NL83707C - - Google Patents

Info

Publication number
NL83707C
NL83707C NL83707DA NL83707C NL 83707 C NL83707 C NL 83707C NL 83707D A NL83707D A NL 83707DA NL 83707 C NL83707 C NL 83707C
Authority
NL
Netherlands
Application number
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.)
Publication of NL83707C publication Critical patent/NL83707C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
    • 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
    • H01Q19/15—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 the primary radiating source being a line source, e.g. leaky waveguide antennas
NL83707D 1948-12-29 NL83707C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2663016X 1948-12-29

Publications (1)

Publication Number Publication Date
NL83707C true NL83707C (enrdf_load_stackoverflow)

Family

ID=9687698

Family Applications (2)

Application Number Title Priority Date Filing Date
NL83707D NL83707C (enrdf_load_stackoverflow) 1948-12-29
NL646405888A NL146717B (nl) 1948-12-29 Inrichting voor het uitvoeren van een exothermegasreactie met katalysatorbedden en een warmtewisselaar.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL646405888A NL146717B (nl) 1948-12-29 Inrichting voor het uitvoeren van een exothermegasreactie met katalysatorbedden en een warmtewisselaar.

Country Status (2)

Country Link
US (1) US2663016A (enrdf_load_stackoverflow)
NL (2) NL146717B (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE569719A (enrdf_load_stackoverflow) * 1957-07-26
US3881178A (en) * 1973-04-03 1975-04-29 Hazeltine Corp Antenna system for radiating multiple planar beams
FR2653941B1 (fr) * 1989-10-31 1992-02-28 Thomson Lgt Antenne de reception multifocale a direction de pointage unique pour plusieurs satellites.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039812A (en) * 1929-12-03 1936-05-05 Telefunken Gmbh Signaling system
US2217321A (en) * 1935-06-01 1940-10-08 Telefunken Gmbh Beam antenna
US2408435A (en) * 1941-03-01 1946-10-01 Bell Telephone Labor Inc Pipe antenna and prism
US2367764A (en) * 1942-01-30 1945-01-23 Rca Corp Frequency modulation detection system
US2426992A (en) * 1942-05-27 1947-09-09 Sperry Gyroscope Co Inc Glide path transmitter
US2435988A (en) * 1943-11-22 1948-02-17 Sperry Corp Aircraft landing system
US2530580A (en) * 1946-10-30 1950-11-21 Rca Corp Multichannel signaling system

Also Published As

Publication number Publication date
NL146717B (nl)
US2663016A (en) 1953-12-15

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