IT7923577A0 - Antenne direzionali a cortina. - Google Patents

Antenne direzionali a cortina.

Info

Publication number
IT7923577A0
IT7923577A0 IT7923577A IT2357779A IT7923577A0 IT 7923577 A0 IT7923577 A0 IT 7923577A0 IT 7923577 A IT7923577 A IT 7923577A IT 2357779 A IT2357779 A IT 2357779A IT 7923577 A0 IT7923577 A0 IT 7923577A0
Authority
IT
Italy
Prior art keywords
antennas
directional
curtain antennas
directional curtain
curtain
Prior art date
Application number
IT7923577A
Other languages
English (en)
Other versions
IT1121399B (it
Original Assignee
Plessey Handel Investment Ag
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
Application filed by Plessey Handel Investment Ag filed Critical Plessey Handel Investment Ag
Publication of IT7923577A0 publication Critical patent/IT7923577A0/it
Application granted granted Critical
Publication of IT1121399B publication Critical patent/IT1121399B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
IT23577/79A 1978-06-15 1979-06-14 Antenne direzionali a cortina IT1121399B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB7826990 1978-06-15
GB7827647 1978-06-22
GB7829946 1978-07-14

Publications (2)

Publication Number Publication Date
IT7923577A0 true IT7923577A0 (it) 1979-06-14
IT1121399B IT1121399B (it) 1986-04-02

Family

ID=27260558

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23577/79A IT1121399B (it) 1978-06-15 1979-06-14 Antenne direzionali a cortina

Country Status (6)

