JPS5595258A - Magnetron - Google Patents
MagnetronInfo
- Publication number
- JPS5595258A JPS5595258A JP135479A JP135479A JPS5595258A JP S5595258 A JPS5595258 A JP S5595258A JP 135479 A JP135479 A JP 135479A JP 135479 A JP135479 A JP 135479A JP S5595258 A JPS5595258 A JP S5595258A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic poles
- magnetic
- cylindrical member
- aperture
- noises
- 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
Landscapes
- Microwave Tubes (AREA)
Abstract
PURPOSE: To suppress the production of noises and eliminate the radio wave interfere, by forming apertures of cylindrical magnetic poles, for directing magnetic flux from permanent magnets to the cathode structure, provided at the opposite ends of the anode structure so that there is a particular difference between the aperture angles.
CONSTITUTION: A cathode structure 2 is disposed in the central portion of a cylindrical member 1 constituting an anode, and at the opposite ends of the cylindrical member 1 there are provided magnetic poles 4 having trapezoidal shape in cross- section, and also provided adjacent the magnetic poles 4 are permanent magnets 7 consisting of ferrite to direct magnetic flux to the magnetic poles 4 via focusing rings 8. The magnetic poles 4 comprise a magnetic pole 14 having an aperture angle θ1=105° disposed at the upper end of the cylindrical member 1 and a magnetic pole 15 having an aperture angle θ2=75° at the lower end of the cylindrical member 1 so that there is difference of 30° between the two aperture angles. Thus, the axial magnetic field of the magnetic poles 14, 15 can be made large so that the production of noises in 2GHz band, which is the dominant wave band, can be suppressed and the radio wave interfere can be elminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP135479A JPS5595258A (en) | 1979-01-12 | 1979-01-12 | Magnetron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP135479A JPS5595258A (en) | 1979-01-12 | 1979-01-12 | Magnetron |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595258A true JPS5595258A (en) | 1980-07-19 |
Family
ID=11499146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP135479A Pending JPS5595258A (en) | 1979-01-12 | 1979-01-12 | Magnetron |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595258A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008027832A (en) * | 2006-07-25 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Magnetron |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5220161B2 (en) * | 1973-09-29 | 1977-06-01 |
-
1979
- 1979-01-12 JP JP135479A patent/JPS5595258A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5220161B2 (en) * | 1973-09-29 | 1977-06-01 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008027832A (en) * | 2006-07-25 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Magnetron |
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