GB803792A - Improvements in or relating to chambers for radio frequency measuring systems - Google Patents
Improvements in or relating to chambers for radio frequency measuring systemsInfo
- Publication number
- GB803792A GB803792A GB12169/55A GB1216955A GB803792A GB 803792 A GB803792 A GB 803792A GB 12169/55 A GB12169/55 A GB 12169/55A GB 1216955 A GB1216955 A GB 1216955A GB 803792 A GB803792 A GB 803792A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receiver
- absorbing material
- chamber
- source
- walls
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
- G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
Abstract
803,792. Measuring radio interference; testing aerials. SIEMENS & HALSKE A.G. April 27, 1955 [April 30, 1954], No. 12169/55. Classes 40 (5) and 40 (7). Radio interference from a source S is measured at a receiver E in a chamber 1 and the chamber side-walls or lateral boundaries of the path between the source Sand receiver E are covered with radio wave absorbing material 3 to prevent reflected energy affecting the measurements. Moreover, the chamber ends behind the source S or receiver E may be parabolic or ellipsoidal surfaces of revolution or cylinders to focus radiation on them only towards the receiver E, and in addition a reflector in front of the source S and/or receiver R may prevent direct transfer of radiation, or the end walls may only have wave-absorbing material. The absorbing material may be applied on to acoustic absorbing material or may be graphite or other material impregnated in the sound-absorbing material, the latter having conical projections. It may be in several layers of varying conductivities. The chamber walls may be adjustable and the chamber 1 may be vertically located in a staircase well.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE803792X | 1954-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB803792A true GB803792A (en) | 1958-11-05 |
Family
ID=6721976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12169/55A Expired GB803792A (en) | 1954-04-30 | 1955-04-27 | Improvements in or relating to chambers for radio frequency measuring systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB803792A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0600143A1 (en) * | 1991-06-27 | 1994-06-08 | The Narda Microwave Corporation | Electromagnetic radiation monitor |
| US6154178A (en) * | 1998-12-11 | 2000-11-28 | L3 Communications Corporation | Ultra wideband personal electromagnetic radiation monitor |
-
1955
- 1955-04-27 GB GB12169/55A patent/GB803792A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0600143A1 (en) * | 1991-06-27 | 1994-06-08 | The Narda Microwave Corporation | Electromagnetic radiation monitor |
| US6154178A (en) * | 1998-12-11 | 2000-11-28 | L3 Communications Corporation | Ultra wideband personal electromagnetic radiation monitor |
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