Country Link
US (1) US4318104A (it)
AU (1) AU531239B2 (it)
CA (1) CA1121910A (it)
DE (1) DE2924141A1 (it)
FR (1) FR2428925A1 (it)
IT (1) IT1121399B (it)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321605A (en) * 1980-01-29 1982-03-23 Hazeltine Corporation Array antenna system
GB2088168B (en) * 1980-11-19 1984-06-13 Plessey Co Ltd Improvements in or relating to target detection systems
US4503336A (en) * 1982-06-14 1985-03-05 Itek Corporation Beam former having variable delays between LED output signals
FR2541518A1 (fr) * 1982-10-26 1984-08-24 Thomson Csf Dispositif d'alimentation d'une antenne reseau a faisceau de balayage
US4489324A (en) * 1982-11-30 1984-12-18 Blume Alan E Low sidelobe phased array antenna system
US5028930A (en) * 1988-12-29 1991-07-02 Westinghouse Electric Corp. Coupling matrix for a circular array microwave antenna
US5047785A (en) * 1990-05-31 1991-09-10 Hughes Aircraft Company Split-phase technique for eliminating pattern nulls from a discrete guard antenna array
DE19756363A1 (de) * 1997-12-18 1999-06-24 Cit Alcatel Antennenspeiseanordnung
US6731904B1 (en) 1999-07-20 2004-05-04 Andrew Corporation Side-to-side repeater
US6934511B1 (en) 1999-07-20 2005-08-23 Andrew Corporation Integrated repeater
US6266011B1 (en) 1999-09-30 2001-07-24 Rockwell Science Center, Llc Electronically scanned phased array antenna system and method with scan control independent of radiating frequency
US6448930B1 (en) 1999-10-15 2002-09-10 Andrew Corporation Indoor antenna
AU2001234463A1 (en) 2000-01-14 2001-07-24 Andrew Corporation Repeaters for wireless communication systems
US6667712B2 (en) * 2001-11-20 2003-12-23 Telefonaktiebolaget Lm Ericsson (Publ) Downlink load sharing by nulling, beam steering and beam selection
US7623868B2 (en) * 2002-09-16 2009-11-24 Andrew Llc Multi-band wireless access point comprising coextensive coverage regions
US6885343B2 (en) 2002-09-26 2005-04-26 Andrew Corporation Stripline parallel-series-fed proximity-coupled cavity backed patch antenna array
US20040203804A1 (en) * 2003-01-03 2004-10-14 Andrew Corporation Reduction of intermodualtion product interference in a network having sectorized access points
US6868043B1 (en) * 2003-02-20 2005-03-15 Bbnt Solutions Llc Beam broadening with maximum power in array transducers
US7081851B1 (en) * 2005-02-10 2006-07-25 Raytheon Company Overlapping subarray architecture
FR2894080B1 (fr) * 2005-11-28 2009-10-30 Alcatel Sa Antenne reseau a maillage irregulier et eventuelle redondance froide
US10516219B2 (en) 2009-04-13 2019-12-24 Viasat, Inc. Multi-beam active phased array architecture with independent polarization control
US8817672B2 (en) 2009-04-13 2014-08-26 Viasat, Inc. Half-duplex phased array antenna system
TWI517499B (zh) * 2009-04-13 2016-01-11 凡爾賽特公司 主動式巴特勒矩陣、主動式布拉斯矩陣子單元、主動式布拉斯矩陣以及波束形成網路設備
US8693970B2 (en) 2009-04-13 2014-04-08 Viasat, Inc. Multi-beam active phased array architecture with independant polarization control
JP2011064584A (ja) * 2009-09-17 2011-03-31 Denso Corp アレーアンテナ装置及びレーダ装置
WO2011095896A1 (en) 2010-02-08 2011-08-11 Dalhousie University Ultrasound imaging system using beamforming techniques for phase coherence grating lobe suppression
US8737531B2 (en) 2011-11-29 2014-05-27 Viasat, Inc. Vector generator using octant symmetry
US8699626B2 (en) 2011-11-29 2014-04-15 Viasat, Inc. General purpose hybrid
EP3127251B1 (en) * 2014-04-04 2019-06-26 Telefonaktiebolaget LM Ericsson (publ) Signal distribution network
CN106685495A (zh) * 2015-11-05 2017-05-17 索尼公司 无线通信方法和无线通信设备
CN108199726B (zh) * 2018-03-16 2020-08-28 Oppo广东移动通信有限公司 多路选择开关及相关产品
CN114726425B (zh) * 2022-04-14 2023-06-09 哈尔滨工业大学（深圳） 基于移相器开关控制的波束成形方法、装置、无线通信系统及存储介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056961A (en) * 1957-08-15 1962-10-02 Post Office Steerable directional random antenna array
US3270336A (en) * 1963-06-25 1966-08-30 Martin Marietta Corp Eliminating multiple responses in a grating lobe antenna array
GB1171626A (en) * 1966-08-31 1969-11-26 Marconi Co Ltd Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor
FR1564646A (it) * 1968-02-09 1969-04-25
US3631503A (en) * 1969-05-02 1971-12-28 Hughes Aircraft Co High-performance distributionally integrated subarray antenna
GB1278891A (en) * 1970-04-18 1972-06-21 Marconi Co Ltd Improvements in or relating to scanning aerial systems and associated feeder arrangements therefor
US3710281A (en) * 1970-12-10 1973-01-09 Itt Lossless n-port frequency multiplexer
US3713158A (en) * 1971-04-26 1973-01-23 Litton Systems Inc Digital feed system for electronic antenna array
US3731316A (en) * 1972-04-25 1973-05-01 Us Navy Butler submatrix feed for a linear array
US3803625A (en) * 1972-12-18 1974-04-09 Itt Network approach for reducing the number of phase shifters in a limited scan phased array
US3964066A (en) * 1975-01-02 1976-06-15 International Telephone And Telegraph Corporation Electronic scanned cylindrical-array antenna using network approach for reduced system complexity
US4045800A (en) * 1975-05-22 1977-08-30 Hughes Aircraft Company Phase steered subarray antenna
US4041501A (en) * 1975-07-10 1977-08-09 Hazeltine Corporation Limited scan array antenna systems with sharp cutoff of element pattern
US4052723A (en) * 1976-04-26 1977-10-04 Westinghouse Electric Corporation Randomly agglomerated subarrays for phased array radars
US4080605A (en) * 1976-08-26 1978-03-21 Raytheon Company Multi-beam radio frequency array antenna

Also Published As

Publication number Publication date
IT1121399B (it) 1986-04-02
FR2428925B1 (it) 1984-05-11
DE2924141A1 (de) 1979-12-20
AU531239B2 (en) 1983-08-18
FR2428925A1 (fr) 1980-01-11
US4318104A (en) 1982-03-02
AU4785379A (en) 1979-12-20
CA1121910A (en) 1982-04-13

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