DE1093438B - Cavity resonator with variable quality factor - Google Patents
Cavity resonator with variable quality factorInfo
- Publication number
- DE1093438B DE1093438B DEB55288A DEB0055288A DE1093438B DE 1093438 B DE1093438 B DE 1093438B DE B55288 A DEB55288 A DE B55288A DE B0055288 A DEB0055288 A DE B0055288A DE 1093438 B DE1093438 B DE 1093438B
- Authority
- DE
- Germany
- Prior art keywords
- cavity resonator
- quality factor
- cavity
- resonator according
- tuning elements
- 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
- 239000000463 material Substances 0.000 claims description 6
- 239000003302 ferromagnetic material Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
Description
DEUTSCHESGERMAN
Auf dem Gebiet der Mikrowellentechnik werden in gewissen Fällen Hohlraumresonatoren mit veränderbarem Gütefaktor benötigt. Ist z. B. die Frequenz eines Senders zu messen, so> muß ein Hohlraumresonator mit einem hohen Gütefaktor angewendet werden; beim Überprüfen der Modulation eines Senders muß aber ein Hohlraumresonator mit einer größeren Bandbreite als die des geprüften Signals angewendet werden, dies kann also im allgemeinen mittels eines aus einem Hohlraumresonator niedrigeren Gütefaktors ausgekoppelten und detektierten Signals erfolgen. Ist der Gütefaktor des Hohlraumresonators veränderbar, so kann für beide Zwecke derselbe Resonator angewendet werden.In the field of microwave technology, cavity resonators with variable Figure of merit required. Is z. B. to measure the frequency of a transmitter, so> a cavity resonator with a high quality factor must be used; when checking the modulation of a transmitter, however, must a cavity resonator with a wider bandwidth than that of the signal under test can be used can therefore generally be coupled out by means of a lower quality factor from a cavity resonator and detected signal. If the quality factor of the cavity resonator can be changed, so the same resonator can be used for both purposes.
Der Gütefaktor des Hohlraumresonators kann durch eine künstliche Erhöhung der Hohlraumverluste vermindert werden. Es sind Verfahren aus der Fachliteratur bekannt, gemäß welchen z. B. in den Hohlraum ein verlustreiches Material eingesetzt oder eine durch ein verlustreiches Material überzogene Platte relativ zu den elektrischen Kraftlinien bewegt wird usw.The quality factor of the cavity resonator can be reduced by artificially increasing the cavity losses will. There are methods known from the technical literature, according to which z. B. in the cavity a lossy material is used or a plate coated by a lossy material relatively is moved to the electric lines of force, etc.
Die Eigenart aller derartigen Methoden besteht in der gleichzeitigen Änderung der Hohlraumresonanzfrequenz und des Gütefaktors. Den mittels derartiger Hohlräume durchgeführten Messungen haftet eine gewisse Schwerfälligkeit an, da gleichzeitig mit der Änderung des Gütefaktors auch der Hohlraum nachgestimmt werden muß.The peculiarity of all such methods is the simultaneous change in the cavity resonance frequency and the quality factor. The measurements carried out by means of such cavities are subject to a certain degree Sluggishness, since the cavity is also readjusted at the same time as the change in the quality factor must become.
Bei der erfindungsgemäßen Ausführung ist der den Gütefaktor des Hohlraumresonators ändernde Medianismus mit einem die Frequenz desselben feinstimmenden Mechanismus derart verbunden, daß die bei der Änderung des Gütefaktors entstehende Frequenzänderung automatisch ausgeglichen wird.In the embodiment according to the invention, the medianism which changes the quality factor of the cavity resonator is connected to a frequency of the same fine-tuning mechanism in such a way that the Change in the quality factor resulting frequency change is automatically compensated.
