AT118000B - Generator for extremely high frequencies. - Google Patents

Generator for extremely high frequencies.

Info

Publication number
AT118000B
AT118000B AT118000DA AT118000B AT 118000 B AT118000 B AT 118000B AT 118000D A AT118000D A AT 118000DA AT 118000 B AT118000 B AT 118000B
Authority
AT
Austria
Prior art keywords
generator
extremely high
high frequencies
switching elements
self
Prior art date
Application number
Other languages
German (de)
Original Assignee
Telefunken 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 Telefunken Gmbh filed Critical Telefunken Gmbh
Application granted granted Critical
Publication of AT118000B publication Critical patent/AT118000B/en

Links

Landscapes

  • General Induction Heating (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Generator für extrem hohe Frequenzen. 



   Bei der Erzeugung extrem kurzer Wellen machen sich die Verbindungsleitungen der Schaltelemente durch ihre Kapazität und Selbstinduktion äusserst störend bemerkbar. Bis zu einer Frequenz von zirka 50. 000KH. ist die Erzeugung noch mit normalen, ausserhalb der Röhren befindlichen Schalt-   elementen möglich,   von dieser Frequenz an jedoch nimmt die Leitungskapazität und-selbstinduktion derart grosse Werte an, dass eine wesentliche Erhöhung der Frequenz nicht mehr   möglich   ist. Die vorliegende Erfindung sieht nun vor, sämtliche Schaltelemente eines Kurzwellengenerators in ein evakuiertes Glasgefäss einzuschmelzen, um durch zweckmässige Anordnung, besonders Fortfall von Verbindungsleitungen, die Erzeugung wesentlich höherer Frequenzen zu ermöglichen. 



   Die Methode, Schaltelemente in ein Glasgefäss einzuschmelzen, ist an sich bekannt, neu ist die Einschmelzung der Abstimmorgane in das evakuierte   Glasgeiäss   zur Erzielung extrem kurzer Verbindungen von diesen zu den einzelnen Organen der Röhren (Kathode-Gitter-Anode). 



   Die Figuren zeigen ein Beispiel eines Kurzwellengenerators in Gegentaktschaltung, deren Prinzipschema Fig. 1 zeigt. Fig. 2 gibt eine mögliche Anordnung der Schaltelemente in der Röhre. Die beiden Elektrodensysteme Rund   Si,   diean Glasbrückenangeschmolzensind, sind direkt mit   denSelbstinduktionenL   und Li verbunden. Die Leitungen A, B,   C   für Heiz-und Anodenspannung werden durch den Glasfuss nach aussen geführt. Die Glühfäden der beiden Röhrensysteme sind in Serie geschaltet und durch eine Verbindung V miteinander verbunden. Eine Variation der Frequenz ist möglich auf kapazitivem Wege, u. zw. durch zwei an die Anoden angeschweisste Bleche D und   D,   die von aussen durch einen Blechzylinder od. dgl. (E) kapazitiv geschlossen werden. 



   Ein anderer Weg induktiver Natur ist die Annäherung eines   Kurzschlussringes   an die Selbstinduktionen. 



   PATENT-ANSPRÜCHE :
1. Generator für extrem hohe Frequenzen, dadurch gekennzeichnet, dass zur Beseitigung aller, nicht direkt zum Schwingkreis gehörigen Kapazitäten und Selbstinduktionen sämtliche Schaltelemente einschliesslich der Schwingkreise in ein evakuiertes Glasgefäss eingeschlossen sind. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Generator for extremely high frequencies.



   When generating extremely short waves, the connecting lines of the switching elements are extremely disturbing due to their capacitance and self-induction. Up to a frequency of around 50,000KH. Generation is still possible with normal switching elements located outside the tubes, but from this frequency on the line capacitance and self-induction take on such large values that a substantial increase in the frequency is no longer possible. The present invention now provides for all switching elements of a short-wave generator to be melted into an evacuated glass vessel in order to enable the generation of significantly higher frequencies by means of an appropriate arrangement, especially the omission of connecting lines.



