DE1075211B - Oscillating circuit for high frequency industrial generators - Google Patents
Oscillating circuit for high frequency industrial generatorsInfo
- Publication number
- DE1075211B DE1075211B DENDAT1075211D DE1075211DA DE1075211B DE 1075211 B DE1075211 B DE 1075211B DE NDAT1075211 D DENDAT1075211 D DE NDAT1075211D DE 1075211D A DE1075211D A DE 1075211DA DE 1075211 B DE1075211 B DE 1075211B
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- resonant circuit
- box
- industrial generators
- inner conductor
- 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
- 239000004020 conductor Substances 0.000 claims description 7
- 230000001808 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 4
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Description
Schwingkreis für Hochfrequenz-Industriegeneratoren Die gesetzlichen Bestimmungen erlauben den Betrieb von Hoohfrequenzgeneratoren für industrielle Zwecke nur unter der Bedingung, @daß keine anderen Funkdienste gestört werden. Nur wenige Arbeitsfrequenzen sind genau festgelegt und freigegeben, auf denen eine unbeschränkte Abstrahlung der Hochfrequenzenergie gestattet ist. Auf allen anderen Frequenzen dürfen nur geringe, ebenfalls genau festgelegte HF-Feldstärken abgestrahlt werden.Oscillating circuit for high-frequency industrial generators The legal Regulations permit the operation of high frequency generators for industrial purposes only under the condition that no other radio services are disturbed. Only a few Working frequencies are precisely defined and released, on which an unlimited Radiation of high frequency energy is permitted. On all other frequencies Only low, also precisely defined RF field strengths may be emitted.
Es sind verschiedene Ausführungsformen bekanntgeworden, um bei Kreisen mit extrem kleinem LC-Verhältnis und daran direkt angekoppelten Arbeitsvorrichtungen die Forderung nach Frequenzstabilität für die Grundfrequenz zu erfüllen. Dune gesetzlichen Bestimmungen wurden aber hinsichtlich :der zugelassenen Störfeldstärken der Oberwellen wasentlich verschärft. Weitere Einschränkungen sind in dieser Richtung bei Einführung des Fernsehrundfunks im Dezimeterwell:engebiet noch zu erwarten. Damit tritt bei der Entwicklung von Hochfrequenz-Industriegeneratoren die Oberwellenfreiheit in den Vordergrund.Various embodiments have become known for use in circles with an extremely small LC ratio and working devices directly coupled to it to meet the requirement for frequency stability for the fundamental frequency. Dune legal However, provisions were made with regard to: the permitted interference field strengths of the harmonics something aggravated. Further restrictions are in this direction at the introduction of television broadcasting in the decimeter wave area is still to be expected. So join the development of high-frequency industrial generators the freedom from harmonics in the foreground.
Die Erfindung geht aus von einer Sch-wingkreisanordnung für Hochfrequenz-Industriegeneratoren in Form eines allseitig geschlossenenKastens (Topfkreis) mit vorzugsweise rechteckigem Querschnitt, der als Teil der Schwingkreisinduktivität einen im Kasteninnern frei stehenden, flächenhaften Innenleiter aufweist, dessen eine Kante mit einer Wand des Kastens verbunden ist und dessen gegenüberliegende Kante eine Querplatte trägt, .die mit,der ihr gegenüberliegenden Kastenwand den Schwingkreiskondensator bildet.The invention is based on a swing circuit arrangement for high-frequency industrial generators in the form of a box closed on all sides (pot circle) with a preferably rectangular one Cross-section which, as part of the resonant circuit inductance, releases one inside the box has standing, planar inner conductor, one edge of which with a wall of the box is connected and the opposite edge of which carries a transverse plate, .the one with the box wall opposite it forms the resonant circuit capacitor.
Es ist bekannt, zur Erzielung einer besonders hohen Frequenzkonstanz in Hochfrequenz-Industriegeneratoren derartige Topfkreise mit einem großen Schwingkreiskondensator zu versehen.It is known to achieve a particularly high frequency constancy in high-frequency industrial generators such pot circles with a large resonant circuit capacitor to provide.
Da ferner diese Topfkreise als vollkommen abgeschlossene Gebilde ausgeführt sind, ist die Oberwellenabstrahlung im Vergleich zu anderen, offenen Ausführungen von Schwingkreisen relativ gering.Since, furthermore, these pot circles are designed as completely closed structures is the harmonic radiation compared to other, open versions of oscillating circuits is relatively low.
Die am resultierenden Gesamtwiderstand des Kreises für die einzelnen Oberwellen anfallenden Leistungen werden aber über die Auskoppelvorrichtung auf die Arbeitsvorrichtung übertragen und dort abgestrahlt.The most resulting total resistance of the circle for each Power generated by harmonics is however on the decoupling device transferred to the working device and emitted there.
