GB666760A - Improvements in and relating to ultra high frequency attenuator - Google Patents
Improvements in and relating to ultra high frequency attenuatorInfo
- Publication number
- GB666760A GB666760A GB32111/49A GB3211149A GB666760A GB 666760 A GB666760 A GB 666760A GB 32111/49 A GB32111/49 A GB 32111/49A GB 3211149 A GB3211149 A GB 3211149A GB 666760 A GB666760 A GB 666760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- attenuator
- dec
- distortion
- wave
- relating
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/22—Attenuating devices
- H01P1/225—Coaxial attenuators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/202—Coaxial filters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
666,760. High - frequency attenuators. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 14, 1949 [Dec. 24, 1948], No. 32111/49. Class 40 (viii). An attenuator for high-frequency systems comprises a wave-guide section 1 having a closed end through which is sealed an input coaxial line 4 having an input plate 2 connected to its internal conductor 3 and an output plate 6 is mounted on the inner 7 of an output line 8 secured in a sliding plug 9 which closes the open end of the wave-guide section. The perimeters of plates 2 and 6 extend close enough to the inner surface of the guide to capacitatively couple them thereto and reduce the distortion of the fields as energy is transferred. This reduces the distortion of the logarithmic characteristic the attenuator would possess in the absence of end effects.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US666760XA | 1948-12-24 | 1948-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB666760A true GB666760A (en) | 1952-02-20 |
Family
ID=22070987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32111/49A Expired GB666760A (en) | 1948-12-24 | 1949-12-14 | Improvements in and relating to ultra high frequency attenuator |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1002795A (en) |
| GB (1) | GB666760A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183894B (en) * | 2014-08-29 | 2018-05-04 | 中国人民解放军63655部队 | A kind of cut-off type microwave power attenuator |
-
1949
- 1949-12-14 FR FR1002795D patent/FR1002795A/en not_active Expired
- 1949-12-14 GB GB32111/49A patent/GB666760A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1002795A (en) | 1952-03-10 |
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