DE943834C - Antenna system - Google Patents

Antenna system

Info

Publication number
DE943834C
DE943834C DEF4636D DEF0004636D DE943834C DE 943834 C DE943834 C DE 943834C DE F4636 D DEF4636 D DE F4636D DE F0004636 D DEF0004636 D DE F0004636D DE 943834 C DE943834 C DE 943834C
Authority
DE
Germany
Prior art keywords
antenna
capacitor
dipole
inner conductor
vol
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
DEF4636D
Other languages
German (de)
Inventor
Dr Hermann Schuster
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh 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 Fernseh GmbH filed Critical Fernseh GmbH
Priority to DEF4636D priority Critical patent/DE943834C/en
Application granted granted Critical
Publication of DE943834C publication Critical patent/DE943834C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Description

Die Erfindung betrifft Antennenanlagen für Ultrakurzwellen zum gleichzeitigen Empfang weiterer Frequenzbereiche und bezieht sich insbesondere auf Antennenanlagen, welche wenigstens einen auf die ultrakurze Empfangswelle abgestimmten Dipol enthalten. Die Erfindung bezweckt, durch eine besonders:' zweckmäßige Einschaltung eines tYbertragers in die Antennenableitung den gleichzeitigen Empfang von beispielsweise Fernseh- und Rundfunkübertragungen zu ermöglichen.The invention relates to antenna systems for ultra-short waves for simultaneous Reception of other frequency ranges and relates in particular to antenna systems, which contain at least one dipole tuned to the ultrashort received wave. The aim of the invention is, through a particularly: 'expedient inclusion of a transmitter in the antenna lead the simultaneous reception of, for example, television and to enable radio broadcasts.

Erfindungsgemäß wird bei der Antennerianlage zwischen den Innenleiter der konzentrischen abgeschirmten Antennenableitung und den zugehörigen Dipolanschluß ein Kondensator geschaltet, = zu welchem ein Übertrager parallel liegt, wobei die elektrischen Werte dieser Schaltelemente derart bemessen sind, daß das Ultrakurzwellenband, beispielsweise für Fernsehübertragungen, über den Kondensator dem Innenleiter zugeführt wird, während das andere Frequenzband, beispielsweise für Rundfunkübertragungen, über den Übertrager dem Innenleiter zugeführt wird.According to the invention, in the case of the antenna system, between the inner conductor the concentric shielded antenna lead and the associated dipole connector a capacitor connected, = to which a transformer is parallel, the electrical values of these switching elements are dimensioned in such a way that the ultra-short wave band, for example for television broadcasts, fed to the inner conductor via the capacitor while the other frequency band, e.g. for radio broadcasts, is fed to the inner conductor via the transformer.

Im nachfolgenden wird die Erfindung an Hand der ein Ausführungsbeispiel darstellenden Figur beschrieben. In der Abbildung ist eine kombinierte Rundfunk- und Fernsehantenne dargestellt. An den Spannungsknoten des auf die Fernsehwelle .1 abgestimmten Empfangsdipols z ist der Mantel 4 der Antennenableitung über eine Verbindungsleitung 5 mit einer elektrischen Länge von n-2/2 angeschlossen. In diese Verbindungsleitung ist ein Kondensator 9 eingeschaltet. Die- durch die einfallenden Ultrakurzwellen-im Dipol auftretenden Spannungen werden am Anschlußpunkt 3 abgenommen und über den Kondensator ro kleiner Kapazität dem Innen= leiten 2 zugeführt. Für die in der Empfangsantenne entstehenden Spannungen des Rundfunkfrequenzbereichs bietet der Kondensator zo einen verhältnismäßig hohen Widerstand, und diese Frequenzen werden über den zur Entkopplung dienenden Widerstand zz und die Wicklung 12 eines Ubertragers abgeleitet. Die in der Sekundärwicklung 13 dieses Übertragers entstehenden Spannungen werden über den Entkopplungswiderstand 14 dem Innenleiter :2 der Antennenableitung aufgedrückt. Die Verbindungsleitung 5 stört in diesem Fall den Rundfunkempfang nicht, da der kleine Kondensator 9 den Fernsehfrequenzen nur einen sehr geringen, den Rundfunkfrequenzen hingegen einen sehr hohen Widerstand bietet.In the following the invention is based on an exemplary embodiment descriptive figure. The figure shows a combined broadcasting and television antenna shown. At the tension node of the television wave .1 matched receiving dipole z is the jacket 4 of the antenna lead over a Connecting line 5 connected with an electrical length of n-2/2. In these Connecting line, a capacitor 9 is switched on. Die- through the incident Ultra-short wave voltages occurring in the dipole are picked up at connection point 3 and supplied to the inside = conduct 2 via the capacitor ro with a small capacity. For the voltages of the radio frequency range that arise in the receiving antenna the capacitor offers a relatively high resistance, and these frequencies become via the resistor zz serving for decoupling and the winding 12 of a Derived from the transmitter. The resulting in the secondary winding 13 of this transformer Voltages are transmitted via the decoupling resistor 14 to the inner conductor: 2 of the antenna conductor pressed on. The connection line 5 does not interfere with radio reception in this case, since the small capacitor 9 only has a very low television frequency, the radio frequency however, offers a very high resistance.