Ein Ausführungsbeispiel des erfindungsgemäßen Hohlraumresonator ist in der Figur dargestellt. Die Durchmesser der in der Wand des Hohlraumresonators 1 angeordneten Rohre 2 und 5 müssen derart bemessen werden, daß falls die Rohre durch das Dielektrikum 4 bzw. 7 ausgefüllt sind, die Resonanzfrequenz des Hohlraumes höher als die niedrigste Grenzfrequenz liegt.An embodiment of the cavity resonator according to the invention is shown in the figure. the The diameter of the tubes 2 and 5 arranged in the wall of the cavity resonator 1 must be dimensioned in this way be that if the tubes are filled by the dielectric 4 or 7, the resonance frequency of the cavity is higher than the lowest cut-off frequency.
Im Rohr 2 ist der aus verlustreichem Material bestehende Abstimmkolben 3 angebracht, welcher mittels der Isolierstange 4 bewegt werden kann. Als *5 Kolbenmaterialien können verschiedene verlustreiche Stoffe, wie z. B. Eisenpulverkerne oder durch Graphit gesättigte Isolierstoffe usw., angewendet werden, doch kann am vorteilhaftesten ein ferromagnetisches Material verwendet werden, da in diesem Falle mit einer gegebenen prozentuellen Änderung des Gütefaktors eine kleinere Verstimmung der Frequenz verbunden ist.In the tube 2 of the existing lossy material tuning piston 3 is attached, which by means of the insulating rod 4 can be moved. As * 5 piston materials can be different lossy Substances such as B. iron powder cores or insulating materials saturated by graphite, etc., can be used, but a ferromagnetic material can be used most advantageously, since in this case with a given percentage change in the quality factor is associated with a smaller detuning of the frequency is.
Im Rohr 5 ist der mittels der Isolierstange 7 beweg-Hohlraumresonator
mit veränderlichem GütefaktorThe cavity resonator, which is moved by means of the insulating rod 7, is located in the tube 5
with variable quality factor
Anmelder:Applicant:
BUDAVOX Budapesti Hiradastechnikai Vällalat, BudapestBUDAVOX Budapesti Hiradastechnikai Vällalat, Budapest
Vertreter: Dipl.-Ing. W. Meissner,Representative: Dipl.-Ing. W. Meissner,
Berlin-Grunewald, Herbertstr. 22,Berlin-Grunewald, Herbertstr. 22
und Dipl.-Ing. H. Tischer, München 2, Patentanwälteand Dipl.-Ing. H. Tischer, Munich 2, patent attorneys
Beanspruchte Priorität:
Ungarn vom 19. November 1958Claimed priority:
Hungary from November 19, 1958
Istvän Frigyes und György Älmassy, Budapest,
sind als Erfinder genannt wordenIstvän Frigyes and György Älmassy, Budapest,
have been named as inventors
bare, aus Isolierstoff oder Metall bestehende Abstimmkolben 6 angeordnet.face, made of insulating material or metal existing tuning piston 6 is arranged.
Die Isolierstangen 4 und 7 sind durch das Verbindungsgestänge 8 miteinander verbunden. Die Abmessungen des Isolier- oder Metallabstimmkolbens 6 müssen derart bestimmt werden, daß durch die Verschiebung des aus verlustreichem Material hergestellten Abstimmkolbens 3 entstehende Resonanzfrequenzänderung durch die Verschiebung des Kolbens 6 kompensiert wird.The insulating rods 4 and 7 are connected to one another by the connecting rod 8. The dimensions of the insulating or metal tuning piston 6 must be determined so that by the displacement of the tuning piston 3 produced from lossy material resulting in a change in the resonance frequency is compensated by the displacement of the piston 6.
Die Resonanzfrequenzänderung kann auch derart ausgeglichen werden, daß die Isolierstangen 4 und 7 nicht unmittelbar, sondern mittels einer entsprechend dimensionierten Übersetzung miteinander verbunden sind.The change in resonance frequency can also be compensated for in such a way that the insulating rods 4 and 7 not directly, but connected to one another by means of a correspondingly dimensioned translation are.
