DE943834C - Antenna system - Google Patents
Antenna systemInfo
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual 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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0254373A1 (en) * | 1986-07-23 | 1988-01-27 | Philips Electronique Grand Public | Antenna for high frequencies |
-
1939
- 1939-08-05 DE DEF4636D patent/DE943834C/en not_active Expired
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (2)
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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