FR719837A - Improvements to directional shortwave antennas - Google Patents

Improvements to directional shortwave antennas

Info

Publication number
FR719837A
FR719837A FR719837DA FR719837A FR 719837 A FR719837 A FR 719837A FR 719837D A FR719837D A FR 719837DA FR 719837 A FR719837 A FR 719837A
Authority
FR
France
Prior art keywords
directional
shortwave antennas
shortwave
antennas
directional shortwave
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR719837A publication Critical patent/FR719837A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
FR719837D 1930-10-13 1931-07-08 Improvements to directional shortwave antennas Expired FR719837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE375165X 1930-10-13

Publications (1)

Publication Number Publication Date
FR719837A true FR719837A (en) 1932-02-10

Family

ID=6344034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR719837D Expired FR719837A (en) 1930-10-13 1931-07-08 Improvements to directional shortwave antennas

Country Status (3)

Country Link
US (1) US1898661A (en)
FR (1) FR719837A (en)
GB (1) GB375165A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482767A (en) * 1943-09-06 1949-09-27 Sperry Corp Broad band antenna
US2511611A (en) * 1946-09-17 1950-06-13 Hazeltine Research Inc Aperiodic directive antenna system
BE475850A (en) * 1946-09-17
US2503010A (en) * 1948-09-10 1950-04-04 Philco Corp Helical beam antenna
US2616046A (en) * 1949-12-01 1952-10-28 Arthur E Marston Multielement helix antenna
US2640928A (en) * 1949-12-24 1953-06-02 Int Standard Electric Corp Circularly polarized broad band antenna
US2737656A (en) * 1951-12-26 1956-03-06 Ca Nat Research Council Non-resonant antenna
US2871478A (en) * 1954-05-22 1959-01-27 Lander Denis Evald Reinhold Antennas
US3568205A (en) * 1968-02-12 1971-03-02 Goodyear Aerospace Corp Novel helical antenna
US3913107A (en) * 1974-09-06 1975-10-14 Us Navy Noise cancelling magnetic antenna for use with watercraft
US5986621A (en) * 1997-07-03 1999-11-16 Virginia Tech Intellectual Properties, Inc. Stub loaded helix antenna
US8919035B2 (en) 2012-01-27 2014-12-30 Medical Energetics Ltd Agricultural applications of a double helix conductor
US8652023B2 (en) 2012-02-13 2014-02-18 Lifewave, Inc. Health applications of a double helix conductor
US8749333B2 (en) * 2012-04-26 2014-06-10 Lifewave, Inc. System configuration using a double helix conductor
US9504844B2 (en) 2013-06-12 2016-11-29 Medical Energetics Ltd Health applications for using bio-feedback to control an electromagnetic field
US9724531B2 (en) 2013-10-28 2017-08-08 Medical Energetics Ltd. Double helix conductor with light emitting fluids for producing photobiomodulation effects in living organisms
US9636518B2 (en) 2013-10-28 2017-05-02 Medical Energetics Ltd. Nested double helix conductors
US9861830B1 (en) 2013-12-13 2018-01-09 Medical Energetics Ltd. Double helix conductor with winding around core
JP2017510070A (en) 2014-03-05 2017-04-06 メディカル エナジェティクス リミテッド Double helical electrical conductor with 8 connectors and counter rotating field
US9463331B2 (en) 2014-04-07 2016-10-11 Medical Energetics Ltd Using a double helix conductor to treat neuropathic disorders
US9370667B2 (en) 2014-04-07 2016-06-21 Medical Energetics Ltd Double helix conductor for medical applications using stem cell technology
AU2015201169A1 (en) 2014-04-10 2015-10-29 Medical Energetics Ltd. Double helix conductor with counter-rotating fields
US10083786B2 (en) 2015-02-20 2018-09-25 Medical Energetics Ltd. Dual double helix conductors with light sources
US9827436B2 (en) 2015-03-02 2017-11-28 Medical Energetics Ltd. Systems and methods to improve the growth rate of livestock, fish, and other animals
WO2016198265A1 (en) 2015-06-09 2016-12-15 Medical Energetics Ltd. Dual double helix conductors used in agriculture
EP4075457A1 (en) 2015-09-01 2022-10-19 Medical Energetics Ltd. Rotating dual double helix conductors

Also Published As

Publication number Publication date
GB375165A (en) 1932-06-23
US1898661A (en) 1933-02-21

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