[go: up one dir, main page]

DE731700C - Device for the detection of an electromagnetic, ultrashort wave reflecting object - Google Patents

Device for the detection of an electromagnetic, ultrashort wave reflecting object

Info

Publication number
DE731700C
DE731700C DET45206D DET0045206D DE731700C DE 731700 C DE731700 C DE 731700C DE T45206 D DET45206 D DE T45206D DE T0045206 D DET0045206 D DE T0045206D DE 731700 C DE731700 C DE 731700C
Authority
DE
Germany
Prior art keywords
electromagnetic
reflecting object
detection
bundling
wave reflecting
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
Application number
DET45206D
Other languages
German (de)
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DET45206D priority Critical patent/DE731700C/en
Application granted granted Critical
Publication of DE731700C publication Critical patent/DE731700C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001Crossed polarisation dual antennas

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Description

Gerät zur Ermittlung eines elektromagnetische, ultrakurze Wellen reflektierenden Gegenstandes Vorliegende Erfindung bezweckt die Ausführung eines Gerätes zur Ermittlung eines elektromagnetische, ultrakurze Wellen refllektierenden Gegenstandes, bestehend aus nebeneinander angeordnetem Sender und Empfänger, bei dem erfindungsgemäß die vor einem gen ieinsamen Reflektor oder vor mechanisch vereinigten Reflektoren angeordneten Sende-und Empfangsanteninen derart .ausgebildet sind, daß sie nur senkrecht zueinander polarisierte Strahlung bzw. Strahlungskomponenten senden bzw. empfangen.Device for detecting electromagnetic, ultrashort waves reflecting The object of the present invention is to provide a device for detection an electromagnetic ultrashort wave reflecting object, consisting of from side by side arranged transmitter and receiver, in which according to the invention the arranged in front of a genieinsamen reflector or in front of mechanically combined reflectors Transmitting and receiving antennas are designed in such a way that they are only perpendicular to one another send or receive polarized radiation or radiation components.

Es ist bekannt, im Gegensprechverkehr den einzelnen Sprechrichtungen zwecks gegenseitiger Entkopplung unterschiedliche Strahlungspolarisationen zuzuordnen und hierzu vor einem gemeinsamen Reflektor angeordnete, senkrecht aufeinanderstehende Sende- und Empfangsantennen für ultrakurze Wellen vorzusehen. Eine ähnliche Entkopplungsmaßnahme ist auch bei Messung des Abstandes eines Sendeempfangsgerätes von einer Relaisstation gebräuchlich.It is known, in two-way communication, the individual speech directions assign different radiation polarizations for the purpose of mutual decoupling and for this purpose arranged in front of a common reflector and standing perpendicular to one another Provide transmitting and receiving antennas for ultrashort waves. A similar decoupling measure is also used when measuring the distance between a transceiver and a relay station common.

Die Erfindung nutzt die Erfahrungstatsache aus, daß die Polaiis.ationsebene einer eindeutig polarisierten Strahlung bei Reflexion an nicht vollkommen ebenen Flächen irgendwie -c- - dreht wird, so daß z. B. -ein nach Abb. i vom SendedipolS ausgehender Strahl bei Rückkehr vom Reflexionspunkt R nicht mehr in seinerAusgangspolarisation ankommt, sondern um irgendeinen Winkel cp verdreht. Bringt man also einen in Abb. i nicht dargestellten Empfangsdipol senkrecht zu S an, so wird dieser zwar vom Sender S direkt nichts empfangen, wohl aber ein gewisses Quantum von dem in seiner Polarisationsebene verdrehten Rückstrahl.The invention uses the fact of experience that the Polaiis.ationsebene a clearly polarized radiation when reflected on not perfectly flat surfaces somehow -c- - rotates, so that z. B. -a beam emanating from the transmitting dipole S as shown in Fig. If a receiving dipole, not shown in Fig. I, is attached perpendicular to S, it will not receive anything directly from the transmitter S, but a certain amount of the return beam, which is twisted in its plane of polarization.

In den Abb.2 bis 4 sind einige Beispiele der praktischen Ausführung gezeigt. In Abb. steht senkrecht auf dem Sendedipol S der Empfangsdipol F. Der Schnittpunkt beider liegt im Brennpunkt des Parabolspiegels P. Diese an sich für Zwecke des Gegensprechverkehrs bekannte Anordnung kommt insbesondere für sehr kurze Wellen in Frage.In Figs. 2 to 4 are some examples of the practical implementation shown. In the figure, the receiving dipole F is perpendicular to the transmitting dipole S. The point of intersection both lies in the focal point of the parabolic mirror P. This per se for purposes of two-way communication known arrangement is particularly suitable for very short waves.

In Abb. 3 stehen die Dipolzeilen SS und EEEE aufeinander senkrecht und gleichzeitig in den Brennlinien des Doppelparabolspiegels DP.In Fig. 3 the dipole lines SS and EEEE are perpendicular to each other and at the same time in the focal lines of the double parabolic mirror DP.

Abb.4 zeigt schließlich eine Antennenanordnung nach Art der bekannten Tannenbau.mantenne vor dem Reflektor F, bei der auf je einem Sendedipol S ein Empfangsdipol E senkrecht steht.Finally, Fig.4 shows an antenna arrangement of the type known Tannenbau.mantenne in front of the reflector F, with a receiving dipole on each of a transmitting dipole S. E is vertical.

