NL230802A - - Google Patents

Info

Publication number
NL230802A
NL230802A NL230802DA NL230802A NL 230802 A NL230802 A NL 230802A NL 230802D A NL230802D A NL 230802DA NL 230802 A NL230802 A NL 230802A
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 NL230802A publication Critical patent/NL230802A/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
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/38—Circulators
    • 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
    • H01Q19/17—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 comprising two or more radiating elements
NL230802D 1957-09-16 NL230802A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US684026A US2956276A (en) 1957-09-16 1957-09-16 Diversity system

Publications (1)

Publication Number Publication Date
NL230802A true NL230802A (xx)

Family

ID=24746420

Family Applications (2)

Application Number Title Priority Date Filing Date
NL113271D NL113271C (xx) 1957-09-16
NL230802D NL230802A (xx) 1957-09-16

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL113271D NL113271C (xx) 1957-09-16

Country Status (6)

Country Link
US (1) US2956276A (xx)
BE (1) BE571122A (xx)
DE (1) DE1226667B (xx)
FR (1) FR1210219A (xx)
GB (1) GB890296A (xx)
NL (2) NL230802A (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144647A (en) * 1959-12-01 1964-08-11 Itt Diversity system
US3209260A (en) * 1961-03-16 1965-09-28 Itt Beyond-the-horizon communication system for air vehicles
DE1273016B (de) * 1961-11-16 1968-07-18 Telefunken Patent Mehrkanalige Scattering-UEbertragungsanlage fuer Zweifach-Raumdiversity
DE3336610A1 (de) * 1983-10-07 1985-04-25 Hörmann GmbH, 8011 Kirchseeon Mikrowellenschranke
HU191949B (en) * 1984-09-10 1987-04-28 Tavkoezlesi Kutato Intezet Method and equipment for the transmission of information by means of open-air propagation with electromagnetic waves of directed beam of rays, of wave length below 10 mm
JP2008519964A (ja) * 2004-11-12 2008-06-12 ブイエフエス・テクノロジーズ・リミテッド 流れ決定方法及び装置
US7623084B2 (en) * 2006-09-12 2009-11-24 General Dynamics C4 Systems, Inc. Angular diversity antenna system and feed assembly for same
TWI609529B (zh) * 2015-10-29 2017-12-21 建漢科技股份有限公司 使用於碟盤天線的多元接收器設備與系統

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1667792A (en) * 1923-01-11 1928-05-01 American Telephone & Telegraph Radio signaling system
US2312093A (en) * 1938-11-23 1943-02-23 Rca Corp Radiant energy signaling system
BE459653A (xx) * 1944-05-24
US2585173A (en) * 1948-07-01 1952-02-12 Raytheon Mfg Co Radio-frequency transmission line circuit
US2627020A (en) * 1949-05-28 1953-01-27 William S Parnell Two-feed "x" band antenna
US2803817A (en) * 1952-08-18 1957-08-20 Francis A Marasco Radar antenna lobing power-divider

Also Published As

Publication number Publication date
BE571122A (xx)
FR1210219A (fr) 1960-03-07
DE1226667B (de) 1966-10-13
US2956276A (en) 1960-10-11
GB890296A (en) 1962-02-28
NL113271C (xx)

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