Claims (1)

PATENTANSPRUCH: Antennenanlage zum gleichzeitigen Ultrakurz-.wellen-, insbesondere Fernsehempfang, und Empfang des Rundfunkwellenbereiches, mit 'wenigstens einem auf die Ultrakurzwelle 2, abgestimmten Dipol und einer abgeschirmten Antennenableitung, deren antennenseitiges Mantelende mit dem Spannungsknoten des Dipols .über- eine Zuleitung von der Länge r = n - .1/2 verbunden ist, dadurch gekennzeichnet, daß zwischen den Innenleiter der Antennenableitung und den Abgriffspunkt am Dipol ein Kondensator geschaltet ist, der über Entkopplungswiderstände durch einen Übertrager in der Weise überbrückt ist, daß am Antennenanschluäpunkt das eine Ende der Primärwicklung und an der anderen Belegung des Kondensators das eine Ende der Sekundärwicklung des übertragers liegt, während die beiden anderen Enden dieser Übertragerwicklungen gemeinsam am Mantelende angeschlossen sind, wobei die elektrischen Werte dieser Schaltelemente derart bemessen sind, daß das Fernsehfrequenzband über den Kondensator dem Innenleiter zugeführt wird, während das Rundfunkfrequenzband über den Übertrager dem Innenleiter zugeführt wird. Angezogene Druckschriften: VDE-Fachberichte, Bd. ro, 1938, S. -174; »Handbuch der Funktechnik«, Bd..6, 1938, Abb. 138 8 auf S. 164; Bd. 3, 1937, S. 329, Abb. 5z9.PATENT CLAIM: Antenna system for simultaneous ultra-short wave, in particular television reception, and reception of the radio wave range, with 'at least a dipole tuned to ultra-short wave 2 and a shielded antenna lead, whose antenna-side jacket end with the voltage node of the dipole .over a Supply line of length r = n - .1 / 2 is connected, characterized in that between the inner conductor of the antenna lead and the tap point on the dipole Capacitor is connected via decoupling resistors through a transformer is bridged in such a way that one end of the primary winding at the antenna connection point and one end of the secondary winding at the other occupancy of the capacitor of the transformer lies, while the other two ends of these transformer windings are connected together at the end of the jacket, the electrical values of these Switching elements are dimensioned such that the television frequency band across the capacitor is fed to the inner conductor, while the radio frequency band via the transmitter is fed to the inner conductor. Referred to: VDE technical reports, vol. ro, 1938, pp -174; "Handbuch der Funktechnik", Vol. 6, 1938, Fig. 138 8 on p. 164; Vol. 3, 1937, p. 329, Fig. 5z9.
DEF4636D 1939-08-05 1939-08-05 Antenna system Expired DE943834C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF4636D DE943834C (en) 1939-08-05 1939-08-05 Antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF4636D DE943834C (en) 1939-08-05 1939-08-05 Antenna system

Publications (1)

Publication Number Publication Date
DE943834C true DE943834C (en) 1956-06-01

Family

ID=7084274

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF4636D Expired DE943834C (en) 1939-08-05 1939-08-05 Antenna system

Country Status (1)

Country Link
DE (1) DE943834C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254373A1 (en) * 1986-07-23 1988-01-27 Philips Electronique Grand Public Antenna for high frequencies

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254373A1 (en) * 1986-07-23 1988-01-27 Philips Electronique Grand Public Antenna for high frequencies
FR2602097A1 (en) * 1986-07-23 1988-01-29 Portenseigne ANTENNA FOR HIGH FREQUENCY SIGNALS

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