Claims (3)

PATENTANSPRÜCHE: i. Gerät zur Ermittlung eines elektromagnetische, ultrakurze Wellen reflektierenden Gegenstandes, bestehend aus nebeneinander angeordnetem Sender und Empfänger, dadurch gekennzeichnet, daß die vor einem gemeinsamen Reflektor oder vor mechanisch vereinigten Reflektoren angeordneten Sende- und Empfangsantennen derart ausgebildet sind, daß sie nur senkrecht zueinander polarisierte Strahlungen bzw. Strahlungskomponenten senden bz«-. empfangen. PATENT CLAIMS: i. Device for determining an electromagnetic, ultrashort waves reflecting object, consisting of juxtaposed Transmitter and receiver, characterized in that the front of a common reflector or transmit and receive antennas arranged in front of mechanically combined reflectors are designed in such a way that they only contain radiations polarized perpendicularly to one another or radiation components send bz «-. receive. 2. Antennenanordnung für ein Gerät nach Anspruch i, dadurch gekennzeichnet, daß die Bündelung in einer Richtung mittels einer Dipolzeile, in der anderen Richtung mittels gewölbter Spiegel erfolgt und daß die für beide Strahleranordnungen vorgesehenen Spiegel metallisch miteinander verbunden sind, insbesondere aus einem Metallstück bestehen (Abb.3). 2. Antenna arrangement for a Device according to claim i, characterized in that the bundling is in one direction by means of a dipole line, in the other direction by means of curved mirrors and that the mirrors provided for both radiator arrangements are metallic with one another are connected, in particular consist of a piece of metal (Fig.3). 3. Antennenanordnung für ein Gerät nach Anspruch i, dadurch gekennzeichnet, daß die Bündelung in vertikaler und horizontaler Richtung durch Mehrfachanordnung von Einzelstrahlern erfolgt, die nach Art der Tannenbaumantennen angeordnet sind (Abb.4).3. Antenna arrangement for a device according to claim i, characterized in that the bundling in vertical and horizontal direction by multiple arrangement of individual radiators, the are arranged according to the type of Christmas tree antennas (Fig.4).
DET45206D 1935-04-17 1935-04-18 Device for the detection of an electromagnetic, ultrashort wave reflecting object Expired DE731700C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET45206D DE731700C (en) 1935-04-17 1935-04-18 Device for the detection of an electromagnetic, ultrashort wave reflecting object

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE804966X 1935-04-17
DET45206D DE731700C (en) 1935-04-17 1935-04-18 Device for the detection of an electromagnetic, ultrashort wave reflecting object

Publications (1)

Publication Number Publication Date
DE731700C true DE731700C (en) 1943-02-13

Family

ID=25948797

Family Applications (1)

Application Number Title Priority Date Filing Date
DET45206D Expired DE731700C (en) 1935-04-17 1935-04-18 Device for the detection of an electromagnetic, ultrashort wave reflecting object

Country Status (1)

Country Link
DE (1) DE731700C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950862C (en) * 1952-03-30 1956-10-18 Siemens Ag An arrangement consisting of transmitting and receiving antennas connected to a wave amplifier
DE1001735B (en) * 1953-02-06 1957-01-31 Marconi Wireless Telegraph Co Fork arrangement for very short electromagnetic waves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950862C (en) * 1952-03-30 1956-10-18 Siemens Ag An arrangement consisting of transmitting and receiving antennas connected to a wave amplifier
DE1001735B (en) * 1953-02-06 1957-01-31 Marconi Wireless Telegraph Co Fork arrangement for very short electromagnetic waves

Similar Documents

Publication Publication Date Title
DE69433175T2 (en) METHOD FOR SIMULTANEOUSLY MEASURING THE POSITIONS OF MORE THAN ONE SURFACE IN METALLURGICAL PROCESSES
DE102009046499A1 (en) radar device
DE2358585C3 (en) Radio direction finder and radio beacon working according to the reciprocity law
DE102008001467A1 (en) Multibeam radar sensor
DE112012006085T5 (en) Meteorological Doppler radar
DE112018002068T5 (en) RADAR SYSTEM
DE731700C (en) Device for the detection of an electromagnetic, ultrashort wave reflecting object
DE102017212722A1 (en) Radar sensor with several main beam directions
CH681661A5 (en)
DE642385C (en) Method for creating a guideline using overlapping radiation bundles
DE2532970A1 (en) ANTENNA
DE2103580B1 (en) Method for determining direction
DE625348C (en) DF method to eliminate the nighttime effect
AT147313B (en) Device for spatial direction finding.
DE446116C (en) Directional antenna system
DE767629C (en) Method for determining the position of an object reflecting electromagnetic waves in space
DE943710C (en) Antenna arrangements for ultra-short waves
DE759377C (en) Arrangement to increase the radiation intensity in the main direction with parabolic mirror arrangements
DE2316910A1 (en) ROW OF ANTENNA WITH ANGLE FILTER
DE736508C (en) Grating reflector for ultra-short waves
DE805290C (en) DF method for determining the direction of incidence of electromagnetic waves
DE2630550A1 (en) TRANSMITTER-RECEIVER DEVICE FOR ACOUSTIC WAVES
DE699319C (en) Antenna system consisting of a main radiator and keyed reflectors
DE2453265A1 (en) Electro-magnetic radiation and direction of incidence detector - has laser scanning sender with optics and evaluating electronics
DE767514C (en) Antenna arrangement for carrying out a method for determining direction