Erfindungsgemäß erfolgt bei kastenförmigen Topfkreisen der genannten Art die Ein- und Auskopplung der Hochfrequenzenergie zu beiden Seiten des Innenleiters so, daß Ein- und Auskoppelstelle durch den Innenleiter möglichst kapazitiv entkoppelt sind.According to the invention, the aforementioned takes place in the case of box-shaped cup circles Type of coupling and decoupling of the high-frequency energy on both sides of the inner conductor so that coupling and decoupling point is decoupled capacitively as possible by the inner conductor are.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch :dargestellt, .und zwar zeigt Fig. 1 den aufgeschnittenen Schwingkreis. Er besteht aus zwei symmetrischen Hälften, die die Form eines Kastens haben. Beide Teile sind durch Deckel vollkommen abgeschlossen; Fig. 2 zeigt den Schnitt durch beide Schwingkreise; Fig. 3 zeigt dieVerbindung zwischen der Generatorröhre und den Schwingkreisen.An exemplary embodiment of the invention is shown schematically in the drawing : is shown, and indeed Fig. 1 shows the resonant circuit cut open. He exists of two symmetrical halves that have the shape of a box. Both parts are completely closed by cover; Fig. 2 shows the section through both oscillating circuits; Figure 3 shows the connection between the generator tube and the resonant circuits.
Die Kapazität wird durch die Platte 1 und die Innenseite der Kastenwand 2 gebildet. Von hier fließt der Strom über die Wände 3, 4 zur Innenleiterplatte S und damit zur Kapazität zurück. Dieser Stromweg gibt gleichzeitig,die Induktivität ,des Gebildes an. Die Leitungen 6 dienen zum Anschluß der Anode der Oszillatorröhre. Sie sind so angebracht, daß die Schwingkrei-sspannung zwischen den Kondensatorplatten 1-2 gegenüber der Einspeisespannung erhöht wird.The capacity is determined by plate 1 and the inside of the box wall 2 formed. From here the current flows through the walls 3, 4 to the inner circuit board S and thus back to capacity. This current path gives at the same time, the inductance , of the structure. The lines 6 are used to connect the anode of the oscillator tube. They are attached in such a way that the resonant circuit voltage is between the capacitor plates 1-2 is increased compared to the supply voltage.
Die Anschlüsse 7 liefern :die Rückkopplungsspannung zur Eigenerregung des Generators.The connections 7 supply: the feedback voltage for self-excitation of the generator.
Bei 8 wird die Hochfrequenzenergie entnommen und der Arbeitsvorrichtung zugeführt.At 8, the high frequency energy is removed and the working device fed.
Claims (5)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1075211B true DE1075211B (en) | 1960-02-11 |
Family
ID=599101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1075211D Pending DE1075211B (en) | Oscillating circuit for high frequency industrial generators |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1075211B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1206996B (en) * | 1960-05-13 | 1965-12-16 | Radio Heaters Ltd | High frequency generator |
| DE1267752B (en) * | 1962-09-17 | 1968-05-09 | Radyne Ltd | Decoupling device for a high frequency generator |
| DE2206816A1 (en) * | 1972-02-12 | 1973-08-16 | Fruengel Frank Dr Ing | DEVICE FOR CREATING HARD STRUCTURES |
| US4211984A (en) * | 1977-05-17 | 1980-07-08 | Bison-Werke, Bahre & Greten GmbH & Co. KG | Oscillating circuit arrangements for high frequency industrial generators |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE952186C (en) * | 1953-10-02 | 1956-11-15 | Koerting Radio Werke G M B H | High-frequency oscillating circuit in the shape of a cup |
-
0
- DE DENDAT1075211D patent/DE1075211B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE952186C (en) * | 1953-10-02 | 1956-11-15 | Koerting Radio Werke G M B H | High-frequency oscillating circuit in the shape of a cup |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1206996B (en) * | 1960-05-13 | 1965-12-16 | Radio Heaters Ltd | High frequency generator |
| DE1267752B (en) * | 1962-09-17 | 1968-05-09 | Radyne Ltd | Decoupling device for a high frequency generator |
| DE2206816A1 (en) * | 1972-02-12 | 1973-08-16 | Fruengel Frank Dr Ing | DEVICE FOR CREATING HARD STRUCTURES |
| US4211984A (en) * | 1977-05-17 | 1980-07-08 | Bison-Werke, Bahre & Greten GmbH & Co. KG | Oscillating circuit arrangements for high frequency industrial generators |
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