DE408671C - Arrangement for multiple directional reception - Google Patents
Arrangement for multiple directional receptionInfo
- Publication number
- DE408671C DE408671C DET27877D DET0027877D DE408671C DE 408671 C DE408671 C DE 408671C DE T27877 D DET27877 D DE T27877D DE T0027877 D DET0027877 D DE T0027877D DE 408671 C DE408671 C DE 408671C
- Authority
- DE
- Germany
- Prior art keywords
- antenna
- individual
- aperiodic
- circuits
- frequencies
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
(T27&77(T27 & 77
Die bekannten Einrichtungen zum gleichzeitigen gerichteten Empfang mehrerer Wellen mittels aperiodischer Richtantennenanlage bestehen darin, daß die Rahmeneffekte für die verschiedenen Wellen aperiodisch über ein Kabel mittels reaktionsloser Röhrenkopplungen den auf die zu empfangenden Wellen abgestimmten Empfängerkreisen zugeführt werden.The known devices for the simultaneous directional reception of several waves by means of aperiodic directional antenna system are that the frame effects for the different waves aperiodically via a cable by means of non-reactive tube couplings be fed to the receiver circuits matched to the waves to be received.
ίο Mit solch einer Einrichtung ist es möglich,ίο With such a facility it is possible
It zweiseitigen Richtempfang für jede Welle gleichzeitig zu erzielen. Soll eine einseitige Richtwirkung für den Empfang der einzelnen Wellen hergestellt werden, so kombiniert man in bekannter Art mit der Richtantenne noch je eine Hochantenne. Dann gelangt man zu einer Antennenanlage, welche für jede aufzunehmende Frequenz eine einsaitig gerichtete Empfangscharakteristik hat. Durch die ent-It has two-way directional reception for each wave to achieve at the same time. Is intended to have a unidirectional directivity for the reception of each Waves are produced, so one combines in a known way with the directional antenna one more high antenna each. Then you get to an antenna system, which is to be recorded for each Frequency has a one-string directional reception characteristic. Due to the
ao sprechende Einstellung der Amplituden und Phasen der einzelnen Rahmen- und Antenneneffekte kann die Form der Charakteristik in bekannter Weise verändert und die Lage der toten Winkel eingestellt werden. In der Zeichnung ist die prinzipielle Schaltung solch einer Anlage dargestellt. A bedeutet die Antenne, von welcher die Rahmeneffekte aperiodisch über das Kabel K und eine reaktionslose Kopplungseinrichtung c den auf die WeIIeA1, λ2, λζ abgestimmten Empfängerkreisen 1,2, 3 zugeführt werden. Diesen Empfängerkreisen werden über die Kabel K1, K2, Ka die Hochantenneneffekte von den drei Hochantennen A1, A2 und A3 übertragen. Diese bekannte Anordnung ermöglicht einen guten störungsfreien gleichzeitigen Empfang mehrerer Wellen. Sie hat aber den großen Nachteil, daß die Anlage dadurch sehr kostspielig wird, daß man zur Erzielung der einzelnen Hochantenneneffekte so viel Hochantennen braucht, wieviel Wellen gleichzeitig empfangen werden sollen.ao speaking setting of the amplitudes and phases of the individual frame and antenna effects, the shape of the characteristic can be changed in a known manner and the position of the blind spots can be set. In the drawing, the basic circuit of such a system is shown. A means the antenna from which the frame effects are fed aperiodically via the cable K and a non-reactive coupling device c to the receiver circuits 1 , 2 , 3, which are matched to the wave A 1, λ 2, λ ζ. The high antenna effects from the three high antennas A 1 , A 2 and A 3 are transmitted to these receiver circuits via the cables K 1 , K 2 , K a. This known arrangement enables good, interference-free simultaneous reception of several waves. However, it has the great disadvantage that the system becomes very expensive because as many high antennas are needed to achieve the individual high antenna effects, how many waves are to be received at the same time.
Nach der vorliegenden Erfindung werden die zur Herstellung der gewünschten Fernwirkungscharaktenistik erforderlichen Antenneneffekte für alle Frequenzen einer einzigen Hochantenne entnommen. Man führt nämlich von einer einzigen aperiodischen Hochantenne (oder einer Antenne, deren Resonanzfrequenz stark von den Empfangsfrequenzen abweicht) die Spannungen der einzelnen Frequenzen den Eingangskreisen von Elektronenröhren zu, mit deren Ausgangskreisen ein auf die aufzunehmende Frequenz abgestimmter Schwingungskreis verbunden ist. Als aperiodische Hochantenne benutzt man zweckmäßig die geerdete Richtantenne. Zur Erläuterung der Erfindung dient die Abb. 2. Von dem gemeinsam als Hochantenne wirkenden geerdeten Rahmen A werden die Spannungen der einzelnen Wellen X1, I2 und A3 auf die Röhren R1, R2 und R3 übertragen. In den auf die zuAccording to the present invention, the antenna effects required to produce the desired long-range effect characteristics are taken from a single high antenna for all frequencies. The voltages of the individual frequencies are fed from a single aperiodic high antenna (or an antenna whose resonance frequency differs greatly from the receiving frequencies) to the input circuits of electron tubes, to whose output circuits an oscillating circuit tuned to the frequency to be recorded is connected. The grounded directional antenna is expediently used as an aperiodic high antenna. Fig. 2 is used to explain the invention. The earthed frame A , which jointly acts as a high antenna, transmits the voltages of the individual waves X 1 , I 2 and A 3 to the tubes R 1 , R 2 and R 3. In the on to
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET27877D DE408671C (en) | 1923-06-29 | 1923-06-29 | Arrangement for multiple directional reception |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET27877D DE408671C (en) | 1923-06-29 | 1923-06-29 | Arrangement for multiple directional reception |
Publications (1)
Publication Number | Publication Date |
---|---|
DE408671C true DE408671C (en) | 1925-01-26 |
Family
ID=7553774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET27877D Expired DE408671C (en) | 1923-06-29 | 1923-06-29 | Arrangement for multiple directional reception |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE408671C (en) |
-
1923
- 1923-06-29 DE DET27877D patent/DE408671C/en not_active Expired
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