalities of the system without changing the position of the whole Antenna arrangement, in particular the reflector 6, any Polarization rotations In relation to the orthogonal arrangement of H / E vector to the normal plane of the earth - here in particular the so-called skew angle - compensate by rotating the subsequent assembly 8.
  • the dielectric field transformer 2 also has the advantage that that for a wide range, the field influence is almost is uniform and at the same time a transformation of the waveguide wave mode in the free space mode is realized, making the arrangement more dielectric Field transformer 2 / waveguide 1 without repercussions on a subsequent system can be connected.
  • FIG. 3 shows an arrangement according to the invention with the holder 4 shown here folded in for the accommodation of a reflector, the dielectric field transformer 2 and the mounting platform 3 provided for subsequent modules.
  • FIG. 4 shows the rear view of this arrangement in which the mounting platform 3 is designed as an equilateral triangular surface 5 in order to minimize shadowing in the mirror.
  • FIG. 5 shows the arrangement according to the invention with the reflector mounted.
  • the subreflector with a circular aperture 6 is mounted on the brackets 4 by means of the supports 7.
  • the subsequent assemblies 8 are fastened to the assembly platform 3 by means of a screw connection.
  • the arrangement according to the invention is positioned in the axis of rotation of the reflector 6 and with the dielectric field transformer 2 at the level of the focal point of the reflector 6.
  • a carrier board 9 is arranged in the vicinity of the dielectric field transformer 2 by means of screwed-on spacers 11.
  • the dielectric carrier board 9 has a bore 12 with a diameter suitable for the dielectric field transformer 2 at the location of the field transformer 2 and is arranged plane-parallel to the mounting platform 3 without a direct mechanical or electrical connection to the dielectric field transformer 2.
  • the dielectric carrier board 9, on which the passive radiator components and switching elements 10 are arranged, has the effect that the source field originating from the dielectric field transformer 2 is only slightly influenced, due to the openings in the dielectric carrier board 9, with the result that the penetrating one Field and thus the entire antenna arrangement are only slightly attenuated and thus extremely high efficiency is still available.
  • a further advantage of this embodiment of the arrangement is that simple mechanical arrangement options for different antenna arrangements allow both the optimum illumination and thus the high efficiency of the entire antenna arrangement to be achieved while at the same time influencing the radiation characteristic, which in particular leads to a significant reduction in the necessary reflector area 6 leads conventional beam swiveling systems.
  • FIG. 6 shows the dielectric carrier 9 in a top view. This is fastened to the mounting platform 3 with the screwable spacers 11.
  • the dielectric carrier 9 contains in its center a circular bore 12, the diameter of which corresponds to the dielectric field transformer 2.
  • Parasitic (passive) radiators with switching components 10 are arranged around the bore 12 of the dielectric carrier 9. In FIG. 6 , these are arranged, for example, in a uniform distribution at an angle of 90 ° in each case, the elements each consisting of a pair of radiators which are positioned orthogonally to one another.
  • a control block 13, consisting of standard components, is arranged on the dielectric carrier 9 and takes over the control of the switching components. The control block is connected with a cable 14 to further subsequent assemblies.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP02735053A 2001-04-21 2002-04-19 Anordnung zur erregung einer zentralfokussierten reflektorantenne Expired - Lifetime EP1384287B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20107294U DE20107294U1 (de) 2001-04-21 2001-04-21 Anordnung zur Erregung einer zentralfokussierten Reflektorantenne
DE20107294U 2001-04-21
PCT/DE2002/001511 WO2002087018A1 (de) 2001-04-21 2002-04-19 Anordnung zur erregung einer zentralfokussierten reflektorantenne

Publications (2)

Publication Number Publication Date
EP1384287A1 EP1384287A1 (de) 2004-01-28
EP1384287B1 true EP1384287B1 (de) 2004-08-04

Family

ID=7956297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02735053A Expired - Lifetime EP1384287B1 (de) 2001-04-21 2002-04-19 Anordnung zur erregung einer zentralfokussierten reflektorantenne

Country Status (15)

