ZA201202632B - Omnidirectional antenna with a null in a selected direction - Google Patents

Omnidirectional antenna with a null in a selected direction

Info

Publication number
ZA201202632B
ZA201202632B ZA2012/02632A ZA201202632A ZA201202632B ZA 201202632 B ZA201202632 B ZA 201202632B ZA 2012/02632 A ZA2012/02632 A ZA 2012/02632A ZA 201202632 A ZA201202632 A ZA 201202632A ZA 201202632 B ZA201202632 B ZA 201202632B
Authority
ZA
South Africa
Prior art keywords
null
omnidirectional antenna
selected direction
omnidirectional
antenna
Prior art date
Application number
ZA2012/02632A
Inventor
Gordon Mayhew-Ridgers
Jaarsveld Paul Andries Van
Original Assignee
Vodacom (Proprietary) Ltd
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 Vodacom (Proprietary) Ltd filed Critical Vodacom (Proprietary) Ltd
Publication of ZA201202632B publication Critical patent/ZA201202632B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2611—Means for null steering; Adaptive interference nulling
    • H01Q3/2617—Array of identical elements
    • H01Q3/2623—Array of identical elements composed of two antennas
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
ZA2012/02632A 2011-04-12 2012-04-12 Omnidirectional antenna with a null in a selected direction ZA201202632B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA201102711 2011-04-12

Publications (1)

Publication Number Publication Date
ZA201202632B true ZA201202632B (en) 2014-10-29

Family

ID=46025831

Family Applications (2)

Application Number Title Priority Date Filing Date
ZA2012/02632A ZA201202632B (en) 2011-04-12 2012-04-12 Omnidirectional antenna with a null in a selected direction
ZA2014/04722A ZA201404722B (en) 2011-04-12 2014-06-26 Omnidirectional antenna with a null in a selected direction

Family Applications After (1)

Application Number Title Priority Date Filing Date
ZA2014/04722A ZA201404722B (en) 2011-04-12 2014-06-26 Omnidirectional antenna with a null in a selected direction

Country Status (2)

Country Link
WO (1) WO2012140586A1 (en)
ZA (2) ZA201202632B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5697052B2 (en) * 2012-11-23 2015-04-08 古河電気工業株式会社 Array antenna device
CN113644437B (en) * 2021-08-19 2024-07-23 深圳市塞防科技有限公司 Microstrip antenna and millimeter wave radar

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI990395A (en) * 1999-02-24 2000-08-25 Nokia Networks Oy Hardware for attenuating interference between antennas
DE19931907C2 (en) * 1999-07-08 2001-08-09 Kathrein Werke Kg antenna
WO2004027921A2 (en) * 2002-09-17 2004-04-01 Ipr Licensing, Inc. Multiple pattern antenna
WO2004068633A1 (en) * 2003-02-01 2004-08-12 Qinetiq Limited Phased array antenna and inter-element mutual coupling control method
EP1498986A1 (en) * 2003-07-16 2005-01-19 Koninklijke KPN N.V. Antenna system for generation and utilizing several small beams from several wide-beam antennas
US7202824B1 (en) * 2003-10-15 2007-04-10 Cisco Technology, Inc. Dual hemisphere antenna

Also Published As

Publication number Publication date
WO2012140586A1 (en) 2012-10-18
ZA201404722B (en) 2017-08-30

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