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FR667774A - Improvements to telegraphy and wire-line telephony antenna systems - Google Patents

Improvements to telegraphy and wire-line telephony antenna systems

Info

Publication number
FR667774A
FR667774A FR667774DA FR667774A FR 667774 A FR667774 A FR 667774A FR 667774D A FR667774D A FR 667774DA FR 667774 A FR667774 A FR 667774A
Authority
FR
France
Prior art keywords
telegraphy
wire
antenna systems
line telephony
telephony antenna
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR667774A publication Critical patent/FR667774A/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
    • H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
FR667774D 1928-01-26 1929-01-19 Improvements to telegraphy and wire-line telephony antenna systems Expired FR667774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2610/28A GB310451A (en) 1928-01-26 1928-01-26 Improvements in or relating to wireless telegraphy and telephony, and aerial systemstherefor

Publications (1)

Publication Number Publication Date
FR667774A true FR667774A (en) 1929-10-21

Family

ID=9742596

Family Applications (1)

Application Number Title Priority Date Filing Date
FR667774D Expired FR667774A (en) 1928-01-26 1929-01-19 Improvements to telegraphy and wire-line telephony antenna systems

Country Status (4)

Country Link
US (1) US1907945A (en)
DE (1) DE491605C (en)
FR (1) FR667774A (en)
GB (1) GB310451A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622198A (en) * 1950-08-23 1952-12-16 Philco Corp Phased antenna array
US7250917B1 (en) 2004-01-14 2007-07-31 Thompson Louis H Directional wire antennas for radio frequency identification tag system

Also Published As

Publication number Publication date
US1907945A (en) 1933-05-09
GB310451A (en) 1929-04-26
DE491605C (en) 1930-02-15

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