Country Link
US (1) US6876335B2 (enExample)
EP (1) EP1384287B1 (enExample)
JP (1) JP2004527178A (enExample)
KR (1) KR100896113B1 (enExample)
CN (1) CN100376059C (enExample)
AT (1) ATE272902T1 (enExample)
CA (1) CA2444948C (enExample)
DE (3) DE20107294U1 (enExample)
DK (1) DK1384287T3 (enExample)
ES (1) ES2225791T3 (enExample)
HR (1) HRP20030859B1 (enExample)
IL (2) IL158492A0 (enExample)
NO (1) NO326863B1 (enExample)
PT (1) PT1384287E (enExample)
WO (1) WO2002087018A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007707A1 (de) 2007-02-13 2008-08-21 Häßner, Katrin Anordnung zur Beeinflussung der Strahlungscharakteristik einer Reflektorantenne, insbesondere einer zentral fokussierten Reflektorantenne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7301504B2 (en) 2004-07-14 2007-11-27 Ems Technologies, Inc. Mechanical scanning feed assembly for a spherical lens antenna
CN110739551B (zh) * 2019-10-29 2021-09-28 Oppo广东移动通信有限公司 阵列透镜、透镜天线和电子设备
EP4428502A1 (de) * 2023-03-07 2024-09-11 VEGA Grieshaber KG Hohlleiter bestehend aus zwei halbschalen

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US451969A (en) * 1891-05-12 Lock-hinge
US91371A (en) * 1869-06-15 Improvement in fur collars
US684952A (en) * 1899-02-27 1901-10-22 Us Electric Signal Company Street-railway signaling system.
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US4274097A (en) * 1975-03-25 1981-06-16 The United States Of America As Represented By The Secretary Of The Navy Embedded dielectric rod antenna
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FI912234A0 (fi) 1988-11-14 1991-05-08 Motson & Co Ltd Mottagningsanordning foer mikrovaogssignaler.
EP0527569A1 (en) 1991-07-29 1993-02-17 Gec-Marconi Limited Microwave antenna
DE4223138A1 (de) 1991-12-21 1993-06-24 Telefunken Systemtechnik Doppelreflektorantenne
US5451969A (en) * 1993-03-22 1995-09-19 Raytheon Company Dual polarized dual band antenna
US5812096A (en) * 1995-10-10 1998-09-22 Hughes Electronics Corporation Multiple-satellite receive antenna with siamese feedhorn
GB2314688A (en) 1996-06-26 1998-01-07 Marconi Gec Ltd Hollow waveguide antenna
EP0859427B1 (en) * 1997-02-14 2006-06-21 Andrew A.G. Dual-reflector microwave antenna
US6091371A (en) * 1997-10-03 2000-07-18 Motorola, Inc. Electronic scanning reflector antenna and method for using same
GB9811850D0 (en) * 1998-06-02 1998-07-29 Cambridge Ind Ltd Antenna feeds
US6047718A (en) * 1999-04-01 2000-04-11 Emersonelectric Co. Solenoid valve having coaxial armatures in a single coil design

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007707A1 (de) 2007-02-13 2008-08-21 Häßner, Katrin Anordnung zur Beeinflussung der Strahlungscharakteristik einer Reflektorantenne, insbesondere einer zentral fokussierten Reflektorantenne
WO2008098570A1 (de) 2007-02-13 2008-08-21 Häßner, Katrin Anordnung zur beeinflussung der strahlungscharakteristik einer reflektorantenne, insbesondere einer zentralfokussierten reflektorantenne

Also Published As

Publication number Publication date
DE20107294U1 (de) 2001-08-23
KR20040004593A (ko) 2004-01-13
ATE272902T1 (de) 2004-08-15
NO20034685L (no) 2003-11-28
NO20034685D0 (no) 2003-10-20
CA2444948C (en) 2010-03-16
CN1520630A (zh) 2004-08-11
PT1384287E (pt) 2004-11-30
EP1384287A1 (de) 2004-01-28
CN100376059C (zh) 2008-03-19
DE10291770D2 (en) 2004-04-15
JP2004527178A (ja) 2004-09-02
HRP20030859A2 (en) 2005-08-31
DK1384287T3 (da) 2004-11-22
HRP20030859B1 (en) 2008-04-30
IL158492A (en) 2009-08-03
WO2002087018A1 (de) 2002-10-31
KR100896113B1 (ko) 2009-05-07
DE50200764D1 (de) 2004-09-09
NO326863B1 (no) 2009-03-02
US6876335B2 (en) 2005-04-05
US20040130498A1 (en) 2004-07-08
ES2225791T3 (es) 2005-03-16
IL158492A0 (en) 2004-05-12
CA2444948A1 (en) 2002-10-31

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