Zur ohne Verstimmung erfolgenden Änderung des Gütefaktors kann ein Hubmagnet angewendet werden.A lifting magnet can be used to change the quality factor without detuning.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUBU000190 | 1958-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1093438B true DE1093438B (en) | 1960-11-24 |
Family
ID=10993807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB55288A Pending DE1093438B (en) | 1958-11-19 | 1959-10-26 | Cavity resonator with variable quality factor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3087128A (en) |
| CH (1) | CH374729A (en) |
| DE (1) | DE1093438B (en) |
| FR (1) | FR1240327A (en) |
| GB (1) | GB937175A (en) |
| NL (1) | NL245452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184965A1 (en) * | 2015-05-20 | 2016-11-24 | Mician Global Engineering Gbr | Bandpass filter comprising a cavity resonator and method for operating, adjusting or producing a bandpass filter of this type |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3187278A (en) * | 1963-11-12 | 1965-06-01 | Sylvania Electric Prod | Tunable coaxial cavity resonator with plunger mounted ring for shorting coupling loops |
| US3311839A (en) * | 1965-12-16 | 1967-03-28 | Northern Electric Co | Compensated tunable cavity with single variable element |
| US3444485A (en) * | 1967-03-17 | 1969-05-13 | Bell Telephone Labor Inc | Single adjustment,variable selectivity-constant frequency coaxial transmission line filter |
| US3699480A (en) * | 1969-12-15 | 1972-10-17 | Microwave Ass | Variable rf group delay equalizer |
| US3748604A (en) * | 1971-04-21 | 1973-07-24 | Bell Telephone Labor Inc | Tunable microwave bandstop resonant cavity apparatus |
| IT1029293B (en) * | 1975-04-14 | 1979-03-10 | Benelli P | RADIAL PERCUSSION SYSTEM FOR FIREARMS THAT USE SELF-PROPULSION PROJECTS WITH PERIMETER IGNITION |
| DE4122802C1 (en) * | 1991-07-10 | 1992-12-17 | Schott Glaswerke, 6500 Mainz, De |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB606803A (en) * | 1942-01-29 | 1948-08-20 | Sperry Gyroscope Co Inc | Improvements in or relating to hollow resonators for electro-magnetic waves |
| DE836365C (en) * | 1950-02-21 | 1952-04-10 | Blaupunkt Werke Gmbh | Device for changing the attenuation of a tuned oscillation circuit without detuning |
| US2688122A (en) * | 1947-08-28 | 1954-08-31 | Bell Telephone Labor Inc | Constant q resonator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL78640C (en) * | 1945-09-27 | |||
| US2579327A (en) * | 1946-01-30 | 1951-12-18 | Bell Telephone Labor Inc | High-frequency energy absorbing variable coupling device |
| US2566050A (en) * | 1949-04-12 | 1951-08-28 | Johnson Service Co | Electrical resonator |
-
0
- NL NL245452D patent/NL245452A/xx unknown
-
1959
- 1959-10-26 DE DEB55288A patent/DE1093438B/en active Pending
- 1959-10-26 CH CH7985659A patent/CH374729A/en unknown
- 1959-11-10 FR FR809828A patent/FR1240327A/en not_active Expired
- 1959-11-12 GB GB38481/59A patent/GB937175A/en not_active Expired
- 1959-11-18 US US853765A patent/US3087128A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB606803A (en) * | 1942-01-29 | 1948-08-20 | Sperry Gyroscope Co Inc | Improvements in or relating to hollow resonators for electro-magnetic waves |
| US2688122A (en) * | 1947-08-28 | 1954-08-31 | Bell Telephone Labor Inc | Constant q resonator |
| DE836365C (en) * | 1950-02-21 | 1952-04-10 | Blaupunkt Werke Gmbh | Device for changing the attenuation of a tuned oscillation circuit without detuning |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184965A1 (en) * | 2015-05-20 | 2016-11-24 | Mician Global Engineering Gbr | Bandpass filter comprising a cavity resonator and method for operating, adjusting or producing a bandpass filter of this type |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1240327A (en) | 1960-09-02 |
| NL245452A (en) | |
| US3087128A (en) | 1963-04-23 |
| GB937175A (en) | 1963-09-18 |
| CH374729A (en) | 1964-01-31 |
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