   The method of melting switching elements in a glass vessel is known per se, but what is new is the melting of the tuning organs in the evacuated glass vessel to achieve extremely short connections from these to the individual organs of the tubes (cathode-grid-anode).



   The figures show an example of a short-wave generator in push-pull circuit, the basic diagram of which is shown in FIG. Fig. 2 gives a possible arrangement of the switching elements in the tube. The two electrode systems around Si, which are fused to glass bridges, are directly connected to the self-inductances L and Li. The lines A, B, C for heating and anode voltage are led to the outside through the glass base. The filaments of the two tube systems are connected in series and connected to one another by a connection V. A variation of the frequency is possible in a capacitive way, u. between two sheets D and D welded to the anodes, which are capacitively closed from the outside by a sheet metal cylinder or the like (E).



   Another way of inductive nature is the approximation of a short-circuit ring to the self-induction.



   PATENT CLAIMS:
1. Generator for extremely high frequencies, characterized in that all switching elements including the oscillating circuits are enclosed in an evacuated glass vessel in order to eliminate all capacities and self-inductions that are not directly related to the resonant circuit.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass eine Variation der Frequenz durch kapazitive oder induktive Beeinflussung von aussen erfolgt. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Device according to claim 1, characterized in that the frequency is varied by capacitive or inductive influencing from the outside. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT118000D 1928-04-21 1929-04-09 Generator for extremely high frequencies. AT118000B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE118000X 1928-04-21

Publications (1)

Publication Number Publication Date
AT118000B true AT118000B (en) 1930-06-10

Family

ID=5655402

Family Applications (1)

Application Number Title Priority Date Filing Date
AT118000D AT118000B (en) 1928-04-21 1929-04-09 Generator for extremely high frequencies.

Country Status (1)

Country Link
AT (1) AT118000B (en)

Similar Documents

Publication Publication Date Title
AT118000B (en) Generator for extremely high frequencies.
DE526727C (en) Generator for very high frequencies in which all oscillating circuit elements are enclosed in an evacuated glass vessel
AT158530B (en) Circuit arrangement for resonant circuits.
DE632615C (en) Electron tubes with high-frequency choke or chokes
AT123165B (en) Device for generating short waves.
DE520061C (en) Tube generator for short waves with a frequency-determining oscillation circuit in the tube
AT124432B (en) Electrical inductances and capacitances for electrical oscillating circuits.
DE500445C (en) Transmitter oscillation circuit with a coil inductively coupled to the useful circuit without parallel capacitance
DE480821C (en) High frequency transmitter with cathode tubes for undamped vibrations
DE852560C (en) Circuit arrangement for filtering out harmonics
DE629901C (en) Oscillator circuit
AT84059B (en) A generator of electrical oscillations consisting of a cathode ray tube in a feedback circuit.
DE666333C (en) Circuit for the amplification of high frequency vibrations using thermionic tubes with two or more grids
AT142045B (en) Circuit for amplifying high frequency oscillations.
DE606151C (en) Circuit for eliminating interference waves
AT150102B (en) Shortwave tube.
AT121673B (en) Device for increasing the frequency of an electrical oscillation.
DE541776C (en) Flywheel circuit in which a short-circuit element, tuned to an undesired frequency, is connected between the points provided for taking off the useful high frequency
DE614374C (en) Ultra-short wave transmission and reception arrangement
AT109537B (en) X-ray tubes and equipment for their operation.
DE529333C (en) Neutrodyne circuit for high frequency amplifier
AT101569B (en) Device for generating high-frequency vibrations.
AT139260B (en) Device for high frequency, short wave or ultra short wave treatment of the human body or for similar purposes.
DE557730C (en) Single sideband transmitter
AT154541B (en) Arrangement for amplifying short, especially ultra-short waves of great power.