EP0903806A3 - Quasi-optical filter and antenna arrangement with such a filter - Google Patents

Quasi-optical filter and antenna arrangement with such a filter Download PDF

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Publication number
EP0903806A3
EP0903806A3 EP98113850A EP98113850A EP0903806A3 EP 0903806 A3 EP0903806 A3 EP 0903806A3 EP 98113850 A EP98113850 A EP 98113850A EP 98113850 A EP98113850 A EP 98113850A EP 0903806 A3 EP0903806 A3 EP 0903806A3
Authority
EP
European Patent Office
Prior art keywords
filter
quasi
antenna arrangement
energy
harmonic
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.)
Withdrawn
Application number
EP98113850A
Other languages
German (de)
French (fr)
Other versions
EP0903806A2 (en
Inventor
Gerhard Friedsam
Ralph Rasshofer
Erwin Dr. Biebl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spinner GmbH
Original Assignee
Spinner GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Spinner GmbH filed Critical Spinner GmbH
Publication of EP0903806A2 publication Critical patent/EP0903806A2/en
Publication of EP0903806A3 publication Critical patent/EP0903806A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/23—Combinations of reflecting surfaces with refracting or diffracting devices
    • 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
    • H01Q19/06—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 refracting or diffracting devices, e.g. lens
    • H01Q19/08—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 refracting or diffracting devices, e.g. lens for modifying the radiation pattern of a radiating horn in which it is located

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

Ein quasioptisches Oberwellenfilter für sich unter Freiraumbedingungen ausbreitende HF-Energie besteht aus einer Filterplatte aus einer Anzahl von Schichten (1,2) aus Stoffen, deren Dielektrizitätszahlen und deren Dicken (d1,d2) so gewählt sind, daß das Filter für HF-Energie mit der Frequenz der Grundwelle einen möglichst hohen Transmissionsfaktor und für HF-Energie mit der Frequenz mindestens der ersten Oberwelle einen hohen Reflexionsfaktor hat. Die Oberfläche der Schichten (1,2;21,22) können planar oder Ausschnitte der Oberflächen von Kugeln oder von Ellipsoiden bilden bzw. integraler Bestandteil (4) einer dielektrischen Linse (5) sein. Das Filter kann auch in einer Antennenanordnung in Verbindung mit einem Absorber für die Oberwelle verwendet werden.

Figure 00000001
A quasi-optical harmonic filter for HF energy propagating under free space conditions consists of a filter plate made of a number of layers (1,2) made of substances, the dielectric constant and the thickness (d1, d2) of which are selected such that the filter for HF energy is also used the frequency of the fundamental wave has the highest possible transmission factor and for RF energy with the frequency of at least the first harmonic has a high reflection factor. The surface of the layers (1, 2; 21, 22) can be planar or form cutouts of the surfaces of spheres or ellipsoids or can be an integral part (4) of a dielectric lens (5). The filter can also be used in an antenna arrangement in connection with an absorber for the harmonic wave.
Figure 00000001
EP98113850A 1997-07-29 1998-07-24 Quasi-optical filter and antenna arrangement with such a filter Withdrawn EP0903806A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997132569 DE19732569A1 (en) 1997-07-29 1997-07-29 Quasi-optical harmonic wave filter for HF signal generation
DE19732569 1997-07-29

Publications (2)

Publication Number Publication Date
EP0903806A2 EP0903806A2 (en) 1999-03-24
EP0903806A3 true EP0903806A3 (en) 1999-03-31

Family

ID=7837215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113850A Withdrawn EP0903806A3 (en) 1997-07-29 1998-07-24 Quasi-optical filter and antenna arrangement with such a filter

Country Status (2)

Country Link
EP (1) EP0903806A3 (en)
DE (1) DE19732569A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698001A (en) * 1969-11-11 1972-10-10 Nippon Telegraph & Telephone Frequency group separation filter device using laminated dielectric slab-shaped elements
US3842421A (en) * 1973-02-15 1974-10-15 Philco Ford Corp Multiple band frequency selective reflectors
US4343002A (en) * 1980-09-08 1982-08-03 Ford Aerospace & Communications Corporation Paraboloidal reflector spatial filter
DE3601553A1 (en) * 1986-01-21 1987-07-23 Licentia Gmbh Arrangement for the distribution of extremely high frequency energy
US4864321A (en) * 1984-08-20 1989-09-05 Radant Technologies, Inc. Electromagnetic energy shield
US5455594A (en) * 1992-07-16 1995-10-03 Conductus, Inc. Internal thermal isolation layer for array antenna
US5471180A (en) * 1991-02-15 1995-11-28 Lockheed Sanders, Inc. Low-loss dielectric resonant devices having lattice structures with elongated resonant defects
US5563614A (en) * 1989-12-19 1996-10-08 Her Majesty In Right Of Canada, As Represented By The Minister Of Communications Low noise dual polarization electromagnetic power reception and conversion system
DE19607934C1 (en) * 1996-03-01 1997-07-10 Daimler Benz Aerospace Ag Reflector for two different frequency ranges

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121584A1 (en) * 1991-06-29 1993-01-21 Messerschmitt Boelkow Blohm Camouflaging and strong elimination of radar radiation in inlet of drive - includes impinging radar radiation in inlet duct using divergent tube and associated mode converter

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698001A (en) * 1969-11-11 1972-10-10 Nippon Telegraph & Telephone Frequency group separation filter device using laminated dielectric slab-shaped elements
US3842421A (en) * 1973-02-15 1974-10-15 Philco Ford Corp Multiple band frequency selective reflectors
US4343002A (en) * 1980-09-08 1982-08-03 Ford Aerospace & Communications Corporation Paraboloidal reflector spatial filter
US4864321A (en) * 1984-08-20 1989-09-05 Radant Technologies, Inc. Electromagnetic energy shield
DE3601553A1 (en) * 1986-01-21 1987-07-23 Licentia Gmbh Arrangement for the distribution of extremely high frequency energy
US5563614A (en) * 1989-12-19 1996-10-08 Her Majesty In Right Of Canada, As Represented By The Minister Of Communications Low noise dual polarization electromagnetic power reception and conversion system
US5471180A (en) * 1991-02-15 1995-11-28 Lockheed Sanders, Inc. Low-loss dielectric resonant devices having lattice structures with elongated resonant defects
US5455594A (en) * 1992-07-16 1995-10-03 Conductus, Inc. Internal thermal isolation layer for array antenna
DE19607934C1 (en) * 1996-03-01 1997-07-10 Daimler Benz Aerospace Ag Reflector for two different frequency ranges

Also Published As

Publication number Publication date
DE19732569A1 (en) 1999-02-18
EP0903806A2 (en) 1999-03-24

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