GB1211725A - Loop antenna - Google Patents
Loop antennaInfo
- Publication number
- GB1211725A GB1211725A GB24663/70A GB2466370A GB1211725A GB 1211725 A GB1211725 A GB 1211725A GB 24663/70 A GB24663/70 A GB 24663/70A GB 2466370 A GB2466370 A GB 2466370A GB 1211725 A GB1211725 A GB 1211725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- aerial
- wound
- core sections
- pieces
- 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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- 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
- H01Q7/08—Ferrite rod or like elongated core
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
1,211,725. Aerials. LTV ELECTROSYSTEMS Inc. 3 Nov., 1967 [9 Dec., 1966], No. 24663/70. Divided out of 1,211,723. Heading H4A. A crossed-loop type aerial comprises an aerial 21, Fig. 3, of the type shown in Fig. 1, in which a closed core 1 of ferromagnetic material consists of core sections 2, 3 with end-pieces 4, 5. Coils 6, 7 are wound on the said core sections and they are so connected that magnetic fluxes due to incident radio waves produce voltages which are additive, whereas the magnetic fluxes induced by a current flowing in the coils are opposed. As shown, the coils 6, 7 are of opposite hands, and their finish ends are connected together. Alternatively, as shown in Fig. 2, coils of the same hand may be wound on core sections 12, 13 (which are adjoined by end-pieces 14, 15) and the finish end t1 of the coil 16 connected to the start end t2 of the coil 17. The core sections on which the coils are wound may be in the form of elongate rods, and the said coils may be distributed over their entire lengths, and have equal numbers of turns. A transverse loop aerial 22, Fig. 3, is wound over the end-pieces of the aerial 21 and over a plurality of ferromagnetic frames 23, such as ferrite rings, which are disposed around the aerial 21 and at intervals along it. The aerials 21, 22 may be utilized to give omnidirectional reception.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60046666A | 1966-12-09 | 1966-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1211725A true GB1211725A (en) | 1970-11-11 |
Family
ID=24403717
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24663/70A Expired GB1211725A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB50094/67A Expired GB1211723A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB24664/70A Expired GB1211726A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB24662/70A Expired GB1211724A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB24665/70A Expired GB1211727A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50094/67A Expired GB1211723A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB24664/70A Expired GB1211726A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB24662/70A Expired GB1211724A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
GB24665/70A Expired GB1211727A (en) | 1966-12-09 | 1967-11-03 | Loop antenna |
Country Status (2)
Country | Link |
---|---|
US (1) | US3495264A (en) |
GB (5) | GB1211725A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106803120A (en) * | 2015-11-26 | 2017-06-06 | 惠州市三和物联网科技有限公司 | A kind of electronic label antenna with anti-shielding function |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3634888A (en) * | 1970-05-01 | 1972-01-11 | John J Reidy | Ferrite loop antenna for vehicle mounting |
US3683389A (en) * | 1971-01-20 | 1972-08-08 | Corning Glass Works | Omnidirectional loop antenna array |
US3721989A (en) * | 1971-06-30 | 1973-03-20 | Northrop Corp | Cross loop antenna |
US3719950A (en) * | 1971-11-03 | 1973-03-06 | A Bukhman | Antenna system for vhf and uhf radio direction finders |
US3872455A (en) * | 1971-11-17 | 1975-03-18 | Monitron Ind | Physiological measurement display system |
US4109223A (en) * | 1975-09-29 | 1978-08-22 | Ndm Corporation | Multiple choke assembly |
US4290070A (en) * | 1979-05-09 | 1981-09-15 | Osamu Tanaka | Magnetic loop antenna with diamagnetic properties |
