BR7404532D0 - Aperfeicoado sistema de antena possuindo um refletor de construcao substancialmente aberta - Google Patents

Aperfeicoado sistema de antena possuindo um refletor de construcao substancialmente aberta

Info

Publication number
BR7404532D0
BR7404532D0 BR4532/74A BR453274A BR7404532D0 BR 7404532 D0 BR7404532 D0 BR 7404532D0 BR 4532/74 A BR4532/74 A BR 4532/74A BR 453274 A BR453274 A BR 453274A BR 7404532 D0 BR7404532 D0 BR 7404532D0
Authority
BR
Brazil
Prior art keywords
perfected
antenna system
substantially open
open construction
reflector
Prior art date
Application number
BR4532/74A
Other languages
English (en)
Portuguese (pt)
Inventor
H Wheeler
Original Assignee
Hazeltine Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23471414&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR7404532(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hazeltine Corp filed Critical Hazeltine Corp
Publication of BR7404532D0 publication Critical patent/BR7404532D0/pt

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
BR4532/74A 1973-06-25 1974-05-31 Aperfeicoado sistema de antena possuindo um refletor de construcao substancialmente aberta BR7404532D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00373203A US3836977A (en) 1973-06-25 1973-06-25 Antenna system having a reflector with a substantially open construction

Publications (1)

Publication Number Publication Date
BR7404532D0 true BR7404532D0 (pt) 1975-01-21

Family

ID=23471414

Family Applications (1)

Application Number Title Priority Date Filing Date
BR4532/74A BR7404532D0 (pt) 1973-06-25 1974-05-31 Aperfeicoado sistema de antena possuindo um refletor de construcao substancialmente aberta

Country Status (15)

Country Link
US (1) US3836977A (nl)
JP (2) JPS591001B2 (nl)
BR (1) BR7404532D0 (nl)
CA (1) CA1011452A (nl)
CS (1) CS191234B2 (nl)
DD (1) DD112551A5 (nl)
DE (1) DE2427505C2 (nl)
FR (1) FR2234671B1 (nl)
GB (1) GB1393081A (nl)
IL (1) IL44559A (nl)
IT (1) IT1010296B (nl)
NL (1) NL183113C (nl)
PL (1) PL90789B1 (nl)
SE (1) SE389769B (nl)
SU (1) SU814289A3 (nl)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836977A (en) * 1973-06-25 1974-09-17 Hazeltine Corp Antenna system having a reflector with a substantially open construction
US4186400A (en) * 1978-06-01 1980-01-29 Grumman Aerospace Corporation Aircraft scanning antenna system with inter-element isolators
DE3224545A1 (de) * 1982-07-01 1984-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Gruppenantenne
GB2135829B (en) * 1983-02-24 1986-04-09 Cossor Electronics Ltd An antenna with a reflector of open construction
JPS60111503A (ja) * 1983-11-21 1985-06-18 Nippon Telegr & Teleph Corp <Ntt> アレイアンテナ装置
JPS60184308U (ja) * 1984-05-17 1985-12-06 三菱電機株式会社 ホ−ンアンテナ
JPS60184309U (ja) * 1984-05-17 1985-12-06 三菱電機株式会社 ホ−ンアンテナ
DE4218544A1 (de) * 1992-06-05 1993-12-16 Abb Patent Gmbh Kurzwellen-Sendeantenne
US5285212A (en) * 1992-09-18 1994-02-08 Radiation Systems, Inc. Self-supporting columnar antenna array
US5606333A (en) * 1995-02-17 1997-02-25 Hazeltine Corporation Low wind resistance antennas using cylindrical radiating and reflector units
US5757246A (en) * 1995-02-27 1998-05-26 Ems Technologies, Inc. Method and apparatus for suppressing passive intermodulation
US5966102A (en) * 1995-12-14 1999-10-12 Ems Technologies, Inc. Dual polarized array antenna with central polarization control
SE511079C2 (sv) * 1996-04-29 1999-08-02 Radio Design Innovation Tj Ab Modulärt antennsystem med en sluten ring av antennpaneler
KR100264817B1 (ko) * 1998-06-09 2000-09-01 박태진 광대역 마이크로스트립 다이폴 안테나 어레이
US8121821B1 (en) 2007-12-19 2012-02-21 The United States Of America As Represented By The Secretary Of The Navy Quasi-static design approach for low Q factor electrically small antennas
US8368156B1 (en) 2007-12-19 2013-02-05 The United States Of America As Represented By The Secretary Of The Navy Dipole moment term for an electrically small antenna
US9281083B2 (en) 2009-04-06 2016-03-08 Terrapower, Llc Traveling wave nuclear fission reactor, fuel assembly, and method of controlling burnup therein
JP6941494B2 (ja) * 2017-07-18 2021-09-29 日本放送協会 エンドツーエンド日本語音声認識モデル学習装置およびプログラム
CN111507104B (zh) 2020-03-19 2022-03-25 北京百度网讯科技有限公司 建立标签标注模型的方法、装置、电子设备和可读存储介质

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480201C (de) * 1924-08-04 1929-07-30 Walter Hahnemann Einrichtung zum eindeutigen gerichteten Senden und Empfangen mittels elektrischer Wellen
BE335661A (nl) * 1925-07-06
FR704953A (fr) * 1930-01-24 1931-05-29 Radio Ind Projecteur d'ondes
US2115789A (en) * 1935-06-04 1938-05-03 Telefunken Gmbh Directional antenna system
NL46871C (nl) * 1936-01-14
FR837998A (fr) * 1937-05-15 1939-02-23 Lorenz C Ag Dispositif d'antenne
US2558727A (en) * 1942-07-01 1951-07-03 Edwin J Bernet Antenna
US3836977A (en) * 1973-06-25 1974-09-17 Hazeltine Corp Antenna system having a reflector with a substantially open construction

Also Published As

Publication number Publication date
IL44559A (en) 1976-09-30
SU814289A3 (ru) 1981-03-15
GB1393081A (en) 1975-05-07
JPS5034141A (nl) 1975-04-02
FR2234671B1 (nl) 1980-03-14
JPS591001B2 (ja) 1984-01-10
IL44559A0 (en) 1974-06-30
DD112551A5 (de) 1975-04-12
DE2427505A1 (de) 1975-01-16
JPS50137655A (nl) 1975-10-31
US3836977A (en) 1974-09-17
AU6580674A (en) 1975-08-21
NL183113B (nl) 1988-02-16
CA1011452A (en) 1977-05-31
SE389769B (sv) 1976-11-15
NL183113C (nl) 1988-07-18
PL90789B1 (nl) 1977-01-31
DE2427505C2 (de) 1985-08-01
IT1010296B (it) 1977-01-10
NL7408568A (nl) 1974-12-30
FR2234671A1 (nl) 1975-01-17
JPS63967B2 (nl) 1988-01-09
CS191234B2 (en) 1979-06-29
SE7403002L (nl) 1974-12-27

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