DE1164521B - Antenna socket - Google Patents
Antenna socketInfo
- Publication number
- DE1164521B DE1164521B DEK44553A DEK0044553A DE1164521B DE 1164521 B DE1164521 B DE 1164521B DE K44553 A DEK44553 A DE K44553A DE K0044553 A DEK0044553 A DE K0044553A DE 1164521 B DE1164521 B DE 1164521B
- Authority
- DE
- Germany
- Prior art keywords
- resistor
- capacitor
- cable
- antenna socket
- antenna
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
- H03H7/482—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source particularly adapted for use in common antenna systems
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
Antennen-Steckdose Bei Gemeinschafts-Antennen-Anlagen werden im Zuge eines Kabelstranges »Durchgangs-Antennen-Steckdosen« gesetzt; die letzte Dose eines solchen Stranges ist eine sogenannte Enddose, die einen Abschlußwiderstand für das Hochfrequenzkabel trägt. In F i g. 1 ist diese bekannte Anordnung gezeigt. Hierbei bedeutet 1 die Antenne, 2 einen Verstärker, 3 Durchgangs-Antennen-Steckdose und 4 die Enddose.Antenna socket In the case of communal antenna systems, the train a cable harness "through antenna sockets" set; the last can of one such a strand is a so-called terminal box, which has a terminating resistor for the High frequency cable carries. In Fig. 1 shows this known arrangement. Here 1 means the antenna, 2 an amplifier, 3 through antenna socket and 4 the end can.
Der Abschlußwiderstand wird nicht immer direkt zwischen Kabelinnenleiter und -außenleiter geschaltet, sondern er liegt oft mit einem Kondensator in Reihe. F i g. 2 zeigt dies schematisch. Hierin bedeutet 5 den Kabelinnenleiter, 6 den Kabelaußenleiter, 7 die Steckbuchse mit Entkoppelwiderstand 8 und 9 den Kondensator in Reihe mit dem Abschlußwiderstand 10.The terminating resistor is not always placed directly between the inner conductor of the cable and outer conductor switched, but it is often in series with a capacitor. F i g. 2 shows this schematically. Here 5 means the inner cable conductor, 6 the outer cable conductor, 7 the socket with decoupling resistor 8 and 9 the capacitor in series with the Terminating resistor 10.
Die Größe des Kondensators wird so bemessen, daß für hohe Frequenzen, z. B. UKW, der Kondensator nahezu keinen Hochfrequenz-Widerstand besitzt, der Abschlußwiderstand also voll wirksam ist. Bei niedrigen Frequenzen (im Lang- und Mittelwellenbereich) kommt der Kondensator als Hochfrequenz-Widerstand zur Wirkung und führt zu einem hochohmigen Abschluß des Hochfrequenz-Kabels. Dies ist erwünscht, weil im Lang- und Mittelwellenbereich die Hochfrequenz-Kabellänge normalerweise kleiner als eine Wellenlänge ist und der Abschluß des Kabels mit seinem Wellenwiderstand nur eine Spannungsminderung für diesen Bereich ergeben würde.The size of the capacitor is dimensioned so that for high frequencies, z. B. VHF, the capacitor has almost no high-frequency resistance, the terminating resistor is therefore fully effective. At low frequencies (in the long and medium wave range) the capacitor acts as a high-frequency resistor and leads to a high-resistance termination of the high-frequency cable. This is desirable because in the long run and medium wave range, the high frequency cable length is usually less than one Wavelength and the termination of the cable with its wave impedance is only one Stress reduction for this area would result.
Beim Durchmessen eines solchen Kabelstranges vom Verstärker her kann man den Abschlußwiderstand zwischen Kabelinnen- und -außenleiter mit einem Ohmmeter nicht messen, weil hierbei der Kondensator als Isolator wirkt. Hier setzt die Erfindung ein mit dem Vorschlag, dem Kondensator einen parallelen Widerstand, z. B. mit einigen 1000 Ohm zuzuschalten, um so die einfache Ohmmeter-überprüfung zu ermöglichen.When measuring such a cable harness from the amplifier can the terminating resistance between the inner and outer cable conductors with an ohmmeter do not measure because the capacitor acts as an insulator. This is where the invention comes in one with the suggestion, the capacitor a parallel resistor, z. B. with some 1000 ohms to be switched on in order to enable the simple ohmmeter check.
Die F i g. 3 zeigt ein Ausführungsbeispiel der Erfindung. Dem Kondensator 9 ist hier vor dem Abschlußwiderstand 10 ein Widerstand 11 parallel zugeschaltet, der gegenüber dem Abschlußwiderstand 10 hochohmig ist. Dadurch ist die Möglichkeit gegeben, den Abschlußwiderstand zwischen Kabelinnen und -außenleiter mit einem Ohmmeter zu messen.The F i g. 3 shows an embodiment of the invention. The capacitor 9, a resistor 11 is added in parallel here before the termination resistor 10, which has a high impedance with respect to the terminating resistor 10 degrees. This enables the terminating resistance between the inner and outer cable conductors to be measured with an ohmmeter.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK44553A DE1164521B (en) | 1961-08-22 | 1961-08-22 | Antenna socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK44553A DE1164521B (en) | 1961-08-22 | 1961-08-22 | Antenna socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1164521B true DE1164521B (en) | 1964-03-05 |
Family
ID=7223506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK44553A Pending DE1164521B (en) | 1961-08-22 | 1961-08-22 | Antenna socket |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1164521B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469666A2 (en) | 2010-12-23 | 2012-06-27 | Kathrein-Werke KG | Multimedia container |
-
1961
- 1961-08-22 DE DEK44553A patent/DE1164521B/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469666A2 (en) | 2010-12-23 | 2012-06-27 | Kathrein-Werke KG | Multimedia container |
| DE102010055963A1 (en) * | 2010-12-23 | 2012-06-28 | Kathrein-Werke Kg | Multimedia box |
| DE102010055963B4 (en) * | 2010-12-23 | 2012-11-29 | Kathrein-Werke Kg | Multimedia box |
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