IL44559A - Antenna system utilizing a reflector - Google Patents

Antenna system utilizing a reflector

Info

Publication number
IL44559A
IL44559A IL44559A IL4455974A IL44559A IL 44559 A IL44559 A IL 44559A IL 44559 A IL44559 A IL 44559A IL 4455974 A IL4455974 A IL 4455974A IL 44559 A IL44559 A IL 44559A
Authority
IL
Israel
Prior art keywords
antenna system
specified
columns
antenna
elements
Prior art date
Application number
IL44559A
Other languages
Hebrew (he)
Other versions
IL44559A0 (en
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=IL44559(A) "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 IL44559A0 publication Critical patent/IL44559A0/en
Publication of IL44559A publication Critical patent/IL44559A/en

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)

Claims (12)

FF 4072 PATENT CLAIMS R 3909.02
1. An antenna system having a reflector with an open construction comprising a reflective grid of substantiall parallel conductive columns, at least one linearly polarized antenna element for radiating wave energy, arranged with the polarization of said element substantially parallel to said columns; and means for supporting said antenna element and said columns, characterized in that improved suppression of radiation leakage through said reflector is obtained by the presence of a plurality of colinear arrays of selectively tuned reflective elements, said arrays being substantially parallel to said columns and selectively interspersed with said columns and also supported on said supporting means.
2. An antenna system as specified in claim 1 characterized in that there are a plurality of said antenna elements and said antenna elements are mounted on at least some of said columns.
3. An antenna system as specified in claim 2 characterized in that the system additionally includes transmission lines for supplying energy to said antenna elements, which transmission lines are located within the conductive columns supporting the corresponding
4. An antenna system as specified in claim 1, 2 or 3 characterized in that said grid of conductive columns is a planar grid.
5. An antenna system as specified in any of the preceding claims characterized in that said parallel conductive columns are equally spaced in said planar grid.
6. An antenna system as specified in any of the preceding claims, characterized in that said spacing between adjacent columns is less than one wavelength at the operating frequency of the antenna system.
7. An antenna system as specified in any of the preceding claims, characterized in that said antenna elements are dipoles.
8. An antenna system as specified in any of the preceding claims, characterized in that there is one of said arrays located in every space between adjacent conductive columns in said grid.
9. An antenna system as specified in claim 8, characterized in that each of said arrays is equidistant from said adjacent conductive columns.
10. An antenna system as specified in any of the preceding claims, characterized in that each of said reflective elements is a conductive element, effectively near one-half wavelength in length at the operating frequency of said antenna system.
11. An antenna system as specified in claims 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that said reflective elements are conductive elements less than one-half wavelenth in length at the operating frequency of said antenna system and are selectively tuned by adjusting the spacing between adjacent elements in said colinear array.
12. An antenna system as specified in any of the preceding claims, characterized in that each of said arrays comprises a column of insulating material having a plurality of conductive reflective elements mounted thereon.
IL44559A 1973-06-25 1974-04-03 Antenna system utilizing a reflector IL44559A (en)

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 (2)

Publication Number Publication Date
IL44559A0 IL44559A0 (en) 1974-06-30
IL44559A true IL44559A (en) 1976-09-30

Family

ID=23471414

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44559A IL44559A (en) 1973-06-25 1974-04-03 Antenna system utilizing a reflector

Country Status (15)

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

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 (en) * 1982-07-01 1984-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt GROUP ANTENNA
GB2135829B (en) * 1983-02-24 1986-04-09 Cossor Electronics Ltd An antenna with a reflector of open construction
JPS60111503A (en) * 1983-11-21 1985-06-18 Nippon Telegr & Teleph Corp <Ntt> Array antenna device
JPS60184308U (en) * 1984-05-17 1985-12-06 三菱電機株式会社 horn antenna
JPS60184309U (en) * 1984-05-17 1985-12-06 三菱電機株式会社 horn antenna
DE4218544A1 (en) * 1992-06-05 1993-12-16 Abb Patent Gmbh Shortwave transmitter antenna
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 (en) * 1996-04-29 1999-08-02 Radio Design Innovation Tj Ab Modular antenna system with a closed ring of antenna panels
KR100264817B1 (en) * 1998-06-09 2000-09-01 박태진 Wideband microstrip dipole antenna array
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 (en) * 2017-07-18 2021-09-29 日本放送協会 End-to-end Japanese speech recognition model learning device and program
CN111507104B (en) * 2020-03-19 2022-03-25 北京百度网讯科技有限公司 Method and device for establishing label labeling model, electronic equipment and readable storage medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480201C (en) * 1924-08-04 1929-07-30 Walter Hahnemann Device for clearly directed sending and receiving by means of electrical waves
BE335661A (en) * 1925-07-06
FR704953A (en) * 1930-01-24 1931-05-29 Radio Ind Wave projector
US2115789A (en) * 1935-06-04 1938-05-03 Telefunken Gmbh Directional antenna system
NL46871C (en) * 1936-01-14
FR837998A (en) * 1937-05-15 1939-02-23 Lorenz C Ag Antenna device
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
CA1011452A (en) 1977-05-31
NL183113C (en) 1988-07-18
SU814289A3 (en) 1981-03-15
AU6580674A (en) 1975-08-21
SE7403002L (en) 1974-12-27
JPS591001B2 (en) 1984-01-10
JPS5034141A (en) 1975-04-02
NL183113B (en) 1988-02-16
DE2427505A1 (en) 1975-01-16
US3836977A (en) 1974-09-17
NL7408568A (en) 1974-12-30
CS191234B2 (en) 1979-06-29
BR7404532D0 (en) 1975-01-21
FR2234671A1 (en) 1975-01-17
PL90789B1 (en) 1977-01-31
DD112551A5 (en) 1975-04-12
JPS50137655A (en) 1975-10-31
JPS63967B2 (en) 1988-01-09
GB1393081A (en) 1975-05-07
IT1010296B (en) 1977-01-10
SE389769B (en) 1976-11-15
DE2427505C2 (en) 1985-08-01
FR2234671B1 (en) 1980-03-14
IL44559A0 (en) 1974-06-30

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