CA1238714A - Shaped beam antenna - Google Patents

Shaped beam antenna

Info

Publication number
CA1238714A
CA1238714A CA000489794A CA489794A CA1238714A CA 1238714 A CA1238714 A CA 1238714A CA 000489794 A CA000489794 A CA 000489794A CA 489794 A CA489794 A CA 489794A CA 1238714 A CA1238714 A CA 1238714A
Authority
CA
Canada
Prior art keywords
reflector
antenna
axis
shaped beam
plane
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
CA000489794A
Other languages
English (en)
French (fr)
Inventor
Hajime Seki
Mitsuhiro Kusano
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP18429084A external-priority patent/JPS6162208A/ja
Priority claimed from JP18428884A external-priority patent/JPS6162211A/ja
Priority claimed from JP16734885A external-priority patent/JPS6229205A/ja
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of CA1238714A publication Critical patent/CA1238714A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0233—Horns fed by a slotted waveguide array
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043—Slotted waveguides

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
CA000489794A 1984-09-03 1985-08-30 Shaped beam antenna Expired CA1238714A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP184290/'84 1984-09-03
JP18429084A JPS6162208A (ja) 1984-09-03 1984-09-03 反射板付きアレイアンテナ
JP18428884A JPS6162211A (ja) 1984-09-03 1984-09-03 筒状鏡面付きアレイアンテナ
JP184288/'84 1984-09-03
JP167348/'85 1985-07-29
JP16734885A JPS6229205A (ja) 1985-07-29 1985-07-29 電波吸収体付加反射板付きアレイアンテナ

Publications (1)

Publication Number Publication Date
CA1238714A true CA1238714A (en) 1988-06-28

Family

ID=27322840

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000489794A Expired CA1238714A (en) 1984-09-03 1985-08-30 Shaped beam antenna

Country Status (3)

Country Link
EP (1) EP0174579A3 (de)
AU (1) AU4696485A (de)
CA (1) CA1238714A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0185962B1 (ko) * 1995-03-03 1999-05-15 구관영 안테나 측면 복사에너지를 최소화한 안테나
US6570540B2 (en) * 2001-09-14 2003-05-27 The Boeing Company Reflector assembly for minimizing reflections of electromagnetic energy from an antenna disposed within a radome
CN114930735B (zh) * 2019-11-21 2026-02-06 瑞典爱立信有限公司 用于分布式天线系统的室内天花板无线电单元
US11901601B2 (en) 2020-12-18 2024-02-13 Aptiv Technologies Limited Waveguide with a zigzag for suppressing grating lobes
US12058804B2 (en) 2021-02-09 2024-08-06 Aptiv Technologies AG Formed waveguide antennas of a radar assembly
US11962085B2 (en) 2021-05-13 2024-04-16 Aptiv Technologies AG Two-part folded waveguide having a sinusoidal shape channel including horn shape radiating slots formed therein which are spaced apart by one-half wavelength
US11616282B2 (en) 2021-08-03 2023-03-28 Aptiv Technologies Limited Transition between a single-ended port and differential ports having stubs that match with input impedances of the single-ended and differential ports
US12456816B2 (en) 2022-05-02 2025-10-28 Aptiv Technologies AG Waveguide with slot antennas and reflectors
US12537308B2 (en) 2023-01-24 2026-01-27 Aptiv Technologies AG Symmetrical two-piece waveguide
US12148992B2 (en) 2023-01-25 2024-11-19 Aptiv Technologies AG Hybrid horn waveguide antenna
EP4418457A1 (de) * 2023-02-15 2024-08-21 Nokia Technologies Oy Vorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882134A (en) * 1959-08-25 1961-11-15 Decca Record Co Ltd Improvements in or relating to directional aerical systems
US3604010A (en) * 1969-01-30 1971-09-07 Singer General Precision Antenna array system for generating shaped beams for guidance during aircraft landing
GB2044006B (en) * 1978-11-23 1983-01-06 Decca Ltd Radar antenna
US4464663A (en) * 1981-11-19 1984-08-07 Ball Corporation Dual polarized, high efficiency microstrip antenna

Also Published As

Publication number Publication date
AU4696485A (en) 1986-03-13
EP0174579A3 (de) 1987-06-03
EP0174579A2 (de) 1986-03-19

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Legal Events

Date Code Title Description
MKEX Expiry