FR693923A - Improvements in the propagation of radio waves - Google Patents

Improvements in the propagation of radio waves

Info

Publication number
FR693923A
FR693923A FR693923DA FR693923A FR 693923 A FR693923 A FR 693923A FR 693923D A FR693923D A FR 693923DA FR 693923 A FR693923 A FR 693923A
Authority
FR
France
Prior art keywords
propagation
radio waves
waves
radio
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)
Inventor
Roberto Clemens Galletti
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Application granted granted Critical
Publication of FR693923A publication Critical patent/FR693923A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
FR693923D 1929-05-01 1930-04-15 Improvements in the propagation of radio waves Expired FR693923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1352929A GB330710A (en) 1929-05-01 1929-05-01 Improvements in and relating to the propagation of wireless waves

Publications (1)

Publication Number Publication Date
FR693923A true FR693923A (en) 1930-11-26

Family

ID=10024624

Family Applications (1)

Application Number Title Priority Date Filing Date
FR693923D Expired FR693923A (en) 1929-05-01 1930-04-15 Improvements in the propagation of radio waves

Country Status (2)

Country Link
FR (1) FR693923A (en)
GB (1) GB330710A (en)

Also Published As

Publication number Publication date
GB330710A (en) 1930-06-19

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