GB217245A - Improvements in or relating to systems for the propagation and reception of hertzianwaves - Google Patents
Improvements in or relating to systems for the propagation and reception of hertzianwavesInfo
- Publication number
- GB217245A GB217245A GB13937/24A GB1393724A GB217245A GB 217245 A GB217245 A GB 217245A GB 13937/24 A GB13937/24 A GB 13937/24A GB 1393724 A GB1393724 A GB 1393724A GB 217245 A GB217245 A GB 217245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerial
- magnetic
- winding
- systems
- windings
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
217,245. Levy, L. June 6, 1923, [Convention date]. Aerials; receiving systems; transmitting systems; filter circuits. - An aerial formed of magnetic material is provided with short-circuited windings in order to tune it. Fig. 3 shows a half-wave laminated magnetic reception aerial in which stationary waves are set up, short-circuited turns 3 being provided to allow the position of the node to be varied. A winding 4 serves to connect the receiving apparatus while the magnetic losses may be compensated by feeding back amplified currents to a winding 4'. Alternatively a generator may be connected to the winding 4'. The aerial may also be used for transmission and may be a closed magnetic circuit which may be provided with leakage shunt. The aerial may function as a wave filter, Fig. 9, showing a low-pass filter. The characteristics of the arrangement are controlled by varying the impedances connected to windings which may be applied to the lateral faces as at X<1>, Y<1> or may be disposed round the magnetic members as at A<1>, B<1>. The whole or part of the magnetic circuit may be surrounded by a conducting tube, which may be movable: The Specification as open to inspection under Sect. 91 (3) (a) comprises also a receiving frame 9, Fig. 12 (Cancelled), and tuning condenser 10, the frame being immersed in a liquid of high specific capacity, for example pure water. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR217245X | 1923-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB217245A true GB217245A (en) | 1925-12-07 |
Family
ID=8881303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13937/24A Expired GB217245A (en) | 1923-06-06 | 1924-06-06 | Improvements in or relating to systems for the propagation and reception of hertzianwaves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB217245A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2581348A (en) * | 1948-04-10 | 1952-01-08 | Int Standard Electric Corp | Antenna |
US3121229A (en) * | 1961-01-31 | 1964-02-11 | Silverstein Abraham | Diverse type underwater antennas responsive to electric and magnetic field components |
WO1980002782A1 (en) * | 1979-05-25 | 1980-12-11 | Tracor | Antenna low-noise q spoiling circuit |
US5093492A (en) * | 1988-03-29 | 1992-03-03 | Basf Aktiengesellschaft | Methine dyes and optical recording medium containing same |
GB2358964A (en) * | 2000-02-05 | 2001-08-08 | Roke Manor Research | Ferromagnetic core cross loop Loran C antenna |
GB2504213A (en) * | 2011-06-29 | 2014-01-22 | Roke Manor Research | Antenna circuit with magnetically coupled sets of sensing and feedback coils |
-
1924
- 1924-06-06 GB GB13937/24A patent/GB217245A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2581348A (en) * | 1948-04-10 | 1952-01-08 | Int Standard Electric Corp | Antenna |
US3121229A (en) * | 1961-01-31 | 1964-02-11 | Silverstein Abraham | Diverse type underwater antennas responsive to electric and magnetic field components |
WO1980002782A1 (en) * | 1979-05-25 | 1980-12-11 | Tracor | Antenna low-noise q spoiling circuit |
EP0029027A1 (en) * | 1979-05-25 | 1981-05-27 | Tracor | Antenna low-noise q spoiling circuit. |
EP0029027A4 (en) * | 1979-05-25 | 1981-08-27 | Tracor | Antenna low-noise q spoiling circuit. |
US5093492A (en) * | 1988-03-29 | 1992-03-03 | Basf Aktiengesellschaft | Methine dyes and optical recording medium containing same |
GB2358964A (en) * | 2000-02-05 | 2001-08-08 | Roke Manor Research | Ferromagnetic core cross loop Loran C antenna |
GB2504213A (en) * | 2011-06-29 | 2014-01-22 | Roke Manor Research | Antenna circuit with magnetically coupled sets of sensing and feedback coils |
GB2504213B (en) * | 2011-06-29 | 2014-05-07 | Roke Manor Research | Antenna circuit with magnetically coupled sets of sensing and feedback coils |
US9234955B2 (en) | 2011-06-29 | 2016-01-12 | Roke Manor Research Limited | Reduced Q low frequency antenna |
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