GB551546A - Improvements in aerials for wireless communication - Google Patents
Improvements in aerials for wireless communicationInfo
- Publication number
- GB551546A GB551546A GB5270/40A GB527040A GB551546A GB 551546 A GB551546 A GB 551546A GB 5270/40 A GB5270/40 A GB 5270/40A GB 527040 A GB527040 A GB 527040A GB 551546 A GB551546 A GB 551546A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- aerials
- hollow
- coil
- loop aerial
- 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
- 229920001342 Bakelite® Polymers 0.000 abstract 1
- 239000004637 bakelite Substances 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 239000003302 ferromagnetic material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
Landscapes
- Coils Or Transformers For Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES0179483A ES179483A1 (es) | 1940-03-21 | 1947-08-28 | MEJORAS EN ANTENAS PARA COMUNICACIoN POR RADIO |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB551546X | 1940-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB551546A true GB551546A (en) | 1943-03-01 |
Family
ID=10473119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5270/40A Expired GB551546A (en) | 1940-03-21 | 1940-03-21 | Improvements in aerials for wireless communication |
Country Status (3)
Country | Link |
---|---|
US (1) | US2339234A (ja) |
BE (1) | BE476857A (ja) |
GB (1) | GB551546A (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2438680A (en) * | 1943-03-11 | 1948-03-30 | Wladimir J Polydoroff | Loop antenna apparatus |
GB707142A (en) * | 1950-12-04 | 1954-04-14 | Wladimir John Polydoroff | Improvements in and relating to antennas for radio apparatus |
US2719922A (en) * | 1950-12-15 | 1955-10-04 | Zenith Radio Corp | Core tuned loop |
US2975421A (en) * | 1956-02-28 | 1961-03-14 | George D Chichester | Magnetic antenna |
US5923300A (en) * | 1997-04-03 | 1999-07-13 | Destron-Fearing Corporation | Multi-phase transmitter with single receive antenna for transponder interrogator |
US8436780B2 (en) | 2010-07-12 | 2013-05-07 | Q-Track Corporation | Planar loop antenna system |
US8922440B2 (en) * | 2004-12-21 | 2014-12-30 | Q-Track Corporation | Space efficient magnetic antenna method |
US9997845B2 (en) | 2004-12-21 | 2018-06-12 | Q-Track Corporation | Embedded symmetric multiple axis antenna system with isolation among the multiple axes |
US8432283B2 (en) * | 2008-01-11 | 2013-04-30 | Magnet Consulting, Inc. | Enhancing the efficiency of energy transfer to/from passive ID circuits using ferrite cores |
WO2009108702A1 (en) * | 2008-02-25 | 2009-09-03 | Mu-Gahat Holdings, Inc | Extending the read range of passive rfid tags |
WO2009132019A2 (en) | 2008-04-21 | 2009-10-29 | Mu-Gahat Holdings, Inc. | H-field shaping using a shorting loop |
-
0
- BE BE476857D patent/BE476857A/xx unknown
-
1940
- 1940-03-21 GB GB5270/40A patent/GB551546A/en not_active Expired
-
1941
- 1941-03-21 US US384525A patent/US2339234A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2339234A (en) | 1944-01-11 |
BE476857A (ja) |
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