JPS61128609A (en) * | 1984-11-27 | 1986-06-16 | Toyota Motor Corp | Antenna device for automobile |
US5159332A (en) * | 1989-06-05 | 1992-10-27 | Walton Charles A | Proximity identification system with flux concentration in operating region |
CH682265A5 (en) * | 1991-02-12 | 1993-08-13 | Actron Entwicklungs Ag | |
KR100459839B1 (en) * | 1995-08-22 | 2005-02-07 | 미쓰비시 마테리알 가부시키가이샤 | Antennas and transponders for transponders |
US6014111A (en) * | 1997-06-05 | 2000-01-11 | Megapulse, Inc. | Ferrite crossed-loop antenna of optimal geometry and construction and method of forming same |
US6974437B2 (en) * | 2000-01-21 | 2005-12-13 | Medtronic Minimed, Inc. | Microprocessor controlled ambulatory medical apparatus with hand held communication device |
GB2358964A (en) * | 2000-02-05 | 2001-08-08 | Roke Manor Research | Ferromagnetic core cross loop Loran C antenna |
JP2003218625A (en) * | 2002-01-04 | 2003-07-31 | Dafang Electronic Co Ltd | Loop antenna system and wireless transmission device |
US7729766B2 (en) | 2003-10-02 | 2010-06-01 | Medtronic, Inc. | Circuit board construction for handheld programmer |
US7991479B2 (en) * | 2003-10-02 | 2011-08-02 | Medtronic, Inc. | Neurostimulator programmer with clothing attachable antenna |
US8442643B2 (en) * | 2003-10-02 | 2013-05-14 | Medtronic, Inc. | Medical device programmer with reduced-noise power supply |
US7272445B2 (en) * | 2003-10-02 | 2007-09-18 | Medtronic, Inc. | Medical device programmer with faceplate |
US7561921B2 (en) * | 2003-10-02 | 2009-07-14 | Medtronic, Inc. | Neurostimulator programmer with internal antenna |
US7203549B2 (en) * | 2003-10-02 | 2007-04-10 | Medtronic, Inc. | Medical device programmer with internal antenna and display |
US7356369B2 (en) * | 2003-10-02 | 2008-04-08 | Medtronic, Inc. | Z-axis assembly of medical device programmer |
US7263406B2 (en) * | 2003-10-02 | 2007-08-28 | Medtronic, Inc. | Medical device programmer with selective disablement of display during telemetry |
US20050075685A1 (en) * | 2003-10-02 | 2005-04-07 | Forsberg John W. | Medical device programmer with infrared communication |
JP5162648B2 (en) * | 2010-12-01 | 2013-03-13 | デクセリアルズ株式会社 | ANTENNA DEVICE AND COMMUNICATION DEVICE |
US8957753B2 (en) * | 2011-11-22 | 2015-02-17 | Abb Technology Ag | Current transformer |
US9755765B2 (en) * | 2014-06-23 | 2017-09-05 | Raytheon Company | Magnetic antennas for ultra low frequency and very low frequency radiation |
US20170155285A1 (en) * | 2015-11-30 | 2017-06-01 | Electronics And Telecommunications Research Institute | Open type resonance coil without dual loops having serial type in-phase direct power feeding method without dual loops |
US11183328B2 (en) * | 2016-08-19 | 2021-11-23 | Maxim Integrated Products, Inc. | Coupled inductors for low electromagnetic interference |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2375593A (en) * | 1943-04-01 | 1945-05-08 | Rca Corp | Reception of signals on a loop antenna |
US2955286A (en) * | 1958-02-24 | 1960-10-04 | Internat Res & Dev Corp | Plural loop antenna having ferrite cores |
-
1966
- 1966-12-09 US US600466A patent/US3495264A/en not_active Expired - Lifetime
-
1967
- 1967-11-03 GB GB24663/70A patent/GB1211725A/en not_active Expired
- 1967-11-03 GB GB50094/67A patent/GB1211723A/en not_active Expired
- 1967-11-03 GB GB24664/70A patent/GB1211726A/en not_active Expired
- 1967-11-03 GB GB24662/70A patent/GB1211724A/en not_active Expired
- 1967-11-03 GB GB24665/70A patent/GB1211727A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106803120A (en) * | 2015-11-26 | 2017-06-06 | 惠州市三和物联网科技有限公司 | A kind of electronic label antenna with anti-shielding function |
Also Published As
Publication number | Publication date |
---|---|
GB1211726A (en) | 1970-11-11 |
GB1211724A (en) | 1970-11-11 |
GB1211723A (en) | 1970-11-11 |
GB1211727A (en) | 1970-11-11 |
US3495264A (en) | 1970-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PLNP | Patent lapsed through nonpayment of renewal fees |