GB1334499A - Antenna system - Google Patents
Antenna systemInfo
- Publication number
- GB1334499A GB1334499A GB3456072A GB3456072A GB1334499A GB 1334499 A GB1334499 A GB 1334499A GB 3456072 A GB3456072 A GB 3456072A GB 3456072 A GB3456072 A GB 3456072A GB 1334499 A GB1334499 A GB 1334499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- coil
- apertures
- aerial
- magnetic
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F7/00—Parametric amplifiers
- H03F7/02—Parametric amplifiers using variable-inductance element; using variable-permeability element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/08—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F29/146—Constructional details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
1334499 Aerials; magnetic amplifiers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 July 1972 [22 July 1971] 34560/72 Headings H4A and H3B An aerial system comprises a magnetic core 7 formed with a plurality of apertures 8, 8<SP>1</SP>, a first coil 12 which is wound on part of the core between the apertures, and which serves as a pumping coil for changing the permeability of said core, two coils 9, 11 with their windings disposed perpendicularly to that of the coil 12 and linked by magnetic flux therefrom, a load connected to the coil 11, and an aerial element connected to the coil 9. All turns of the winding 11 pass through the apertures 8, 8<SP>1</SP>, whereas only a part of the turns of the winding 9 pass through said apertures, the remaining turns thereof being disposed around the whole body of the core 7. Parametric amplification of the signal from the aerial element may be obtained with this system (Figs. 6, 7, not shown). Magnetic biasing may be provided by permanent magnets. These may either be in contact with a face of the core (and if made of ferrite be disposed within coil windings) or be spaced from the core by non- magnetic spacers (Figs. 8 to 13, not shown). An aerial array may be constituted from a plurality of such aerial systems, and the beam therefrom may be steered by suitable adjustment of the amplitude and phase of the pumping current in each system (Fig. 14, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5500371A JPS5330976B1 (en) | 1971-07-22 | 1971-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1334499A true GB1334499A (en) | 1973-10-17 |
Family
ID=12986463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3456072A Expired GB1334499A (en) | 1971-07-22 | 1972-07-24 | Antenna system |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3750180A (en) |
| JP (1) | JPS5330976B1 (en) |
| CA (1) | CA961935A (en) |
| DE (1) | DE2235958A1 (en) |
| FR (1) | FR2146477B1 (en) |
| GB (1) | GB1334499A (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588994A (en) * | 1982-10-18 | 1986-05-13 | Hughes Aircraft Company | Continuous ferrite aperture for electronic scanning antennas |
| US4827272A (en) * | 1984-06-04 | 1989-05-02 | Davis Murray W | Overhead power line clamp and antenna |
| KR100459839B1 (en) * | 1995-08-22 | 2005-02-07 | 미쓰비시 마테리알 가부시키가이샤 | Antennas and transponders for transponders |
| US6061030A (en) * | 1996-11-01 | 2000-05-09 | Plantronics, Inc. | Aerial arrays for magnetic induction communication systems having limited power supplies |
| US6134420A (en) * | 1996-11-01 | 2000-10-17 | Plantronics, Inc. | Vector measuring aerial arrays for magnetic induction communication systems |
| FR2808943B1 (en) * | 2000-05-12 | 2004-10-01 | Valeo Electronique | IDENTIFIER FOR "HANDS-FREE ACCESS AND STARTING" SYSTEM WITH A TRANSMITTER AND / OR RECEIVER COIL PLACED IN THE THICKNESS OF THE SUBSTRATE |
| US6396454B1 (en) * | 2000-06-23 | 2002-05-28 | Cue Corporation | Radio unit for computer systems |
| US6563474B2 (en) * | 2000-12-21 | 2003-05-13 | Lear Corporation | Remote access device having multiple inductive coil antenna |
| DE10207295A1 (en) * | 2002-02-21 | 2003-09-04 | Arvinmeritor Gmbh | Body attachment part and method for its production |
| US7209090B2 (en) * | 2003-06-16 | 2007-04-24 | Sensormatic Electronics Corporation | High efficiency core antenna and construction method |
| US7161551B2 (en) * | 2003-10-09 | 2007-01-09 | Casio Computer Co., Ltd. | Antenna and wristwatch |
| WO2009078214A1 (en) * | 2007-12-18 | 2009-06-25 | Murata Manufacturing Co., Ltd. | Magnetic material antenna and antenna device |
| US20160005530A1 (en) * | 2014-07-02 | 2016-01-07 | Analog Devices Global | Inductive component for use in an integrated circuit, a transformer and an inductor formed as part of an integrated circuit |
| JP6887624B2 (en) * | 2016-08-15 | 2021-06-16 | 学校法人自治医科大学 | Autism spectrum disorder and psychiatric disorder improving agents |
| US11404197B2 (en) | 2017-06-09 | 2022-08-02 | Analog Devices Global Unlimited Company | Via for magnetic core of inductive component |
| DE102018102895B4 (en) | 2018-02-09 | 2019-10-24 | SUMIDA Components & Modules GmbH | Ferrite rod antenna and transmitting and receiving unit with corresponding ferrite rod antenna |
| RU2687849C1 (en) * | 2018-07-04 | 2019-05-16 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Receiving magnetic antenna |
| EP3943078A4 (en) | 2019-03-20 | 2023-01-18 | National University Corporation Kagawa University | Drug carrier utilizing property of d-allose being uptaken by cancer cell, drug delivery method, and composition for treating renal cell carcinoma |
| US20220184105A1 (en) | 2019-03-26 | 2022-06-16 | National University Corporation Kagawa University | Pharmaceutical composition injectable into urinary tract organ cavity for prevention or treatment of urothelial cancer |
| US20220175931A1 (en) | 2019-03-29 | 2022-06-09 | National University Corporation Kagawa University | Osmotic pressure regulator for peritoneal dialysate containing d-allose and/or d-allulose |
| MX2022011932A (en) | 2020-03-26 | 2022-10-20 | Univ Kagawa Nat Univ Corp | Novel l-rhamnose isomerase. |
| CN116783300A (en) | 2020-11-30 | 2023-09-19 | 国立大学法人香川大学 | Novel L-rhamnose isomerase |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665476A (en) * | 1965-12-01 | 1972-05-23 | Singer Co | Antenna |
| US3564551A (en) * | 1970-01-14 | 1971-02-16 | Harry A Mills | Dipole antenna with electrically tuned ferrite sleeves |
-
1971
- 1971-07-22 JP JP5500371A patent/JPS5330976B1/ja active Pending
-
1972
- 1972-07-21 DE DE2235958A patent/DE2235958A1/en active Pending
- 1972-07-21 US US00273694A patent/US3750180A/en not_active Expired - Lifetime
- 1972-07-21 FR FR7226404A patent/FR2146477B1/fr not_active Expired
- 1972-07-21 CA CA147,655A patent/CA961935A/en not_active Expired
- 1972-07-24 GB GB3456072A patent/GB1334499A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2146477A1 (en) | 1973-03-02 |
| CA961935A (en) | 1975-01-28 |
| FR2146477B1 (en) | 1977-07-22 |
| JPS5330976B1 (en) | 1978-08-30 |
| US3750180A (en) | 1973-07-31 |
| DE2235958A1 (en) | 1973-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PE20 | Patent expired after termination of 20 years |